Backend Software Engineer at Cardless | San Francisco

About braintrustBraintrust is at the forefront of AI observability, merging evaluation and observability into a seamless workflow. Our platform empowers developers to gain critical insights into AI behavior in production environments and provides tools for optimization.Renowned companies such as Notion, Stripe, Zapier, Vercel, and Ramp leverage Braintrust to assess models, test prompts, and identify regressions, transforming production data into enhanced AI performance with each update.About the RoleWe are seeking a passionate Backend Engineer to contribute to the foundational infrastructure of innovative AI development tools.Braintrust operates as a real-time, highly available data platform within both SaaS and self-hosted ecosystems. Your contributions will be pivotal in scaling our data ingestion pipelines, enhancing our open-source libraries, and ensuring optimal system performance and reliability. If you excel in a dynamic environment and relish tackling complex systems challenges with a product-oriented mindset, we would love to collaborate with you.Your ResponsibilitiesAs a Backend Engineer at Braintrust, you will play a key role in shaping the core platform that facilitates LLM-native development:Design and deploy features that provide users with profound insights into their LLM utilization and performance metrics.Integrate, proxy, cache, and aggregate data from leading model providers such as OpenAI, Anthropic, and Gemini, which our clients depend on.Create and refine robust, efficient open-source libraries for tracing and evaluating LLM calls within client applications. Explore our SDKsDevelop highly available real-time data pipelines to ingest, store, and query extensive volumes of structured and semi-structured AI usage data.You will also collaborate closely with product engineers to deliver polished, comprehensive features that address real customer challenges, including:Bundling and uploading JavaScript and Python code snippets for on-demand function calls in LLM workflows.Facilitating the parsing and uploading of attachments from LLM multimodal outputs for long-term storage.Implementing role-based access controls and data retention protocols for enterprise scenarios.

About braintrustBraintrust is at the forefront of AI observability. By merging evaluation and observability into a singular workflow, we empower developers with the insights needed to comprehend AI behavior in production environments, along with the tools to enhance it.Leading teams at Notion, Stripe, Zapier, Vercel, and Ramp utilize Braintrust to compare models, test prompts, and monitor regressions — transforming production data into superior AI with each new release.About the roleWe are in search of a passionate software engineer dedicated to crafting high-performance data processing systems. Our clientele consists of large enterprises handling complex, semi-structured data, which they require for real-time processing and analysis. Our distinct architecture enables these organizations to keep data on-premises while creating intricate visualizations that load without delay. Explore our Brainstore blog post.If you have experience with database systems, compilers, networks, or storage systems and aspire to pivot your expertise into the AI sector, this role could be your ideal fit. You will significantly influence foundational system architecture, technology selection, and implementation. Our founding team possesses extensive knowledge in database and ML systems, and you will have the autonomy to collaborate closely with them while exploring your innovative ideas.Your ResponsibilitiesAs a systems engineer at Braintrust, you’ll contribute to the core systems that empower Braintrust’s capability to process and query vast amounts of unstructured data at an enterprise scale. Key areas of responsibility include:Enhancing the storage, indexing, and query execution performance of Brainstore.Developing Braintrust's btql query language.Optimizing query patterns to boost performance across our platform.QualificationsDeep understanding of systems programming (C++ or Rust, concurrency, databases, operating systems).Experience in founding or working at startups is advantageous.Familiarity with writing prompts or experimenting with GPT models and applications.BenefitsComprehensive medical, dental, and vision insurance.Daily lunch, snacks, and beverages provided.Flexible time off policy.Competitive salary with equity options.

About UsBraintrust is at the forefront of AI observability, seamlessly integrating evaluations and observability into a single workflow. Our platform empowers innovators by providing them with the critical insights needed to understand AI performance in production environments and the tools required to enhance it.Recognized by leading companies such as Notion, Stripe, Zapier, Vercel, and Ramp, Braintrust enables teams to compare AI models, test prompts, and detect regressions, transforming production data into superior AI with each iteration.Role OverviewWe are seeking a talented Cloud Infrastructure Engineer to join our team and contribute to the development of a robust and scalable infrastructure. You will provide developers with a premium platform to deploy code efficiently and confidently. Your role will involve leading initiatives across Terraform, Kubernetes, CI/CD, observability, and support, significantly impacting Braintrust's internal operations and the self-hosted experiences of our customers.This position is pivotal as you will manage our AWS environment while assisting customers in deploying our infrastructure on AWS, Azure, and GCP.Your ResponsibilitiesDevelop and maintain Terraform modules for both internal infrastructure and customer deployments.Engage directly with customers via Slack to assist with self-hosting and troubleshoot infrastructure challenges, creating tools to simplify their support process.Take ownership of our CI/CD pipeline, aiming to reduce build times, enhance failure visibility, and facilitate safer, quicker releases.Centralize and scale observability through logs, metrics, dashboards, and alerts.Collaborate with engineering teams to create and enhance a secure, developer-friendly infrastructure platform.Support multi-cloud deployment strategies, primarily in AWS, while also extending support for Azure and GCP for our enterprise clientele.Implement tools and automation to bolster deployment, rollback, and infrastructure reliability.Ideal Candidate ProfileA minimum of 5 years of experience in DevOps, SRE, or Infrastructure Engineering roles.In-depth knowledge of Terraform and experience with at least one major cloud provider, preferably AWS.Proficient in Kubernetes, with capabilities in deploying, debugging, and scaling real workloads.Strong programming skills in scripting languages like Python, Typescript, or Go.Experience in supporting production systems and managing incidents effectively.Comfortable working closely with customers in a support or deployment capacity.Bonus: Familiarity with monitoring and logging tools, as well as knowledge of security best practices.

About BraintrustBraintrust is a cutting-edge AI observability platform that integrates evaluation and observability into a single workflow. By providing builders with unparalleled visibility into AI performance in production, Braintrust empowers teams to enhance AI capabilities. Industry leaders such as Notion, Stripe, Zapier, Vercel, and Ramp rely on Braintrust to analyze models, test prompts, and identify regressions, transforming production data into superior AI outcomes with each release.About the RoleWe are seeking an enthusiastic Technical Recruiter who excels in navigating the uncertainties of early-stage environments and is passionate about influencing Braintrust's growth trajectory. As a product and engineering-centric organization, the quality of our hires plays a pivotal role in our success.In this position, you will collaborate closely with engineering teams and leadership, taking ownership of the full recruitment process for exceptional technical talent. This hands-on role is ideal for those who enjoy developing recruitment systems while staying engaged with the day-to-day work. If you thrive in dynamic environments and wish to significantly impact a company’s direction, we want to hear from you!Key ResponsibilitiesManage the end-to-end recruitment process for engineering positions, emphasizing quality and candidate experience.Work in tandem with engineering leaders to identify roles, assess talent, and make informed hiring decisions.Effectively communicate Braintrust's mission, significance, and current initiatives, acting as a trusted guide for candidates throughout their journey.Identify and implement strategies to enhance our recruiting approach, interview protocols, employer branding, and candidate experience as we scale.Develop and sustain a robust pipeline of elite technical talent, including passive candidates across various disciplines.Meticulously track recruiting metrics to evaluate effectiveness, identify areas for improvement, and guide strategic experiments.Provide actionable insights to leadership regarding market trends, candidate perceptions, and the effectiveness of our narrative.Seek opportunities to optimize workflows and enhance recruiting operations while maintaining high standards.

About BraintrustBraintrust is a cutting-edge AI observability platform that seamlessly connects evaluations and observability within a single workflow. This innovative approach empowers builders with the insights required to comprehend AI behavior in production environments and the necessary tools for enhancement.Our platform is trusted by leading teams at Notion, Stripe, Zapier, Vercel, and Ramp, who utilize Braintrust to compare models, test prompts, and identify regressions—transforming production data into superior AI with every release.Your RoleComprehensive Event ManagementPlan and execute a variety of events including conferences, meetups, hackathons, partner events, webinars, and curated gatherings from conception to completion.Oversee venue selection, run-of-show logistics, vendor management, signage, staffing, shipments, promotional items, hospitality, and demonstrations.Ensure every detail is meticulously executed—timing, flow, aesthetics, and overall attendee experience.Collaborate with the Sales team on high-impact regional programs designed to create and accelerate sales pipeline.Develop pre/post-event workflows and dashboards to track conversion, sourcing, influence, and ROI.Partner with Developer Relations on workshops, demos, hackathons, and community engagements that inspire AI engineers.Amplifying the Braintrust BrandWork with Product Marketing and Design teams to create unforgettable experiences—from exhibition booths to dining events and workshop kits.Utilize your aesthetic judgment to ensure Braintrust makes a lasting impression.Translate our technical narrative into engaging field experiences.Regional Strategy & ExecutionDevelop scalable playbooks for field marketing strategies tailored for both the West and East Coast.Utilize your extensive knowledge of local venues, communities, and partners to enhance event quality.Proactive Problem SolvingAct quickly, remove obstacles, and manage programs independently.Take ownership of deadlines, budgets, vendor relations, and cross-functional coordination.Effectively manage multiple workstreams while maintaining attention to detail.Candidate Profile3–7+ years of experience in field marketing, event management, or go-to-market roles, preferably within B2B SaaS, developer tools, or AI infrastructure sectors.Proven ability to engage technical audiences—developers, machine learning engineers, and data teams—through immersive experiences and compelling content.

About BraintrustBraintrust is revolutionizing AI observability. Our platform seamlessly integrates evaluations and observability within a single workflow, empowering developers with the insights necessary to comprehend AI behavior in production environments while providing tools for continuous improvement.Organizations such as Notion, Stripe, Zapier, Vercel, and Ramp utilize Braintrust to analyze models, experiment with prompts, and detect regressions—transforming production data into enhanced AI functionalities with every iteration.Role OverviewWe are seeking motivated Sales Development Representatives to proactively identify and engage potential prospects for Braintrust. The perfect candidate will possess a curious mindset, a genuine interest in the AI technology landscape, and the ability to hold insightful and technical discussions with prospective clients.Key ResponsibilitiesConduct thorough research to identify and connect with prospects across targeted accounts via multi-channel outreach, including phone calls, emails, and LinkedIn communications.Achieve established monthly meeting goals that directly contribute to the company’s revenue growth.Pinpoint key decision-makers and advocates within large enterprise and strategic accounts.Remain informed about industry trends and advancements in AI to effectively engage with prospects.QualificationsBachelor's degree or equivalent practical experience in a relevant discipline.A minimum of 1 year in a sales or comparable role, demonstrating a history of success and high performance.Ability to operate independently in a fast-paced environment, managing multiple priorities with a focus on results.Strong interpersonal and communication skills, adept at engaging and building relationships with a technical audience.A passion for making a meaningful impact and collaborating with a team to achieve key objectives and metrics.BenefitsComprehensive medical, dental, and vision insuranceDaily lunch, snacks, and beverages providedFlexible time off policyCompetitive salary and equity optionsAI Stipend to support professional developmentEqual Opportunity EmployerBraintrust is proud to be an equal opportunity employer. We welcome applicants from all backgrounds without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, or disability status.

About UsBraintrust is revolutionizing AI observability. By merging evaluation and observability into a single workflow, we empower developers with the insights necessary to understand AI performance in real-world applications, enabling ongoing enhancements.Our platform is trusted by leading companies like Notion, Stripe, Zapier, Vercel, and Ramp to streamline model comparisons, prompt testing, and regression detection — transforming production data into refined AI with each iteration.Role OverviewWe are seeking a skilled Customer Solutions Architect to join our dynamic Field Engineering team. This pivotal position is highly technical and client-focused, aimed at assisting teams in deploying and managing Braintrust in their production environments.You will collaborate with platform, DevOps, and machine learning infrastructure teams within pioneering AI-centric organizations to ensure Braintrust operates seamlessly—whether in our managed cloud or within their private infrastructures. Your expertise will be essential in evaluating and monitoring LLM-driven applications, enabling effective evaluation workflows through robust infrastructure support. You will assist with deployments, troubleshoot multi-layer issues, and advocate best practices for scalability, security, and maintainability.This role combines solution design, proactive support, and infrastructure advisory, making it perfect for someone passionate about resolving real-world challenges through coding, systems knowledge, and a strong customer-centric approach.Your ResponsibilitiesCustomer Enablement & SupportServe as a trusted advisor for customers deploying and scaling Braintrust in production settings.Lead onboarding and implementation efforts, assisting in the setup of customer-hosted infrastructures, configuration of observability pipelines, evaluation workflows, and integration with third-party applications.Troubleshoot customer issues across various layers (e.g., SDKs, cloud infrastructure, model outputs), coordinating with product and engineering teams as necessary.Manage proactive health checks, upgrade support, and reliability best practices for clients running self-hosted deployments.Solution Design & ImplementationDesign and document comprehensive customer evaluation pipelines utilizing Braintrust SDKs and APIs.Create technical artifacts (scripts, templates, notebooks) that facilitate onboarding and enhance our customer support capabilities, or showcase platform functionalities.Advise on architectural decisions regarding LLM evaluation, prompt versioning, and structural best practices.

About BraintrustBraintrust is revolutionizing the AI observability landscape. Our platform uniquely integrates evaluations and observability within a single workflow, empowering developers to gain deep insights into AI performance in production. This visibility enables teams to enhance AI capabilities effectively.Leading companies like Notion, Stripe, Zapier, Vercel, and Ramp leverage Braintrust to refine their models, test prompts, and detect regressions, transforming production data into superior AI with each deployment.Role OverviewWe are seeking a driven Commercial Account Executive to spearhead the acquisition of new business opportunities while nurturing existing client relationships. Your primary focus will be identifying potential clients, cultivating leads, and successfully closing sales.Your ResponsibilitiesContribute to our foundational sales team by shaping our go-to-market strategy and securing pivotal customer accounts.Achieve and surpass quarterly and annual sales targets.Oversee the full sales cycle: from prospecting to sales meetings and negotiations.Manage the complete sales process, engaging potential customers, negotiating deals, ensuring customer retention, and handling renewals.Navigate intricate sales scenarios and build trust through consultative conversations with technical teams.Ideal Candidate Profile1-3+ years of comprehensive sales experience targeting technical audiences.Exceptional communication skills across all channels (in-person, digital, written), fostering strong relationships both physically and virtually.A passion for diving deep into our product, enabling technical discussions with AI-focused teams.Eager to take initiative and drive substantial impact to exceed revenue expectations.Demonstrated strong work ethic, competitive spirit, and the ability to inspire and motivate peers.Thrives in dynamic environments with evolving priorities and deadlines.Perks and BenefitsComprehensive medical, dental, and vision coverageDaily lunches, snacks, and beveragesFlexible paid time offCompetitive salary and equity optionsAI-related stipendDiversity and InclusionBraintrust is proud to be an equal opportunity employer, welcoming applicants from diverse backgrounds and experiences.

About BraintrustBraintrust stands at the forefront of AI observability, seamlessly integrating evaluations and observability into a unified workflow. This innovative platform empowers developers with unparalleled visibility into AI behavior in production, paired with robust tools for ongoing improvement.Leading companies such as Notion, Stripe, Zapier, Vercel, and Ramp leverage Braintrust to analyze models, test prompts, and identify regressions, converting production data into enhanced AI with every iteration.About the RoleWe are in search of a dynamic Brand Lead to redefine how the world perceives Braintrust. In this pivotal role, you will establish and evolve our visual identity, positioning us as the preeminent leader in AI observability. You will create visual systems that infuse our brand identity across all platforms, including our website, product interfaces, advertising materials, and go-to-market strategies.The ideal candidate is a visual storyteller adept at crafting brands that deeply resonate with their audience. You will spearhead our design strategy across various channels, including web, campaigns, events, and promotional materials, translating our mission into a cohesive visual language that engages developers. Collaboration with a multidisciplinary design team and close partnership with marketing and sales will be essential to bring the brand to life.Key ResponsibilitiesDefine and enhance our visual identity, creating a brand that authentically speaks to developers and firmly establishes Braintrust as the go-to platform for AI observability.Lead creative initiatives for significant events, including product launches, landing page designs, and sales campaigns.Drive the creative strategy and execution in collaboration with internal teams and external partners, ensuring every brand expression is purposeful and impactful.Shape the strategic vision for our visual aesthetic, developing systems that scale while upholding high creative standards.Establish the benchmark for our brand experience by defining design principles, guidelines, and systems that guarantee consistency and quality.Adapt quickly and deliver consistently, thriving in a fast-paced environment where speed and craftsmanship coexist.Create brand experiences that feel intuitive, elevated, and tailored for technical audiences.QualificationsA robust portfolio showcasing your ability to develop compelling and cohesive brand experiences.Fluency in design fundamentals, including typography, color theory, and composition, with the discernment to know when to adhere to rules and when to creatively innovate.Demonstrated experience leading creative projects across various formats, ensuring high-quality outputs.

Join 10alabs as a Backend Software Engineer where you will play a vital role in designing and developing robust backend systems. You will work closely with cross-functional teams to create scalable and efficient software solutions that meet the needs of our clients. If you are passionate about technology and eager to tackle complex challenges, we want to hear from you!

Role OverviewLocated in the heart of San Francisco, CA, this position is integral to our headquarters and does not support full-time remote work.Compensation for this role ranges from $150,000 to $250,000 annually, depending on experience, along with equity and comprehensive benefits.About FurtherAIAt FurtherAI, we are pioneering advanced AI agents tailored for the insurance sector, a market primed for innovation worth trillions. Having successfully secured over $30 million from prestigious investors such as Andreessen Horowitz, Y Combinator, Nexus, South Park Commons, and Converge, we've experienced a remarkable tenfold revenue growth this year. Our clientele includes some of the most renowned names in insurance, including a top 5 global insurance company. Our team merges profound AI knowledge with extensive entrepreneurial experience.We are currently seeking an extraordinary Software Engineer to join our foundational team and help shape our product and organizational culture.Why Work With Us?Accelerated Growth: Experience rapid revenue growth post-product-market fit.Exceptional Team: Our founding group features talents from Apple AI Research, four ex-Y Combinator founders, and six successful entrepreneurs. Our engineering team boasts backgrounds from Apple, Microsoft, Google, and Amazon.Deep Technical Challenges: Collaborate with a staff research scientist and a team of seven engineers tackling advanced AI and scalable backend solutions.Significant Market Influence: Our work is transformative, reshaping the insurance industry's operational landscape.Entrepreneurial Spirit: Ideal for those looking to take ownership of critical product areas and possibly launch their own ventures in the future.Your ResponsibilitiesDevelop and enhance the core product, ensuring optimal performance, reliability, and ongoing improvements.Take charge of substantial elements of the backend architecture using Python.Work closely with founders to define and guide the technical roadmap.Embrace a culture of extreme ownership within a dynamic, high-performance environment.Engage in-person at our San Francisco office (5 days a week).

About HappyRobotHappyRobot is a pioneering AI-native operating system designed for the real economy. We bridge the gap between intelligence and action by integrating real-time insights, specialized AI operatives, and orchestrating intelligence. Our technology empowers enterprises to manage complex, mission-critical operations with genuine autonomy.Our AI OS continually enhances knowledge, optimizes processes, and adapts over time. We are focusing initially on supply chain and large-scale industrial operations, where resilience, speed, and ongoing improvement are crucial—allowing humans to concentrate on strategy, creativity, and other high-value activities.Discover more about our vision in our Manifesto. To date, HappyRobot has secured $62M in funding, including a recent $44M Series B round in September 2025. Our investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10—partners who share our commitment to transforming enterprise operations. We are channeling this investment into building a world-class team—individuals with relentless drive, exceptional problem-solving abilities, and a passion for pushing boundaries in a dynamic, high-intensity setting. If this resonates with you, consider joining HappyRobot.About The RoleAt HappyRobot, Backend Software Engineers take ownership of critical components of our product and infrastructure from inception to deployment. We are seeking passionate builders who excel in uncertain environments, value craftsmanship, and desire true ownership of their creations.

Join Our Innovative Team at ClericAt Cleric, we are on a mission to develop a cutting-edge autonomous AI agent designed to investigate and resolve production incidents efficiently. Our state-of-the-art agent utilizes large language models (LLMs) alongside advanced tools to comprehend complex systems, analyze problems, and implement corrective measures, even for unprecedented issues.Our technology is already making waves in high-scale companies across various sectors, including fintech, ride-sharing, and autonomous vehicles.About the RoleWe are seeking a talented Backend Software Engineer to join our dynamic team in scaling our autonomous agent technology. This position is perfect for engineers eager to develop, deploy, and enhance AI systems within real-world environments.You will collaborate closely with senior engineers on agent reasoning, integrations, and runtime systems, playing a pivotal role in delivering impactful customer-facing features.Your ResponsibilitiesEnhance capabilities of our autonomous agent and streamline tool execution workflowsDevelop and expand integrations with existing production systemsAssist in creating tools for agent evaluation and observabilityPartner with senior engineers to design, implement, and deliver new featuresGain insights into building reliable AI systems for production environmentsQualifications1–2 years of professional experience in software engineeringStrong understanding of software engineering principles and system designProficiency in Python (familiarity with other programming languages is a plus)A keen interest in AI, machine learning, and agentic systemsA passion for rapid learning and tackling real-world production challengesPreferred SkillsFamiliarity with AI/ML systems or LLM-based productsExperience with distributed systems or cloud infrastructureBackground in startup or fast-paced team settingsOur Work CultureSmall teams that create a significant impactEncouragement of radical candor in a supportive environmentEmphasis on in-person collaborationAn AI-first approach in all our endeavors

Astranis is revolutionizing space communications by constructing advanced satellites for high orbits, enabling humanity to expand its reach into the solar system. Our satellites currently deliver dedicated, secure networks to a diverse range of sophisticated clients globally, including large corporations, government entities, and the US military. With five satellites successfully in orbit and many additional launches on the horizon, we are addressing a robust backlog of over $1 billion in commercial contracts.As the preferred satellite communications partner for customers with stringent uptime, data security, network visibility, and customization requirements, Astranis has successfully secured over $750 million in funding from top investors, including Andreessen Horowitz, Blackrock, and Fidelity. Our team of 450 engineers and entrepreneurs works out of our impressive 153,000 sq. ft. headquarters in Northern California, USA, where we design, build, and operate our satellites.Backend Software EngineerBefore a satellite can be launched into orbit, it undergoes a comprehensive process that includes financing, procurement, manufacturing, and testing. As a Backend Software Engineer, you will play a pivotal role in constructing the software systems that facilitate spacecraft development, testing, and manufacturing, ensuring seamless integration with our supply chain. This high-impact role encompasses multiple domains—from procurement and manufacturing to cloud services and data pipelines—contributing significantly to efficient engineering workflows, business intelligence, and scalable flight operations.In this role, you will collaborate closely with cross-functional teams, including hardware engineers, manufacturing specialists, operations personnel, and satellite flight control teams, to develop internal tools that streamline processes and accelerate development. You will be responsible for owning and delivering scalable systems that enable us to efficiently build, test, and launch satellites.This position supports both commercial and US Government satellite programs.

Why Choose Doppel?At Doppel, we are at the forefront of combating one of the most significant challenges posed by artificial intelligence: the prevalence of sophisticated social engineering tactics. With an alarming rise in scams, deepfakes, and other malicious attacks across various digital platforms—including websites, social media, advertisements, and encrypted messaging apps—our mission is both ambitious and vital: to create a safer internet by outsmarting these rapidly evolving digital threats.Supported by leading investors like a16z and Bessemer, and trusted by globally recognized brands such as OpenAI, United Airlines, and Coinbase, Doppel is expanding rapidly. If you are passionate about leveraging bold technology to tackle real-world challenges, we want to connect with you.Our VisionWe are developing an AI-native platform dedicated to defending against social engineering attacks.This entails creating scalable systems that continuously monitor billions of domains, social media accounts, applications, dark web forums, and more, utilizing AI agents to detect and neutralize digital threats effectively.Your RoleWe are seeking a seasoned backend engineer to design and enhance an automated system aimed at streamlining various Security Analyst functions. Our objective is to verify and neutralize threats within minutes through AI-driven automation. Recent achievements include:Developed a sophisticated LLM engine that quadrupled verification efficiency for our highest volume product line, enabling rapid takedowns at scale.Created a QA and data labeling tool to facilitate a seamless feedback loop among human analysts, machine learning models, and LLM agents.As a member of our San Francisco team (in-office a minimum of three days a week), you will:Play a vital role in developing systems that safeguard billions from AI-generated scams and digital threats.Take ownership of projects from gathering product requirements to continuously evaluating and refining released features.Mentor junior engineers, nurture a high-performance team culture, and contribute to shaping the team’s roadmap.Participate in monthly team dinners, happy hours, and social events (including outings to the Exploratorium, Valkyries games, etc.).What We Provide A mission-driven culture characterized by humility, high accountability, deep customer focus, and an abundance of exceptional talent. Complimentary lunch and dinner provided in the office. Flexible Paid Time Off (PTO).

About CollateCollate is a cutting-edge AI-driven document generation platform specifically designed for the life sciences sector. Our innovative technology automates the paperwork process, enabling our clients to deliver life-saving medical innovations to patients significantly faster. As a comprehensive solution, Collate supports every phase of development for drugs, diagnostics, and medical devices—from initial concept to market launch.Our visionary CEO Surbhi Sarna, a former General Partner at Y Combinator, founded nVision Medical, which pioneered a novel method for detecting ovarian cancer before its acquisition by Boston Scientific. Our CTO Nate Smith, previously a Visiting Partner at Y Combinator and founder of Lever, leads our talented team of AI researchers, engineers, and designers who have backgrounds at industry giants such as Google, Nvidia, Meta, Netflix, Amazon, Airbnb, Hippocratic AI, and Grail. Notably, 40% of our team members are former startup founders themselves.As a compact yet highly skilled team, we have secured over $30M in seed funding from top-tier investors including Redpoint, First Round Capital, Conviction, and Y Combinator, as well as healthcare and AI leaders. This is a unique opportunity to join a company at the forefront of transformative change, guided by experienced founders with the resources to scale effectively.About the RoleWe are seeking a talented Backend Engineer who will play a crucial role in designing and scaling the systems that underpin Collate’s offerings. You will be responsible for developing APIs, services, and the infrastructure that form the backbone of our platform, ensuring they are efficient, dependable, and secure as we transition from prototypes to large-scale implementation.This position is perfect for individuals who thrive on tackling complex system challenges, flourish in an early-stage setting, and wish to see their contributions directly impact advancements in the life sciences field.Modern Tech StackCollate employs a contemporary tech stack aimed at delivering a highly reliable and available platform. Our backend services are built using Go, while we utilize Postgres as our primary database. Frontend development is powered by TypeScript and React, and Python is utilized for AI and machine learning services. Our infrastructure is hosted on AWS, employing Kubernetes for orchestration along with Terraform and Argo CD for configuration management.

Founded in the heart of Silicon Valley in 2009 by visionary entrepreneurs Marc Andreessen and Ben Horowitz, Andreessen Horowitz, commonly referred to as a16z, is a prominent venture capital firm committed to supporting audacious entrepreneurs who are shaping the future through technology. We are stage agnostic, investing across various stages from seed to venture and growth-stage technology companies. Our diverse portfolio spans industries including AI, bio + healthcare, consumer, crypto, enterprise, fintech, games, and initiatives promoting American dynamism. With $90 billion under management across multiple funds, we are at the forefront of innovation and investment.Our team is characterized by a profound respect for entrepreneurs and the intricate process of building companies. We have proudly invested in groundbreaking companies such as Anduril, Airbnb, Coinbase, Cursor, Databricks, Deel, Figma, GitHub, Roblox, SpaceX, and Stripe. We are dedicated to empowering founders and their teams to create significant impacts in the world.

Join Layerfi as a Backend EngineerAt Layerfi, we are revolutionizing the accounting landscape for small and medium-sized businesses (SMBs). With a decade of experience, we’ve established a powerful ecosystem of software tools that facilitate various business operations. However, the accounting sector has fallen behind, leaving SMBs to struggle with disjointed software and costly bookkeeping services.We are creating a cutting-edge accounting software that seamlessly integrates with the existing tools that SMBs rely on daily. Our platform empowers software companies to deliver modern accounting solutions and bookkeeping services to their clients, eliminating the need for outdated tools and expensive bookkeepers.Your RoleWe seek engineers who aspire to build not just products but also a strong team and company. This requires a blend of technical expertise across our tech stack along with unique skills such as:Forward-thinking coupled with a deep understanding of customer needs.A keen curiosity about technical and business challenges.Ability to navigate competing priorities while aligning with company objectives.A strong sense of ownership in product and team decisions.A passion for collaboration and enhancing the strengths of your colleagues.Our ideal candidates typically possess:A minimum of 2 years of experience in robust software development teams.Experience navigating the highs and lows of product development from inception to launch.A proven track record in team leadership and growth.We value proactive individuals who are eager to tackle challenges and seize opportunities, and we welcome those who reach out even if they don’t precisely meet the criteria.Our Technology StackWe do not focus on how familiar candidates are with our specific tech stack. One of the advantages of hiring exceptional engineers is our confidence in their ability to adapt and learn quickly, with support from the team. However, we do want all candidates to feel excited about the tools and environment they will engage with from day one.API language: KotlinEmbedded components: ...

At Anara, we're seeking a skilled Backend Software Engineer to join our dynamic team in San Francisco. As a key contributor, you will develop the robust infrastructure that powers our AI-driven research tools. Your expertise will help us handle the challenges of processing millions of files and scaling our services for hundreds of thousands of users.Key Responsibilities:Design and implement scalable backend systems for AI-enhanced research applications.Work collaboratively with the engineering team to optimize our retrieval pipeline, focusing on improving response quality, speed, and reliability.Establish and promote best practices for model deployment and prompt engineering.Analyze and enhance system performance while balancing cost efficiency to ensure rapid growth.Lead the design and automation of evaluation pipelines to continuously assess and improve the reliability of our AI agents.