Staff Backend Software Engineer - AI Platform

Join our innovative team at Databricks as a Staff Backend Software Engineer focusing on our cutting-edge AI Platform. In this pivotal role, you will be responsible for designing, developing, and optimizing backend systems that empower data scientists and engineers to build AI applications efficiently.As a key contributor, you will work closely with cross-functional teams to deliver scalable solutions that enhance our platform's capabilities. Your expertise will drive the development of robust features that support machine learning workflows and big data processing.

Join Databricks as a Staff Backend Software Engineer for our cutting-edge AI Platform. In this pivotal role, you will design and implement robust backend systems that power innovative AI solutions. Collaborate with a talented team to drive impactful projects and shape the future of data and AI.

Join Databricks as a Staff Backend Software Engineer on our cutting-edge AI Platform team. We are on a mission to simplify data and AI for enterprises worldwide. In this role, you will be pivotal in developing robust backend systems that support our AI initiatives, driving innovation and efficiency.As a member of our dynamic team, you will work with the latest technologies and methodologies to create scalable solutions that meet the needs of our clients. Your expertise will help shape the future of our AI Platform, delivering exceptional user experiences and insights.

Join Databricks as a Staff Backend Software Engineer on our AI Platform team, where you will play a pivotal role in shaping the future of data analytics and machine learning. You will work collaboratively with talented engineers to design, develop, and enhance robust backend systems that drive our cutting-edge AI solutions. Your innovative mindset and technical expertise will help us deliver unparalleled value to our customers.

Join Saris AI as a Staff Backend Software Engineer, where you will play a pivotal role in developing innovative solutions that harness the power of artificial intelligence. In this dynamic position, you will collaborate with cross-functional teams, design scalable systems, and contribute to the overall architecture of our backend solutions.

Join Anthropic as a Staff Software Engineer on our Billing Platform team. In this critical role, you will design and implement robust billing solutions that scale with our growing user base. Collaborate with cross-functional teams to enhance our billing capabilities and ensure seamless processing of transactions. Your expertise will be vital in building systems that are not only efficient but also secure and user-friendly.

About 3Y HealthAt 3Y Health, we are at the forefront of revolutionizing healthcare administration through our innovative AI business manager. Our mission is to simplify the complexities that consume nearly 40% of the healthcare industry's revenue. Our robust platform equips clinician entrepreneurs with the tools they need to effectively launch, manage, and expand their private practices. With over $200 million in backing from leading investors like Founders Fund, General Catalyst, SoftBank, and 8VC, we are committed to empowering independent providers with advanced AI and automation solutions that save time, foster business success, and enhance care delivery within their communities.Position OverviewWe are on the lookout for a Backend Engineer who is passionate about designing and scaling high-performance backend systems that drive our AI-first platform. The perfect candidate will have a strong background in developing distributed services using languages such as Go, Java, Python, or TypeScript. A solid understanding of modern API design and communication protocols (REST, gRPC, GraphQL) is essential, alongside a commitment to delivering reliable, secure, and scalable infrastructure.Ideally, you have experience integrating AI functionalities—be it through external AI APIs, managing machine learning inference pipelines, or supporting data infrastructure for model training. You're more than just a code contributor; you care about how your systems are deployed, monitored, and maintained in production. Experience with regulated data environments such as healthcare or fintech is a plus.This role is suited for a hands-on engineer who thrives in collaborative, cross-functional settings, works effectively with product and frontend teams, and proactively builds systems designed for scalability, compliance, and maintainability.

Why Join Harvey?At Harvey, we are revolutionizing the landscape of legal and professional services. Our approach is not just incremental; we aim for comprehensive, end-to-end transformation. By leveraging cutting-edge AI technology, a robust enterprise-grade platform, and unparalleled industry expertise, we are changing how knowledge work is executed for generations to come.This is a unique opportunity to contribute to a generational company at a pivotal moment. With over 1,000 clients across more than 58 countries, proven product-market alignment, and support from top-tier investors, we are rapidly scaling and creating a new category in real time. Our ambitious work ethic, high standards, and unmatched opportunities for personal, professional, and financial growth make Harvey an exceptional place to advance your career.Our team is composed of highly skilled and motivated individuals who are fully dedicated to our mission. We prioritize speed, intensity, and genuine ownership over the challenges we face, from conceptualization to long-term results. We maintain close relationships with our customers at all levels, collaborating effectively to tackle real problems with urgency and care. If you excel in a dynamic environment, strive for excellence, and are eager to help shape the future of work alongside a team that elevates standards, we encourage you to join us in this journey.At Harvey, we are actively writing the future of professional services, and we are just beginning.Position OverviewAs a Senior Backend Platform Engineer at Harvey, you will play a vital role in building and maintaining the cohesive backend platform that underpins all our services. In this mid-to-senior level position, you will design and implement shared frameworks and libraries that abstract common concerns, enhance developer experience, and elevate the standards for reliability and performance across all teams. Your mission will align with our platform vision: to create “a foundational system that empowers product teams to deliver reliable, observable, and high-performing experiences swiftly and securely.” By centralizing common tasks, you will enable product engineers to focus on delivering features efficiently rather than reinventing existing solutions. This high-impact role means that your code and systems will significantly enhance the productivity and quality of our engineering efforts across the organization.If you are passionate about developing foundational systems, addressing cross-cutting technical challenges, and empowering others to innovate with confidence, we would love to hear from you.

Join Our Mission at LeonaAt Leona, we are dedicated to empowering individuals to take charge of their health and well-being, along with that of their patients and loved ones. Our vision is clear: we aim to revolutionize the healthcare experience for everyone, making high-quality care accessible regardless of geographic location.Patients should feel empowered and comfortable in managing their health proactively, while healthcare professionals can focus on delivering exceptional care without the burden of administrative overhead. Our innovative platform enhances doctor-patient interactions via WhatsApp, acting as an AI clinical assistant to automate non-urgent tasks and provide patients with 24/7 access to their doctors.With offices in San Francisco and Mexico City, our diverse team brings a wealth of experience from renowned tech companies like Rappi, Uber, Modern Fertility, and Wonder. We are proudly supported by top-notch investors, including General Catalyst and Accel, alongside distinguished angel investors from successful firms like Nubank and Maven Clinic.If you are eager to learn, thrive in a dynamic startup environment, and are ready to roll up your sleeves to create something extraordinary, we would love to hear from you!The Challenge AheadWe are searching for a seasoned software engineer to help us scale and shape the future of Leona. Our platform is designed to transform doctor-patient communication, leveraging AI to streamline clinical workflows, reduce burnout, and enhance personalized care. If you are passionate about solving complex engineering challenges, enjoy a multifaceted role, and are excited to take products from concept to launch, this position is tailored for you.

Role overview Harvey seeks a Staff Software Engineer to strengthen the AI Platform team in San Francisco. The position focuses on designing and building advanced software solutions that extend the platform’s AI features. Collaboration is central to this role. The engineer will work closely with colleagues across different teams to deliver systems that are both scalable and efficient. Every project supports Harvey’s broader mission and long-term goals. What you will do Design and implement software components that enhance AI capabilities Work with teams throughout the company to deliver reliable, high-performance systems Contribute to platform improvements that support Harvey’s mission Location This position is based in San Francisco.

Join Our Team at Unify!At Unify, we are at the forefront of innovation, developing the first AI-driven system of action for revenue teams. Our mission is to empower organizations by transforming outbound sales into their most effective growth accelerator, making go-to-market strategies observable, repeatable, and scalable. Founded in 2023 by visionary leaders from Ramp and Scale AI, our diverse team boasts experience from renowned companies such as Airbnb, Meta, Waymo, and Monday.com.In 2024, we achieved an impressive 8x revenue growth and currently serve esteemed clients like Perplexity, Cursor, SoFi, and Justworks. We’re a dynamic and high-energy team that has successfully raised $58M from prominent investors including Thrive, Emergence, and OpenAI. Be part of our journey to redefine the future of go-to-market strategies!About Us:Founded on January 17, 2023, by Austin Hughes and Connor Heggie, Unify aims to build the premier system-of-action for go-to-market teams, starting with an end-to-end platform that facilitates warm outbound sales. Today, the outbound sales landscape is cluttered with cold, mass outreach, yielding minimal conversion rates. Our innovative platform is designed to connect sales teams with the right prospects at the perfect moment.Our remarkable growth trajectory continues, with an 8x revenue increase year-over-year, and we proudly provide services to a wide range of clients, including Guru, Justworks, Together.AI, and Hightouch. Join our passionate, driven team and help us reshape the way go-to-market strategies function.Role Overview:As a Staff Software Engineer, you will lead the development of innovative products from inception to launch, collaborating closely with our founders. You will take ownership of critical engineering projects that deliver significant value to our customers while establishing the technical groundwork for Unify. This is an opportunity to work at the cutting edge of technology, leveraging the latest advancements in AI.Your Responsibilities:Collaborate with a highly skilled team in product, design, and engineering to shape our product roadmap and engineering foundation.

At ClickUp, we are not just creating software, we are crafting the future of work! In a landscape saturated with work complexities, we envisioned a better solution. This vision led to the development of the first genuinely integrated AI workspace, seamlessly combining tasks, documents, chat, calendar, and enterprise search, all enhanced by context-sensitive AI. This empowers millions of teams to break down barriers, reclaim their time, and elevate productivity to new heights. Here at ClickUp, you will have the chance to learn, leverage, and innovate with AI in ways that will not only transform our product but also redefine the future of work itself. Join us in being part of a daring, innovative team that is reshaping possibilities! Role Overview:We are in search of a highly talented and experienced Staff AI Engineer – AI Platform to become a vital member of our ClickUp Engineering team. In this pivotal role, you will significantly contribute to the development of our core AI platform and directly utilize large language models (LLMs) to implement intelligent features across ClickUp. Your focus will be on back-end systems that facilitate scalable, dependable, and secure AI-driven capabilities, while also engaging hands-on with LLMs to address real user challenges and propel product innovation.Key Responsibilities:Design, architect, and implement scalable AI platform services to support the deployment, orchestration, and lifecycle management of LLMs and other AI models.Utilize LLMs and other AI technologies to build and enhance ClickUp’s intelligent features, collaborating closely with product and engineering teams to deliver impactful solutions.Develop and maintain robust APIs and backend systems that facilitate seamless integration of AI-enhanced features into ClickUp’s core platform.Create infrastructure for model serving, monitoring, logging, and automated evaluation to ensure high reliability and performance of AI services in production.Integrate with various LLM providers (e.g., OpenAI, Anthropic, Google) and manage model selection, routing, and fallback strategies for optimal performance and cost-efficiency.Promote best practices in AI privacy, security, and compliance, including data anonymization and secure data handling.Optimize platform performance, scalability, and cost-efficiency, utilizing cloud-native technologies and distributed systems.Stay abreast of advancements in AI infrastructure, MLOps, and LLM applications, and proactively apply relevant innovations to ClickUp’s AI platform.Collaborate cross-functionally with teams to drive AI initiatives.

JOIN OUR TEAM AS A PRINCIPAL SOFTWARE ENGINEERAs a Principal Software Engineer at Saviynt, you will take the helm in designing, developing, and scaling our core Java-based backend services that drive our multi-tenant AI platform. Your expertise will be pivotal in architecting and optimizing platform components to handle high-throughput, low-latency, and mission-critical workflows.Your role will encompass integrating and managing essential data systems, including relational databases, Redis, Elasticsearch, and LDAP, ensuring they perform reliably and are always available. You will spearhead the modernization of backend services, refactoring legacy Java components while transitioning to contemporary patterns such as reactive programming and event-driven architectures.In this collaborative environment, you will work closely with cross-functional teams across DevOps, Security, SRE, and Application Engineering to enhance platform capabilities. You will evaluate and implement scalable solutions for authentication, authorization, tenant isolation, and configuration management.As a mentor, you will guide engineers in deep Java design principles, debugging complex issues, and engineering for reliability. You will also be responsible for developing and maintaining platform APIs, service orchestration logic, and critical workflows that support core business operations. Your keen eye will help identify and remediate bottlenecks in Java services, JVM performance, and memory management. Additionally, you will build automation and guardrails that enhance developer productivity and service reliability through CI/CD pipelines and code linting.Partnering with architecture and leadership, you will drive the long-term technical strategy and evolution of our platform.

In a world where software is rapidly evolving, artificial intelligence is at the forefront of this transformation. At Scale AI, we recognize the immense potential of AI to significantly enhance human capabilities. Imagine having a personal tutor, coach, assistant, shopper, travel guide, and therapist available to you throughout your life. As global industries adapt to this revolutionary landscape, leading platform companies are racing to develop large language models (LLMs) at an unprecedented scale, while enterprises strive to integrate these technologies into their existing products. Ensuring these models are safe, aligned, and genuinely useful requires meticulous human evaluation and reinforcement learning from human feedback (RLHF) throughout their development cycle. This innovative approach has given ChatGPT a substantial advantage in the marketplace.At Scale, our offerings include the Generative AI Data Engine, SGP, Donovan, and other advanced tools that drive the most sophisticated LLMs and generative models globally. Our world-class RLHF, human data generation, model evaluation, safety, and alignment are crucial in shaping how humanity will interact with AI.The backbone of these products is our Platform Engineering team. As a Staff Software Engineer, you will play a pivotal role in defining and executing the architectural roadmap and implementation of essential platforms and software systems. You will provide a visionary approach while promoting adoption across our engineering organization for orchestration, data abstraction, data pipelines, identity and access management, and foundational cloud infrastructure. This role offers the opportunity to engage with cutting-edge AI advancements as Scale collaborates with enterprises, startups, governments, and leading tech companies.

Role overview MidiHealth seeks a Staff Software Engineer for its Platform Engineering team. This hybrid role is based in the San Francisco Bay Area and centers on building software that supports the platform’s growth, performance, and usability. What you will do Design and develop software solutions that address platform engineering challenges Collaborate with experienced engineers to improve reliability and expand platform features Contribute to efforts that boost performance and create a smooth user experience Location This position requires a hybrid schedule, including on-site work in the SF Bay Area.

What artisan IsAt artisan, we are pioneering the development of AI employees—autonomous digital workers capable of performing real jobs, beyond just being chatbots or copilots.Our flagship product, Ava, serves as an AI Business Development Representative (BDR) utilized by hundreds of companies. Ava conducts lead research, composes and dispatches emails in the voice of the customer, orchestrates complex outbound sequences, manages her own deliverability infrastructure, optimizes her performance over time, and adeptly addresses objections while booking meetings. She is not merely a tool; she is a true teammate.As a YC W24 company, we have raised over $35 million from esteemed investors, including Y Combinator, and currently boast an annual recurring revenue (ARR) exceeding $8 million. We are in the process of developing Ava 2.0, a transformative iteration that will redefine the capabilities of AI employees. The engineering challenges we face are significant, with a broad surface area to navigate.The RoleIn this foundational engineering role, you will be responsible for developing the backend that enables our AI employees to function effectively.We process millions of signals, including lead data, email engagement, deliverability metrics, and behavioral patterns, to facilitate autonomous decision-making. The backend is integral to our operations, powering the AI, running the platform, and influencing Ava's performance for each customer. You will take ownership of significant components of this system.Here’s what your work will entail:High-throughput AI orchestration.Design and construct the services and pipelines that empower Ava to process substantial volumes of signals and render swift, reliable decisions.Platform infrastructure.Artisan integrates an entire sales stack—covering email infrastructure, CRM, lead databases, campaign engines, inbox management, and AI coordination—into a single product. You will be entrusted with key aspects of this platform.High ownership, end to end.You will design, build, deploy, and monitor projects. We emphasize a holistic approach, where architecture and implementation are intertwined. You will be accountable for outcomes, not merely task lists.Our pace is rapid, and iteration is key:You will continuously deliver updates. Our engineering organization operates with minimal bureaucracy, facilitating a flat structure.Our technology stack includes TypeScript/Node, PostgreSQL, Redis, Kubernetes, Mastra, Temporal, Langfuse, ECS, EC2, all deployed on AWS. We practice continuous release cycles.Who You AreYou possess 6+ years of backend engineering experience, ideally in a high-performance environment.

ABOUT RETELL AIAt Retell AI, we are revolutionizing the call center experience using cutting-edge voice AI technology. In just 18 months since our inception, thousands of companies have leveraged our AI voice agents to streamline sales, support, and logistics operations that previously required extensive human teams. Supported by prominent investors such as Y Combinator and Alt Capital, we have grown from $5M to an impressive $36M ARR with a dedicated team of 20.Our ambitious vision for 2026 is to create a state-of-the-art customer experience platform where entire contact centers are driven by AI. Rather than relying on basic automation that necessitates constant human oversight, we are developing intelligent AI “workers” to function as frontline agents, QA analysts, and managers—constantly executing, monitoring, and enhancing customer interactions.As we rapidly expand, we seek passionate innovators eager to solve complex technical challenges, move swiftly, and make a meaningful impact at one of the fastest-growing voice AI startups. Join us in building the future!Ranked among the top 50 AI applications in the a16z list: https://tinyurl.com/5853dt2xRanked #4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025One of the top startups on the Leana I leaderboard: https://leanaileaderboard.com/THE ROLEWe are in search of a Principal/Staff Engineer to spearhead the technical direction of our core platform. This is an individual contributor role designed for someone who excels in uncertainty, acts swiftly, and elevates the standards of those around them.You will engage with various systems, infrastructure, and product surfaces while collaborating closely with engineering teams, product managers, and leadership to scale successful initiatives and innovate for the future.This role is not about merely addressing tickets; you will identify challenges, engineer solutions, and deliver impactful results.KEY RESPONSIBILITIESLead the design and evolution of our core platform and systems architecture.Oversee complex technical projects from inception to production.Make strategic technical decisions that optimize for speed, reliability, and scalability.Collaborate across teams to facilitate knowledge sharing and best practices.

About AnthropicAt Anthropic, we are dedicated to developing AI systems that are not only safe but also interpretable and steerable. Our mission is to ensure that AI serves the best interests of our users and society at large. Our rapidly growing team comprises passionate researchers, engineers, policy experts, and business leaders, all collaborating to create beneficial AI technologies.About the Role:We are seeking skilled software engineers to join our Platform team. This team is responsible for building the essential foundations that enhance product development across Anthropic. We manage the infrastructure and systems that teams rely on for reliable and scalable deployment to both internal users and hundreds of thousands of external clients worldwide.In this role, you will independently define and scope complex, multi-month projects, fostering cross-organizational alignment in ambiguous problem areas. Your architectural decisions will significantly influence the way Anthropic develops and scales its products. You will collaborate closely with research teams to transform cutting-edge capabilities into market-ready solutions, ensuring a lasting impact on our platforms that serve both internal and external engineering teams.Multiple teams are actively hiring, and team assignments will be determined post-interview based on your skills, interests, and the needs of the organization. This flexible approach helps us align talented engineers with backend product initiatives where they can make the most significant impact and experience growth.Your Responsibilities:Platform Acceleration: You will enhance developer productivity for product engineers at Anthropic. This includes architecting and optimizing critical development infrastructure that fuels our AI product development, encompassing development environments, observability, and CI/CD pipelines. You will work closely with product teams to understand their workflows and eliminate friction points, resulting in a profound multiplier effect across the product organization, thus accelerating our mission.Service Infrastructure: You will build and maintain the core infrastructure that supports Anthropic's engineering efforts, ranging from service mesh and observability systems to deployment pipelines and shared libraries. Your contributions will empower product teams to construct and operate reliable services at scale, positioning you as a critical force multiplier within the company.Multicloud: You will develop and sustain the infrastructure that allows Anthropic to function seamlessly across various cloud providers, focusing on cloud-agnostic solutions that enhance our operational efficiency.

Why Weave ExistsAt Weave, we are on a mission to revolutionize the way therapeutic knowledge is captured, transformed, and communicated throughout the drug development process. Our innovative approach combines human expertise with advanced AI tools to accelerate the delivery of safe and affordable medications to patients.The Weave Platform enhances regulatory workflows at every stage by seamlessly integrating AI technology. Partnering with our clients, Weave is dedicated to creating the ultimate AI workbench for the entire therapeutic lifecycle.The Role & Your MissionWe are seeking a talented Staff Backend Engineer to join our engineering team, reporting directly to the Backend Engineering Manager. This role requires navigating between data, AI, and backend systems to ensure the stability, performance, and reliability of our AI systems. You will be responsible for developing innovative solutions to customer challenges, analyzing outcomes, and deploying these solutions into production. Success in this position hinges on your ability to transition smoothly from conception to experimentation, testing, and production. We prioritize effective problem-solving over trends, favoring straightforward, well-tested solutions that are reliable yet impressive.What You Will OwnUnderstanding customer challenges and creating straightforward solutionsCollaborating with Product and Design teams to rapidly identify solutionsWriting efficient, maintainable code using Django, Python, Postgres, and RedisManaging ongoing technical complexities while delivering value on product initiativesWhat You'll BringExperience in an early-stage, product-focused startup environment (fewer than 50 employees)Over 8 years of experience with Django in a production settingPractical experience using LLMs in productionAbility to interact directly with LLMs without the use of abstraction librariesA humble, hungry, and intelligent approachCapacity to work quickly while delivering high-quality outcomesPragmatic and analytical thinking with efficient decision-making skillsBonus: Experience working on products in regulated domains or with critical data privacy and security requirementsBachelor's degree in Computer Science or a related field preferred

About UsAt Twelve Labs, we are at the forefront of developing innovative multimodal foundation models capable of understanding videos in a human-like manner. Our state-of-the-art models are setting new benchmarks in video-language modeling, allowing for more intuitive interactions and transformative media analysis.With an impressive $107 million in Seed and Series A funding, we have garnered support from leading venture capital firms like NVIDIA’s NVentures, NEA, Radical Ventures, and Index Ventures, as well as esteemed AI pioneers such as Fei-Fei Li, Silvio Savarese, and Alexandr Wang. Our headquarters are in San Francisco, complemented by a strong presence in APAC, particularly in Seoul, highlighting our commitment to global innovation.We embrace the individuality of each team member’s journey. The diversity of our cultural, educational, and experiential backgrounds fuels our drive to challenge the norm. We seek passionate individuals eager to contribute to our mission and make a significant impact as we redefine the landscape of technology. Join us in revolutionizing video comprehension and multimodal AI.Role OverviewAs a Senior Staff Software Engineer, you will take charge of the infrastructure and integration layer that ensures Twelve Labs models are seamlessly accessible on partner platforms. Your responsibilities will encompass everything beyond the models, including packaging, validating, deploying model containers, designing API surfaces for various platforms, routing requests, and maintaining production reliability across diverse cloud environments.You will collaborate closely with our Science, Product, and ML Engineering teams to align model and product roadmaps for successful platform integrations. Your expertise in external model orchestration will be pivotal; you will need to comprehend model component functionalities to make informed integration decisions, although model optimization will not be part of your role. Your contributions will significantly enhance our capacity to reliably deliver new model versions and features to users across all platforms.Willingness to travel up to 10% annually for conferences, off-site meetings, and other business-related events is expected. Participation in on-site interviews and/or in-person onboarding processes may also be required.