Staff Backend Engineer at Siftstack | San Francisco

At Siftstack, we are revolutionizing the development, testing, and operation of modern machines. Our innovative platform empowers engineers with real-time observability over high-frequency telemetry, effectively eliminating bottlenecks and facilitating faster, more dependable development.Founded by a team of experts from SpaceX, Google, and Palantir, Siftstack was inspired by our experience with pioneering projects like Dragon, Falcon, Starlink, and Starship. Our mission-critical infrastructure is designed for precision and scalability, meeting the highest demands of reliability in engineering.As an early-stage engineer at Siftstack, you will not only write code, but you will also play a pivotal role in defining our architecture, shaping our product, and cultivating a culture focused on addressing real engineering challenges. If you thrive on tackling complex technical problems and want to build foundational systems that support intricate machines, we'd love to hear from you.

About the Role Siftstack is seeking a Software Engineering Manager (Data) in San Francisco. This leader will guide a skilled team of engineers focused on building data solutions. The role involves setting engineering strategy, overseeing software quality, and supporting a culture that values innovation and high standards. What You Will Do Lead and mentor a team of data engineers Shape and drive the engineering approach for data projects Oversee delivery of reliable, high-quality software Encourage new ideas and continuous improvement within the team Location This position is based in San Francisco, CA.

About Siftstack Siftstack builds core infrastructure for engineering teams designing, testing, and operating complex machines. The platform delivers real-time observability for high-frequency telemetry, helping engineers debug issues quickly, spot failures early, and maintain reliable operations where precision matters most. The founding team brings experience from SpaceX, Google, and Palantir, with backgrounds in projects like Dragon, Falcon, Starlink, and Starship. Siftstack’s technology supports organizations in aerospace, defense, robotics, energy, and industrial sectors, fields where speed and dependability are essential. Role Overview: Enterprise Account Executive The Enterprise Account Executive leads technical sales cycles with engineering teams working on advanced systems. This role partners with Solutions Engineering, Product Management, and leadership to find new opportunities, guide technical evaluations, and close deals that make a real impact for engineering customers. Siftstack looks for someone who thrives on selling technical products, enjoys working directly with engineers, and wants to shape the go-to-market approach of a growing company. What You Will Do Drive New Customer Acquisition Find and develop new business with engineering-driven organizations across the United States. Reach out to target accounts and build relationships with both technical and executive contacts. Create account strategies and manage a pipeline of qualified opportunities. Lead Technical Sales Cycles Run discovery sessions to understand system architecture, telemetry needs, and engineering pain points. Work with Solutions Engineering and Product teams to support technical assessments and pilot projects. Define success criteria and guide evaluations toward clear technical and business goals. Close High-Value Deals Manage deals from first contact through contract signing. Align technical validation with commercial buying processes. Handle procurement steps to ensure deals close successfully. Location This position is based in San Francisco, CA.

About SiftstackSiftstack is an innovative data visualization and infrastructure platform that empowers the brightest engineers to construct the hardware of tomorrow. We simplify complex telemetry data, enabling our clients—engineers at the forefront of aerospace, robotics, transportation, and defense—to push the limits of what’s possible. With Siftstack, they gain the insights they need to accelerate their groundbreaking projects.In the realm of engineering, merely having access to vast amounts of data doesn’t guarantee accelerated progress. It’s the right tools that transform raw data into actionable insights, and that’s precisely what we provide.This role presents a unique opportunity to contribute significantly to advancements in science and technology. If you’re ready to embrace the challenge, we want to hear from you.About the RoleWe are seeking a highly skilled Product Designer to join our Design team at Siftstack. You will take ownership of essential user experiences on our platform, conducting user research, designing interactions, and creating interactive prototypes that engineers will depend on daily to monitor complex telemetry from advanced hardware systems.This is a hands-on, detail-oriented role where you will collaborate closely with Product Management and Engineering throughout the entire product development process—from initial problem identification to the final product launch—using our design system as your foundation while also enhancing it. We are looking for someone who thinks systemically yet is attentive to the finer details and is genuinely enthusiastic about the possibilities that hybrid AI design workflows offer. A willingness to engage directly with users in their environments, such as a spacecraft cleanroom, is essential. If this aligns with your passion, let’s connect!Key ResponsibilitiesConduct user research, including on-site visits, to deeply understand the needs and workflows of advanced hardware engineers.Design core interactions and workflows across Siftstack’s platform.Collaborate closely with Product Management and Engineering throughout the product lifecycle, from defining problems to delivering features.Utilize and enhance our Figma-based design system to create new components and patterns that address real customer challenges and improve engineering efficiency.Adopt hybrid AI design workflows to rapidly explore ideas, iterate swiftly, and produce high-quality deliverables in a fast-paced startup environment.

At Sift, we are revolutionizing the way sophisticated machines are constructed, tested, and managed. Our innovative platform provides engineers with instantaneous visibility over high-frequency telemetry, effectively removing bottlenecks and fostering swifter, more dependable development.Originating from our extensive experience at SpaceX on projects such as Dragon, Falcon, Starlink, and Starship, Sift was created to address the challenges of scaling telemetry, debugging flight systems, and ensuring mission reliability, which necessitated the development of groundbreaking infrastructure. Established by a talented team from SpaceX, Google, and Palantir, Sift is tailored for mission-critical systems where accuracy and scalability are imperative.As a key early engineer concentrating on our data infrastructure, your role will extend beyond mere coding—you will shape foundational architecture and assist in scaling a real-time telemetry platform from its inception. You will engage with intricate backend systems designed to process, store, and deliver millions of high-frequency data points each second, facilitating rapid iteration cycles for some of the world's leading engineering teams.

Join Giga's Innovative TeamAt Giga, we're on the cutting edge of technology, having successfully raised $61 million in Series A funding. Our pioneering real-time AI agents are designed to understand emotions, resolve customer issues instantaneously, and scale across some of the largest enterprises globally. We are proud to serve notable clients, including DoorDash.As we stand at a crucial turning point in our journey, we invite talented engineers to join us in achieving our vision of becoming the leading AI platform for enterprise automation, powered by our voice superintelligence.The work we do impacts millions daily, providing our engineers with the autonomy to shape their projects and make a tangible difference. With visionary founders, a successful business model, and a clear roadmap for future growth, this is an extraordinary opportunity to join a generational company.Learn more about us through these articles:Voice AI startup Giga raises $61M Series ADoorDash and Giga PartnershipYour Role as a Staff Backend EngineerWe are seeking a Staff Backend Engineer to be a key player in defining the technical strategy of our backend systems. You will be responsible for leading complex projects, making pivotal architectural decisions, and elevating engineering standards across our team.This position is tailored for those who want to be builders at heart. You will write code, take ownership of systems, and deliver results while also looking ahead to determine future development directions for our team.Key ResponsibilitiesYou will spearhead technical initiatives across the organization, including:System architecture: Innovating our agent infrastructure to seamlessly scale while balancing speed, reliability, and complexity.Challenging technical problems: Leading high-stakes projects where the consequences of failure could significantly impact our business.Technical strategy: Proactively identifying system gaps and proposing solutions to enhance our platform.

About DEUNA DEUNA is an innovative startup transforming the landscape of global commerce with our groundbreaking AI-driven orchestration and payments platform, ATHIA. Our solution empowers large enterprises to enhance approval rates, minimize costs, and discover new revenue streams. Developed by a team recognized as the fastest-growing Commerce OS in Latin America, ATHIA integrates payment intelligence, checkout optimization, and data orchestration into a unified solution.With robust integrations across over 300 payment service providers and alternative payment methods, and with more than 20% of Mexico’s digital economy processed through our platform, we simplify global payment processes via a single integration and centralized reconciliation.As we expand into the U.S. market to fulfill the pressing requirements of large retailers, marketplaces, airlines, and quick-service restaurants (QSRs), we invite you to join us in shaping the future of payments! Role OverviewWe are on the lookout for a Backend Staff Engineer who will serve as a technical expert and architectural leader for our backend systems. This position focuses on tackling complex engineering challenges, scaling distributed systems, and establishing backend engineering standards across the organization.This is not a management role; instead, you will act as a technical authority, collaborating with Engineering Managers while taking charge of technical depth and backend architecture decisions. You will thrive in a dynamic startup environment where backend systems are critical to product capabilities.Key ResponsibilitiesBackend Architecture & System Design- Create and enhance scalable, secure, and resilient backend systems.- Architect high-availability APIs and distributed services.- Establish best practices for reliability, observability, and performance.Deep Technical Contribution- Write high-quality, production-ready backend code.- Lead refactoring initiatives and performance enhancements.- Identify system bottlenecks and implement scalable solutions.- Design data models, caching strategies, and asynchronous workflows.Technical Influence- Provide technical guidance across teams.- Facilitate complex design discussions and evaluate trade-offs.- Enhance backend development standards and documentation practices.Scalability & Reliability- Design systems capable of managing high-traffic and transaction-intensive workloads.- Define strategies for load balancing, scaling, monitoring, and failure management.- Optimize system instrumentation and monitoring practices.

About UsScribe is a dynamic company where outstanding talent thrives. With over 94% of the Fortune 500 relying on our platform, we empower teams to accomplish their tasks efficiently while continuously improving their workflows. Our innovative Workflow AI technology streamlines and enhances processes, enabling teams to work smarter and more consistently.Since our inception in 2019, we've experienced rapid growth, amassing over 5 million users across 600,000 businesses. Based in the heart of San Francisco, we have been recognized as a LinkedIn Top Startup and are valued at over $1 billion, supported by premier investors. Join us in transforming the way people approach their work.Our Work CultureWe are passionate builders dedicated to honing our skills. Our team values collaboration and shared success, embracing principles such as:Accelerating impactRaising the barEmpowering our usersClear communication is kindFostering rapid learningOne team, one visionAbout This RoleWe are seeking a talented and seasoned backend engineer to become a Staff Engineer on our Core Engineering team. This pivotal group is responsible for the most critical user experiences at Scribe, encompassing functionalities like viewing and editing Scribes, managing Pages, Embeds, Exports, and supporting essential Integrations. Your contributions will directly enhance how users create, share, and leverage documentation, significantly improving their effectiveness.If you are driven by a passion for addressing real user challenges and approaching problems with both practicality and elegance, this is your chance to work closely with designers, user advocates, and engineers across the technology stack to shape the future of Scribe. As a Staff Engineer, you will play a vital role in system design, elevate our engineering culture, and mentor fellow engineers.Your Responsibilities Will IncludeLeading the development of new features within our Django monolith, focusing on core experiences such as viewing and editing Scribes, Pages, Embeds, Exports, and related Integrations.Enhancing database queries, endpoints, and caching layers to boost performance and scalability in critical user workflows.Collaborating across teams to ensure seamless integration and user experience.

Join Us at ApiphanyAt Apiphany, we are at the forefront of foundational AI technology, driving innovation in physical product development. Our mission is to support global leaders in automotive, aerospace, medtech, and energy sectors by transforming complex, unstructured technical data into actionable insights in real-time. With investment from notable firms like Markforged, Databricks, GM, and Character, we aim to redefine engineering decision-making, simplifying complexity for top-tier manufacturers worldwide.Our cutting-edge models are designed to tackle the intricacies of engineering and manufacturing, incorporating a deep understanding of physics, design specifications, and program constraints. We are a compact yet highly skilled team composed of builders from prestigious institutions including Stanford, Berkeley, MIT, UW, and CMU, alongside industry veterans from GM, Ford, and Genesis Therapeutics. Together, we share a passion for revolutionizing hard-tech and establishing a company that sets the standard in our field.Your RoleIn the role of Senior / Staff Backend Engineer at Apiphany, you will take charge of designing, building, and scaling the essential systems that drive our intelligence platform. You will be responsible for developing low-latency backend services and APIs capable of processing extensive engineering data streams, maintaining security and compliance, and architecting systems for optimal performance and availability. Additionally, you will influence long-term architectural decisions, guide your colleagues through mentorship, and establish best practices for scaling backend services to deliver robust and high-performance applications.

Join our dynamic team at Lightfield as a Staff Engineer specializing in Backend Systems. We are looking for a passionate engineer who thrives in a fast-paced environment and is eager to innovate and contribute to the design and implementation of our backend architecture. You will collaborate closely with cross-functional teams to deliver high-quality solutions that enhance our products and services.

P-150 At Databricks, we are dedicated to empowering data teams to tackle some of the world's most challenging problems, ranging from security threat detection to the development of cancer treatments. We achieve this by creating and managing the leading data and AI infrastructure platform, allowing our clients to concentrate on the high-value challenges central to their missions. Founded in 2013 by the original creators of Apache Spark™, Databricks has evolved from a modest office in Berkeley, California, to a global enterprise with over 1000 employees. Our platform is trusted by thousands of organizations, from startups to Fortune 100 companies, establishing us as one of the fastest-growing SaaS firms worldwide. Our engineering teams design and develop highly technical products that meet significant real-world needs. We continually push the limits of data and AI technology while maintaining the resilience, security, and scalability essential for our customers' success on our platform. We operate one of the largest-scale software platforms, comprising millions of virtual machines that generate terabytes of logs and process exabytes of data daily. Given our scale, we frequently encounter cloud hardware, network, and operating system faults, and our software must effectively shield our customers from any disruptions. As a Software Engineer focused on backend development, you will collaborate closely with your team and product management to prioritize, design, implement, test, and operate microservices for the Databricks platform and products. This role includes writing software in Scala/Java, building data pipelines using Apache Spark™ and Apache Kafka, integrating with third-party applications, and interacting with cloud APIs such as AWS, Azure, CloudFormation, and Terraform. Below are examples of teams you can join: Data Science and Machine Learning Infrastructure: Develop services and infrastructure that bridge the gap between machine learning and distributed systems. Our technology supports flagship collaborative workspaces, notebooks, IDE integrations, and project management tools. We also facilitate large-scale machine learning through environment management, distributed training, and lifecycle management via MLflow. Compute Fabric: Construct the resource management infrastructure that supports all big data and machine learning workloads on the Databricks platform in a robust, flexible, secure, and cloud-agnostic manner. This software oversees millions of virtual machines.

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.

About SemgrepSemgrep is at the forefront of code security, empowering developers to innovate seamlessly. Our platform enables teams to identify, flag, and resolve genuine issues before deployment, all while leveraging an adaptive security framework that evolves as developers code. Semgrep integrates security into the development process without hindering productivity, offering developers the autonomy to work efficiently while ensuring security teams maintain oversight, control, and assurance. With advanced AI capabilities that minimize false positives and prioritize actionable vulnerabilities, we have earned the trust of 95% of security reviewers across over 6 million findings. Semgrep is committed to achieving zero false positives, significantly reducing the workload for AppSec teams by enabling them to triage 80% fewer false alerts across both Code and Supply Chain, effectively managing their backlog.Founded in San Francisco and supported by prominent investors such as Menlo Ventures, Felicis Ventures, Lightspeed Venture Partners, Redpoint Ventures, and Sequoia Capital, Semgrep has been recognized by Gartner in the Application Security Testing sector and is trusted by leading organizations including Snowflake, Dropbox, and Figma. Discover more at semgrep.dev.About the RoleAs a Staff Backend Engineer, you will design, build, and maintain robust backend and infrastructure systems, ensuring a fast and reliable experience for our users. You will collaborate closely with fellow engineers to develop the APIs, data models, and services that drive Semgrep’s products at scale. A solid understanding of databases, query optimization, and distributed systems is essential, along with experience in integrating third-party solutions into existing codebases.Our technology stack includes TypeScript and React for the frontend, while the backend is powered by Python, Flask, and SQLAlchemy, all deployed through Kubernetes and hosted on AWS. Prior experience with these technologies is preferred, but a willingness to learn is equally valued!This is a hybrid role, with an expectation of in-office presence 3 or more days a week in our San Francisco, New York, Boston, or Denver offices, depending on your team. Remote work may be considered for exceptional candidates.CompensationThe estimated annual salary range for this position is between $202,000 and $238,000 USD. The actual salary will be based on various factors, including job-related skills, relevant experience, qualifications, location, internal equity, and market data. In addition to the base salary, total compensation may include equity, variable compensation, and benefits. We consider equity a vital part of our overall compensation package.

About Cogent SecurityCogent Security is an innovative Applied AI Lab pioneering the future of AI agents in the realm of cybersecurity. In a world where cyber threats evolve at unprecedented speeds, our 'AI Taskforce' analyzes vast amounts of enterprise data to proactively address vulnerabilities and avert critical breaches.We remain at the forefront of technology by merging cutting-edge research with practical applications. Our dedicated Cogent Research team fuels our mission, ensuring we develop truly effective security workflows powered by AI.Since our inception, Cogent has rapidly grown, collaborating with Fortune 500 companies to safeguard the most intricate production environments globally.Supported by Greylock, our team comprises some of the brightest minds in applied AI, including experts from:Renowned universities such as Stanford, Berkeley, Penn, Duke, Carnegie Mellon, and Waterloo.High-growth unicorn companies like Scale AI, Databricks, Stripe, Tesla, and Coinbase.Leading cybersecurity specialists from Wiz, Abnormal AI, and Zscaler.Prestigious research institutions including DeepMind and SAIL.About the RoleAs we embark on building a suite of backend services and integrations with our design partners, we seek passionate and skilled Backend Engineers at both Senior and Staff levels, eager to thrive in the Applied AI domain.ResponsibilitiesDesign and implement critical backend subsystems and integration platformsComprehend business objectives and customer requirements to engineer backend subsystems that align with our technology strategies.Adapt systems to meet evolving needs of design partners and clients.Incorporate non-functional requirements such as compliance and security into system design.Establish scalable infrastructure foundationsPrepare for future growth in customer base, headcount, and data management by collaborating with your team to enhance infrastructure.

At CreatorIQ, we are the leading operating system for creator-led growth, trusted by over 1,300 brands and agencies globally. Our mission is to humanize business and amplify individual impact through our core values: intentionality, excellence, collaboration, and humanity. Recognized as one of the best companies to work for by BuiltIn LA and NY, we have been listed among the Fastest-Growing Companies in North America on the Deloitte Technology Fast 500™ for four consecutive years. In 2025, we were acknowledged as a leader in the IDC MarketScape: Worldwide Influencer Marketing Platforms for Large Enterprises and praised by The Forrester New Wave™: Influencer Marketing Solutions. With a consistent 5-star rating on Influencer MarketingHub and recognition from G2, we pride ourselves on fostering a flexible work environment that promotes collaboration and innovation.We are on the lookout for passionate and innovative individuals to join our dynamic team. Together, let’s revolutionize the industry!Staff Fullstack Engineer (Backend Focus)In this pivotal role on our Product Innovations team, you will take the lead as a tech expert for AI and ML-driven software initiatives, seamlessly transitioning experimental pilots into production-grade releases. Your responsibilities will span the entire tech stack, where you will design data architectures, develop robust APIs and webhooks, and construct pipelines that empower leading global brands in creator marketing.

Role overview Patreon is seeking a Staff Software Engineer specializing in Backend Platform for its San Francisco office. The position centers on designing and building scalable backend services that support and enhance the experience for creators using Patreon. What you will do Design and implement backend systems that can grow alongside Patreon's expanding user base Partner with engineers, product managers, and other teams to deliver reliable and user-friendly platform features Help guide technical decisions that influence the future direction of Patreon's backend architecture Collaboration This role works closely with cross-functional teams to ensure the platform addresses both technical requirements and user needs.

Join Plaud as a Backend Engineer and be part of an innovative team driving the future of technology. You will design, develop, and maintain scalable backend systems that enhance our product offerings and improve user experiences. This is an exciting opportunity to work with cutting-edge technologies and collaborate with talented professionals in a fast-paced environment.

Complete is dedicated to transforming compensation into a strategic advantage for the world's most impactful organizations. We are modernizing compensation processes by moving away from traditional spreadsheets and embracing innovative solutions for leveling, compensation cycle planning, total rewards statements, and dynamic candidate offers, among other features!Why Choose Complete?We recognize that compensation plays a crucial role in a company's success and represents one of their largest expenditures. Unfortunately, many enterprises lack the know-how to implement a robust compensation strategy, which can lead to significant financial and operational inefficiencies. We believe that organizations with innovative compensation strategies are the ones thriving in today's market.Complete is proudly supported by Accel and Y Combinator. We have the privilege of being advised by industry leaders such as Will Larson (CTO of Carta), Eric Sagar (COO of Plaid), and Mathilde Collin (CEO of Front).About Us We are product-focused builders who prioritize quality, believing software in the 21st century should be intuitive and require minimal training. Our culture is characterized by low ego and rapid execution. We understand that success doesn't come from large teams, but rather from a focused approach. As a tight-knit team of fewer than 10 members, we combine exceptional product and business insights, enabling us to effectively compete and win against larger competitors. This is your opportunity to join us at the ground level!⭐ Our clientele ranges from startups like Linear and Brex to publicly traded companies such as Roblox, and we continually add remarkable brands to our roster. We work collaboratively in our San Francisco office, located near Embarcadero BART, 4-5 days a week. We believe that bringing talented individuals together in person accelerates our success as a startup.What We Are SeekingAt this pivotal moment in our growth, Complete is looking for experienced Senior or Staff Engineers to help us scale towards our ambitious revenue goals. If you thrive in a fast-paced environment and possess a strong sense of ownership, you may be a perfect fit. Our team is passionate about delivering exceptional customer experiences and eager to challenge industry norms. At Complete, you will focus on:Ownership: We value experienced professionals who take initiative and lead projects with confidence.Collaboration: Work closely with cross-functional teams to ideate and implement innovative solutions that drive results.Continuous Improvement: Stay ahead of technological advancements to enhance our product offerings and optimize user experiences.

About AnonAnon is revolutionizing enterprise data workflows by creating a platform that empowers businesses to deploy authenticated AI agents.Our mission is to tackle one of the most pressing issues in enterprise automation: accessing and transforming data that is locked behind authentication barriers. Our innovative platform enables AI agents to securely connect with any web-based system, extracting unstructured data and delivering it through modern APIs.Since our inception in 2023, we have transformed extensive manual processes into automated workflows that complete in mere minutes. We have secured $14 million in funding from esteemed investors such as Union Square Ventures, Forerunner Ventures, Okta Ventures, and Abstract Ventures.Our vision is clear: every business system should be accessible to AI agents. If you are passionate about building the infrastructure that will drive the next wave of AI applications, we invite you to join our dedicated team of 12 in San Francisco.www.anon.com/careers