{"schemaVersion":"jobsearcher.job.v1","id":"d80a281d6eee849a627a0413","url":"https://jobsearcher.com/jobs/d80a281d6eee849a627a0413","canonicalUrl":"https://jobsearcher.com/jobs/d80a281d6eee849a627a0413","title":"Software Engineer, Full Stack (Agentic AI)","description":"About Sift\nSift is the data infrastructure platform for hardware engineering teams. Sift turns high-frequency telemetry into engineering insights for mission-critical systems. Teams use Sift to build and operate rockets, satellites, autonomous vehicles, energy systems, defense platforms, and more.\nFounded by former SpaceX engineers who built the tools behind Dragon and Starlink, Sift is building the data infrastructure to herald the AI era for physical systems.\n\nAbout the Role\nHardware programs generate far more telemetry than any team can review by hand. Sift Agents is our answer: AI agents that work alongside hardware engineers, investigating anomalies, reviewing test and flight data, and answering in minutes questions that used to take a day of scripting.\nThis role comes with real product ownership and autonomy. You will talk directly to customers to understand how they review their machines, decide what to build, and own it from first MVP through every iteration after it ships. The surface area is wide: one day you might be polishing the frontend micro-interactions that make the chat experience feel great, the next you might be writing the Kubernetes scaling logic that orchestrates agent workloads. We’re heavy users of frontier agentic products ourselves and have strong opinions about what makes them great. Sift Agents is where we put those opinions to work.\nThis is a product engineering role, not a research role. Most of the work is the hard part of making agents dependable: tool design, context management, code execution environments, evaluation, and observability.\n\nIn This Role, You'll:\nTalk directly to customers and partner with product to turn real review workflows into agent capabilities: generating dashboards, writing analysis scripts, and surfacing insights buried in their telemetry\nDesign, ship, and operate agentic systems that reason over large-scale time-series data and hardware domain context\nBuild everything around the model that makes agents dependable: tool interfaces, sandboxed execution for agent-generated code, context and memory management, custom compaction algorithms, opinionated skills, and guardrails\nDevelop and maintain Sift’s MCP server, the tool surface that lets both our agents and our customers’ AI tools query telemetry directly\nWork across the whole stack\nBuild the frontend surfaces where Sift Agents live, and make them feel great\nDesign and implement the APIs that power our agentic capabilities\nRun agents reliably at scale, both in the cloud and on-prem\nBuild evaluation suites that measure whether agents actually help engineers, and instrument quality, latency, cost, and failure modes in production\nIntegrate and assess frontier models across providers\nThe Skillset You'll Bring:\nHave 3+ years of professional software engineering experience\nGet excited about owning a product area: talking to customers, deciding what to build, and shipping it\nHave built frontend web applications with technologies like React, NextJS, or similar\nHave built APIs (REST, gRPC, etc.) or backend services with technologies like Go, Python, Rust, or similar\nAre curious about new AI products: you try new agents, models, and features as they ship, and have opinions about what makes them good\nIf this role excites you, apply even if you don’t check every box.\n\nBonus Points:\nShipped products to users at scale: large data volumes, significant active user counts, or deep technical complexity\nShipped LLM-powered features\nBuilt agentic systems: multi-step tool use, planning loops, context management, and evals\nDesigned tool ecosystems for agents, including MCP\nWorked with sandboxed or isolated execution of generated code\nOperated services in production (Kubernetes, observability, incident response)\nA personal ecosystem of AI dev tooling: custom agents, skills, scripts, or workflows built to ship faster\nA background in time-series data, scientific computing, or hardware test and telemetry\nBuilt internal agentic tooling that accelerates an engineering org\n\nEngineering At SIFT:\nYou'll have the opportunity to help evolve and scale our platform because we're still in the early stages of building the product. Relevant technologies include:\nWeb frontend & backend: ECharts, Go, gRPC, PostgreSQL, Protobuf, Radix, React, Redux, and TypeScript\nData: Arrow, DataFusion, Flink, Parquet, and Rust\nInfrastructure: Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, and Terragrunt\n\nLocation:\nSift’s headquarters is in Marina Del Rey, CA (Next to LAX). We collaborate in person twice a week—on Mondays and Thursdays—and come together for a full week every two months. We are open to relocating candidates to LA or working from our San Francisco office for the right candidate.\nSalary range: $160,000 - $200,000 per year. Plus equity and benefits.\n\nEligibility:\nU.S. Person Required: Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee in compliance with ITAR (International Traffic in Arms Regulations) / EAR (Export Administration Regulations) regulations.\nCompensation Range: $160K - $200K","company":"Sift Stack","rawCompany":"sift stack","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-08-05T00:14:16.101Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1299.00","title":"Computer Occupations, All Other","slug":"computer-occupations-all-other"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer, Full Stack (Agentic AI)","description":"About Sift\nSift is the data infrastructure platform for hardware engineering teams. Sift turns high-frequency telemetry into engineering insights for mission-critical systems. Teams use Sift to build and operate rockets, satellites, autonomous vehicles, energy systems, defense platforms, and more.\nFounded by former SpaceX engineers who built the tools behind Dragon and Starlink, Sift is building the data infrastructure to herald the AI era for physical systems.\n\nAbout the Role\nHardware programs generate far more telemetry than any team can review by hand. Sift Agents is our answer: AI agents that work alongside hardware engineers, investigating anomalies, reviewing test and flight data, and answering in minutes questions that used to take a day of scripting.\nThis role comes with real product ownership and autonomy. You will talk directly to customers to understand how they review their machines, decide what to build, and own it from first MVP through every iteration after it ships. The surface area is wide: one day you might be polishing the frontend micro-interactions that make the chat experience feel great, the next you might be writing the Kubernetes scaling logic that orchestrates agent workloads. We’re heavy users of frontier agentic products ourselves and have strong opinions about what makes them great. Sift Agents is where we put those opinions to work.\nThis is a product engineering role, not a research role. Most of the work is the hard part of making agents dependable: tool design, context management, code execution environments, evaluation, and observability.\n\nIn This Role, You'll:\nTalk directly to customers and partner with product to turn real review workflows into agent capabilities: generating dashboards, writing analysis scripts, and surfacing insights buried in their telemetry\nDesign, ship, and operate agentic systems that reason over large-scale time-series data and hardware domain context\nBuild everything around the model that makes agents dependable: tool interfaces, sandboxed execution for agent-generated code, context and memory management, custom compaction algorithms, opinionated skills, and guardrails\nDevelop and maintain Sift’s MCP server, the tool surface that lets both our agents and our customers’ AI tools query telemetry directly\nWork across the whole stack\nBuild the frontend surfaces where Sift Agents live, and make them feel great\nDesign and implement the APIs that power our agentic capabilities\nRun agents reliably at scale, both in the cloud and on-prem\nBuild evaluation suites that measure whether agents actually help engineers, and instrument quality, latency, cost, and failure modes in production\nIntegrate and assess frontier models across providers\nThe Skillset You'll Bring:\nHave 3+ years of professional software engineering experience\nGet excited about owning a product area: talking to customers, deciding what to build, and shipping it\nHave built frontend web applications with technologies like React, NextJS, or similar\nHave built APIs (REST, gRPC, etc.) or backend services with technologies like Go, Python, Rust, or similar\nAre curious about new AI products: you try new agents, models, and features as they ship, and have opinions about what makes them good\nIf this role excites you, apply even if you don’t check every box.\n\nBonus Points:\nShipped products to users at scale: large data volumes, significant active user counts, or deep technical complexity\nShipped LLM-powered features\nBuilt agentic systems: multi-step tool use, planning loops, context management, and evals\nDesigned tool ecosystems for agents, including MCP\nWorked with sandboxed or isolated execution of generated code\nOperated services in production (Kubernetes, observability, incident response)\nA personal ecosystem of AI dev tooling: custom agents, skills, scripts, or workflows built to ship faster\nA background in time-series data, scientific computing, or hardware test and telemetry\nBuilt internal agentic tooling that accelerates an engineering org\n\nEngineering At SIFT:\nYou'll have the opportunity to help evolve and scale our platform because we're still in the early stages of building the product. Relevant technologies include:\nWeb frontend & backend: ECharts, Go, gRPC, PostgreSQL, Protobuf, Radix, React, Redux, and TypeScript\nData: Arrow, DataFusion, Flink, Parquet, and Rust\nInfrastructure: Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, and Terragrunt\n\nLocation:\nSift’s headquarters is in Marina Del Rey, CA (Next to LAX). We collaborate in person twice a week—on Mondays and Thursdays—and come together for a full week every two months. We are open to relocating candidates to LA or working from our San Francisco office for the right candidate.\nSalary range: $160,000 - $200,000 per year. Plus equity and benefits.\n\nEligibility:\nU.S. Person Required: Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee in compliance with ITAR (International Traffic in Arms Regulations) / EAR (Export Administration Regulations) regulations.\nCompensation Range: $160K - $200K","datePosted":"2026-08-05T00:14:16.101Z","dateModified":"2026-08-05T00:14:16.101Z","hiringOrganization":{"@type":"Organization","name":"Sift Stack","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"d80a281d6eee849a627a0413"},"url":"https://jobsearcher.com/jobs/d80a281d6eee849a627a0413"}}