Backend engineer jobs in California

A dynamic tech company in California is seeking a highly skilled Backend and Smart Contract Engineer. The role involves designing and developing core APIs, deploying smart contracts, and collaborating with a driven team. The ideal candidate has over 3 years of backend experience... 

A global commerce company in Los Angeles seeks a Backend Software Engineer to design and develop backend services with a heavy focus on Kubernetes. The role emphasizes Infrastructure as Code and requires proficiency in Node.js and TypeScript. Ideal candidates will have... 

A leading AI research company in San Francisco is seeking a Software Engineer focused on developing secure backend systems that prioritize customer data protection. The position requires a commitment to integrating privacy into product development, with responsibilities... 

A semiconductor startup in San Francisco seeks a backend engineer to develop core systems for their fab product. The ideal candidate will have strong experience with backend systems such as Go or Rust and a deep understanding of systems fundamentals. Responsibilities include... 

A semiconductor startup in San Francisco is looking for a Backend Engineer to build core systems for their advanced manufacturing processes. This position involves developing backend APIs, and data models, and integrating with hardware components. The ideal candidate should... 

A financial technology company based in San Francisco is seeking a Backend Software Engineer for its Subscription Cancellation team. The ideal candidate will have expertise in Kotlin or Java, focusing on designing and maintaining scalable microservices. Key responsibilities... 

A technology company is seeking a Backend Developer to design, build, and maintain server-side logic for applications. Responsibilities include developing scalable systems, implementing security best practices, and delivering reliable APIs. Ideal candidates will have experience... 

A technology solutions company in San Francisco is seeking a skilled Backend Developer to design, build, and maintain server-side applications. This pivotal role requires expertise in various back-end languages and frameworks, along with a strong foundation in databases... 

A technology company is seeking a skilled Backend Developer to create and maintain server-side applications in San Francisco. The role involves designing robust APIs, ensuring security, and optimizing performance of back-end services. Applicants should have a relevant degree... 

A dynamic tech company is seeking a Backend Engineer to pioneer their Forward Deployed Engineering function. This role involves building both integrations with Fortune 500 systems and core product development. The successful candidate will manage end-to-end technical implementations... 

A technology solutions firm in El Segundo, CA, is looking for a Software Engineer with backend-leaning, full-stack responsibilities. The ideal candidate must have an active Top Secret clearance and strong backend skills, particularly in Python, with experience in Go and... 

 ...with most of the team spread across the US, with presence in NYC and SF. About the Role We are looking for a top performing backend engineer that loves coding with Rust experience to build performant message delivery at scale. You will get to solve interesting problems... 

Title: Backend Engineer Duration: 5+ months Start Date: ASAP Location: Remote W2/C2C: W2 Only Job Description: DUTIES: Build multi layered permission role integrations with consensus and policies Build auto remediation and exception management engine supporting... 

About Us: Indent is building the platform that every software engineer begins and ends their day in. Our customers are large engineering...  ...the same problem. About You: You will be working on our backend built with Python/FastAPI (with lots of asyncio), Postgres, and... 

A technology company based in San Francisco is seeking a skilled Backend Developer to design, build, and maintain scalable server-side logic. The successful candidate will be responsible for optimizing performance and ensuring robust API integrations. To qualify, candidates... 

 ...meaningful piece of the company. High talent density: Be a part of a great founding team in SF. Shivaal Roy (CTO) was a founding engineer at Glean ($100M+ ARR today) and managed the Assistant and Search teams, where he solved similar problems. Danny Goldman (CEO) was... 

 ...these things. Responsibilities Design and build scalable, high-performance infrastructure. Design architectures that allow both engineers and language models to quickly create, test, and deploy application code. Create reliable monitoring, logging, and alerting systems... 

A technology company is seeking a Backend Developer to design and maintain server-side logic for applications. You will ensure high performance and security of back-end services, working closely with front-end teams. Qualifications include a Bachelor’s degree in Computer... 

A tech company is seeking a Backend Developer to design and maintain server-side logic for applications. This role requires a Bachelor’s in Computer Science and proven experience with back-end development. Candidates should be proficient in languages like Node.js and Python... 

A technology company in San Francisco is looking for a Backend Developer to design and maintain server-side logic for applications. The role focuses on optimizing performance, implementing security practices, and developing reliable APIs. Ideal candidates have a Computer... 

A technology company is seeking a Backend Developer to design and maintain back-end services and APIs. The ideal candidate will ensure performance and security while collaborating with front-end teams. Key requirements include a Bachelor's degree in Computer Science and... 

A technology company is seeking a Backend Developer responsible for designing, building, and maintaining server-side logic to ensure high performance and scalability of applications. The role requires collaboration with front-end developers and involves managing databases... 

APPIT Software Solutions is hiring a Go Backend Engineer in San Francisco, USA . Design and build high-performance backend systems in Go for distributed enterprise platforms at APPIT Software in San Francisco. Responsibilities Design and implement high-performance microservices... 

About the role You'll join Clarify as a Backend Engineer, building the foundational systems that power our AI-native CRM. You'll work directly with founders to architect critical infrastructure—from data pipelines and integration frameworks to developer tooling and system... 

 ...researchers, international olympiad medalists, and former founders and we’re fully in-person in our SF office. About The Role As a Backend Engineer at Phonic, you'll build the critical systems that power real-time voice AI at scale. You'll craft highly reliable, low-latency... 

 ...and workflows to help people accomplish more. The team includes engineers and researchers from leading technology companies and research...  ...Python, TypeScript, and modern infrastructure Design and scale backend systems, APIs, and data models that power intelligent agents Work... 

About Krea At Krea, we are building next-generation AI creative tools. We are dedicated to making AI intuitive and controllable for creatives. Our mission is to build tools that empower human creativity, not replace it. We believe AI is a new medium that allows us to ...

 ...to our 2+ year lead and regulatory advantages), we are setting out to become a $100B+ company. We're seeking a talented Backend Software Engineer to join our innovative team and play a crucial role in developing our AI‑driven healthcare platform. As a key member of our... 

 ...configuration storage and reliability, secret management, and engines that enable these capabilities. This will allow you to build a...  ...product line. Required Experience 5+ years of experience as a backend or full-stack engineer Strong proficiency in a subset of modern... 

The Software Engineering team is responsible for designing and building the scalable, performant, and secure backend systems that power our products—from early prototypes to large-scale deployments. We collaborate closely with product, hardware, and full‑stack teams to...