Last updated: 2025-11-12
461 Backend Software Engineering jobs in San Francisco.
Letta
Founded by the creators of MemGPT from UC Berkeley’s Sky Computing Lab (the birthplace of Spark and Ray). Backed by Jeff Dean, Clem Delangue, and pioneers acro…
San Francisco
- Skills: Python, backend services, SQL databases, Postgres, AI stack, inference engines, APIs, TypeScript, React, cloud service
- Level: entry
- Type: full_time
Sprig
Sprig is building the AI-native successor to legacy survey tools, like Qualtrics, Medallia, and SurveyMonkey. We believe the future of experience research won’…
San Francisco
- Skills: backend systems, data ingestion, data processing, data storage, event-based targeting, AWS, Terraform, Node.js, Golang, scalability
- Level: senior
- Type: full_time
Machinify
Machinify is the leading provider of AI-powered software products that transform healthcare claims and payment operations.
Palo Alto
- Skills: AI platform, distributed systems, microservices architecture, PostgreSQL, Java, Scala, Spring, Kubernetes, AWS, CI/CD
- Level: senior
- Type: full_time
Together AI
Together AI is a research-driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes…
San Francisco
- Skills: APIs, developer experience, TypeScript, Python, LLMs, Kubernetes, distributed systems, high-performance code, open-source, AI infrastructure
- Level: mid
- Type: full_time
Palantir
Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…
Palo Alto
- Skills: backend, frontend, infrastructure, microservices, TypeScript, Java, Go, Cassandra, Elasticsearch, Spark
- Level: entry
- Type: full_time
Arista Networks
Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. Arista is a well-estab…
Santa Clara
- Skills: CloudVision, distributed systems, SaaS, Go, network monitoring, network protocols, machine learning, data analytics, backend systems, test automation
- Level: senior
- Type: full_time
xAI
xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.
San Francisco
- Skills: Kubernetes, Envoy, NGINX, traffic management, network reliability, cloud computing, service discovery, gRPC, load balancing, high-performance systems
- Level: mid
- Type: full_time
Meta
Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Ap…
Menlo Park
- Skills: infrastructure, API design, programming languages, scalable systems, user interfaces, coding languages, testable code, performance optimization, augmented reality, virtual reality
- Level: mid
- Type: full_time
Crusoe
Crusoe is building the World’s Favorite AI-first Cloud infrastructure company. We’re pioneering vertically integrated, purpose-built AI infrastructure solution…
San Francisco
- Skills: Software Defined Networking, network infrastructure, Linux Kernel, C programming, C++ programming, Rust programming, Packet Processing, XDP, DPDK, cloud networking
- Level: senior
- Type: full_time
Together AI
Together AI is a research-driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes…
San Francisco
- Skills: Machine Learning, Platform Engineering, Distributed Systems, Serverless Inference, Infrastructure as Code, Kubernetes, Golang, Rust, Python, Terraform
- Level: senior
- Type: full_time
Chalk
Chalk is building the data platform that powers the future of machine learning applications. We tear down complexity, latency, and scale barriers that have tra…
San Francisco
- Skills: automate, infrastructure, Python, Go, Terraform, AWS, GCP, ML, data processing, query optimization
- Level: mid
- Type: full_time
Together AI
Together AI is a research-driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes…
San Francisco
- Skills: backend engineering, distributed systems, API microservices, latency optimization, Kubernetes, GPU programming, multi-threading, generative AI, resource allocation, open source
- Level: senior
- Type: full_time
Palo Alto Networks
At Palo Alto Networks® everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision i…
Santa Clara
- Skills: cloud management, network security, microservices, Kubernetes, graph databases, Golang, C programming, enterprise applications, routing protocols, DevOps
- Level: senior
- Type: full_time
Snowflake
Snowflake is a cloud-based data-warehousing company that offers a data platform for data storage and analytics.
Menlo Park
- Skills: Machine Learning, Python, Tensorflow, Kubernetes, SKLearn, XGBoost, CI/CD, Data Engineering, APIs, Data Scaling
- Level: mid
- Type: full_time
zaimler
zaimler is building the semantic platform that links fragmented enterprise data and extracts meaning with knowledge-distilled models.
San Mateo
- Skills: cloud infrastructure, Kubernetes, Terraform, AWS, Azure, GCP, distributed systems, GPU orchestration, ML workloads, AI systems
- Level: mid
- Type: full_time
Crusoe
Cruose's mission is to accelerate the abundance of energy and intelligence. We’re crafting the engine that powers a world where people can create ambitiously w…
San Francisco
- Skills: cloud storage, distributed systems, high performance computing, filesystem, multi-tenant architecture, Linux filesystems, storage optimization, networking technologies, monitoring tools, object storage
- Level: senior
- Type: full_time
SpaceX
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Spa…
Sunnyvale
- Skills: .NET Core, Kubernetes, React, Angular, Typescript, HTML, CSS, OAuth 2.0, Docker, PostgreSQL
- Level: senior
- Type: full_time
Palo Alto Networks
At Palo Alto Networks® everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision i…
Santa Clara
- Skills: backend development, cloud security, Go, Python, microservices, distributed systems, API design, security best practices, containerization, cloud platforms
- Level: senior
- Type: full_time
Crusoe
Crusoe's mission is to accelerate the abundance of energy and intelligence. We’re crafting the engine that powers a world where people can create ambitiously w…
San Francisco
- Skills: cloud storage, distributed systems, AI, ML, performance tuning, Linux, high performance, multi-tenant, prototyping, filesystem
- Level: senior
- Type: full_time
Twitch
Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more.
San Francisco
- Skills: backend development, distributed systems, traffic management, CDN, AWS, video distribution, technical leadership, Golang, media protocols, networking
- Level: senior
- Type: full_time