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878 backend software engineer jobs at 433 companies in Fairfield, CA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Backend Software Engineer
San Francisco, California, United States
$125k-$150k/yr OnsiteFull Time
Lumafield
Lumafield: Accessible industrial CT scanners and cloud-based analysis software
2+ YOEBachelor's degree in Engineering or related field; 2+ years Python backend experience with web frameworks; experience with large dataset processing; strong software engineering fundamentals; team collaboration; Linux, Docker, production deployments.
Python, Django, Django Rest Framework, Celery, AWS (EKS, S3, CloudFront), Docker, Kubernetes, Linux
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1w
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Backend Software Engineer
San Francisco, California, United States
$100k-$130k/yr HybridFull Time
Ketch
Ketch: Data permissioning platform for automated privacy and compliance.
1+ YOE1+ year software engineering experience; strong backend development in Golang (or Java/Python/Scala); experience with cloud-native production systems, distributed systems, CI/CD, and databases; strong communication and collaboration skills.
Golang, Java, Python, Scala, AWS, GCP, Azure, Github Actions, Redis, Cassandra, DynamoDB, ScyllaDB, Postgres, ElasticSearch, git, GitHub, Kubernetes
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2mo
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Software Engineer, Backend
San Francisco, California, United States
$140k-$185k/yr HybridFull Time
Sleeper: Mobile platform for fantasy sports leagues and fan communities.
3+ YOE3+ years backend software engineering; distributed systems; proficient in Go, Python, Node.js, or Java; SQL/NoSQL databases; REST/GraphQL; AWS/GCP; Docker; Kubernetes; strong collaboration.
Go, Python, Node.js, Java, SQL, NoSQL, Kafka, RabbitMQ, Pub/Sub, REST, GraphQL, AWS, GCP, Docker, Kubernetes
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1mo
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Senior Software Engineer, Backend
San Francisco, California, United States
OnsiteFull Time
Kiddom
Kiddom: Provides a digital curriculum and instructional platform for schools.
6+ YOEBS or MS in Computer Science; 6+ years software engineering; experience with backend systems, databases, cloud, containers, and distributed architectures.
SQL, NoSQL, PostgreSQL, MySQL, MongoDB, Redis, AWS, GCP, Azure, Docker, Kubernetes, Golang, Typescript, AWS Lambda, Terraform, Microservices, Distributed systems
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1mo
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Backend Software Engineer
San Francisco, California, United States
$167k-$231k/yr HybridFull Time
Artos
Artos: AI-powered document authoring platform for life sciences R&D.
3+ YOE3+ years software development experience (AI/ML focus), BS/MS in CS/Engineering or equivalent, experience with GenAI, Python APIs (FastAPI/Django), containerized cloud deployments (Docker, AWS), CI/CD, and secure coding.
Python, FastAPI, Django, AWS, Docker, Terraform, Pulumi, React
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1d
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Backend Software Engineer
San Francisco, California, United States
$130k-$220k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
Experience building scalable backend services and cloud infrastructure, knowledge of Python, Azure, Terraform, Kubernetes, CI/CD; eligible U.S. Person able to obtain security clearance.
Python, Azure, Terraform, Kubernetes, CI/CD, TypeScript, React
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3mo
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Staff Backend Software Engineer
San Francisco or Montreal
RemoteFull Time
Saris AI
Saris AI: Automates banking back-office workflows using autonomous AI agents.
Backend software engineer with Python (Django/Flask/FastAPI), TypeScript (React), Docker, AWS/GCP; design scalable distributed systems.
Python, Django, Flask, FastAPI, TypeScript, React, Docker, AWS, GCP, PostgreSQL, Redis, REST, GraphQL
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2mo
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Backend Engineer
San Francisco, California, United States
$190k-$230k/yr OnsiteFull Time
Lapel
Lapel: Unifying customer data to power personalized service at scale.
3+ YOE3+ years backend or software engineering; API design; backend architecture; Node.js/Python/Go; PostgreSQL/MySQL; scalable systems; customer-focused.
Node.js, Python, Go, PostgreSQL, MySQL, TypeScript, Temporal, Pulsar
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3w
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Senior Backend Software Engineer
New York City or San Francisco
$100k-$200k/yr OnsiteFull Time
Alpaca Health
Alpaca Health: Enabling clinicians to launch and scale independent autism care clinics.
Senior backend engineer with strong system-design and ownership; builds integrations, billing/payments, data pipelines, and AI/LLM infrastructure. Experience in operationally complex domains (healthcare, fintech, insurance) or early-stage startups preferred.
Candid, Silna, Availity, HubSpot, LLM
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3mo
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Software Engineer - Backend
Seattle or San Francisco
$140k-$250k/yr HybridFull Time
MotherDuck
MotherDuck: Provides cloud-hosted serverless data warehousing built on DuckDB.
Backend engineering experience with distributed systems; strong performance and reliability focus; API design and observability know-how; collaborative, product-focused mindset.
Go, C++
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1mo
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Software Engineer, Backend
San Francisco, California, United States
$180k-$310k/yr HybridFull Time
Gamma
Gamma: AI platform that generates presentations, documents, and websites from text.
3+ YOE3+ years building production backend systems; strong TypeScript/Node.js; distributed systems, databases, APIs; scalable systems; websockets/streaming nice to have.
TypeScript, Node.js, PostgreSQL, Redis, APIs
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2mo
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Backend Software Engineer, Applied Foundations
San Francisco, California, United States
$185k-$385k/yr OnsiteFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
Experience with distributed systems, APIs, and backend languages; production backend services and data pipelines.
Go, Python, Rust, C++
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1mo
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Software Engineer (Backend), Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Mexico City or Miami or New York City or Ottawa or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Toronto or Vancouver or Washington, D.C.
$104k-$187k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years as a software engineer; backend/data pipelines; comfortable with messy data; proficient in Ruby, Python, or Go; AWS experience; SQL; collaborative and communicative.
Ruby, Python, Go, AWS, S3, SQS, SNS, SQL
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3mo
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Staff+ Software Engineer, Backend
San Francisco or New York City or Seattle
$405k-$485k/yr OnsiteFull Time
Anthropic
Anthropic: Developing safe and reliable artificial intelligence systems.
8+ years backend or product engineering; lead multi-month projects; distributed systems; API design; cloud infra; strong cross-team communication.
API design, Distributed systems, Cloud infrastructure, Backend programming
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1mo
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Software Engineer - Backend (Varying Levels)
San Francisco or Denver
$160k-$215k/yr HybridFull Time
Windfall
Windfall: Provides consumer financial data and AI-driven go-to-market insights.
5+ YOE5+ years of professional backend software engineering experience; expert OO programming; experience with transactional databases and distributed systems; strong communication and problem-solving skills; able to balance quality, complexity, and delivery speed.
GCP, Java, Kotlin, Spring Boot, Google PubSub, Postgres, BigQuery, Kubernetes, Docker
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2mo
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Senior Software Engineer Backend
San Francisco, California, United States
$130k-$190k/yr RemoteFull Time
WeaveGrid
WeaveGrid: Software platform for electric vehicle grid integration and management.
5+ YOEBackend software engineer with 5+ years experience, strong Python/Go, cloud microservices, and ownership of production systems.
Python, Go, Docker, Kubernetes, AWS, GitHub, Jira/Confluence, CircleCI
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2mo
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Backend Staff Software Engineer
Foster City, California, United States
$146k-$234k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
5+ YOE5+ years software engineering; web or mobile apps; leadership experience; strong Java/C/C++; collaboration across teams.
Java, C++, C#, HTML, Angular, React, Kubernetes, Docker
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3mo
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Backend Engineer
San Francisco, California, United States
$190k-$220k/yr OnsiteFull Time
Wordware
Wordware: Full-stack operating system for building AI applications.
Senior backend-leaning full-stack engineer; onsite in San Francisco; full-time; $190k-$220k; US-based or relocation.
TypeScript, React, Next.js, Node.js, PostgreSQL, Cloudflare, AWS, AI model integrations
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1mo
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Senior Software Engineer, Backend - RQL
Seattle or San Francisco
$168k-$280k/yr OnsiteFull Time
Rippling
Rippling: Unified platform managing workforce HR, IT, and finance operations
6+ YOE6+ years backend engineering experience; experience with distributed systems, distributed processing engines, big data technologies, mentoring developers, and building data platforms.
Python, MongoDB, CDC, Kafka, Aurora, Trino, Presto, Pinot, Iceberg, Flink, Rippling Query Language (RQL), Microsoft 365
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2mo
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Sr Backend Software Engineer, Recording
San Francisco, California, United States
RemoteFull Time
Scribe
Scribe: Automatically documents digital workflows into step-by-step process guides.
8+ YOE8+ years backend experience with Python, Typescript, or Go; distributed systems; messaging queues; data ingestion; microservices; AWS; performance optimization.
Python, Typescript, Go, Celery, SQS, RabbitMQ, Kafka, Django, AWS
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