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2,076 backend developer jobs at 826 companies in California

3mo
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Backend Engineer
San Francisco, California, United States
$190k-$230k/yr OnsiteFull Time
Lapel
Lapel: Private software building customer-operations infrastructure for internet businesses.
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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1w
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Backend Engineer
Denver or Seattle or Washington or San Francisco or Los Angeles or Arvada or San Francisco or Nashville or Denver or Santa Fe or New Orleans or San Diego or Bozeman or New York City
$120k-$180k/yr HybridFull Time
Quindar
Quindar: Automation First. Mission Ready. Mission management software delivering a common operating picture, system-of-systems integration, and resiliency across commercial and government space missions.
3+ YOERequires Python backend development, AWS, GraphQL, Docker, Terraform, APIs, Kubernetes, Git, a computer science bachelor's degree, and 3+ years of experience; U.S. person status and security clearance eligibility required.
Python, AWS, GraphQL, Docker, Terraform, OpenAI, Anthropic, AskSage, Kubernetes, AWS Lambda, Amazon ECS, Amazon EKS, Amazon CloudWatch, Amazon S3, Amazon EFS, Amazon EBS, Amazon EC2, Amazon RDS, Git, GitHub, GitLab, CI/CD
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2mo
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Backend Engineer
San Francisco, California, United States
$135k-$250k/yr HybridFull Time
Fable Security
Fable Security: Private cybersecurity software helping enterprises assess and change employee security behavior with AI.
3+ YOE3+ years developing backend software; experience designing, implementing, and owning production services; familiarity with relational DBs (Django or similar), APIs, ETL/data pipelines, distributed systems, and cloud tooling (AWS, Terraform, EKS).
Kafka, Spark, Airflow, Django, AWS, Terraform, EKS, GenAI
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1w
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Backend Developer
Istanbul or San Francisco
HybridFull Time
PlusMinusOne
PlusMinusOne: Mobile startup studio developing and marketing its own mobile apps for users worldwide.
3+ YOE3+ years building production backend services with Node.js and TypeScript; requires PostgreSQL, Redis, REST APIs, Docker, AWS, and scalable system design experience. Kubernetes and Terraform experience are valued.
Node.js, TypeScript, NestJS, PostgreSQL, Redis, Docker, Kubernetes, Terraform, AWS, EKS, RDS, S3, IAM, Secrets Manager, Prometheus, Grafana, Kafka, Debezium, ClickHouse, BigQuery, ArgoCD, Karpenter, KEDA, LLM APIs, RAG, Python
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3mo
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Backend Engineer
San Mateo, California, United States
OnsiteFull Time
Luminary
Luminary: Physics AI platform helping engineering teams build, verify, and ship physical products.
10+ YOE10+ years building high-performance backend systems; Kubernetes expertise; SaaS focus; cloud infrastructure and security; leadership and mentoring; strong communication.
Kubernetes, Docker, GCP, CI/CD
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1mo
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Backend Engineer
San Francisco, California, United States
$140k-$185k/yr HybridFull Time
Scribe
Scribe: Workflow AI software that helps organizations capture, improve, and scale how work gets done.
3+ YOE3+ years building backend applications, strong Python skills, experience optimizing endpoints and database queries, automated testing, and collaborative engineering practices.
Python, Django, PostgreSQL, Redis, Celery, AmazonMQ, Terraform, AWS
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3mo
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Senior Backend Engineer
San Francisco, California, United States
$175k-$275k/yr OnsiteFull Time
Hedra
Hedra: Generative-media lab providing video, image, and audio creation tools for creators and businesses.
5+ YOE5+ years backend development with Python, FastAPI/Pydantic; Kubernetes/EKS; relational databases; AWS stack; building scalable services.
Python, FastAPI, Pydantic, Kubernetes, EKS, PostgreSQL, Redis, S3, DynamoDB, AWS
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4mo
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Senior Backend Developer
San Francisco, California, United States
$160k-$210k/yr RemoteFull Time
Ellipsis Health
Ellipsis Health: Healthcare AI providing an emotionally intelligent voice care manager for health plans and health systems.
5+ YOE5+ years backend development; strong TypeScript/Node.js; REST/GraphQL; orchestration layers; microservices; cloud platforms; Kubernetes; SQL/NoSQL; secure data handling; CI/CD; production ownership.
TypeScript, Node.js, REST, GraphQL, Kubernetes, AWS, GCP, Azure, PostgreSQL, MongoDB, DynamoDB, CI/CD
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1mo
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GoLang Backend Developer
Mason or Woodland Hills
OnsiteContract
Delan Associates, Inc
Delan Associates, Inc: Professional services and engineering consulting firm.
12+ YOEStrong Go (Golang) backend development with microservices, RESTful APIs, Docker/Kubernetes, SQL/NoSQL, cloud platforms, CI/CD, unit testing, distributed systems, messaging, IaC (preferred), and security best practices.
Go (Golang), Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, DynamoDB, AWS, Azure, GCP, Git, CI/CD, Terraform, Helm, Kafka, RabbitMQ
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1mo
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Backend Engineer
California or United States
HybridFull Time
Arena Intelligence
Arena Intelligence: AI model evaluation platform serving enterprises, AI labs, and independent researchers in real-world workflows.
5+ YOE5+ years backend experience building product-facing APIs, services, and data systems; strong Go proficiency; Postgres/Redis/data-scaling skills; product and ambiguity comfort.
Go, Postgres, Redis, Stripe, Metronome, Orb, OpenAI, Anthropic, Google, vLLM, LiteLLM, LangChain
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1w
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Backend Engineer
Los Angeles or Beverly Hills or New York City
$145k-$180k/yr HybridFull Time
Genius
Genius: US digital music-media platform where artists, contributors, and fans annotate lyrics and explore music knowledge.
4+ YOEAt least 4 years of backend or data engineering experience; proficiency in Ruby on Rails, databases, ELT pipelines, Apache Airflow, APIs, and scalable systems. Computer Science degree preferred, not required.
Ruby on Rails, PostgreSQL, ClickHouse, BigQuery, Apache Airflow
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2mo
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Backend Engineer
Los Angeles, California, United States
$150k-$165k/yr HybridFull Time
SKIMS
SKIMS: Solutions-oriented brand creating the next generation of underwear, loungewear and shapewear.
3+ YOE3+ years building backend applications with Python and Django; experience with AWS services (SNS, SQS, API Gateway, Step Functions, S3); strong communication, stakeholder collaboration, and production deployment experience.
Python, Django, AWS, SNS, SQS, API Gateway, Step Functions, S3, Claude Code, AWS Glue
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2w
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Senior Backend Engineer
Oakland, California, United States
$150k-$200k/yr OnsiteFull Time
Arxlight
Arxlight: Arxlight is a private defense-technology startup developing interceptor drones for U.S. and international customers.
Requires Linux expertise, backend or systems development in Python, C++, Go, TypeScript, or similar languages, networking, Docker, Systemd, Git, and AI coding tools.
Linux, Python, C++, Go, TypeScript, Docker, CI/CD, Systemd, TCP/IP, UDP, Git, MAVLink, Kotlin, Java
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1w
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Backend Engineer
Bangalore or India or San Francisco
RemoteFull Time
Mem0
Mem0: N AI infrastructure providing a memory layer for LLM applications and AI agents.
5+ YOE5+ years building production backend systems and REST APIs; strong Python, async programming, web frameworks, SQL, Postgres/MySQL, graph databases, AWS, Docker, Kubernetes, debugging, and collaboration skills.
REST APIs, Postgres, Neo4j, Redis, Python, FastAPI, Django, Django REST framework (DRF), Flask, Docker, Kubernetes, Amazon EKS, AWS, Amazon EC2, Amazon RDS, Amazon Aurora, Amazon S3, AWS IAM, Amazon CloudWatch, Prometheus, OpenTelemetry, MySQL, GraphQL, gRPC, Amazon SNS, Amazon SQS, Kafka, Celery, RQ
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2mo
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Backend Engineer
San Francisco, California, United States
$130k-$200k/yr OnsiteFull Time
Sandberg Goldberg Bernthal Family Foundation
Sandberg Goldberg Bernthal Family Foundation: The Sandberg Goldberg Bernthal Family Foundation works to build a more equal and resilient world.
3+ YOE3+ years backend or full-stack engineering experience with data/analytics; strong Python (preferred) or Node.js/Ruby/Java, SQL and NoSQL skills; experience building data pipelines, defining metrics, A/B testing, and data visualization; bachelor's in CS/data field or equivalent.
Python, Node.js, Ruby, Java, SQL, NoSQL, RESTful APIs
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2mo
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Senior Backend Engineer
Madrid or Paris or Seattle or London or Berlin or San Francisco or New York City or Sydney or Mexico City
HybridFull Time
Aircall
Aircall: Private B2B SaaS providing AI-powered cloud communications software for business sales and support teams.
6+ YOE6+ years backend development with a typed language (TypeScript preferred), production AWS experience, infrastructure-as-code (CloudFormation or Terraform), security-first mindset, serverless experience, GraphQL a plus, on-call rotation and mentoring experience.
TypeScript, AWS, CloudFormation, Terraform, GraphQL
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4mo
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Backend Engineer - PCB CAD Integration
Los Angeles, California, United States
$150k-$160k/yr RemoteFull Time
Quilter
Quilter: AI software platform that automates printed circuit board placement and routing for electrical and hardware engineering teams.
3+ YOE3+ years backend software experience; expert Python; strong API design and distributed systems; leadership and collaboration; startup environment adaptability.
Python, Backend frameworks, AWS, Docker, Kubernetes, Terraform, JSON, XML, protobuf
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1mo
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Backend Engineer - Oort
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Space infrastructure helping governments, companies, and research institutions deploy and operate missions in low Earth orbit.
Proficiency in Python and Docker, backend/API design and database interaction, experience with space mission technologies, strong communication and product mindset.
Python, Docker, Django, GraphQL, GCP, AWS, Kubernetes, PyTest, Jest, React Testing Library, Playwright, Cypress
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3d
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Backend Engineer - Studio
Stockholm or London or New York City or Los Angeles or Berlin or Paris or Oslo or Seoul
HybridFull Time
Epidemic Sound
Epidemic Sound: Music-tech platform licensing owned music and sound effects to creators, brands, and production companies.
Strong backend and distributed-systems experience with Python or Go, production agentic systems, cloud services, event-driven architecture, observability, and incident response.
Python, Go, GraphQL, TypeScript, React, Google Cloud Platform (GCP), Pub/Sub, Google Kubernetes Engine (GKE)
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1mo
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Staff Backend Engineer
New York City or San Francisco
$250k-$300k/yr OnsiteFull Time
Town
Town: Town is a privately held applied-AI software building assistants that help people create and use software at work.
Experienced backend engineer with production experience scaling distributed systems, LLM/agent infrastructure, workflow orchestration, and defining technical direction in fast-moving startups.
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