203 back end engineer jobs at 140 companies in Cotati, CA
3w
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Sr Backend Engineer
San Francisco or New York
$167k-$219k/yr HybridFull Time
4+ YOE4+ years backend or data engineering experience; strong SQL and data warehouse experience; proficiency in Python/Java/Scala; Elasticsearch/OpenSearch experience; experience building production data pipelines and backend services.
Elasticsearch, OpenSearch, SQL, Snowflake, BigQuery, Redshift, Python, Java, Scala, Airflow, Dagster, Prefect, dbt, REST, gRPC, Datadog, Prometheus, Grafana, Docker, Kubernetes, AWS, GCP, Azure, Spark, Kafka, Flink, FAISS, ScaNN, pgvector, LightGBM, XGBoost, BM25, HNSW, kNN
1mo
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Lead Backend Engineer
San Francisco or Lehi or Plano
$138k-$216k/yr HybridFull Time
10+ YOE10+ years backend engineering experience with Java and Spring Cloud, microservices and integration platform experience (Mulesoft), AI tooling familiarity, cloud (AWS/GCP), SQL/PostgreSQL, system development, and strong communication and leadership skills.
Java, Spring Cloud, Mulesoft, GitHub Copilot, Cursor, WindSurf, AWS, GCP, SQL, PostgreSQL
1w
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Principal Engineer, Backend Engineering
San Francisco, California, United States
$210k-$274k/yr OnsiteFull Time
Expert backend engineering to design and lead an AI proxy platform, ensure high availability, cost-efficiency, security integration, and mentor engineering teams.
Codex, Cursor, Claude Code, Rovo CLI
2mo
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Software Engineer, Back-End
San Francisco or Seattle
$164k-$284k/yr HybridFull Time
5+ YOE5+ years back-end development, production systems at scale, cloud platforms, AI-powered systems, APIs, CI/CD, real-time architectures, independent and collaborative work.
Go, AWS, GCP, Azure, CI/CD, Infrastructure as Code, Real-time systems
6d
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Senior Backend Engineer
San Francisco, California, United States
$110k-$200k/yr OnsiteFull Time
5+ YOE5+ years backend experience, proficiency in Python, FastAPI, SQL, testing with pytest, experience designing data architectures and shipping production systems, familiarity with AI-assisted coding tools.
Python, FastAPI, pytest, Claude Code, Codex, OpenCode, SQL, AWS
3mo
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Backend Engineer
San Francisco, California, United States
$190k-$230k/yr OnsiteFull Time
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
2w
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Backend Engineer
San Francisco, California, United States
OnsiteFull Time
Strong backend application engineering experience with TypeScript or Python, API design, relational databases, async/background systems, debugging across services, and security best practices.
TypeScript, Python, Next.js, tRPC, FastAPI, PostgreSQL, Drizzle, Redis, Bun, Docker
1mo
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Backend Engineer
San Francisco, California, United States
$130k-$200k/yr OnsiteFull Time
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
3w
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Backend Infrastructure Engineer
San Francisco or North America
$200k-$250k/yr HybridFull Time
3+ YOE3+ years in backend, networking, or infrastructure engineering; production ownership and on-call responsibility; authorized to work in the US or eligible remote regions.
2mo
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Senior Backend Engineer
San Francisco, California, United States
$150k-$300k/yr OnsiteFull Time
4+ YOE4–6 years backend software engineering in a high-growth startup; ownership of backend systems; strong architectural judgment; in-person SF collaboration.
3mo
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Senior Backend Engineer (Python)
San Francisco, California, United States
$175k-$250k/yr RemoteFull Time
4+ YOE4+ years building production back-ends in Python; real-time streaming; AWS/GCP/Azure; PostgreSQL/Redis; FastAPI/asyncio; HIPAA security.
Python, FastAPI, asyncio, WebRTC, WebSockets, gRPC, AWS, GCP, Azure, Kubernetes, Kafka, SQS, Pub/Sub, Terraform, PostgreSQL, Redis, OpenTelemetry
3w
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Senior Backend Engineer (Go)
Casablanca or Palma de Mallorca or Europe or London or New York City or San Francisco or Africa
HybridFull Time
Strong hands-on Go experience, history integrating third-party APIs, ownership of end-to-end integrations, and ability to work at high scale and low process.
Go
2mo
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Backend Engineer
San Francisco, California, United States
$140k-$290k/yr OnsiteFull Time
Deep backend expertise; pragmatic, operationally minded, high ownership; experience building production services, databases, and integrations.
PostgreSQL, REST APIs, CI/CD, Git, Authentication, Observability
1mo
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Backend Engineer
San Francisco, California, United States
$135k-$250k/yr HybridFull Time
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
1mo
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Backend Engineer
San Francisco or New York City or Austin or Seattle
$175k-$300k/yr OnsiteFull Time
Experience building production services, observability, API and control-plane design, API-first infrastructure, incident response/pager duty, and familiarity with AI tooling and distributed systems.
LLM APIs, MCP servers, Claude Code, Cursor, Prometheus, Thanos, VictoriaMetrics, Temporal, Cadence, BMC/Redfish, Go, Python, Postgres, Kubernetes
3mo
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Senior/Staff Backend Engineer
New York or San Francisco
$170k-$220k/yr HybridFull Time
6+ YOE6+ years in software development; at least 2 years with Go or Java in production; platform team/API/background services; end-to-end feature ownership; strong problem-solving and data structures knowledge; mentoring and technical leadership; strong communication.
Go, Java, CI/CD, microservices, backend development
2w
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Staff Backend Engineer
New York City or San Francisco
$250k-$300k/yr OnsiteFull Time
Experienced backend engineer with production experience scaling distributed systems, LLM/agent infrastructure, workflow orchestration, and defining technical direction in fast-moving startups.
3w
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Backend Developer
San Francisco, California, United States
RemoteFull Time
3+ YOE3+ years backend development, proficiency in Python/Java/Node.js/Go/C#, API design (REST/GraphQL/event-driven), SQL/NoSQL knowledge, API security, Git, automated testing and deployment workflows.
Python, Java, Node.js, Go, C#, REST, GraphQL, SQL, NoSQL, Git, AWS, Azure, Google Cloud, Kubernetes
1mo
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Senior Backend Engineer
San Francisco, California, United States
$230k-$280k/yr OnsiteFull Time
5+ YOE5+ years backend engineering experience, strong distributed systems and data modeling skills, experience owning infrastructure (Kubernetes, Terraform, AWS), proficiency with TypeScript/Node.js, excellent communication.
TypeScript, Node.js, Express, PostgreSQL, Redis, Kubernetes, Terraform, AWS, Codex 5.3, Claude Opus 4.6
1w
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Backend Software Engineer
San Francisco or United States
HybridFull Time
5+ YOE5+ years backend experience, proficiency with Kotlin/JVM or Java/Go/Python/Node.js, experience with event systems (SQS,Kafka,PubSub), and ability to deliver end-to-end backend features.
Kotlin, Micronaut, PostgreSQL, Redis, AWS, ECS, React, TypeScript, GitHub, Slack, Linear, SQS, Kafka, PubSub, Java, Go, Python, Node.js
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