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354 backend infrastructure engineer jobs at 212 companies in California

1mo
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Backend Infrastructure Engineer
San Francisco or North America
$200k-$250k/yr HybridFull Time
Firecrawl
Firecrawl: Private AI data infrastructure providing APIs that turn web pages into clean data for developers and AI agents.
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.
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3mo
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SWE - Backend Infrastructure Engineer
San Francisco or Bellevue or New York
$175k-$280k/yr OnsiteFull Time
Sesame
Sesame: Private venture-backed AI building voice agents and lightweight intelligent eyewear for everyday users.
3+ YOEStrong systems thinker with reliability engineering experience; 3+ years in infrastructure, platform, or ML systems; Kubernetes production experience; strong communication.
Kubernetes, Terraform, CloudFormation, Pulumi, TorchServe, Seldon, KServe, Ray Serve, PyTorch, APIs, Database design
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1w
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Back-End Infrastructure Engineer
Paris or London or New York City or San Francisco or Toronto
€66k-€120k/yr HybridFull Time
Pigment
Pigment: French private software providing AI-powered business planning for finance, sales, HR, and operations teams.
Software engineering experience in production products, infrastructure experience with Kubernetes, IaC and public cloud, and object-oriented design experience using languages such as C#, Java, C++, Golang, Rust, Python or Ruby.
C#, .NET Core, Linux, React, TypeScript, PostgreSQL, Google Cloud Platform, Docker, Kubernetes, Terraform, RabbitMQ, CircleCI, Java, C++, Golang, Rust, Python, Ruby
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Helix AI Engineer, Backend Infrastructure
San Jose, California, United States
$150k-$400k/yr OnsiteFull Time
Figure
Figure: Develops general-purpose humanoid robots.
5+ YOESenior backend engineer skilled in high-throughput, real-time streaming, cloud systems, and ML-serving integration.
Go, C++, Python, Rust, AWS, GCP, Azure, Docker, Kubernetes, Service Mesh, CI/CD
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Principal Backend Engineer - Core Infrastructure
Santa Clara, California, United States
$212k-$318k/yr OnsiteFull Time
Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc.: Developing semiconductor, wireless, connectivity, automotive, AI, and computing technologies for device and enterprise customers.
6+ YOEAdvanced software engineering experience (6+ years), proficiency in backend languages (Go, Java, Python, C/C++), cloud platforms, containerization, distributed systems, and API design; BS/MS/PhD in CS or related field.
C, C++, Java, Python, Go, Node.js, AWS, GCP, Azure, Docker, Kubernetes, MongoDB, Git, Prometheus, Grafana, ELK stack
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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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Senior Staff Backend Engineer - Cloud Infrastructure
Mountain View, California, United States
RemoteFull Time
Coupang
CoupangNYSE: CPNG: We exist to wow our customers.
10+ years cloud DevOps/SRE, IaC, Kubernetes; cloud providers AWS/Azure/GCP; IaC tooling Terraform; strong leadership and collaboration; hands-on infra engineering.
CI/CD, Infrastructure as Code, Terraform, Python, CloudFormation, Ansible, GitHub, CircleCI, Jenkins, Kubernetes, Docker, Linux, AWS, Azure, GCP
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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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Senior Backend Engineer
San Francisco, California, United States
$230k-$280k/yr OnsiteFull Time
Mochi Health
Mochi Health: Private telehealth serving patients with personalized virtual clinical care, weight management, and treatments across 120+ conditions.
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
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Senior Backend Engineer, Product
San Francisco, California, United States
OnsiteFull Time
Orion Sleep
Orion Sleep: Consumer sleep-technology selling smart mattress covers with biometric tracking and AI-powered temperature control.
Experience designing APIs, scaling backend systems from 0-1, and building infrastructure to support product features; strong backend engineering and system-architecture skills.
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Member of Technical Staff - Backend & Infrastructure
San Francisco, California, United States
OnsiteFull Time
Janitor AI
Janitor AI: AI is a private AI entertainment platform where creators build characters, worlds, and stories for users.
Product-minded backend engineer able to diagnose and fix distributed system issues; experience with Kubernetes, distributed systems, GPUs or similar systems is helpful; strong problem solving and ownership.
Kubernetes, AWS, WebSocket, GPU
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Backend Engineer
California or Colorado or Georgia or Idaho or Illinois or Kansas or Massachusetts or Maryland or Michigan or Minnesota or New Jersey or New York or Ohio or Oregon or Pennsylvania or Rhode Island or Texas or Washington
$180k-$220k/yr RemoteFull Time
Unit21
Unit21: Private AI risk-infrastructure helping banks and fintechs detect fraud and manage anti-money-laundering operations.
5+ YOE5+ years in data/software engineering, experience with large-scale data processing, advanced SQL, Python/OOP, cloud platforms, and infrastructure-as-code (Terraform).
Apache Spark, Databricks, Flink, Beam, Python, SQL, AWS, Azure, Google Cloud, Terraform
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Backend Engineer, Core Platform
San Francisco, California, United States
$190k-$240k/yr OnsiteFull Time
Lapel
Lapel: Private software building customer-operations infrastructure for internet businesses.
3+ YOE3+ years backend or software engineering; API design, databases, integrations, permissions, event-driven systems, long-running jobs; system design and reliable platform infrastructure
TypeScript, Node.js, Postgres, Temporal, Pulsar, React, Vite, Tailwind
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1w
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Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Redefining modern defense with a multi-product portfolio.
U.S. Person status, ability to obtain and maintain a U.S. security clearance, and backend/cloud engineering experience with scalable systems, infrastructure, reliability, and operations.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React, CI/CD
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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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2w
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Backend Software Engineer
San Francisco, California, United States
$165k-$225k/yr OnsiteFull Time
David AI
David AI: Audio data research creating datasets for AI labs and Fortune 100 companies.
2+ YOE2+ years of backend engineering experience; scalable systems, APIs, and data pipelines; production-grade infrastructure; customer-focused delivery; bonus experience in DSP, speech, ML deployment, or engineering leadership.
Node.js, tRPC, PostgreSQL, AWS, Trigger.dev, WebRTC, FFmpeg, TypeScript
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3d
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Senior Backend Engineer - Content Protection
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.
6+ YOERequires 6+ years of backend software engineering experience, distributed systems and high-throughput data pipeline expertise, modern backend language and cloud infrastructure proficiency, and full system ownership.
Python, Go, Java, GCP, AWS, YouTube, TikTok, Kafka
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Backend Engineer
San Francisco or New York City or Austin or Seattle
$175k-$300k/yr OnsiteFull Time
Fluidstack
Fluidstack: Building and operating civilization-scale data center infrastructure for AI.
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
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3mo
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Senior Staff Backend Engineer - Cloud Infrastructure
Mountain View, California, United States
$174k-$299k/yr HybridAll Commitments Available
Coupang
CoupangNYSE: CPNG: We exist to wow our customers.
10+ YOEExtensive cloud platform engineering with DevOps, IaC, Kubernetes; 10+ years in cloud, SRE/DevOps; leadership experience.
Terraform, Python, Go, CloudFormation, Ansible, GitHub, CircleCI, Jenkins, Kubernetes, Docker, Linux, AWS, Azure, GCP, IaC
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2mo
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Senior Backend Engineer, Rust
California or Colorado or New York or United States
RemoteFull Time
Offchain Labs
Offchain Labs: Venture-backed blockchain infrastructure building Ethereum scaling, consensus, and smart-account technologies for developers and enterprises.
Experienced Rust engineer for distributed systems and performance-critical infrastructure; production systems experience, ownership from design through operation; familiarity with WASM and blockchain infrastructure preferred.
Rust, C/C++, WebAssembly (WASM), EVM, Nitro, Stylus, Arbitrum, Prysm, ZeroDev
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