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509 backend engineer typescript jobs at 309 companies in California

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Senior Backend Software Engineer - Node.js/TypeScript
New York or California or Massachusetts or Texas or New Jersey or United States
$120k-$150k/yr RemoteFull Time
Makai Labs
Makai Labs: Provides AI-powered enterprise automation and human-machine teaming solutions.
7+ YOE7+ years backend engineering experience with Node.js/TypeScript, production services, regulated/compliance environments, relational data modeling, Docker, and microservices patterns.
Node.js, TypeScript, Docker, NestJS, Express, Fastify, Azure, Kubernetes, AKS, Temporal
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1w
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Backend Engineer
San Francisco, California, United States
OnsiteFull Time
Pi
Pi: Agentic AI platform for automated software vulnerability remediation.
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
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3mo
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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 Engineer
San Francisco, California, United States
$230k-$280k/yr OnsiteFull Time
Mochi Health
Mochi Health: Provides telehealth weight management and prescription medication services.
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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1w
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Senior Backend Engineer
Mountain View, California, United States
$190k-$240k/yr HybridFull Time
Matternet
Matternet: Develops autonomous drone networks for urban package delivery.
6+ YOE6+ years building and operating production backend systems; strong Node.js/TypeScript skills, API design (GraphQL/REST), relational databases, cloud, containers, CI/CD, reliability, monitoring, and security.
Node.js, TypeScript, GraphQL, NestJS, Next.js, React, Kafka, MQTT
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1mo
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Staff Backend Engineer
San Francisco, California, United States
$220k-$270k/yr OnsiteFull Time
Arena Club
Arena Club: Digital marketplace and vaulting service for sports collectibles
8+ YOE8+ years backend experience, strong Node.js/TypeScript/Postgres skills, observability (Datadog), AWS and Terraform experience, marketplace/eCommerce background, familiarity with AI coding tools, and leadership/mentorship ability.
Node.js, TypeScript, Redis, Postgres, BullMQ, Claude Code, Cursor, Datadog, AWS, S3, SNS, SQS, Terraform, Docker, Kubernetes (EKS), Python
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1mo
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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: Cloud-based business phone system and customer communication platform.
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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3mo
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Senior Backend Developer
San Francisco, California, United States
$160k-$210k/yr RemoteFull Time
Ellipsis Health
Ellipsis Health: AI-powered voice agent for healthcare care management.
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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1d
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Senior / Staff Backend Engineer
San Francisco or Austin
OnsiteFull Time
Wander
Wander: A building a platform for short-term rental hosts and guests, focused on technology and guest experience.
4+ YOE4+ years building backend systems with Node.js/TypeScript, strong SQL/Postgres and ORM experience, API integrations at scale, async/event-driven architecture, and product-minded communication.
TypeScript, Node.js, Postgres, Prisma, Redis, Kafka, Temporal, SQL, Guesty, Hostaway, OwnerRez, Lodgify, Streamline, Track, Escapia
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1mo
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Senior/Staff Backend Engineer
New York City or San Francisco
OnsiteFull Time
Lighthouse
Lighthouse: Technology-driven platform for U.S. immigration and visa services.
5+ YOE5+ years building and operating production backend systems; strong in Python and TypeScript; experience with PostgreSQL, GraphQL, serverless, async and event-driven architectures; familiarity with LLMs and integrations (Slack, Linear, HubSpot, Front).
Python, TypeScript, PostgreSQL, GraphQL, Slack, Linear, HubSpot, Front, CRDTs, LLMs, serverless
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1w
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Senior Backend Engineer (Milan)
Milan or California or New York or United States or Canada or Europe
OnsiteFull Time
Eight Sleep
Eight Sleep: Develops smart mattresses and temperature-regulated sleep technology.
8+ YOE8+ years software engineering experience,5+ years backend/SRE experience,advanced backend and distributed systems skills,proficiency in at least two listed languages,experience with cloud services.
Java, Scala, Kotlin, C#, F#, .NET Core, Python, NodeJS, TypeScript
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2w
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Backend Platform Engineer
San Francisco, California, United States
$180k-$240k/yr OnsiteFull Time
Usul
Usul: AI platform for winning government defense contracts.
2+ YOEMinimum 2 years backend infra experience; familiarity with Python, DevOps, Bash, Linux, Kubernetes, Terraform, AWS/GCP; Typescript is a bonus; strong problem-solving for national security use cases.
Python, DevOps, Bash, Linux, Kubernetes, Terraform, AWS, GCP, Typescript
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1mo
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Backend Software Engineer
California, United States
$150k-$200k/yr HybridFull Time
Doxel
Doxel: AI-powered computer vision for construction progress tracking.
2+ YOE3+ years programming (Python, C++, TypeScript or functional languages); 2+ years backend/full-stack experience in cloud environments; 1+ year ETL/Airflow; PostgreSQL, SQL, Kubernetes, DuckDB, Wasm experience; Bachelor's in CS or related.
three.js, DuckDB, Airflow, PostgreSQL, Kubernetes, Python, C++, TypeScript, SQL, WebAssembly (Wasm)
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3w
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Sr. Backend Engineer, Digital Engineering
Carlsbad, California, United States
$148k-$180k/yr RemoteFull Time
Vuori
Vuori: Designs and sells performance athletic and lifestyle apparel.
5+ YOEBachelor's degree preferred,5+ years backend experience,expertise in TypeScript/Node.js or comparable language,REST/GraphQL,serverless,PostgreSQL,testing,CI/CD,observability and strong communication.
TypeScript, Node.js, JavaScript, Python, REST, GraphQL, Azure Functions, AWS Lambda, PostgreSQL, Jest, JWT, OAuth, GitHub, Bitbucket, YAML, New Relic, Sentry, Azure Application Insights, React, NestJS, Next.js, Express, Fastify, Shopify APIs, Azure Bicep, Amazon CDK, Terraform, Azure Service Bus, Amazon Data Firehose
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2mo
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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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4d
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Lead Backend Software Engineer
San Carlos, California, United States
$185k-$260k/yr HybridFull Time
Beacon AI
Beacon AI: Developing an AI-powered-pilot for safer flight operations.
5+ YOE5+ years building backend services, APIs, and distributed systems; experience with Python and JavaScript/TypeScript (Node.js); data pipeline and production reliability experience; strong ownership and communication.
Python, JavaScript, TypeScript, Node.js
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5d
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Backend Software Engineer
San Francisco or United States
HybridFull Time
Teambridge
Teambridge: AI-native platform for hourly workforce scheduling and management.
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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1mo
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Backend Software Engineer, API Multicloud
San Francisco, California, United States
$293k-$385k/yr HybridFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
7+ YOE7+ years engineering experience; proficiency in backend languages (Python, Go, Rust, Typescript); experience with distributed systems, cloud services, developer tools, and production service ownership; strong communication and system-design skills.
Python, Go, Rust, Typescript, AWS, OpenAI Responses API, Codex
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2mo
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Staff Engineer, Backend & Data
San Francisco, California, United States
$168k-$230k/yr HybridFull Time
Trial Library
Trial Library: AI-platform for clinical trial recruitment and patient navigation.
8+ YOE8+ years backend experience; staff-level ownership; strong AWS, AI tooling usage; healthcare domain interest; HIPAA experience a plus.
AWS, Python, Typescript, React, PostgreSQL, Drizzle, Terraform, Lambda, Fargate, SQS, RDS
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3w
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Senior Backend Engineer, Growth & Agents
San Francisco, California, United States
$185k-$250k/yr HybridFull Time
EvenUp
EvenUp: AI-powered document generation and analysis for personal injury law.
5+ YOE5+ years engineering experience, strong track record shipping production systems, experience with ambiguity and technical ownership; TypeScript or Python experience a plus; AI/communication platform experience preferred.
TypeScript, Python
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