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3,379 api developer jobs at 1,327 companies in California

4d
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Windchill API Developer
Mountain View, California, United States
$90k-$110k/yr RemoteFull Time
Bright Vision Technologies
Bright Vision Technologies: AI-powered enterprise automation and software development firm.
5+ YOEBachelor’s degree and 5+ years of PLM integration experience focused on Windchill. Requires Info*Engine, Windchill Java API, ERP, middleware, SQL, REST, SOAP, troubleshooting, and communication skills.
Info*Engine, Windchill Java API, SAP, Oracle, MuleSoft, Boomi, OIC, SAP CPI, SQL, REST, SOAP, ThingWorx, Kafka
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3d
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Control Plane / Portal / API Engineer
San Jose or Austin
$145k-$260k/yr RemoteFull Time
Bitdeer
BitdeerThe Nasdaq Stock Market LLC: BTDR: Public Singaporean Bitcoin mining and AI cloud infrastructure serving enterprises with computing, datacenters, and mining solutions.
3+ YOERequires 3+ years building backend services, control planes, or web platforms; strong Go, Java, or Python backend engineering, API design, and distributed systems experience. Senior roles require 6+ years.
Go, Java, Python, React, Vue, OAuth, OIDC
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2mo
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Software Engineer, Developer API
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$330k/yr HybridFull Time
Ramp
Ramp: Finance automation platform for business.
5+ YOE5+ years backend engineering, experience building APIs/platforms, hands-on with Python, Temporal, and Postgres, familiarity with AI coding agents, strong ownership and developer-experience focus.
Python, Temporal, Postgres
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1w
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Software Engineer, API Safety
San Francisco, California, United States
$293k-$385k/yr HybridFull Time
OpenAI
OpenAI: AI research and deployment focused on beneficial AGI.
7+ YOERequires 7+ years of professional backend, infrastructure, platform, or product engineering experience; production distributed systems and API expertise; strong systems fundamentals; and proficiency in Python, Go, Rust, or TypeScript.
API, Python, Go, Rust, TypeScript
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1mo
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API Integration Specialist
Rosemead, California, United States
$37-$43/hr OnsiteFull Time
Cathay Bank
Cathay BankNASDAQ: CATY: Commercial bank providing financial services to individuals and businesses.
2+ YOERequires 2+ years of API development or systems integration experience, MuleSoft Anypoint Platform expertise, API specifications using RAML, Swagger, OpenAPI, or Postman, and API security knowledge. A computer science degree is preferred.
MuleSoft Anypoint Platform, MuleSoft API Manager, MuleSoft Exchange, RAML, Swagger, OpenAPI, Postman, Azure DevOps, Java, Python, JavaScript, JSON, XML
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1mo
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API Product Manager
South San Francisco, California, United States
$135k-$145k/yr HybridFull Time
VantageScore Solutions, LLC
VantageScore Solutions, LLC: A Higher Level of Confidence
1+ YOE1–3 years product management with direct API product experience; experience improving developer onboarding, API docs, sandbox/testing, and cross-functional leadership; Bachelor’s degree required.
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1mo
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Lead Software Engineer (API & Microservices development)
San Jose, California, United States
$215k-$245k/yr OnsiteFull Time
NetApp
NetAppNASDAQ: NTAP: Global cloud-led, data-centric software.
8+ YOE8+ years building backend services and microservices; hands-on experience with Go/C++/C#; REST API development; containerized architectures, Kubernetes, and DB integration; strong testing, CI/CD, and communication skills.
Go, C++, C#, Docker, Kubernetes, PostgreSQL, MongoDB, Python, React, TypeScript, rabbitmq, Kafka, CI/CD
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3w
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Sr. II Backend Engineer, Mobile API
San Mateo, California, United States
$176k-$220k/yr HybridFull Time
Slickdeals
Slickdeals: Privately owned online deal-sharing community helping shoppers find, evaluate, and save on products and services.
Extensive backend development experience with PHP, RESTful or GraphQL APIs, relational databases, distributed systems, cloud platforms, containers, CI/CD, production monitoring, and cross-team technical leadership.
PHP, Vue, TypeScript, MySQL, PostgreSQL, RabbitMQ, Valkey, Redis, Kafka, Firebase Cloud Messaging, APNs, Docker, Kubernetes, GitHub Actions, JWT, RESTful, GraphQL, iOS, Android, CI/CD
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1mo
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Software Engineer (API & Microservices development)
San Jose, California, United States
$180k-$210k/yr OnsiteFull Time
NetApp
NetAppNASDAQ: NTAP: Global cloud-led, data-centric software.
4+ YOE4+ years software engineering experience building backend services, production REST APIs, containerized microservices, Kubernetes, and databases (PostgreSQL or MongoDB); proficiency in Go/C++/C#; strong testing and CI/CD practices.
Go, C++, C#, Docker, Kubernetes, PostgreSQL, MongoDB, Python, React, TypeScript, rabbitmq, Kafka
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2w
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Staff Software Engineer - Authentication & API
San Francisco or Austin
HybridFull Time
Orum
Orum: AI-powered calling software that helps sales teams connect with prospects, coach representatives, and generate pipeline.
8+ YOE8+ years of software engineering experience with Staff-level scope; expertise in TypeScript, Node.js, APIs, SQL, PostgreSQL, authentication, authorization, and distributed systems.
Node.js, TypeScript, React, PostgreSQL, Google Cloud Platform, REST, WebSocket, gRPC, OAuth2, JWT, RBAC, SQL, FreeSWITCH, Salesforce, Outreach, AWS, Azure
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1mo
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Staff Software Engineer, API Platform
San Francisco or Seattle
OnsiteFull Time
Stripe
Stripe: Financial infrastructure platform for online businesses and enterprises.
12+ YOE5+ Mgmt12+ years technical experience,5+ years strategic technical leadership,experience with API design and infrastructure,proficient in Java/Ruby/Python/Go,strong communication and problem-solving skills.
Java, Ruby, Python, Go, Kafka, Kubernetes
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3w
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Staff Software Engineer, Fintech API
Mountain View, California, United States
$203k-$274k/yr OnsiteFull Time
Intuit
IntuitNASDAQ: INTU: A global financial technology platform powering prosperity.
10+ YOE10+ years software engineering experience with deep API design, distributed systems, codegen/CI-CD, AI agent tooling, cross-team technical leadership; Bachelor\u0002s in CS or equivalent experience.
OpenAPI, REST, Model Context Protocol (MCP), Claude, ChatGPT Actions, LLM, CI/CD
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1mo
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Software Engineer, Metal Runtime (API & Abstractions)
Austin or Santa Clara or Toronto
$100k-$500k/yr HybridFull Time
Tenstorrent
Tenstorrent: Builds computers for artificial intelligence.
Strong C/C++ low-level systems programming, concurrency and performance experience; API and abstraction design; collaboration with runtime, kernel, compiler teams.
C, C++
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3w
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Software Engineer III, Infrastructure, API Proxy, One Platform
Sunnyvale, California, United States
$147k-$210k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOG, GOOGL: Global technology specializing in internet-related services and products.
2+ YOEBachelor's degree or equivalent,2 years infrastructure or distributed systems experience,2 years programming in C++,EMR not required,experience with API development and performance optimization preferred.
C++, Google Cloud
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5d
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Software Engineer, API(Python)
Bengaluru or San Mateo
HybridFull Time
Nexla
Nexla: Privately held enterprise data-integration platform that helps organizations deliver governed data products for AI agents and applications.
7+ YOE7+ years of software engineering with Python; FastAPI or Starlette and SQLAlchemy; strong SQL and relational database skills; testing and production operations experience; practical AI tooling experience.
Python, FastAPI, SQLAlchemy, Starlette, MySQL, Postgres, Celery, Dramatiq, Kafka, RabbitMQ, Redis Streams, AWS, GCP
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2mo
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Member of Technical Staff (Software Engineer, API Platform)
San Francisco or New York City
$220k-$405k/yr OnsiteFull Time
Perplexity AI
Perplexity AI: Private American software offering an AI-powered conversational search engine with real-time web answers and citations.
5+ YOE5+ years backend engineering with Python, Go, or Rust; strong high-traffic API design, AWS and Kubernetes experience, CI/CD and DevOps fluency; experience with AI APIs a plus.
Python, Go, Rust, AWS, Kubernetes, CI/CD
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1mo
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Exec Director, API Synthetic Development
San Diego, California, United States
$244k-$333k/yr OnsiteFull Time
Neurocrine Biosciences
Neurocrine BiosciencesNasdaq Global Select Market: NBIX: Develops treatments for neurological, psychiatric, endocrine, and immunological disorders.
12+ YOEAdvanced degree in chemistry plus 12–16+ years pharmaceutical/process development experience, deep organic/process chemistry knowledge, cGMP manufacturing expertise, CRO/CMO leadership, program and people management, and strong communication skills.
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1mo
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Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yr OnsiteFull Time
CoreWeave
CoreWeaveNasdaq: CRWV: Specialized cloud provider for large-scale AI and machine learning.
Production Go experience, API design and versioning, client tooling/SDK/CLI or provider work, code-generation or compiler/tooling experience preferred, cross-team collaboration and mentorship.
Go, gRPC, protocol buffers, Buf, ConnectRPC, Terraform Plugin Framework, Cobra, CWIC
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1mo
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Operations Engineer - Peptide API
Menlo Park, California, United States
$110k-$125k/yr OnsiteFull Time
Hims & Hers
Hims & HersNYSE: HIMS: Publicly traded U.S. telehealth platform connecting consumers with licensed providers and personalized prescription and wellness care.
2+ YOEBachelor's in chemical/chemistry/biochemistry or related, 2+ years pharma/biotech/chemical manufacturing experience, peptide/API manufacturing or complex chemical process experience preferred, cGMP knowledge, hands-on troubleshooting, documentation and SOP experience.
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2mo
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Cloud & API Platforms Practice Lead (AVP)
St. Louis or Chicago or Boston or Houston or Dallas or Irvine or Minneapolis or Detroit or Alpharetta or New York City
$150k-$250k/yr OnsiteFull Time
Perficient
Perficient: Private global digital consultancy providing AI, technology, and digital transformation services to enterprises.
10+ YOE5+ Mgmt10–15 years experience with 5+ years leading practices; expertise in Platform API and IBM Cloud solutions, hands-on consulting, GTM strategy, partner/channel relationships, AI delivery knowledge, and willingness to travel.
MuleSoft, Apigee, Boomi, Workato, TIBCO, Terraform, IBM Cloud
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