656 sr api developer jobs at 246 companies in Tracy, CA
3mo
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Sr. SW Test Engineer
Foster City, California, United States
$110k-$170k/yr HybridFull Time
2+ YOE2+ years experience with BS or 5+ years; strong API testing, automation, and QA; Agile tools; CI/CD; knowledge of Go/Scala; Jira/Confluence; distributed systems testing.
Jira, Confluence, SOAP UI, Postman, REST Client, Cucumber, Selenium, Gherkin, Jenkins, Go, Scala, Erlang, Git
2w
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Lead Software Engineer (API & Microservices development)
San Jose, California, United States
$215k-$245k/yr OnsiteFull Time
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
1mo
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Sr Software Development Engineer, Product Engineering – API Platform & Agentic AI
Pleasanton, California, United States
$176k-$264k/yr HybridFull Time
8+ YOE8+ years software engineering experience; 5+ years with TypeScript or Python; Bachelor's in CS/Engineering or equivalent; strong algorithms, API design (REST/GraphQL/SOAP/OpenAPI), testing, observability, and mentoring skills.
TypeScript, Python, OpenAPI, Swagger, REST, SOAP, GraphQL, JUnit, ScalaTest, Postman, Mockito, JaCoCo, Scoverage, Git, Cursor, Claude Code, GitHub Copilot, MCP
4d
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Staff Software Engineer, Fintech API
Mountain View, California, United States
$203k-$274k/yr OnsiteFull Time
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
2w
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Lead Software Engineer (API & Microservices development)
San Jose, California, United States
$215k-$245k/yr OnsiteFull Time
8+ YOE8+ years building backend services, production REST APIs, microservices, container/Kubernetes experience, database integration (Postgres/MongoDB), strong testing/CI/CD and communication skills.
Go, C++, C#, Docker, Kubernetes, PostgreSQL, MongoDB, Python, React, TypeScript, RabbitMQ, Kafka, Azure, AWS, GCP
2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
12+ YOE12+ years of experience designing Java full-stack commerce solutions and Spring Boot microservices, with expertise in APIs, testing, cloud-ready architectures, security, performance, and data modeling.
Java, Spring Boot, Spring Boot microservices, RESTful, API, testing frameworks, build tools, version control systems, containerized deployments
2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
12+ YOERequires 12+ years of experience with Java, Spring Boot microservices, full-stack commerce solutions, RESTful APIs, data modeling, testing, cloud-ready architectures, security, and performance tuning.
Java, Spring Boot, REST, API, Microsoft Azure
2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
12+ YOE12+ years of experience designing Java and Spring Boot microservices, REST APIs, data models, testing and build tools, version control, performance tuning, security, containers, and cloud-ready architectures.
Java, Spring Boot, REST, API, testing frameworks, build tools, version control systems
4w
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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
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
2mo
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Sr Software Engineer, Python
San Jose, California, United States
$144k-$213k/yr HybridFull Time
3+ YOE3+ years backend development experience with a Bachelor's degree; proficient in Python and backend frameworks; experience designing RESTful APIs and microservices; ability to lead and mentor teams.
Python, Django, Flask, REST, Docker, Kubernetes, AWS, GCP, Azure
1w
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Staff Software Engineer, API Proxy
Sunnyvale, California, United States
$207k-$300k/yr OnsiteFull Time
8+ YOEBachelor's or equivalent experience, 8+ years C++ programming, 5+ years testing/launching software, 5+ years building large-scale distributed systems, EMR not mentioned (ignore), leadership and architecture experience preferred.
C++, gRPC, HTTP, Stubby, Envoy Proxy, Enterprise Security Framework (ESF), One Model Context Protocol (OneMCP), ExtProc
5d
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Sr. Full Stack Engineer
Sunnyvale, California, United States
$165k-$196k/yr OnsiteFull Time
5+ YOE5+ years full-stack/UI development experience with React and TypeScript, RESTful API design, strong HTML/CSS/JavaScript skills, Git experience, and cloud/container familiarity.
React.js, TypeScript, HTML5, CSS3, JavaScript, RESTful API, Git, Docker, Kubernetes, AWS, Azure, Google Cloud
2w
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Sr Salesforce Developer - Field Service and Customer operations
Menlo Park, California, United States
$124k-$145k/yr RemoteFull Time
7+ YOE7+ years Salesforce development with deep Salesforce Field Service and Service Cloud experience; proficiency with Apex, LWC, Flow, SOQL, APIs, integrations, and platform security; strong troubleshooting and stakeholder skills.
Apex, Lightning Web Components, Flow, SOQL, APIs, Experience Cloud, Service Cloud, Salesforce Field Service, Manufacturing Cloud, Sales Cloud, CI/CD
1mo
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Sr Aderant Engineer
Reston or San Diego or San Francisco or Washington or Wilmington or Phoenix or Los Angeles or Houston or Boston or Austin or Atlanta or Raleigh or Baltimore or New York or Dallas or Palo Alto or Short Hills or Minneapolis or Chicago or Seattle or Philadelphia or Miami
$113k-$179k/yr HybridFull Time
5+ YOE5+ years supporting Aderant Expert and enterprise financial/practice management systems, strong backend development and SQL skills, experience with integrations/APIs, bachelor's in CS/IT, analytical and troubleshooting ability.
Aderant Expert, SQL, APIs
2w
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Sr. Mobile App Developer
Sunnyvale, California, United States
$180k-$259k/yr OnsiteFull Time
8+ YOE8+ years software development (or 6+ with master’s),3+ years React Native,2+ years native Android,experience with app store releases,source control and CI/CD,strong problem solving and communication.
React Native, Android, git, Google Play Store, Apple App Store, Jenkins, GitLab CI, CircleCI, App Center, REST API
3d
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Sr Software Engineer
San Jose, California, United States
$206k-$244k/yr HybridFull Time
5+ YOEMaster's degree in computer science, software engineering, or related field plus 5 years' experience. Requires JavaScript, Node.js, Express, React or Angular, databases, APIs, and distributed systems expertise.
JavaScript, Node.js, React, Express, ES6, SQL, HTML, CSS, Angular, Chrome, Safari, Mobile Safari, GraphQL, REST APIs, CI/CD
1w
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Sr. Backend Engineer
New York or Sunnyvale or Berkeley Heights or Alpharetta
$128k-$216k/yr OnsiteFull Time
10+ YOEBachelor's or equivalent,10+ years software engineering,Java/JVM and Spring Boot expertise,cloud-native/Kubernetes and Terraform experience,SQL/NoSQL schema design,REST API architecture,mentorship and on-call experience.
Java, Spring Boot, Kubernetes, Terraform, PostgreSQL, MySQL, Google Cloud Platform (GCP), GitHub Copilot, Cursor, Claude, ChatGPT
3d
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Sr. Principal Software Engineer
Sunnyvale or United States or Canada or Ottawa
$203k-$335k/yr OnsiteFull Time
5+ YOERequires 5+ years with AWS, Azure, or GCP; large-scale distributed systems, API design, Kubernetes, containerization, traffic routing, network protocols, security, and data privacy; master's degree required.
AWS, Microsoft Azure, Google Cloud Platform (GCP), Kubernetes
2mo
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Sr Staff Engineer Software
Santa Clara, California, United States
$126k-$205k/yr RemoteFull Time
AI tools knowledge, AI agents, Python/SQL, databases, containers, REST APIs, messaging systems, collaboration.
Python, SQL, Elasticsearch, Cassandra, BigQuery, Docker, Kubernetes, Git, Airflow, RabbitMQ, Pub/Sub, REST, React, AWS, GCP
3w
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Staff Software Engineer, Foundation Model API
San Francisco or Mountain View
$190k-$265k/yr OnsiteFull Time
8+ YOE8+ years backend/infrastructure experience, distributed systems, scalable APIs, cloud-native infra, real-time serving/ML infra/GPU orchestration, strong Scala/Go/Python skills, product ownership and customer engagement.
OpenAI, Anthropic, Gemini, Qwen, GPT-OSS, Llama, SageMaker, Vertex AI, Azure ML, FMAPI, Apache Spark™, Delta Lake, MLflow, Scala, Go, Python
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