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1,232 sr api developer jobs at 538 companies in Union City, CA

2d
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Sr. II Backend Engineer, Mobile API
San Mateo, California, United States
$176k-$220k/yr HybridFull Time
Slickdeals
Slickdeals: Platform for crowdsourcing and ranking consumer shopping deals.
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, Developer API
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$330k/yr HybridFull Time
Ramp
Ramp: Financial operations platform for corporate cards and spend management.
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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3mo
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Sr. SW Test Engineer
Foster City, California, United States
$110k-$170k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
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
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1w
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Software Engineer, API Multimodal
San Francisco, California, United States
$293k-$385k/yr OnsiteFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
7+ YOE7+ years backend/infrastructure experience building and operating production APIs and distributed systems; proficiency with Python, Go, Rust, or TypeScript; strong systems fundamentals and product judgment.
Python, Go, Rust, TypeScript
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2w
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Lead Software Engineer (API & Microservices development)
San Jose, California, United States
$215k-$245k/yr OnsiteFull Time
NetApp
NetAppNasdaq: NTAP: Provides intelligent data infrastructure for hybrid cloud environments.
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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1w
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Sr. Engineer, Software Development
New York City or Birmingham or Miami or Tampa or Blue Ash or Cincinnati or Los Angeles or San Francisco
$121k-$173k/yr HybridFull Time
Green Dot
Green DotNYSE: GDOT: Provides mobile banking and payment solutions to consumers and businesses.
5+ YOE5+ years software engineering experience with secure API/microservice development, cloud (Azure) and observability; 1+ year technical leadership; fintech or BaaS experience preferred.
C#, .NET, SQL, APIM, Azure SQL, Cosmos DB, Key Vault, Service Bus, Event Hubs, Datadog, Grafana, Git, OAuth2, Open API
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4w
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Staff Software Engineer, API Platform
San Francisco or Seattle
OnsiteFull Time
Stripe
Stripe: Provides online payment processing and financial infrastructure for businesses.
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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1mo
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Sr Software Development Engineer, Product Engineering – API Platform & Agentic AI
Pleasanton, California, United States
$176k-$264k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
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
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1w
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Staff Software Engineer, API Platform
Seattle or South San Francisco
$224k-$336k/yr OnsiteFull Time
Stripe
Stripe: Provides global financial infrastructure and payment processing for businesses.
12+ YOE5+ Mgmt12+ years technical experience,5+ years technical leadership,experience with API design and infrastructure,proficiency in at least one of Java,Ruby,Python,Go,strong communication and problem-solving skills.
Java, Ruby, Python, Go, Kafka, Kubernetes
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4d
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Staff Software Engineer, Fintech API
Mountain View, California, United States
$203k-$274k/yr OnsiteFull Time
Intuit
IntuitNASDAQ: INTU: Provides financial software for accounting, tax, and personal finance.
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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2w
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Lead Software Engineer (API & Microservices development)
San Jose, California, United States
$215k-$245k/yr OnsiteFull Time
NetApp
NetAppNASDAQ: NTAP: Sells enterprise data storage and cloud management software.
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
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2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
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
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1mo
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Member of Technical Staff (Software Engineer, API Platform)
San Francisco or New York City
$220k-$405k/yr OnsiteFull Time
Perplexity
Perplexity: AI-powered search engine providing conversational answers with 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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2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
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
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2d
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Sr. Java backend developer
Sunnyvale, California, United States
$110k-$130k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
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
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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
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
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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2mo
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Sr Software Engineer, Python
San Jose, California, United States
$144k-$213k/yr HybridFull Time
PayPal
PayPalNASDAQ: PYPL: Digital platform for sending money and processing online payments.
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
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1w
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Staff Software Engineer, API Proxy
Sunnyvale, California, United States
$207k-$300k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
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
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5d
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Sr. Full Stack Engineer
Sunnyvale, California, United States
$165k-$196k/yr OnsiteFull Time
Illumio
Illumio: Provides zero-trust segmentation software to contain cyberattacks.
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
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2w
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Sr Salesforce Developer - Field Service and Customer operations
Menlo Park, California, United States
$124k-$145k/yr RemoteFull Time
Mainspring Energy
Mainspring Energy: Manufactures fuel-flexible linear generators for onsite power generation.
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
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