315 api developer jobs at 188 companies in Phelan, CA
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API Integration Specialist
Rosemead, California, United States
$37-$43/hr OnsiteFull Time
2+ YOE2+ years API development/integration experience; hands-on MuleSoft Anypoint Platform; API specs with RAML/Swagger/Open API/Postman; CI/CD and Azure DevOps experience; knowledge of JSON/XML and programming languages a plus.
MuleSoft Anypoint Platform, API Manager, Exchange, RAML, Swagger/Open API, Postman, Azure DevOps, JSON, XML, Java, Python, JavaScript
2d
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Web Developer I
Anaheim, California, United States
$101k-$160k/yr HybridFull Time
3+ YOEHigh school diploma and 3+ years of software development experience in Windows environments. Requires AI-assisted development and version-control experience plus SQL, APIs, SSO, HTML, CSS, .NET, and scripting knowledge.
Claude, Codex, Figma, GitHub, Microsoft SQL, Microsoft Office, API, SSO, SQL, HTML, CSS, .NET, GitHub Copilot, Git, SQL Server Reporting Services, Agile, Waterfall
1mo
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Software Engineer 2 - Salesforce Developer
Brea or Minneapolis or Cincinnati
$111k-$131k/yr HybridFull Time
3+ YOEBachelor's degree or equivalent experience, 3+ years relevant experience, strong Salesforce platform skills (Apex, Visualforce, Lightning), API integration experience, agile/DevOps familiarity, full‑stack development and code quality focus.
Salesforce, Apex, Visualforce, Lightning Component Framework, APIs, web services
2mo
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Salesforce Developer
Los Angeles or San Francisco
$105k-$115k/yr HybridFull Time
3+ YOE3+ years Salesforce development: Apex, LWC, Experience Cloud, API integrations (REST/SOAP), FormAssembly, CI/CD, Git; Platform Developer certification preferred.
Apex, SOQL, SOSL, Visualforce, Lightning Web Components (LWC), Aura Components, REST, SOAP, OAuth 2.0, JWT, Named Credentials, Platform Events, FormAssembly, JavaScript, HTML, CSS, Python, Java, C#, Salesforce DX (SFDX), CLI, change sets, GitHub Actions, Copado, Gearset, Jenkins, ANT, Git, GitHub, Microsoft Word, Microsoft Excel, Microsoft Outlook, PMD, Apex PMD, ESLint, MuleSoft, Workato, Boomi, Zapier, Experience Cloud, Salesforce Connect, Omni-Channel flow
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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
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
1mo
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Staff Search Engineer (US)
San Francisco or Los Angeles or New York City or Austin or London or Manila or Warsaw or United States
$150k-$188k/yr HybridFull Time
7+ YOE7+ years software development experience, 3+ years Elasticsearch experience, strong CS fundamentals, Go/Golang development, AWS familiarity, REST API and high-load systems experience, Git and CI/CD proficiency, English communication.
Go, Golang, TypeScript, Elasticsearch, AWS CloudWatch, AWS SQS, AWS Lambda, Java, MSSQL, AWS Redshift, Python, PHP, JavaScript, Node.js, Laravel, Symfony, Kubernetes, CI/CD, Git, REST API
1w
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Senior Staff Software Engineer
Beverly Hills or Vernon
OnsiteFull Time
10+ YOE10+ years software development experience; proficiency in Javascript, React, Node.js, REST/Web API, relational and NoSQL databases; strong analytical and communication skills; BA/BS or equivalent experience preferred.
Javascript, React, Node.js, REST, Web API, T-SQL, MS-SQL, POSTGRESQL, MYSQL, ORACLE, DynamoDB, Redis, JIRA, GIT, GITFLOW, Shopify
2mo
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Software Developer
Los Angeles, California, United States
$349k-$384k/yr RemoteFull Time
3+ YOEBachelor's in CS/related, 3 years experience, strong skills in JavaScript, React, HTML, CSS, TypeScript, CMS/Matrix, video playback optimization, PWA, API and infrastructure development.
JavaScript, React, HTML, CSS, TypeScript, Matrix, Progressive Web Apps (PWA)
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.Net Developer
Los Angeles, California, United States
$82k-$109k/yr OnsiteFull Time
Experience with ASP.NET, Web API, SQL Server 2022, HTML, jQuery, SSRS, Angular, MVC; bachelor's degree or equivalent experience; production support and Azure/SSIS preferred; US work authorization required.
ASP.NET, Web API, SQL Server 2022, HTML, jQuery, SSRS, Angular, .NET Framework, MVC, Microsoft SQL Server, Microsoft Azure, SSIS
3d
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OutSystems Developer
Bellevue or Dallas or Denver or New York City or Pasadena or Wichita
$100k-$130k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience; 3–5 years of software development experience with OutSystems, REST APIs, SQL, relational databases, HTML, CSS, and JavaScript. Agile and SDLC knowledge required.
OutSystems, OutSystems Service Studio, Integration Studio, REST APIs, API Connectors, SQL, HTML, CSS, JavaScript, Microsoft Azure, Microsoft SharePoint, Microsoft Power Apps, Microsoft Power Automate, Microsoft Power BI, Microsoft Dataverse, Microsoft 365, Microsoft Teams, Git, CI/CD
1mo
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Senior Software Engineer - Integrations
New York City or San Francisco or Los Angeles
$180k-$210k/yr HybridFull Time
5+ YOE5+ years backend software engineering experience; strong system design, data modeling, API development, and integrations experience. Comfortable with messy healthcare data and stakeholder collaboration. Python and healthcare integrations experience preferred.
SFTP, EDI, HL7, FHIR, ICD-10, CPT, Epic, Cerner, Python, APIs
1d
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Developer II - Application Development
Rancho Cucamonga, California, United States
$104k-$138k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field, 3+ years developing multi-tiered web applications, and experience across client-side, middle-tier, and back-end development.
AngularJS, C#, Java, WCF, Web API, JavaScript, jQuery, CSS, HTML, MVVM, MVC, Microsoft SQL Server, Oracle Database, MySQL, IIS, Form.io, Agile
3d
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Developer, Mobile
Los Angeles, California, United States
HybridFull Time
5+ YOERequires 5+ years of mobile development experience, native iOS or Android expertise, cross-platform frameworks, mobile architecture, API integration, prototyping, analytics, security, CI/CD, and a bachelor's degree or equivalent experience.
Swift, SwiftUI, Kotlin, React Native, Flutter, MVVM, MVC, Clean Architecture, Xcode, Android Studio, Firebase, Crashlytics, Core Data, Room, Realm, SQLite, Fastlane, Jenkins, GitHub Actions, AWS, Azure, Google Cloud, ARKit, ARCore
1d
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Developer II - Application Development
Rancho Cucamonga, California, United States
$104k-$138k/yr HybridFull Time
3+ YOERequires 3+ years developing multi-tiered web applications, client-side through back-end experience, and a bachelor's degree in computer science or related field. Healthcare experience preferred.
AngularJS, C#, Java, WCF, Web API, JavaScript, jQuery, CSS, HTML, MVVM, MVC, Microsoft SQL Server, Oracle, MySQL, IIS, Form.io
2mo
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Founding Product Engineer
San Francisco or Los Angeles or New York City
$190k-$210k/yr HybridFull Time
Proficiency with TypeScript (React) and Go, experience with PostgreSQL and Redis, familiarity with AWS, Terraform, and Docker, API development experience, and prior B2C product experience.
TypeScript, React, Go, PostgreSQL, Redis, AWS, Terraform, Docker, REST, GraphQL, Slack, Linear, GitHub, Figma
2mo
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Full-Stack Developer
Loma Linda, California, United States
$50-$67/hr HybridFull Time
3+ YOEBachelor's degree in CS or related field; 3+ years full-stack and Drupal development; HTML/CSS/JS; PHP; Drupal 10+; REST APIs; Git; CI/CD; Agile.
HTML, CSS, JavaScript, Drupal, PHP, MySQL, Git, RESTful APIs, Composer, NPM, Vite, Gulp, CI/CD, Drush
1mo
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Sr. Software Developer
Orange or Arizona or California or Florida or Maryland or Maine or Michigan or Missouri or North Carolina or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Texas or Utah or Washington or Wyoming
$120k-$145k/yr RemoteFull Time
7+ YOE7+ years professional software development with Microsoft .NET stack, experience with React/TypeScript, RESTful API design, Playwright, cloud deployments (AWS preferred), practical use of Claude or similar LLM agent tools, and demonstrated technical leadership.
ASP.NET WebForms, React, TypeScript, C#, .NET Web API, RESTful API, Claude, Redux Toolkit, Zustand, Playwright, CI/CD, Azure DevOps, AWS, ECS, Lambda, Step Functions, Bedrock, Azure, GCP
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Implementation Engineer
Buena Park, California, United States
$70k-$75k/yr OnsiteFull Time
Bachelor's in Computer Science/Information Systems, experience in software implementation/integration, proficiency with SQL, APIs, Python/TypeScript/Bash/PowerShell, cloud/web services knowledge, strong communication and problem-solving skills.
SQL, APIs, Python, TypeScript, Bash, PowerShell, Jira, Confluence, ITSM, New Relic, Grafana
5d
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Senior Fullstack Engineer
Los Angeles, California, United States
$170k/yr OnsiteFull Time
Full-stack experience with TypeScript, React, Node.js, Python, JavaScript, cloud infrastructure, databases, APIs, scalable systems, and production AI/ML or LLM applications.
TypeScript, React, Node.js, Python, JavaScript, Google Cloud, SQL, NoSQL, APIs, AI/ML, LLMs
2mo
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Senior Software Developer - Retail Technology & Platform Engineering
Hollywood, California, United States
$130k-$150k/yr OnsiteFull Time
5+ YOE5+ years software development; strong in C#/.NET and TypeScript/JavaScript or Python; REST APIs; Azure; production support.
C#, TypeScript, Python, REST APIs, Azure, SQL
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