154 api developer jobs at 91 companies in Crestline, 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
1mo
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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
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
1d
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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
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Software Developer (Salesforce)
Irvine, California, United States
$100k-$155k/yr HybridFull Time
5+ YOE5–7 years Salesforce development experience; strong Apex, Flow, Salesforce customization, integrations, APIs, asynchronous processing, and CI/CD; bachelor\u0002s degree preferred.
Salesforce, Apex, Flow, APIs, CI/CD
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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
3d
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Information Systems Developer
Irvine, California, United States
$90k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience, 3+ years in software development or systems integration, programming experience, APIs, workflow automation, relational databases, and strong analytical and communication skills.
SQL, JavaScript, Python, Microsoft Power Automate, APIs, HRIS, CRM, relational databases
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Staff Engineer I - Software Engineer
Westlake Village or Irvine or Dallas
$122k-$151k/yr OnsiteFull Time
5+ YOE5+ years software development experience; Bachelor's degree required; proficiency with TypeScript, React, Angular, REST API, Azure/AWS and Azure DevOps; leadership experience, financial services and regulatory knowledge; up to 10% travel.
React, Angular, TypeScript, HTML, CSS, REST API, Azure, AWS, Azure DevOps
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Software Developer (Salesforce)
Irvine, California, United States
$100k-$155k/yr HybridFull Time
5+ YOE5–7 years Salesforce development experience; strong Apex, Flow, Salesforce customization, integrations, APIs, and CI/CD knowledge; preferred Salesforce certifications and Financial/Automotive Cloud experience; bachelor's degree preferred.
Apex, Flow, Salesforce, Financial Services Cloud, Automotive Cloud, APIs, CI/CD
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
22h
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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
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Salesforce Developer
Irvine, California, United States
$130k-$150k/yr HybridFull Time
4+ YOEBachelor's or equivalent,4+ years Salesforce development experience,APEX,LWC,Flows,Visualforce,integrations,REST APIs,Git and Salesforce CLI,JavaScript/Jest,ability to work in Irvine office twice weekly.
Salesforce.com, Force.com, Apex, LWC, Flows, Visualforce, Lightning Component Framework, RESTful services, Git, Salesforce CLI, JavaScript, Jest, Frontier model APIs
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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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
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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
3w
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Senior Software Engineer (MCP Servers)
Irvine or Dallas
$129k-$160k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience,5+ years software development,proficiency in Python,JavaScript/Node.js,Java,API and AI integration experience with MCP and Apigee X,API security and CI/CD experience.
MCP, Apigee X, Apigee XT, MCP Inspector, Python, JavaScript, Node.js, Java, HTTP, gRPC, WebSocket, OAuth, JSON Web Tokens (JWT), Spike Arrest, OpenAPI, Jenkins, Git, Maven, Apigee Analytics, Google Authentication
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Full Stack Senior Software Engineer (Remote in CA)
Santa Ana or California
$129k-$172k/yr RemoteFull Time
5+ YOE5+ years software development with Python and cloud-native Azure experience, React/TypeScript web development, REST APIs, relational databases, AI/LLM integration, Docker/Kubernetes, CI/CD, and a bachelor's in CS or equivalent.
Python, Azure (App Services, Functions, Azure OpenAI, AI Services), React, JavaScript/TypeScript, REST API, PostgreSQL, MySQL, SQL Server, MongoDB, Cosmos DB, LLMs, RAG, AI APIs, Docker, Kubernetes, Linux, Windows, Azure, Git, GitLab, GitHub, Azure DevOps, NPM Package Management, CI/CD Pipelines
3mo
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Software Engineer II
City of Industry, California, United States
$90k-$130k/yr OnsiteFull Time
3+ YOEBachelor's in computer engineering or computer science; 3-5 years Linux, API development/integration; experience with C, Go, Node.js, Python; production Linux experience; manufacturing/tech product development preferred.
Kubernetes, Docker, Puppet, Chef, Ansible, GitLab, Jira, Azure DevOps, PostgreSQL, JSON, HTML, C, Go, Node.js, Python, Linux
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Software Engineer - AI
Irvine, California, United States
$99k-$158k/yr HybridFull Time
3+ YOEBachelor's degree and 3+ years experience. Strong Python required; proficiency in Java or .NET (C#). Experience with LLMs, agent development, RAG, vector databases, cloud platforms, data processing, and APIs.
Python, Java, .NET, C#, Agent Development Kit (ADK), LangChain, NumPy, Pandas, Scikit-learn, NLTK, SpaCy, PostgreSQL, pgvector, Pinecone, Weaviate, ChromaDB, Google Cloud Platform (GCP), Amazon Web Services (AWS), Microsoft Azure (Azure), ReactJS, OpenAI, Google DeepMind, Anthropic, MCP (Model Context Protocol), LangGraph, CrewAI, Semantic Kernel, AutoGen, Docker, Kubernetes, REST APIs, JSON, XML, CI/CD
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LoopNet - Senior Software Engineer
Irvine, California, United States
$124k-$187k/yr HybridFull Time
7+ YOE7+ years production C#/.NET development, bachelor's degree, experience building APIs/backends, testing, cloud (AWS) experience, mentoring, and familiarity with AI coding tools.
C#, .NET, .NET Core, Claude Code, GitHub Copilot, Vue.js, React, TypeScript, Microsoft SQL, MySQL, AWS S3, SQS, DynamoDB, ElastiCache, Apache Kafka, Datadog, Docker, Kubernetes, CI/CD, BigQuery, Databricks, Snowflake, Python
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