ZipRecruiter

Log In

1

Web Api Developer Jobs in California (NOW HIRING)

Purple Drive

Azure API Developer

San Francisco, CA · On-site

$64.75 - $80.50/hr

Azure API Developer Location: Onsite - San Francisco, CA / San Ramon, CA Experience Required: 10+ ... Build and maintain RESTful APIs using C#, .NET Core, ASP.NET, Web API , and modern authentication ...

Purple Drive Technologies

Azure API Developer

San Francisco, CA · On-site

$64.75 - $80.50/hr

Azure API Developer Location: Onsite - San Francisco, CA / San Ramon, CA Experience Required: 10+ ... Build and maintain RESTful APIs using C#, .NET Core, ASP.NET, Web API , and modern authentication ...

Pyramid Consulting

Senior .NET Core API Developer

Brea, CA · On-site

$56.50 - $74.50/hr

Experience with design and implementation of APIs (Web API, REST, JSON, etc.) * Experience with CI/CD with Jenkins * Familiarity with the ASP.NET framework, SQL Server and design/architectural ...

Staffingine LLC

IBM API Developer

Torrance, CA · On-site

Web Service Proxy * XML Firewall * Implement API security mechanisms including: * OAuth 2.0 * JWT ... Collaborate with DevOps teams to automate deployments using CI/CD pipelines * Ensure compliance ...

Staffingine LLC

IBM API Developer

Torrance, CA · On-site

Web Service Proxy * XML Firewall * Implement API security mechanisms including: * OAuth 2.0 * JWT * API Keys * Mutual TLS * Develop custom logic using: * XSLT * GatewayScript (JavaScript) * Create ...

Saxon Global

API Developer

San Francisco, CA · On-site

Company Description 5-10 Years of Web Services Development experience Experience with developing REST API using Java/Spring/Tomcat Strong understanding of RESTful JSON web API design principles ...

VBeyond

IBM API Developer (APIConnect)

Torrance, CA · On-site

Web Service Proxy * XML Firewall * Implement API security mechanisms including: * OAuth 2.0 * JWT ... Collaborate with DevOps teams to automate deployments using CI/CD pipelines * Ensure compliance ...

Jobsbridge

Dot Net Web Developer

Los Angeles, CA · On-site

HTML5, JSON, WCF, MVC 4/5.0, Angular JS, WEB API SOA, Enterprise design pattern Stream processing systems, In-memory databases SQL SERVER 2012 R2 Experience working cross-functionally and with a ...

Jobsbridge

Dot Net Web Developer

San Diego, CA

HTML5, JSON, WCF, MVC 4/5.0, Angular JS, WEB API SOA, Enterprise design pattern Stream processing systems, In-memory databases SQL SERVER 2012 R2 Experience working cross-functionally and with a ...

Husch Blackwell Llp

Checkmate API Developer

Oakland, CA · On-site +1

Checkmate API Developer. Husch Blackwell LLP. St. Louis, Missouri. Responsible for maintaining ... Demonstrated experience with Microsoft Azure Web Apps, Api Apps, and Logic apps. Send résumés to ...

360 IT Professionals

Java API Developer

San Jose, CA

$59.75 - $77.25/hr

Java API Developer Location : San Jose, CA - Local only Duration: 6 Months Type: W2 - Contract ... XML, web services (REST, SOAP) RESTful API design and implementation experience Well-versed in ...

next page

Showing results 1-20

People also search for

All JobsWeb Api Developer JobsWeb Api Developer Jobs in California

Web Api Developer information

See California salary details

$16

$44

$71

How much do web api developer jobs pay per hour?

As of May 28, 2026, the average hourly pay for web api developer in California is $44.53, according to ZipRecruiter salary data. Most workers in this role earn between $34.18 and $53.85 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Web API Developer, and why are they important?

To thrive as a Web API Developer, you need strong programming skills in languages such as JavaScript, Python, or C#, along with a solid understanding of RESTful principles and API design best practices. Familiarity with frameworks like Node.js or .NET, experience using tools like Postman, and knowledge of authentication protocols (e.g., OAuth) are typically required. Excellent problem-solving, communication, and collaboration skills help developers work effectively with cross-functional teams and address integration challenges. These competencies are vital for building robust, scalable APIs that enable reliable data exchange and power modern web and mobile applications.

What are some common challenges Web API Developers face when working on large-scale applications?

Web API Developers working on large-scale applications often encounter challenges such as ensuring consistent API versioning, maintaining backward compatibility, and optimizing performance for high traffic. Security is another major concern, requiring careful implementation of authentication and authorization. Additionally, collaborating with front-end teams and other backend services demands clear documentation and robust communication to align on data contracts and integration points.

What are Web API Developers?

Web API Developers are software professionals who design, build, and maintain application programming interfaces (APIs) for web-based systems. They enable different software applications to communicate with each other over the internet by creating secure, scalable, and efficient endpoints. Web API Developers typically use technologies such as REST, HTTP, JSON, and frameworks like Node.js, .NET, or Django to build APIs. Their work is essential for enabling front-end applications, mobile apps, or third-party services to interact with back-end systems.

What is the difference between Web Api Developer vs Backend Developer?

AspectWeb Api DeveloperBackend Developer
Required SkillsAPI design, RESTful services, programming languages (e.g., Java, Python)Server-side logic, database management, programming languages (e.g., Java, Python, PHP)
Work EnvironmentDeveloping and maintaining APIs, often collaborating with frontend teamsBuilding server-side applications, managing databases, and integrating systems
Industry UsageWeb services, SaaS, mobile app backendsWeb applications, enterprise systems, software solutions

Web Api Developers focus primarily on designing and implementing APIs that enable communication between different software systems. Backend Developers work on the server-side logic, database management, and overall application architecture. While both roles require programming skills and often overlap, Web Api Developers specialize in API endpoints and integrations, whereas Backend Developers handle broader server-side development tasks.

What are popular job titles related to Web Api Developer jobs in California? For Web Api Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Web Api Developer jobs in California look for? The top searched job categories for Web Api Developer jobs in California are:
Web Api Developer jobs near you
Infographic showing various Web Api Developer job openings in California as of May 2026, with employment types broken down into 78% Full Time, 2% Part Time, and 20% Contract. Highlights an 76% Physical, 7% Hybrid, and 17% Remote job distribution, with an average salary of $92,619 per year, or $44.5 per hour.

Azure API Developer

Purple Drive

San Francisco, CA • On-site

$64.75 - $80.50/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Overview:
Job Title: Azure API Developer
Location: Onsite - San Francisco, CA / San Ramon, CA
Experience Required: 10+ Years
Employment Type: Contract
Role Overview
We are seeking a senior Azure API Developer to design, modernize, and support enterprise applications on Microsoft Azure. This role requires deep hands-on expertise in .NET technologies, API development, and Azure-native services, with a strong focus on modernizing legacy applications into scalable, cloud-native microservices.
The ideal candidate will also act as a technical subject-matter expert, collaborate closely with stakeholders, and ensure high performance, security, and reliability of customer-facing platforms.
Key Responsibilities
Cloud-Native & API Development
  • Design and develop cloud-native applications using Azure Kubernetes Service (AKS), Azure App Services, and Azure Functions.
  • Build and maintain RESTful APIs using C#, .NET Core, ASP.NET, Web API, and modern authentication standards.
  • Implement secure APIs using OAuth 2.0, JWT, and industry best practices.
Legacy Modernization
  • Maintain and enhance legacy applications built on Angular, C#, .NET Core, MVC, ASP.NET, and ASP.NET WebForms.
  • Lead efforts to modernize legacy .NET applications into microservices architectures deployed on AKS or Azure App Services.
Application Development & Support
  • Develop and support applications using Angular, jQuery, LINQ, Entity Framework, Web Services, and REST APIs.
  • Ensure clean, maintainable, and scalable code aligned with enterprise standards.
Monitoring, Performance & Reliability
  • Configure and monitor application performance using Azure Monitor, Application Insights, or similar monitoring tools.
  • Identify and resolve performance bottlenecks, availability issues, and security risks.
Domain Expertise & Stakeholder Management
  • Act as a Subject Matter Expert (SME) for Asset Management / Technology Platforms.
  • Manage stakeholder expectations, including senior leadership and key decision-makers.
  • Communicate effectively across technical and business teams.
Required Skills & Qualifications
  • 10+ years of professional experience in .NET application development and API engineering.
  • Strong expertise in C#, .NET Core, ASP.NET, MVC, Web API, and RESTful services.
  • Hands-on experience with Azure services, including AKS, App Services, Azure Functions, and Azure Monitoring.
  • Proven experience modernizing legacy .NET applications to cloud-native microservices.
  • Strong knowledge of OAuth 2.0, JWT, and API security best practices.
  • Experience with Angular and frontend-backend integration.
  • Strong understanding of Entity Framework, LINQ, and relational databases (SQL Server preferred).
  • Excellent communication skills and ability to work with senior stakeholders.
Key Competencies
  • Strong technical ownership and problem-solving skills
  • Ability to influence and collaborate across teams
  • Quality- and performance-focused engineering mindset
  • Adaptability in complex enterprise environments
Technical Skills
Microsoft Azure | AKS | Azure App Services | Azure Functions | C# | .NET Core | ASP.NET | MVC | REST APIs | OAuth2 | JWT | Angular | Entity Framework | SQL Server | Microservices

Apply