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Web Api Developer Jobs in California (NOW HIRING)

Volto USA

Slack Integration Developer

San Diego, CA · On-site

Slack Integration Developer Helping stand up Slack Enterprise Grid for the first time and establish ... Design and build custom Slack apps and bots using Slack APIs (Events API| Web API| Bolt framework)

Atria Group LLC

Dot Net Developer

Concord, CA

$53 - $70/hr

Our company provides application analysis, design, development and programming, software ... Web API * LINQ * WCF * C#.Net * Rest or SOAP * SOA architecture knowledge * JavaScript/JQuery ...

Jobsbridge

.Net Developer

San Diego, CA

$51.25 - $67.75/hr

Net, LINQ, Entity F/W AJAX/JQuery/JQuery Mobile Xamarin / Mobile frameworks WCF, Web Api, Web Svcs ... Mentor other junior developers of the team with hands-on development work in high-pressure and time ...

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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 Aug 7, 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 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.

Are Web API developers in demand?

Web API developers are in high demand due to the increasing reliance on web services and cloud-based applications. Skills in REST, SOAP, and programming languages like JavaScript, Python, or C# enhance job prospects, and many organizations seek professionals to build, maintain, and optimize APIs for integration and scalability.

What are the key skills and qualifications needed to thrive as a web API developer?

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 is a web API developer?

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.

How much does a Web API developer make?

The average salary for a Web API developer varies by experience and location but typically ranges from $70,000 to $120,000 annually. Skilled developers with knowledge of REST, JSON, and programming languages like C# or Java often earn higher salaries, especially with certifications or experience in cloud environments.

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.
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Web Api Developer jobs near you
Infographic showing various Web Api Developer job openings in California as of August 2026, with employment types broken down into 1% Internship, 78% Full Time, 13% Part Time, and 8% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $92,619 per year, or $44.5 per hour.

.NET Full Stack Developer

West Advanced Technologies (WATI)

Rancho Cordova, CA • On-site

Full-time

Re-posted 6 days ago

Job description

.NET Full Stack Developer
Rancho Cordova, CA
9+ months
In-person interview - Onsite Role
Required skills:
Experience in C# & .NET development as well as .NET Web API
Writing SQL queries (We use SQL server RDMS for our applications, have many batch processes that use SQL queries) Desirable / nice to have:
JavaScript/Typescript experience (Knowledge of this would allow contractor to help with development of various other applications such as WM, SHINE, etc.)
Angular Framework experience (Knowledge of this would allow contractor to help with development of various other applications such as WM, SHINE, etc.)
Familiar with MVC design pattern
Familiar with Entity Framework & LINQ queries
Projects include working on .NET MVC web application written in C#, creating/updating stored procedures, batch processes, and SSIS packages.
Regards
Naresh Damagalla
West Advanced Technologies, Inc
E: naresh.d@wati.com

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