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Senior Api Developer Jobs in Chicago, IL (NOW HIRING)

SysMind Tech

Java Full Stack/React Developer

Chicago, IL · On-site

$54 - $69.75/hr

NO remote "Looking for a Senior Developer to work, deploy, and manage web / API based applications who are passionate about tpersonir work and embraces tperson ideals of tperson software ...

Keylent Inc

Sr. Software Engineer TECHM-JOB-25341

Chicago, IL · On-site

$126K - $166K/yr

Keylent Inc is a company seeking a Sr. Software Engineer. The main purpose of the role is to ... Responsibilities : • API Engineer • Performance Optimization • Deployment strategies (like ...

RIT Solutions, Inc.

API Solutions Engineer

Chicago, IL · On-site

RIT Solutions, Inc. is seeking an API Solutions Engineer to facilitate API Platform onboarding and ... senior developer with Java and Kotlin. Preferred : • Proficiency in React and JavaScript. • ...

Tachyon Technologies

Java Multiple roles

Chicago, IL · On-site

$75 - $85/hr

Senior Java Developer Location: Chicago, IL Position Type: Contract Duration: 6 Months+ Looking for ... Java API Developer Duration: Long term Location: Minneapolis, MN Required Skills: â Passionate ...

Teamware Solutions

Kong Architect/Developer

Chicago, IL · On-site

We are looking for an experienced Kong Architect / Senior Developer to design, implement, and maintain our API gateway infrastructure. You will be the subject matter expert for Kong Gateway, driving ...

Syntricate Technologies

Sr Mulesoft Developer

Chicago, IL · On-site

$56.25 - $74.25/hr

Syntricate Technologies is seeking a Sr Mulesoft Developer to join their team in Chicago, IL ... The role requires extensive experience in MuleSoft development, focusing on secure API development ...

TEKsystems c/o Allegis Group

Sr. SAP Developer

Chicago, IL · On-site

$113K - $170K/yr

Description Job Overview We are seeking a Senior SAP Developer to play a key role in the hands-on ... OData/REST API integrations. SAP EWM, GTS, MDG exposure. Screen Personas and RF Framework ...

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Halo Group

Sr. Net Developer

Westchester, IL

$54.50 - $69.50/hr

This role is a Senior C# developer who stays current on modern technologies and innovations, and ... MVC, Web API, WCF, RESTful and front end technologies such as JavaScript, jQuery, JSON, HMLT5 ...

CAI

Senior Web Developer

Chicago, IL · Hybrid

Senior Web Developer Req number: R8092 Employment type: Full time Worksite flexibility: Hybrid Who ... Utilize tools such as SOAP UI and Postman for API development, testing, and validation * Translate ...

TEKsystems

Sr. SAP Developer

Chicago, IL

$113K - $170K/yr

Description Job Overview We are seeking a Senior SAP Developer to play a key role in the hands-on ... Up to 10% Skills Sap, Abap, fiori, btp, s/4 hana, Odata, rest api, SAP EWM, SAP GTS, SAP MDG Top ...

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SYSTEGRATION INC

Sr. Backend Java Developer

Chicago, IL · On-site

$124K - $161K/yr

... Notch/Expert Sr. Backend Java Developer for 100% Onsite Multi-Year Contract role in Chicago ... Experience writing API proxies on platforms such as Apigee Edge, AWS API Gateway or Azure API ...

SYSTEGRATION INC

Sr. Backend Java Developer

Chicago, IL · On-site

$124K - $161K/yr

... Notch/Expert Sr. Backend Java Developer for 100% Onsite Multi-Year Contract role in Chicago ... Experience writing API proxies on platforms such as Apigee Edge, AWS API Gateway or Azure API ...

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Senior Api Developer information

See Chicago, IL salary details

$15

$63

$90

How much do senior api developer jobs pay per hour?

As of Aug 29, 2026, the average hourly pay for senior api developer in Chicago, IL is $63.59, according to ZipRecruiter salary data. Most workers in this role earn between $53.99 and $71.30 per hour, depending on experience, location, and employer.

What is a senior API developer?

Senior API Developers are experienced software engineers who specialize in designing, building, and maintaining Application Programming Interfaces (APIs) that allow different software systems to communicate. They often lead technical projects, mentor junior developers, and ensure APIs are secure, scalable, and well-documented. Senior API Developers typically work with a variety of programming languages and frameworks, and collaborate closely with other teams to align API solutions with business goals.

What skills and qualifications are needed to thrive as a senior API developer?

To thrive as a Senior API Developer, you need advanced programming skills (often in languages such as Java, Python, or Node.js), deep understanding of API design principles, and experience with RESTful and/or GraphQL APIs, typically supported by a relevant degree or professional experience. Familiarity with API management tools (like Postman, Swagger, or Apigee), cloud platforms (such as AWS or Azure), and knowledge of authentication protocols (OAuth, JWT) are vital. Strong problem-solving abilities, effective communication, and leadership skills help in collaborating across teams and mentoring junior developers. These competencies ensure robust, scalable API solutions that meet business needs and integrate seamlessly with other systems.

How do senior API developers typically collaborate with product managers and frontend teams during the development process?

Senior API Developers play a key role in bridging backend systems with product and frontend teams. They work closely with product managers to interpret business requirements into technical specifications for APIs. Regular collaboration with frontend developers ensures that APIs are designed for usability, performance, and scalability, often involving code reviews, feedback sessions, and iterative testing. Effective communication and proactive problem-solving are essential to align API functionality with both business objectives and user experience.

What is the difference between Senior Api Developer vs API Engineer?

AspectSenior API DeveloperAPI Engineer
Required CredentialsBachelor's in CS or related, experience in API developmentBachelor's or higher in CS, software engineering, or related field
Work EnvironmentSoftware development teams, tech companies, startupsDevelopment teams, cloud services, enterprise environments
Employer & Industry UsageTech firms, SaaS providers, e-commerceCloud providers, enterprise software, API platforms
Common Search & ComparisonOften compared for API design and development rolesFocuses on API infrastructure and deployment

While both roles involve working with APIs, a Senior API Developer primarily designs, develops, and maintains APIs, focusing on functionality and integration. An API Engineer often emphasizes the infrastructure, deployment, and scalability of APIs within larger systems. Understanding these distinctions helps employers and professionals choose the right role for their needs.

Are senior API developers in demand?

Senior API developers are in high demand due to the increasing reliance on web services and integrations across industries. They are often required to have expertise in REST, SOAP, and API security, with many organizations seeking experienced professionals to build and maintain scalable, secure APIs. The demand is expected to grow as digital transformation accelerates and companies prioritize cloud-based solutions.

How much do senior API developers make?

Senior API developers typically earn between $100,000 and $150,000 annually, depending on experience, location, and industry. They often have expertise in RESTful APIs, programming languages like Java or Python, and may hold certifications that enhance their earning potential.

What are the most commonly searched types of Api Developer jobs in Chicago, IL?

The most popular types of Api Developer jobs in Chicago, IL are:

What are popular job titles related to Senior Api Developer jobs in Chicago, IL?

For Senior Api Developer jobs in Chicago, IL, the most frequently searched job titles are:

What job categories do people searching Senior Api Developer jobs in Chicago, IL look for?

The top searched job categories for Senior Api Developer jobs in Chicago, IL are:

What cities near Chicago, IL are hiring for Senior Api Developer jobs?

Cities near Chicago, IL with the most Senior Api Developer job openings:

Senior Api Developer jobs near you
Infographic showing various Senior Api Developer job openings in Chicago, IL as of August 2026, with employment types broken down into 79% Full Time, 8% Part Time, 12% Contract, and 1% Nights. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $132,270 per year, or $63.6 per hour.

Sr. API Developer to work with MuleSoft or Azure platform

Schaumburg, IL • On-site

Ruri Software Technologies LLC
Software Development • 11 - 50 employees
Learn more about Ruri Software Technologies LLCexternal

$53.25 - $70.25/hr

Full-time

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

Job description

Job Title: Sr. API Developer to work with MuleSoft or Azure platform
Work Location: Schaumburg, IL
Duration: 6 Months
Job Description:
Sr. API Developer to work with MuleSoft or Azure platform components such as application program interface (API) Manager, Runtime Manager, Cloud Hub components, and Any Point Studio to successfully integrate Zurich's set of routines, protocols, and tools for building software applications into other applications.
Specific duties include:
• Working closely with the Business, other application teams and the Integration Architect to understand Zurich's business/application needs.
• Creating and Supporting APIs for mobile applications
• Understanding Business Requirements, performing impact analysis and assessing technical challenges/feasibility in achieving required business outcome
• developing APIs using MuleSoft platform components including API Manager, Cloud Hub, Anypoint Studio and Anypoint MQ
• testing and improving performance of the APIs in terms of response time, reliability and resource usage
• Troubleshooting complex production issues with APIs, identifying source of the issue and fixing/working with the appropriate team to get the issue fixed
• Serve as technical lead on projects to design, develop, test, document, and deploy robust integration solutions on the MuleSoft platform.
Basic Qualifications:
• Bachelor's Degree and 7 or more years of experience in the Application Design and Development area
OR
• High School Diploma or Equivalent and 9 or more years of experience in the Application Design and Development area
Preferred Qualifications:
• MuleSoft Developer certification is preferred
• 4 years of experience working with:
o MuleSoft API development and cloud hub and RTF environments.
o service design using RAML (with JSON) and ODATA
o Azure API development experience preferred
o Integration Architecture concepts, principles, and patterns to design API, Service Oriented Architecture, Batch Integration, and RESTful JSON services
o cloud-based technologies and integration to technologies hosted in Azure
• Strong problem solving and analytical skills
• Strong verbal and written communication skills
• Ability to handle multiple priorities on the team

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