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Senior Api Developer Jobs in Wisconsin (NOW HIRING)

Profectus IT BVBA

WI · On-site

$80 - $120/hr

Solid experience with Angular (preferably Angular 10+). * Good understanding of RESTful API design ... Knowledge of CI/CD pipelines and DevOps practices is a plus. Preferred Skills * Experience with ...

Alto Pharmacy

WI · On-site

$182 - $228/hr

As the Senior Manager of Engineering at Fuze Health/FuzeRx, you are a pivotal leader within our ... and API-driven fulfillment platforms. By fostering a culture of operational excellence and ...

Harris

$125K - $135K/yr

MVVM, The Composable Architecture) and dependency injection frameworks such as Koin. - RESTful API ... GitHub Copilot, Claude, Cursor or ChatGPT) - Familiarity with AI directed prompt engineering for ...

Harris

$125K - $135K/yr

MVVM, The Composable Architecture) and dependency injection frameworks such as Koin. - RESTful API ... GitHub Copilot, Claude, Cursor or ChatGPT) - Familiarity with AI directed prompt engineering for ...

TiTANS Consulting

WI · On-site

$62.80 - $85.64/hr

Integreren van AI-modellen via API's binnen bestaande en nieuwe toepassingen. * Ontwikkelen van ... Multimodale AI-toepassingen (beeld + tekst, video + tekst...) Je bent een senior ontwikkelaar met ...

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Komatsu

Senior ServiceNow Developer

Milwaukee, WI · On-site

$140K - $150K/yr

Senior ServiceNow Developer Posting Start Date: 8/26/26 Job Location (Short): Milwaukee, Wisconsin ... API, SOAP, MID Server, JDBC, Integration Hub spokes, and Plug-ins/Store apps. • Excellent ...

Findhelp

Senior Staff Quality Engineer

Madison, WI · On-site

$89K - $121K/yr

As a Senior Quality Engineer, you'll play a crucial role in embedding quality throughout the ... API endpoints and microservices. • Champion and implement novel approaches to quality advocacy ...

Findhelp

Senior Staff Quality Engineer

Madison, WI · On-site

$89K - $120K/yr

As a Senior Quality Engineer at Findhelp, you'll be a pivotal member of our agile application teams ... Extensive experience with API test automation, including proficiency in tools and techniques for ...

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All JobsApi Developer JobsSenior Api Developer JobsSenior Api Developer Jobs in Wisconsin

Senior Api Developer information

See Wisconsin salary details

$15

$62

$88

How much do senior api developer jobs pay per hour?

As of Sep 3, 2026, the average hourly pay for senior api developer in Wisconsin is $62.31, according to ZipRecruiter salary data. Most workers in this role earn between $52.88 and $69.86 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 Wisconsin?

The most popular types of Api Developer jobs in Wisconsin are:

What are popular job titles related to Senior Api Developer jobs in Wisconsin?

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

What job categories do people searching Senior Api Developer jobs in Wisconsin look for?

The top searched job categories for Senior Api Developer jobs in Wisconsin are:

What cities in Wisconsin are hiring for Senior Api Developer jobs?

Cities in Wisconsin with the most Senior Api Developer job openings:

Senior Api Developer jobs near you
Infographic showing various Senior Api Developer job openings in Wisconsin as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $129,601 per year, or $62.3 per hour.

Senior Java Developer

Profectus IT BVBA

WI • On-site

$80 - $120/hr

Other

Posted 29 days ago

Job description

We are currently seeking an experienced Java Spring Developer with strong Angular expertise to join our growing team. This role is ideal for someone who is passionate about building scalable backend systems while also contributing to modern, responsive front-end applications.

Key Responsibilities
  • Design, develop, and maintain enterprise‑grade applications using Java (Spring Boot).
  • Build and enhance front‑end interfaces using Angular.
  • Develop RESTful APIs and integrate third‑party services.
  • Collaborate with cross‑functional teams to define, design, and ship new features.
  • Ensure code quality through testing, code reviews, and best practices.
  • Participate in architecture and technical decision‑making.
Required Qualifications
  • Strong experience with Java and Spring Framework (Spring Boot, Spring MVC).
  • Solid experience with Angular (preferably Angular 10+).
  • Good understanding of RESTful API design and microservices architecture.
  • Experience with relational databases (e.g., PostgreSQL, MySQL).
  • Familiarity with version control systems (Git).
  • Knowledge of CI/CD pipelines and DevOps practices is a plus.
Preferred Skills
  • Experience with cloud platforms (AWS, Azure, or GCP).
  • Familiarity with containerization tools such as Docker.
  • Understanding of Agile/Scrum methodologies.

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