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Senior Api Developer Jobs in Wisconsin (NOW HIRING)

boelter

Sr. MuleSoft Developer

Pewaukee, WI · Remote

Senior MuleSoft Developer / Integration Lead Location: Remote Overview Boelter is modernizing its ... Design and build API-led integrations (system / process / experience layers) across S/4HANA, SAP ...

Hispanic Alliance for Career Enhancement

WI · On-site

$144.20 - $288.40/hr

Our platform spans an internal and external developer portal, an API catalog that drives discovery ... This is a senior, cross-cutting role with significant organizational influence. You will establish ...

Komatsu

Sr. SAP Developer

Milwaukee, WI · On-site

$140K/yr

Apply now Sr. SAP Developer Posting Start Date: 1/23/26 Job Location (Short): Chicago, Illinois ... Proficiency in OData/RESTful API communication and system integrations. * Hands-on experience in ...

Socket.dev

WI · On-site

$170 - $210/hr

The role aligns to Asurion's Senior Staff expectations for cross-team API design, domain data ... Mentor engineers and raise engineering standards across teams. Required Qualifications 10+ years of ...

New

Coding Strategies, Inc.

WI · On-site

$140 - $180/hr

This role sets integration and API standards, designs data pipelines, and governs integration ... The Senior Integration & Platform Engineering Lead serves as the internal platform steward whose ...

Cliftonlarsonallen

Senior Back-End Developer

Milwaukee, WI · On-site

$118K - $154K/yr

CLA is growing and seeking to hire an experienced Senior Back-End Developer to join our talented ... Azure API Management (APIM) * Azure Event Grid * Apache Spark #LI-DJ1 Equal Opportunity Employer ...

Fiserv, Inc.

Senior DevOps Engineer

Milwaukee, WI · On-site

$128K - $164K/yr

Senior DevOps Engineer EMPLOYER: Fiserv Solutions, LLC LOCATION: Milwaukee, WI (and various ... Working with Swagger and Postman API frameworks; Working with PostgreSQL and pgAdmin; and ...

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Senior Api Developer information

See Wisconsin salary details

$15

$62

$88

How much do senior api developer jobs pay per hour?

As of Aug 10, 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 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.

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.

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 RESTful and GraphQL APIs, programming languages like Java or Python, and experience with cloud platforms, making their skills highly sought after in the job market.

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 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 API Systems Engineer (TS/SCI) - On-Site & Cloud

A&M Technologies, Inc.

Wausau, WI • On-site

$112K - $153K/yr

Full-time

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

Job description

A&M Technologies, Inc. is seeking a senior software/security engineer with TS/SCI w/ CI Poly, on-site in Wisconsin. Candidates must have Sec+ or better and at least 10 years of relevant experience in cloud architectures, API gateways, and secure software design. Responsibilities include implementing API gateway solutions, cloud services integration (AWS/Azure/GCP), containerization with Docker and Kubernetes, and strong documentation. #J-18808-Ljbffr

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