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Senior Api Developer Jobs in Wisconsin (NOW HIRING)

Komatsu

Senior ServiceNow Developer

Milwaukee, WI · On-site

$140K - $150K/yr

Apply now Senior ServiceNow Developer Posting Start Date: 7/16/26 Job Location (Short): Chicago ... Experience with ServiceNow integration technologies such as REST API, SOAP, MID Server, JDBC ...

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 ...

Technoidentity

WI · On-site

$140 - $190/hr

The work spans Python services, React front-ends, API and enterprise integrations, and Temporal ... Some engineers in this role will be evaluated against the client's own senior engineering standards ...

Findhelp

Senior Staff Quality Engineer

Madison, WI · On-site

$89K - $121K/yr

As a Senior Quality Engineer, you will be responsible for embedding quality throughout the Software ... API endpoints and microservices. • Champion and implement novel approaches to quality advocacy ...

Technoviz LLC

Java Developer III

Madison, WI · On-site

$55/hr

We are seeking a highly skilled and experienced Senior Java Developer with strong hands-on ... API using Spring Boot and OpenAPI · Practical knowledge of, and experience with, various ...

Trustwise

WI · On-site

$153 - $187/hr

Senior Software Engineer in Austin, TX. About Trustwise: At Trustwise, we are deeply committed to ... REST API design and development, NoSQL database; * Technical leadership and product engineering;

KOHLS

Senior MLOps Engineer (Remote)

Menomonee Falls, WI · On-site

$104K - $144K/yr

Experience in MLOps or DevOps practices, including building and operating production ML systems ... API development, model serving (batch and real-time), and automated testing frameworks * Bachelor ...

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Senior Api Developer information

See Wisconsin salary details

$15

$62

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How much do senior api developer jobs pay per hour?

As of Aug 11, 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 ServiceNow Developer

Komatsu

Milwaukee, WI • On-site

$140K - $150K/yr

Other

Posted 24 days ago

Komatsu rating

8.5

Company rating: 8.5 out of 10

Based on 78 frontline employees who took The Breakroom Quiz

80th of 487 rated machine equipment manufacturers

Job description

Job Description
Apply now
Senior ServiceNow Developer
Posting Start Date: 7/16/26
Job Location (Short): Chicago, Illinois, USA, 60631 | Milwaukee, Wisconsin, USA, 53204-2941
Requisition ID: 36434
Onsite or Remote: Onsite Position

Join Komatsu and Be Part of Something Big!

Job Overview

The Senior ServiceNow Developer is a transformational position with the ServiceNow platform team, designing, developing, configuring, troubleshooting, and implementing ServiceNow applications & services. You are helping to transform many enterprise processes using data, automation, design thinking, and streamlined workflows. This role is part of our pro-code development team, which helps deliver new functionality across platform and ITSM, HRSD, and SPM applications, supports entire development lifecycle, and promotes the reusable data model.

Key Job Responsibilities

Solution Design: Collaborate with partners to gather requirements, analyze business processes, and translate them into technical solutions that leverage the capabilities of the ServiceNow platform.
Development: Develop ServiceNow software solutions using JavaScript, GlideScript, Jelly, AJAX, JSON, AngularJS, Web Services, MySQL, XML, HTML, and CSS. Adhere to best practices for out-of-the-box configurations and customizations as guided by the Platform Architect.
Delivery: Employ various delivery methodologies including Waterfall, Kanban, and Agile aligned with SDLC practices and product management release cycles. Work from a prioritized backlog within an Agile team, participating in two-week sprints as part of a planning increment.
Integrations: Design and implement integrations between ServiceNow and other enterprise systems, ensuring seamless data flow and interoperability through APIs, Workflow Data Fabric, Integration Hub, and other integration techniques.
Performance Optimization: Execute performance enhancements, scalability improvements, and elevate the overall user experience on the ServiceNow platform.
Governance & Compliance: Maintain adherence to security standards, regulatory requirements, and industry best practices across all aspects of ServiceNow platform implementation and usage.
Documentation & Training: Develop comprehensive technical documentation, including architectural diagrams, design specifications, and user guides. Facilitate training sessions for partners and end users as necessary.
Continuous Improvement: Stay informed about the latest trends, features, and capabilities of the ServiceNow platform. Proactively identify opportunities for process enhancements and innovation, such as refactoring existing functionalities to increase value.

Qualifications/Requirements

Required Skills
* Bachelor's degree in Information Technology, Computer Science, or related field or equivalent.
* 5+ years ServiceNow Platform experience including systems administration, scripting, and development; current release on Yokohama or Zurich.
* Proficiency in JavaScript, XML, HTML, CSS, ServiceNow scripting (Business Rules, Script Includes, Client Scripts, UI Policies, UI Actions) and other relevant technologies used in ServiceNow development (Flow Designer, orchestration, MID Servers, Scoped & Global Applications, CMDB/CSDM understanding).
* Ability to communicate with stakeholders and users at multiple levels.
* Ability to understand use cases, personas and create solutions that are fit for use and purpose.
* Ability to learn and grow, staying current with technology and emerging trends. Acting as a mentor to junior team members.
* Experience with ServiceNow integration technologies such as REST API, SOAP, MID Server, JDBC, Integration Hub spokes, and Plug-ins/Store apps.
* Excellent analytical and problem-solving abilities.
* Strong understanding of ITIL processes, ITIL v4/5 foundational certified (or obtained within first 3 months of employment).
* Active ServiceNow Certified System Administrator (CSA) and Certified Application Developer (CAD) is required (or obtained within first 3 months of employment).

Additional Information

Preferred Skills

* Advanced ServiceNow certifications, including CIS in one or more product lines (ITSM or SPM) or ArchX.
* Governance and performance tuning best practices
* DevOps practices / CI-CD pipelines, including Source control (Git)
* Experience administrating and utilizing App Engine Studio and UI Builder
* Data modeling & table design

Hiring Range

At Komatsu, your base pay is one part of your total compensation package. This role pays $$140,000-$150,000. The actual offer will consider a wide range of factors, including experience and location.

Diversity & Inclusion Commitment

At Komatsu we come from diverse backgrounds, with unique perspectives, experiences, and contributions.We are committed to creating a workforce that is reflective of the communities we work and live in. We believe that our people are part of our shared purpose.We are authentic, ambitious, and innovative in our pursuit of Diversity & Inclusion.United, we are on a journey towards a sustainable future that creates value together.

Company Information

Komatsu is a world leader in manufacturing construction, mining, forestry, and industrial heavy equipment.Founded in 1921, Komatsu has a long history of quality, reliability, innovation, and excellence.Headquartered in Tokyo, Japan, Komatsu facilities, distributors and dealers are in more than 140 countries and employ more than 60,000 people.Komatsu offers a diverse and challenging work environment, where you can grow your skills and career, and contribute to a sustainable, clean-energy future.If you are looking for a company that values your talent and potential, be a part of something big and join a team that is shaping the world!

If you want to learn more about Komatsu, please visit our website at https://www.komatsu.com/

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