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Api Engineer Jobs in Wisconsin (NOW HIRING)

Apex Systems

Senior Security Engineer

Appleton, WI · On-site

$100 - $130/hr

## # Senior Security Engineer* Help evaluate, implement, configure, and operationalize a DAST/Web ... Develop API-based integrations and custom workflows to aggregate vulnerability data* Assist in ...

API Heat Transfer

Aluminum MIG & TIG Welder

Racine, WI · On-site

$19.75 - $25.75/hr

... engineering expertise with a drive to solve complex challenges--consistently delivering the right solutions for our customers. API Heat Transfer is looking for people who enjoy being part of ...

Modern Family Law

WI · On-site

$120 - $180/hr

TheAI Workflow Engineer / Automation Architect will work closely with AI leadership, product teams ... Implement API integrations across third‑party platforms and internal systems. * Develop retrieval ...

New

Northwestern Mutual

Software Engineer II

Milwaukee, WI · On-site

$98 - $170/hr

About the Role Northwestern Mutual is seeking a Software Engineer II to join the API Enablement team within Digital Platform. This team plays a unique role across the enterprise by helping ...

General Motors

WI · On-site

$202 - $310/hr

Deliver comprehensive technical documentation, API specifications, blueprint repositories, and operational runbooks with all deployed code.* Lead rigorous code reviews for peer engineering levels to ...

New

API Heat Transfer

1st Shift Steel Welder

Racine, WI

$18.50 - $22.50/hr

... engineering expertise with a drive to solve complex challenges--consistently delivering the right solutions for our customers. API Heat Transfer is looking for people who enjoy being part of ...

DTN (Data Transmission Network)

WI · On-site

$120 - $145/hr

Advanced Python development skills for API, web, and data engineering applications. * Strong experience with ETL processes, SQL development, and data transformation methodologies. * Expert‑level ...

New

Forcepoint

WI · On-site

$160 - $195/hr

Architect and lead complex REST API integration engagements across SIEMs, SOAR platforms, identity providers, and cloud‑native services; provide technical mentorship to junior engineers on API and ...

Francisco Partners

WI · On-site

$160 - $195/hr

Architect and lead complex REST API integration engagements across SIEMs, SOAR platforms, identity providers, and cloud-native services; provide technical mentorship to junior engineers on API and ...

Peepel

WI · On-site

$80 - $110/hr

Design and implement back‑end architecture for our API, integrations, and data layer * Build and ... Mentor peer developers, review pull requests, and raise the bar on engineering quality ul ...

New

API Heat Transfer

1st Shift Steel Welder

Racine, WI · On-site

$18.50 - $22.50/hr

... engineering expertise with a drive to solve complex challenges--consistently delivering the right solutions for our customers. API Heat Transfer is looking for people who enjoy being part of ...

API Heat Transfer

1st Shift Steel Welder

Racine, WI · On-site

$18.50 - $22.50/hr

... engineering expertise with a drive to solve complex challenges--consistently delivering the right solutions for our customers. API Heat Transfer is looking for people who enjoy being part of ...

TEKsystems

Software Engineer

Racine, WI · Hybrid

$45 - $75/hr

Skills python, rest api, unit testing, html, css, javascript, react, azure, app services, azure functions, service bus, apim, application insight, reddis cache, devops, azure devops, test automation ...

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All JobsApi Engineer JobsApi Engineer Jobs in Wisconsin

Api Engineer information

See Wisconsin salary details

$25

$54

$77

How much do api engineer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for api engineer in Wisconsin is $54.13, according to ZipRecruiter salary data. Most workers in this role earn between $43.65 and $62.84 per hour, depending on experience, location, and employer.

What does an API engineer do?

An API Engineer is responsible for designing, developing, and maintaining application programming interfaces (APIs) that allow different software systems to communicate with each other. They ensure APIs are efficient, secure, and scalable, often working closely with front-end and back-end developers to integrate new features or services. API Engineers also write documentation, perform testing, and troubleshoot any issues related to API functionality. Their work is essential in enabling seamless data exchange and connectivity between various platforms and applications.

What are the key skills and qualifications needed to thrive as an API engineer, and why are they important?

To thrive as an API Engineer, you need strong programming skills (often in languages like Java, Python, or Node.js), a solid understanding of RESTful and/or GraphQL APIs, and relevant experience or a degree in computer science or a related field. Familiarity with API management tools (such as Postman, Swagger, or Apigee), cloud platforms, and authentication protocols like OAuth is typically expected. Excellent problem-solving abilities, attention to detail, and effective communication skills help you collaborate with cross-functional teams and address integration challenges. These competencies are crucial for building secure, scalable, and reliable APIs that enable seamless data exchange and power modern applications.

How does an API engineer typically collaborate with frontend and backend teams during the development lifecycle?

API Engineers play a crucial role in bridging the gap between frontend and backend teams. They often work closely with frontend developers to understand data requirements and ensure that APIs deliver the necessary information efficiently and securely. Simultaneously, they collaborate with backend engineers to integrate APIs with databases and other services, ensuring robust performance and scalability. Regular communication and participation in agile ceremonies like sprint planning or stand-ups help prevent misalignments and keep development on track.

What is the difference between Api Engineer vs Software Developer?

AspectApi EngineerSoftware Developer
Required CredentialsBachelor's in CS or related, API-specific certificationsBachelor's in CS or related, general programming certifications
Work EnvironmentFocus on API design, development, and integrationDevelops a wide range of software applications
Employer & Industry UsageTech companies, SaaS providers, API-centric businessesBroadly across all industries, including tech, finance, healthcare
Search & Comparison IntentUnderstanding API-specific roles, skills, and responsibilitiesGeneral software development roles and career paths

Api Engineers specialize in designing, developing, and maintaining APIs to enable software communication, often working closely with backend systems. Software Developers create a wide range of applications across various platforms. While both roles require programming skills and similar educational backgrounds, Api Engineers focus more on API architecture and integration, whereas Software Developers work on broader software solutions.

Are API engineers in demand?

API engineers are in high demand due to the increasing reliance on web services and cloud-based applications. They typically require skills in REST, SOAP, and programming languages like Python or Java, and often find opportunities across technology, finance, and healthcare sectors. The role is expected to grow as digital integration becomes more essential for businesses.

How much do API engineers make?

API engineers typically earn a median salary ranging from $90,000 to $130,000 annually, depending on experience, location, and industry. Skilled API engineers with expertise in REST, GraphQL, and cloud platforms can command higher salaries, especially in tech hubs or with advanced certifications.

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

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

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

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

Api Engineer jobs near you
Infographic showing various Api Engineer job openings in Wisconsin as of August 2026, with employment types broken down into 93% Full Time, 4% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution, with an average salary of $112,596 per year, or $54.1 per hour.

Senior Security Engineer

Apex Systems

Appleton, WI • On-site

$100 - $130/hr

Other

Re-posted 6 hours ago

Job description

## Job Description# Senior Security Engineer* Help evaluate, implement, configure, and operationalize a DAST/Web Application Scanning platform* Contribute to architecture and development of a unified security visibility pipeline across:+ SAST findings+ Container vulnerabilities+ Cloud-hosted workloads+ CI/CD pipelines+ Deployment environments (dev/stage/prod)* Build or enhance custom integrations between security tools and internal systems* Develop API-based integrations and custom workflows to aggregate vulnerability data* Assist in designing a centralized vulnerability mapping and contextualization framework* Collaborate closely with AppSec engineers and development teams to improve security visibility and workflows* Help create automated onboarding/enforcement controls across repositories and pipelines* Contribute to custom security controls and automation where commercial tooling is insufficient* Support backend, middleware, infrastructure, and API integration efforts tied to security initiatives* Participate in technical solutioning and architectural discussions around DevSecOps maturity* Provide recommendations and alternative approaches based on prior real-world implementation experience* Communicate technical solutions clearly to engineering leadership and business stakeholders*Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing(R) in Talent Satisfaction in the United States and Great Place to Work(R) in the United Kingdom and Mexico. Everforth Apex uses a virtual recruiter as part of the application process. Click* *for more details.* #J-18808-Ljbffr

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