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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 ...

HTC Global Services

API Tester

Madison, WI · On-site

$46.25 - $61.25/hr

Senior SDET - API Automation (RestAssured/JavaScript) Position Overview This role focuses heavily on automation, with an emphasis on API automation, automation framework development, and Agile in ...

kozmetickesluzby.vecnakraska.sk - Jobboard

WI · On-site

$100 - $130/hr

Senior Python Developer with AWS experience Senior Python Developer with AWS experience, Richmond ... API, DynamoDB, Postgres Dara structures and algorithms * Object oriented programming, Usage of ...

Accenture

Mulesoft Sr. Developer / Architect

Milwaukee, WI · On-site

$49.50 - $65.75/hr

You Are An experienced, hands-on MuleSoft Senior Developer who combines technical depth with ... Minimum of 5 years experience with OAuth, JWT, TLS, API security, test automation, logging ...

Soteria Reinsurance Ltd.

WI · On-site

$120 - $155/hr

Performs back-end services development using Application Programing Interface (API) design and ... a Senior Front-End Developer (or closely related occupation) developing and deploying Cloud ...

TiTANS Consulting

WI · On-site

$103.60 - $138.14/hr

We are looking for a senior developer who will take ownership of designing and building high ... Azure Cloud development: more than 3 years of experience. * .NET Core Web API development: Over 3 ...

Resolve Tech Solutions, LLC

WI · On-site

$90 - $120/hr

Position Summary The Senior ServiceNow Developer is responsible for advanced platform development ... Advanced expertise in server‑side and client‑side scripting, API development, and platform ...

Flosum

WI · On-site

$60 - $80/hr

We need senior-caliber Node.js developers who can own significant parts of our architecture and ... Strong command of RESTful API design, authentication patterns (OAuth 2.0, JWT), and API security ...

New

SWBC

WI · On-site

$120 - $160/hr

Design, build, and support API-driven integrations and workflow automations across mortgage ... Support DevOps, source control, CI/CD, cloud, monitoring, operational support, and infrastructure ...

Hive-X

WI · On-site

$100 - $130/hr

We are looking for a 5 Senior Java Backend Developers / Integration Engineers to strengthen the ... Solid knowledge of API design, security, and system integration * Experience with relational ...

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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 Application Analyst -SAP Development

Sarian Solutions

Madison, WI • On-site

$96K - $133K/yr

Other

Re-posted 14 days ago

Job description

Job Title

Python API Developer

Skill

Digital : Python

Skill Type

Marketable

Minimum Experience

10 - 15 Years

Qualification

BACHELOR OF COMPUTER SCIENCE

Location

Malvern, PA

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Mandatory Technical Skills
  • Python Development
  • AWS Lambda (Serverless Architecture)
  • REST API Development
  • Amazon Aurora Database
  • DynamoDB
  • Liquibase (Database Migrations & Version Control)
Key Responsibilities
  • Design, develop, and maintain scalable REST APIs using Python and AWS Lambda.
  • Integrate applications with Aurora and DynamoDB databases.
  • Manage database schema changes and migrations using Liquibase.
  • Develop, test, and deploy cloud-native applications following AWS best practices.
  • Implement monitoring, logging, automated testing, and troubleshooting.
  • Work within Agile teams and CI/CD environments.
  • Optimize application and database performance.
  • Support production deployments and issue resolution.
  • Participate in code reviews, architecture discussions, and technical documentation.
Managerial & Soft Skills
  • Project Planning & Execution
  • Stakeholder Management
  • Strong Communication Skills
  • Cross-functional Collaboration
  • Decision Making & Problem Solving
  • Leadership & Ownership
  • Risk & Issue Management
  • Customer & Business Focus
  • Mentoring & Coaching Team Members
  • Change & Project Management
Ideal Candidate Profile
  • 5+ years of Python development experience.
  • Strong hands-on AWS Lambda and serverless architecture expertise.
  • Experience with Aurora and DynamoDB.
  • Knowledge of Liquibase for database migrations.
  • Exposure to CI/CD pipelines and Agile methodologies.
  • Strong troubleshooting and performance optimization skills.
  • Excellent communication and stakeholder management abilities.

Senior Application Analyst -SAP Development

Location: Madison, WI

Type: Full Time (Hybrid)

We are looking for a seasoned SAP technical leader who combines deep ABAP development expertise with modern SAP cloud technologies, enterprise integration experience, and the ability to influence business and IT stakeholders. Demonstrated success delivering large-scale SAP transformation initiatives while championing best practices, governance, performance optimization, and clean-core development principles.

  • 2+ years of experience leading SAP development intake and demand management processes, partnering with business and functional stakeholders to evaluate, prioritize, and roadmap development initiatives. Proven ability to balance business value, technical complexity, resource capacity, and delivery timelines while driving strategic decision-making.
  • 5+ years of hands-on SAP ABAP development experience within complex enterprise environments, including Classical and Object-Oriented ABAP, Function Modules, BAPIs, BADIs, Enhancement Frameworks, Reports (Classical, ALV, OO ALV), IDocs, Interfaces, and Forms (Adobe Forms, SmartForms). Experience in regulated industries is highly preferred.
  • Deep expertise in ABAP on HANA, including CDS Views, AMDP, ADBC, advanced SQL optimization, code remediation, performance tuning, and end-to-end application scalability.
  • Strong experience with SAP Business Technology Platform (BTP), including Cloud Foundry, Kyma Runtime, and modern development frameworks such as CAP and RAP. Proven success building and integrating cloud-native SAP solutions.
  • Extensive integration experience leveraging SAP Integration Suite (CPI), including S/4HANA, BTP, and third-party application integrations via iFlows, CPI-DS, OData services, REST APIs, and event-based architectures.
  • Solid understanding of event-driven and API-first architectures, including asynchronous messaging, message queues, SAP Event Mesh, OData services, and enterprise integration patterns supporting scalable digital ecosystems.
  • Experience supporting organizations through RISE with SAP transformations, with strong knowledge of extensibility strategies (In-App and Side-by-Side), Clean Core principles, and SAP modernization initiatives.
  • Hands-on experience with SAP Fiori development and UI extensibility, including Adapt UI, Fiori Elements, and Freestyle applications, with a focus on delivering intuitive and scalable user experiences.
  • Strong understanding of SAP RAP (RESTful ABAP Programming Model), Clean Core architecture, and SAP's strategic roadmap for S/4HANA extensibility and cloud adoption.

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