Demo

Senior Software Engineer -API

Jobs via Dice
Milwaukee, WI Full Time
POSTED ON 4/21/2026
AVAILABLE BEFORE 5/20/2026
Dice is the leading career destination for tech experts at every stage of their careers. Our client, MARS IT, is seeking the following. Apply via Dice today!

MARS Solutions Group is looking for an experienced Senior Software Engineer. Our client is an insurance firm looking for high-quality talent to make a difference. They are known to respect a traditional work week and often extend contracts for added job security and stability.

What's the Role?

Collaborate with the API Enablement team to build and maintain enterprise-grade internal tooling, API governance automation, and developer experience platforms. Contributes to the design and delivery of cross-cutting technical solutions - including API quality enforcement engines, SDK generators, and the enterprise API catalog - that enable domain teams to build and publish high-quality APIs at speed. Supports contract-first API development practices and tooling built around OpenAPI Specification (OAS). Participates in refinement, solution definition, and decomposition of features into deliverable work items. Works across organizational boundaries with domain engineering teams, Enterprise Architecture, and API Management to deliver on the team's highest-priority initiatives. Finds opportunities for continuous improvement and owns initiatives that help the team get better. Engages collaboratively, respects diverse perspectives, and communicates effectively with both technical and non-technical audiences.

Qualifications

  • Bachelor's Degree or equivalent experience
  • 8 years of professional software development experience required
  • 5 years of experience with API design, development, and governance including OpenAPI Specification (OAS) and REST best practices
  • Experience with Java and/or Node.js/TypeScript
  • Proficient in practices such as contract-first API design, API quality automation, and internal platform/tooling development
  • Proven track record of architecting and delivering significant developer tooling or platform solutions (e.g., SDK generators, compliance engines, API catalogs)
  • Capable of working autonomously and delivering with minimal direction in an enterprise environment
  • Effective communicator with product, engineering, architecture, and business partners, with proven ability to communicate to both technical and non-technical audiences in varying forms and levels of detail

Skills for Sourcing

Must-Have Skills:

API Development (REST / OpenAPI), Java or Node.js/TypeScript, Internal Developer Tooling / Platform Engineering, Contract-First API Design

Nice-to-Have Skills:

API Quality / Compliance Automation (e.g., Spectral), Client SDK Generation (e.g., OpenAPI Generator / Kiota), API Catalog / Developer Portal Experience, Enterprise Authorization Patterns (PBAC or similar)

About MARS Solutions Group: MARS Solutions Group provides a range of opportunities for meaningful work by understanding that employment fit is a combination of people, process, and technology. We leverage our experienced and compassionate team to bring humanity to matching you with the right advanced technology role, and stay connected with you to help you attain your professional goals.

Salary.com Estimation for Senior Software Engineer -API in Milwaukee, WI
$124,944 to $150,533
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