11 api developer jobs at 9 companies in Madison, SD
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
POET: Converts agricultural resources into sustainable energy and bioproducts
Bachelor's degree in computer science/engineering, strong OOP skills, experience with .NET/C#/ASP.NET, SQL, Microsoft Visual Studio, software development lifecycle, and teamwork.
.NET, C#, ASP.NET, Microsoft Visual Studio, SQL, Microsoft Office Suite, MVC, Blazor, .NET Core, Web APIs, JavaScript, MS SQL Server
Milford or Cocoa Beach or Orlando or Sioux Falls or Orlando or Jacksonville or Columbus or York Haven or Birmingham or Augusta or Nashville or Houston or Dallas or Albuquerque or Columbia or Milwaukee or McAllen or El Paso or San Antonio or Salt Lake City or Charlotte or Phoenix or Sunrise or Louisville or Sunrise
$150k-$175k/yrOnsiteFull Time
BeneLynk: Provides social care advocacy and government benefit enrollment assistance.
8+ YOE8+ years software development; strong in C#/.NET; REST APIs; Azure; scalable SaaS; distributed teams; healthcare/regulatory context.
Central Payments: Provides banking-as-a-service and payment technology platforms.
5+ YOE5+ years developing scalable enterprise applications and APIs using C#, Java, React, MSSQL/PostgreSQL; strong architecture, CI/CD, cloud (AWS/Azure), troubleshooting, and communication skills.
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
5+ YOEBachelor's in CS/CIS or related and 5+ years post-baccalaureate experience. Required: geospatial application design/deployment, Python data workflows, JavaScript (Node.js, React), relational DB (MySQL/PostgreSQL), Unix/Linux, APIs; container and DB admin experience.
Member of Technical Staff, Agentic Banking (Product Engineer)
New York or San Francisco or Sioux Falls or Porto or Singapore or United States
RemoteFull Time
Anchorage Digital: Institutional-grade digital asset custody, trading, and infrastructure platform.
8+ YOE8+ years full‑stack development experience; strong product judgment; build frontend, backend, APIs, and docs; familiarity or willingness to learn crypto/financial systems; excellent written communication and AI-assisted execution skills.
Puck Enterprises: Manufactures liquid transfer equipment and slurry handling systems.
3+ YOE3+ years building production applications with C#/.NET and Microsoft Azure; experience with REST APIs, relational databases, CI/CD, and debugging; BS in CS or equivalent preferred.
Puck Enterprises: Manufactures liquid transfer equipment and slurry handling systems.
6+ YOE6+ years building and operating production systems with C#/.NET and Microsoft Azure; strong API, SQL, CI/CD, debugging, and communication skills.
Sanford Health: Operates an integrated network of hospitals and healthcare facilities.
5+ YOEBachelor's in related field, 2+ years hands-on monitoring operations and 5+ years industry experience; experience with enterprise monitoring platforms, log aggregation/SEIM, scripting, and strong communication skills.
United States or New York City or San Francisco or Porto or Singapore or Sioux Falls
RemoteFull Time
Anchorage Digital: Institutional-grade digital asset custody, trading, and infrastructure platform.
8+ YOE8+ years building backend services, designing customer-facing APIs and cloud-native microservices; production on-call experience; strong CS fundamentals; mentoring and architecture leadership.
SONIFI Solutions: Provides interactive technology for hospitality and healthcare industries.
10+ YOE10+ years software engineering experience with deep architecture expertise; strong AWS/cloud-native, microservices, API design (REST/GraphQL), Linux, containerization (Docker/Podman), CI/CD, and programming in Python, JavaScript/TypeScript, Go, or C++.