> Markdown version of [/jobs/ext/3922156-net-software-engineer-b2b-saas](https://www.wearedevelopers.com/jobs/ext/3922156-net-software-engineer-b2b-saas). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Net Software Engineer / B2B / SaaS - **Company:** Kelly Services Inc. - **Location:** Chicago, IL, United States - **Experience:** Experienced - **Salary:** $110,000.0 - $130,000.0 - **Contract:** Permanent contract - **Skills:** ASP.NET, HTML, .NET Framework, Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), Cascading Style Sheets (CSS), Software as a Service, Cloud Computing, Databases, Continuous Integration, DevOps, PostgreSQL, MongoDB, Queueing Systems, Software Engineering, SQL Databases, TypeScript, ReactJS, Blazor, Backend, Git, AngularJS, Kubernetes, Front End Software Development, Restful APIs, Docker, Microservices - **Published:** October 26, 2026 - **Apply:** https://www.chicagocareersite.com/job.asp?id=3467256438&tx=HT8175TTD&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 3+ years of professional software engineering experience * Strong experience with .NET, ASP.NET Core, and C# * Experience building REST APIs and backend services * Frontend development experience with React, Angular, or Blazor * TypeScript, HTML, and CSS expertise * Experience working with SQL databases * Familiarity with cloud platforms such as Azure, AWS, or GCP * Experience using Git-based development workflows * Ability to independently deliver complex technical projects Desired Skills & Experience * PostgreSQL or MongoDB experience * CI/CD pipeline exposure * Docker or Kubernetes knowledge * Experience building SaaS platforms * Microservices architecture experience * Message queue technologies * Prior startup experience * Mentoring or technical leadership experience ## Description A rapidly growing Chicago SaaS company is seeking a .NET Engineer to join its team in downtown Chicago near Union Station. This venture-backed software company develops technology that helps businesses streamline operations and scale more effectively. The team builds modern cloud-based applications using .NET, C#, REST APIs, SQL databases, and contemporary frontend frameworks. This opportunity is ideal for an engineer looking to have tangible influence on a growing product and growing company. Rather than being limited to a small piece of the stack, this person will own complete features from concept through deployment while working closely with product managers, designers, and fellow engineers. The environment offers significant autonomy, mentorship opportunities, exposure to architectural decision-making, and career growth within a high-performing startup team., * 45% Backend Development (.NET/C#) * 30% Frontend Development * 15% Cloud & DevOps * 10% Database Engineering Daily Responsibilities * 80% Hands-On Development * 5% Mentoring & Technical Guidance * 15% Team Collaboration