Senior Software Engineer (.NET / Angular)

Job overview

The Senior Software Engineer is an onsite role based in Chicago, IL, with compensation not specified. This position supports a rapidly growing SaaS technology company modernizing financial and tax document delivery through secure, cloud-based solutions. The role exists to design, build, and maintain full-stack applications while contributing to frontend architecture and product-minded development. It involves owning features end-to-end, collaborating with leadership, and driving engineering excellence to ensure scalable, high-impact product growth.

What you'll do

• Design, build, and maintain full-stack applications using C#, .NET Core, Angular, and Azure.
• Own features end-to-end from requirements to deployment.
• Contribute to frontend architecture and Angular best practices.
• Participate in code reviews and collaborate with product managers and stakeholders.
• Improve CI/CD pipelines and DevOps workflows.

What we're looking for

Skills & competencies

full-time

onsite

chicago il

software engineer

.net

angular

azure

saas

c#

engineering

hybrid

no on-call

Work arrangement

• Weekend coverage required

Benefits & perks

• Hybrid Work Environment, Unlimited PTO, Paid Holidays, Paid Sick Time, Paid Parental Leave, Healthcare Benefits, 401(k) Retirement Plan

Why this role

High ownership, real impact on product direction, and rapid growth opportunities.

About the employer

JCSI is hiring for this role. Industry: Custom Computer Programming Services. Sector: 54.