Senior .NET Backend Engineer - APIs & Microservices

Cognizant; Helena (MT); Hybrid; USD 55,000 - 93,000; Full time

Benefits offered by this job

Medical/Dental/Vision/Life Insurance

Paid holidays plus PTO

401(k) plan and contributions

Disability Insurance

Paid Parental Leave

Employee Stock Purchase Plan

Job summary

Cognizant is seeking a Senior .NET Developer to design, implement, and maintain scalable backend services and APIs for client projects. You will collaborate with ADM team members and cross-functional stakeholders to deliver reliable, high-performing solutions.

Hybrid role open to US applicants; requires strong C#, .NET, and ASP.NET Web API experience, plus REST APIs and SQL Server proficiency. Visa transfer not offered. Applications due by Oct 24, 2026.

Qualifications

• Bachelor’s degree in computer science, Engineering, or a related field, or equivalent practical experience.
• 5+ years of strong professional experience in backend development using C#, .NET and ASP.NET Web API.
• Hands-on experience building and integrating REST APIs and working with SQL Server.
• Experience using Git and applying unit testing practices in software development.
• Exposure to microservices architecture and cloud platforms.
• Awareness of DevOps practices and experience supporting production applications.
• Experience in banking or financial services environments is preferred.
• Strong problem-solving, communication and collaboration skills.

Responsibilities

• Develop, enhance and maintain backend services, APIs and application components using C#, .NET and ASP.NET Web API.
• Write scalable, secure and high-performance code while contributing to complex modules and existing application features.
• Participate in code reviews, unit testing and troubleshooting to improve solution quality and production stability.
• Collaborate with cross-functional teams to understand requirements, support delivery priorities and resolve technical issues.
• Work independently while supporting overlapping time zones when required by project and client needs.

Skills

C#

NET

ASP.NET Web API

Git

Unit testing

Microservices

Cloud platforms

DevOps

Banking domain

Education

Bachelor's degree in CS/Engineering

Tools

SQL Server

Job description

Cognizant is seeking a Senior .NET Developer to design, implement, and maintain scalable backend services and APIs for client projects. You will collaborate with ADM team members and cross-functional stakeholders to deliver reliable, high-performing solutions.

Hybrid role open to US applicants; requires strong C#, .NET, and ASP.NET Web API experience, plus REST APIs and SQL Server proficiency. Visa transfer not offered. Applications due by Oct 24, 2026.