60 Cognizant Mainframe Software Developer Jobs Hiring Near You

About the role
As a Senior .NET Developer, you will make an impact by developing, enhancing and maintaining scalable backend services and APIs for our client's application development initiatives. You will be a valued member of the ADM team and work collaboratively with cross-functional technology, delivery and business stakeholders to build reliable, high-performing solutions.
In this role, you will:
• 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.
Work model: Hybrid
We strive to provide flexibility wherever possible. Based on this role's business requirements, this is a remote position open to qualified applicants in the United States (Charlotte, NC time).
Please note: A few of our roles may require in-person interviews at Cognizant offices or client locations, depending on project or client needs.
The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.
What you need to have to be considered:
• 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.
*Please note, this role cannot offer visa transfer or sponsorship now or in the future*
These will help you stand out:
• Experience working in banking or financial services environments.
• Exposure to microservices architecture and cloud platforms.
• DevOps awareness and experience supporting production applications.
• Ability to work independently and collaborate effectively across overlapping time zones.
We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.
Salary and compensation:
The annual salary for this position will be between $55,000 to $92,500 per year depending on the experience and other qualifications of the successful candidate. This position is also eligible for Cognizant's discretionary annual incentive program and stock awards, based on performance and subject to the terms of Cognizant's applicable plans.
Applications will be received by September 14 th , 2026.
Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/Short-term Disability.
• Paid Parental Leave.
• Employee Stock Purchase Plan.
Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization's unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.