Senior .NET Developer

Company: Cognizant Technology Solutions
Location: Jacksonville
Posted on: March 31, 2026

Job Description:

Cognizant’s Digital Engineering practice is seeking a highly qualified Senior .NET Developer with experience developing and building high-performing, scalable, enterprise applications. You will be part of a digital software team that works on high-demand applications. Our engineers have a passion for high-quality, reliable and maintainable code. You will work side by side with product managers, designers, and clients, making decisions together in order to quickly deliver valuable working software to clients and their users. Our engineers are agile and retrospective, and not afraid to identify what we’re doing wrong, so we can fix it, and what we’re doing right, so we can improve on it. Above all, we judge success by the success of our team and the happiness of our customers. Cognizant Digital Engineering If you’re like us, you’ve got big ideas. At Cognizant, we’re exploring new ideas every day. We help industry leading companies reinvent their business models and innovate products that create new value—by connecting people with things, insights and experiences. Cognizant digital engineering designs, engineers and delivers digital products and experiences that drive digital-first business models. We offer the most comprehensive digital engineering expertise and client-centric methodology for sustainable innovation. Location: Allentown, PA or Louisville, KY You must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future. Cognizant will not sponsor H-1B or other U.S. work authorization for this role. Key Responsibilities: • Develop MVP User Stories (Re-usable components/ API’s / UI / Mock stubs etc.) • Support backlog creation, prioritization, and Story mapping • Support in technical design and solutioning • Ability to work across tiers – UI development, APIs, databases (basic developer level tasks) • Ability to utilize DevOps CI/CD pipeline, create/configure build and deploy jobs • Experience working in XP and pair programming model and understands and performs TDD • Responsible for assigned task delivery and quality and knowledge transfer through daily pairing with Duke team members • Motivated and energetic engineers who are passionate about software modernization • Must be able to clearly communicate with team members and leadership • Participate in paired programming and XP development • Strong ability to work independently when required • Turn complex ideas into manageable pieces of work • Hands-on, Individual contribution and Mentor other developers in team • Support team members on troubleshooting Required Qualification: • Bachelor’s degree in computer science\Computer Information Systems or 8-12 years of applicable development experience. • Full stack developer experience needed (both frontend and backend) • 4-6 years of experience developing .NET or Framework Applications in C# (backend) • 3-4 years of experience developing in React and Next.js (Frontend) • 3-4 years of experience with SQL. • 3-4 years of experience with Git and git-flow methodologies • 3-4 years of experience with CI/CD tools such as Github Actions, GitLab CI/CD or Jenkins. • Developer with solid experience in development tools for Microsoft .NET systems including C# and .Net • Utilize Agile methodology to plan and update status using Jira. • Delivery ownership of assigned module • Ability to understand the future Architecture and work with the team to provide required technical direction • Assists with testing and migrating code through test regions. Ensures adherence to appropriate design, coding and source control standards. Leads design and code walkthrough as a presenter or reviewer. • Production troubleshooting skills. Coordinates and performs routine maintenance for emergency patches, service packs and upgrades. • Process Change Requests and Quality Assurance (QA) documentation for project implementations and support changes. 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. Travel: 0-5% Why Choose Cognizant? It takes a lot to succeed in today’s fast-paced market, and Cognizant Technology Solutions has become a leader in the industry. We love big ideas and even bigger dreams! We stand out because we put human experiences at the core. Our associates enjoy robust benefits and training opportunities from our industry-recognized, award-winning Academy team. You will have access to hundreds of technical trainings to keep your skillsets fresh and have opportunities to acquire certifications on the newest technologies. Everything we do at Cognizant we do with passion—for our clients (fortune 100 companies), our communities, and our organization. It’s the defining attribute that we look for in our people. If you love ambiguity, excited by change, and excel through autonomy, we’d love to hear from you! About Cognizant Digital Engineering Well-designed software transcends digital technology, going beyond the fulfillment of basic requirements to focus instead on human needs. Within Cognizant Digital Engineering, we help clients develop software products that transform human insights into tangible, production-ready digital solutions. We also work with our clients to scale their native cloud applications. Using insights from the lived experiences of our consumers, we seamlessly replace traditional service strategies with engaging, precise, and direct digital applications. Designing phenomenal software is vital to success in the digital economy—and we understand that a human-centric approach is key to this design. NASDAQ: CTSH LI-VB1 The Cognizant community: We are a high caliber team who appreciate and support one another. Our people uphold an energetic, collaborative and inclusive workplace where everyone can thrive. Cognizant is a global community with more than 300,000 associates around the world. We don’t just dream of a better way – we make it happen. We take care of our people, clients, company, communities and climate by doing what’s right. We foster an innovative environment where you can build the career path that’s right for you. About us: Cognizant is one of the worlds leading professional services companies, transforming clients business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World’s Best Employers 2025) is consistently listed among the most admired companies in the world. 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. Disclaimer: 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.

Keywords: Cognizant Technology Solutions, Daytona Beach , Senior .NET Developer, IT / Software / Systems , Jacksonville, Florida