Company Overview: Req ID: 350060 NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a .NET Fullstack Senior Engineer to join our team in Plano, Texas (US-TX), United States (US). Job Description: Engineers, and engineering leaders that are hands-in, hands-on. Constant learners who are continuously honing their craft and improving their skills. Required: + .NET Core (8, 10), C# (12, 14) – expert in current language features + Azure (or other public cloud provider) (cloud development, and distributed patterns) + Git, GitHub (CLI, Pull Requests) + Open API & REST + Continuous Integration, Continuous Delivery, Continuous Testing (CI, CD, CT) + (Azure DevOps, GitHub Actions, Jenkins) + SOLID Principles, Clean Code, and architectural patterns + Test Driven Development, Automated testing, (Unit, Integration, E2E) + Docker and containerized (12 factor) applications Additional nice to have: + AI augmented development with Claude Code, GitHub Copilot or Cursor + IoT experience + Message and event driven architectures + Observability & Open Telemetry + Async API + Kubernetes Experienced engineer who works closely with the Team Lead to analyze and break down features, design components and modules, and establish patterns and practices. Expected to work independently, mentor junior engineers, and take ownership of significant portions of the standardization initiative. This role requires hands-on technical expertise and the ability to leverage AI tools to maximize efficiency. Core Responsibilities: + Develop application features using best practices and patterns. + Review and refactor code to align with established standards + Mentor junior engineers on pattern implementation + Collaborate with US teams on technical requirements + Contribute to establishing new team patterns and practices Required Technical Skills: + 7+ years engineering experience + Strong proficiency in .NET (8/9) and C# + Experience with distributed services on Azure + REST API and Asynchronous messaging development + Contract-first development approach + Test-driven development (TDD) + Clean code and SOLID principles + 12-factor application methodology + CI/CD practices + Containerization experience + Version control (Git) expertise Preferred Skills: + React or Angular + Infrastructure as Code (Terraform, Helm) + Kubernetes orchestration + Build pipeline implementation + Observability patterns + IoT solutions Additional Competencies: + Self-directed and able to work independently + Strong problem-solving and analytical skills + Mentoring and knowledge-sharing abilities + Comfortable working across timezones + AI & Modern Development: + Experience with AI coding assistants (GitHub Copilot, Claude Code) + Ability to apply AI tools to accelerate development work + Willingness to adopt and promote AI-augmented development practices About NTT DATA: NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. Visit us at us.nttdata.com NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you’d like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.