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Location
In office (London)
Seniority
Senior · 7+ years exp
Visa
Sponsors visas in United States, Ireland; no register of this country names it
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 13, 2026. First seen by Alion on Nov 13, 2026. Cognizant scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Cognizant is an American information technology services and consulting company founded in 1994 as an in-house technology unit of Dun and Bradstreet in Chennai, India, and headquartered in Teaneck, New Jersey. It builds, integrates and operates software and infrastructure for large enterprises, with particularly deep positions in healthcare, financial services, insurance and life sciences, delivered by a global workforce of more than three hundred thousand people concentrated in India. Listed on Nasdaq, the company competes with the large Indian and global systems integrators and has reoriented its offerings around cloud migration, data platforms and AI-assisted engineering.

Senior Full Stack Software Engineer (.NET, Angular & Cloud)

Job Summary

We are seeking an experienced Senior Full Stack Software Engineer with strong expertise in Microsoft technologies, modern web development, cloud platforms, and software engineering best practices. The ideal candidate will have a proven track record of delivering scalable, secure, and high-quality applications across both backend and frontend technologies to work on-site.

You will work closely with product owners, architects, QA teams, and fellow engineers to design, develop, and support enterprise-grade solutions. The role requires a strong engineering mindset, excellent problem-solving skills, and a passion for leveraging modern development practices, including AI-assisted software development.

Required Skills & Experience

Full Stack Development

  • 7+ years of professional software development experience demonstrating progressive growth and increasing technical responsibility.
  • Strong hands-on experience with C#, .NET, ASP.NET Core, and RESTful Web APIs.
  • Experience designing and implementing Webhooks and event-driven integrations.
  • Strong expertise in Angular (12+), TypeScript, JavaScript, HTML5, CSS3, and responsive web application development.
  • Experience developing applications using Bootstrap and modern UI frameworks.
  • Proficiency in object-oriented programming (OOP), software design patterns, and SOLID principles.
  • Ability to write clean, maintainable, secure, and reusable code.

Quality Engineering & Testing

  • Hands-on experience with Test-Driven Development (TDD) and automated testing practices.
  • Experience with QA automation frameworks and automated testing strategies.
  • Strong understanding of software quality, code reviews, and continuous improvement practices.

Database Technologies

  • Experience working with relational databases such as SQL Server.
  • Experience with NoSQL databases such as MongoDB.
  • Strong understanding of database design, performance optimization, and data modeling.

Cloud & Modern Architecture

  • Experience developing and deploying applications on cloud platforms such as AWS or Microsoft Azure.
  • Strong understanding of Microservices Architecture and distributed systems.
  • Experience building scalable, resilient, and highly available applications.

DevOps & Development Tools

  • Proficiency with Git or other source control management systems.
  • Experience with CI/CD pipelines and DevOps tools such as:
    • Jenkins
    • Docker
    • Spinnaker
  • Familiarity with automated deployment and release management processes.

AI-Assisted Development

  • Hands-on experience using Generative AI-assisted development tools and modern engineering practices.
  • Experience with spec-driven development, AI agents, development copilots, or related productivity tools.
  • Ability to effectively integrate AI-assisted workflows into software development processes.

Preferred Skills

  • Experience working within Agile delivery environments (Scrum, Kanban).
  • Knowledge of the Atlassian toolset, particularly Jira and Confluence.
  • Familiarity with accessibility standards such as WCAG 2.1 AA.
  • Understanding of secure software development practices and application security principles.
  • Experience with webhook automation scripting and process automation.
  • Exposure to enterprise integration and event-driven architectures.

Key Responsibilities

  • Design, develop, test, and maintain scalable full-stack applications using .NET and Angular technologies.
  • Build and maintain secure, high-performing REST APIs, web services, and integration components.
  • Design and implement webhook-based and event-driven solutions.
  • Develop responsive and accessible user interfaces following modern web standards.
  • Collaborate with product owners, business analysts, architects, and QA teams to deliver high-quality software solutions.
  • Implement automated testing and quality assurance practices across the development lifecycle.
  • Participate in architectural discussions and contribute to technical design decisions.
  • Optimize application performance, scalability, and reliability.
  • Build and support cloud-native applications deployed on AWS or Azure.
  • Contribute to CI/CD automation and DevOps initiatives.
  • Ensure compliance with security, accessibility, and governance standards.
  • Troubleshoot production issues and provide timely resolution of technical challenges.
  • Participate in code reviews and promote engineering best practices.
  • Research and evaluate emerging technologies, including AI-assisted development capabilities.

Additional eligibility requirements:

· Candidates must currently reside in the UK.

· Candidates must be available to start within 4 weeks of receiving an offer.

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