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

00071197473

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.

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.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

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Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

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Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

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Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

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Step 4: Decision time

Our team will then review each candidates’ potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us—but you can count on us to keep you updated.

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What I value most about working at Cognizant is the opportunity to innovate while delivering real business impact. My role allows me to combine strategy, technology, and collaboration across global teams, which makes every project meaningful. The support for continuous learning and innovation has been instrumental in my growth.
Beata Ogorzala Senior Event Manager
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Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.
Debashish Mishra SAP MM Developer
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Cognizant offers me more than a job; it offers a community. We support each other, collaborate across borders and celebrate wins together. If you’re looking for a culture that values flexibility, diversity and growth, this is the place to be.
Laura Reynaud Lead Counsel
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When I first joined, I was quiet and hesitant to share my thoughts. The leadership programs and the mentoring I’ve received have helped me find my voice and grow as a leader.
Sujatha Gopalakrishnan Portfolio Delivery Lead
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I’ve had the chance to work on impactful projects and shadow colleagues, all while getting involved in internal initiatives. The world is your oyster at Cognizant—you just need to take advantage of it!
Lucas Hoffman Consultant

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