Lead Software Engineer

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Job Type: Permanent

Location: London, UK / Hybrid

Number of hours: 40 hours per week - full time

Ready to utilize your experience and expertise in Dot Net Development?

We have an exciting role for you - Lead Dot Net Developer.

Careers at TCS:

It means more TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

• Build strong relationships with a diverse range of stakeholders.
• Gain access to endless learning opportunities.
• Work closely with the range of teams within the business to bring products to life.

The Role:

As a Technical Lead you will be responsible for architecting and delivering enterprise-grade backend systems using .NET Core, Azure services, and modern DevOps practices.

This role combines technical leadership, solution architecture, and hands-on development to build secure, scalable, and high performing applications.

Key responsibilities:

• Lead a team of backend developers working on .NET Core and Azure-based applications.
• Architect, design, and develop microservices and REST APIs using .NET Core / .NET 6+.
• Build and manage Azure PaaS components (SQL Database, Storage, Event Hub, Service Bus, Cosmos DB, APIM, Functions, Key Vault, App Insights).
• Define and maintain CI/CD pipelines using Azure DevOps or GitHub Actions.
• Implement monitoring, logging, and diagnostics (App Insights, Log Analytics).
• Ensure cloud cost optimization, security standards, and high availability.
• Collaborate with product owners, architects, and cross-functional teams to translate business requirements into technical solutions.
• Review code, mentor developers, and ensure high-quality deliverables.
• Handle critical production issues and guide quick resolutions.
• Participate in sprint planning, estimation, and release management.

Your Profile Essential skills/knowledge/experience:

• Deep expertise in .NET Core / .NET 6+, Azure PaaS/IaaS, and microservices architecture.
• Strong understanding of event-driven architecture, messaging patterns, and distributed systems.
• Hands-on experience with Azure services (SQL, Storage, Event Hub, Service Bus, Cosmos DB, APIM, Functions, Key Vault).
• Strong knowledge of CI/CD pipelines, DevOps practices, and Git.
• Experience with cloud security, authentication/authorization (Azure AD, OAuth2, JWT).
• Expertise in Entity Framework Core, SQL performance tuning, and database design.
• Familiarity with Docker, Kubernetes, or Azure Kubernetes Service (AKS).
• Knowledge of DDD, CQRS, and advanced architectural patterns.
• Strong analytical, problem-solving, and decision-making abilities.
• Experience with distributed caching (Redis, Azure Cache).
• Exposure to API versioning and lifecycle management.
• Performance tuning and cloud scalability strategies.
• Experience with automated testing frameworks.

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We believe in building and sustaining a culture of equity and belonging where everyone can thrive. Our diversity and inclusion motto is ‘Inclusion without Exception’. Our continued commitment to Culture and Diversity is reflected across our workforce implemented through equitable workplace policies and processes.

You’ll find a welcoming culture and many internal volunteering and social networks to join (these are optional). Our diversity, inclusion and social activities include 12 employee networks such as gender diversity, LGBTQIA+ & Allies, mental health, disability & neurodiversity inclusion and many more, as well as health & wellness initiatives and sports events and we sponsor the London Marathon.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at with the subject line: “Adjustment Request” or call TCS London Office to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

• Deep expertise in .NET Core / .NET 6+, Azure PaaS/IaaS, and microservices architecture.
• Strong understanding of event-driven architecture, messaging patterns, and distributed systems.
• Hands-on experience with Azure services (SQL, Storage, Event Hub, Service Bus, Cosmos DB, APIM, Functions, Key Vault).
• Strong knowledge of CI/CD pipelines, DevOps practices, and Git.
• Experience with cloud security, authentication/authorization (Azure AD, OAuth2, JWT).
• Expertise in Entity Framework Core, SQL performance tuning, and database design.
• Familiarity with Docker, Kubernetes, or Azure Kubernetes Service (AKS).
• Knowledge of DDD, CQRS, and advanced architectural patterns.
• Strong analytical, problem-solving, and decision-making abilities.
• Experience with distributed caching (Redis, Azure Cache).
• Exposure to API versioning and lifecycle management.
• Performance tuning and cloud scalability strategies.
• Experience with automated testing frameworks.

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We believe in building and sustaining a culture of equity and belonging where everyone can thrive. Our diversity and inclusion motto is ‘Inclusion without Exception’. Our continued commitment to Culture and Diversity is reflected across our workforce implemented through equitable workplace policies and processes.

You’ll find a welcoming culture and many internal volunteering and social networks to join (these are optional). Our diversity, inclusion and social activities include 12 employee networks such as gender diversity, LGBTQIA+ & Allies, mental health, disability & neurodiversity inclusion and many more, as well as health & wellness initiatives and sports events and we sponsor the London Marathon.