Tata Consultancy Services
Azure Cosmos DB Developer
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Azure Cosmos DB Developer
If you require any support in completing your application or need this document in an alternative format, please contact the recruitment team at UKI.recruitment@tcs.com or call the TCS London Office on 020 3155 2100. Please include the subject line: “Application Support Request”.
Azure Cosmos DB Developer
Job Type: Permanent
Location: London, UK
Mode of Working: Hybrid
Working Hours: 40 hours per week (Full-time)
Are you looking to build scalable cloud-native applications and data platforms using Azure technologies?
We have an exciting opportunity for you - Azure Cosmos DB Developer!
Careers at TCS: It Means More
TCS is a purpose-led transformation company, built on belief. We go beyond helping businesses transform through technology, we enable them to make a meaningful difference to the people and communities they serve. Our clients include leading organizations across the UK and globally. At TCS, it means more, more opportunity to make an impact that matters through challenging projects that demand innovation, collaboration, and thought leadership.
- Align technology solutions with business outcomes while building expertise in modern cloud and data platforms.
- Contribute to transformative projects within a global financial services environment.
- Design secure, scalable, and resilient solutions that support critical business operations and customer trust.
The Role
As an Azure Cosmos DB Developer, you will play a key role in transforming critical application and data engineering capabilities within a leading financial services environment. You will be responsible for developing cloud-native solutions using Azure Cosmos DB and Microsoft Fabric, optimizing data performance, and supporting scalable, high-quality data engineering practices. The role requires strong technical expertise in NoSQL databases, distributed computing, and modern cloud development practices.
Key Responsibilities
- Develop cloud-native applications using Azure Cosmos DB, including SQL API and MongoDB API.
- Design and implement efficient NoSQL data models aligned with application and business requirements.
- Optimize database performance through effective partitioning, indexing strategies, and query tuning.
- Develop and maintain Cosmos DB queries to improve performance and minimize RU consumption.
- Leverage Cosmos DB Change Data Feed (CDF) capabilities to support data integration and processing solutions.
- Design and implement PySpark data pipelines using Microsoft Fabric.
- Establish and maintain CI/CD pipelines using GitLab to support automated deployment and delivery.
- Develop and maintain unit and integration tests using Pytest and associated testing frameworks.
- Collaborate with architects, developers, and DevOps teams to integrate Cosmos DB into microservices-based solutions.
- Ensure compliance with security, governance, and data protection requirements.
- Troubleshoot performance, integration, and data processing issues across cloud-native environments.
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Your Profile
Essential skills/knowledge/experience
- Strong hands-on experience with Azure Cosmos DB, including query optimization, throughput management, and performance tuning.
- Thorough understanding of Cosmos DB Change Data Feed (CDF) and integration with Spark-based solutions.
- Experience working with Cosmos DB SDKs in technologies such as.NET, Java, Python, or Node.js.
- Strong understanding of distributed computing concepts and Apache Spark architecture.
- Hands-on experience developing data pipelines using PySpark.
- Experience with Pytest and automated testing frameworks.
- Strong understanding of partitioning, indexing strategies, and consistency models within Cosmos DB.
- Experience building scalable applications and working with concurrency patterns.
- Experience with Git, version control systems, and CI/CD tooling.
- Strong analytical, problem-solving, communication, and stakeholder management skills.
Desirable skills/knowledge/experience
- Advanced proficiency in C#, ASP.NET, and.NET Core.
- Strong understanding of object-oriented design principles and software engineering best practices.
- Experience developing microservices-based architectures.
- Familiarity with Azure cloud-native services and modern DevOps practices.
- Experience within financial services or highly regulated environments.
Rewards & Benefits
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. We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon.
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.
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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.
As a Disability Confident Employer, we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at UKI.recruitment@tcs.com if you would like to opt in.
If you are an applicant who needs any adjustments to the application process or interview, please contact us at UKI.recruitment@tcs.com with the subject line: “Adjustment Request” or call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.
Next Steps
Application Process
- Online application: You can apply directly through LinkedIn/ by uploading your CV. In case you wish to submit your application via another format like audio/video, please, contact - UKI.recruitment@tcs.com
- Skill-Based discussion: This will be a level 1 interview with the project team, it can be via video or in-person. Details will be confirmed by your recruiter.
- Managerial discussion: This discussion will focus on behavioral aspects and person-organization fit.
- HR Discussion: This will be with one of the members of the HR team and will cover your career journey, aspirations for growth, compensation and any other questions you may have.
Beware of Fraudulent offers
This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail, Yahoo Mail, and so on. TCS has not authorized any third-party company to collect money on their behalf. As a vigilant job seeker, beware of fraudulent recruitment activity and protect your interests! You can write to UKI.recruitment@tcs.com to report any fraudulent activity.
Due to the high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.
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