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Job Type: Permanent
Location: Letterkenny GDC, Co. Donegal (Hybrid – minimum 3 days onsite per week)

Do you have a proven track record as an Azure Data Engineer with strong exposure to Fabric?
Are you keen to drive your career in the Data Engineering space with a leading global IT organisation?

Make your mark at TCS as an Azure Data Engineer!

Join a global tech leader right here in Donegal. With over 850 employees and a state-of-the-art global delivery centre, we’re proud to offer world-class career opportunities without having to leave the Northwest. Recognised as Workplace of the Year by the Letterkenny Chamber, we foster a culture of continuous learning, innovation, and respect. Our people are at the heart of everything we do – collaborating across teams, geographies, and disciplines to drive real change for clients around the world. Be part of something global, grounded in Donegal.
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.

• Join a leading global IT services organization
• Be part of an exciting team where you will be challenged every day
• Gain exposure to innovative technology

The Role
We are seeking an Azure Data Engineer to play a key role in modernizing the firm’s data platform and advancing its data and analytics capabilities.

The Data Engineer will be responsible for supporting and enhancing existing ETL processes for the on- prem data lake (PostgreSQL) while leading the evolution and migration of these processes to Microsoft Fabric. This role will focus heavily on developing and maintaining SQL-based transformation logic to ensure high quality, trusted, and analytics ready data.

Working closely with the Data Management team, the Data Engineer will help identify, remediate, and prevent data quality issues by encoding validation rules and controls directly into data pipelines. The role will also contribute to the evaluation and implementation of tools and frameworks supporting data governance, architecture, and data quality as the platform continues to evolve.

Duties & Responsibilities:

• Support and enhance existing ETL pipelines for an on‑premises data lake environment, primarily backed by PostgreSQL.
• Refactor and migrate data ingestion, transformation, and orchestration processes to Microsoft Fabric using modern cloud-native patterns.
• Design, develop, and maintain complex SQL-based transformation logic, including views, functions, and analytical datasets.
• Build and optimize data models to support analytics and reporting use cases, including Power BI semantic models.
• Perform aggregations and transformations across multiple data models (e.g., normalized, dimensional, lakehouse) to enable reliable insights.
• Partner closely with data analytics and reporting teams to understand consumption needs and ensure data is structured for performance, usability, and scalability.
• Implement and enforce data quality rules, validation checks, and automated error detection within ETL and transformation workflows.
• Support master and reference data processes, including defining data quality criteria, uniqueness rules, and remediation approaches.
• Collaborate with domain owners and data stewards to analyze root causes of data quality issues and drive corrective actions.
• Monitor cross-domain data provisioning to ensure data is sourced from approved and governed systems.
• Contribute to the evaluation and implementation of data governance, architecture, and quality tools in partnership with Global Technology teams.
• Document data pipelines, transformation logic, and architectural decisions to support maintainability and knowledge sharing.

Your Profile
Essential skills/knowledge/experience:

The successful candidate brings a structured, detail-oriented approach and a hands-on mindset toward advancing the organization’s data platform modernization.

• Bachelor’s degree required.
• Solid years of experience in a data engineering or analytics engineering role.
• Strong hands-on experience with SQL, including complex transformations, performance tuning, and data modeling.
• Experience supporting ETL pipelines in an on‑prem or hybrid data lake environment; exposure to PostgreSQL strongly preferred.
• Experience migrating or modernizing data platforms to Azure and/or Microsoft Fabric (Lakehouse, Pipelines, or related services).
• Solid understanding of modern data lake and warehousing architectures.
• Working knowledge of data engineering tools and languages such as SQL, Python, Spark, or similar technologies.
• Experience with at least one relational database platform (PostgreSQL, SQL Server, MySQL).
• Familiarity with data governance, data quality, or MDM concepts and tooling.
• Experience working in an agile, collaborative, cross-functional environment.
• Strong written and verbal communication skills; able to translate business requirements into technical solutions.
• Highly analytical, detail-oriented problem solver with a proactive, self‑starter mentality.
• Comfortable working in evolving environments and translating conceptual requirements into pragmatic, scalable solutions.

Desirable skills/knowledge/experience:

• MS Fabric experience and or certification (DP600 / DP700)
• Knowledge of the Finance / investments industry

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.

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”. We welcome requests prior to you completing the application and at any stage of the recruitment process.

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 authorised 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.

Join us and do more of what matters. Apply online now.