Staff Software Engineer (Scala)

Job Type: Permanent
Location: Nationwide (Letterkenny GDC Base) hybrid policy with some travel to Letterkenny, Co Donegal / Customer site in Dublin

The Role

We are seeking a Staff Software Engineer (Scala) with deep expertise in application and back end development. This role focuses on designing, developing, and maintaining robust, scalable systems that power transformative digital experiences.

Key Pillars

• Back End Focus: server side logic, database management, API development, and integration with front end components, ensuring high performance and reliability for enterprise applications.
• Technical Breadth: mastery of Scala, Java and cloud platforms such as AWS, proven track record in scaling systems and driving architectural decisions.

What you'll do

• Collaborate with cross functional teams of engineers, product managers and designers.
• Build scalable, performant and resilient back end systems that support critical business needs.
• Participate in system design and architecture reviews to influence technical direction.
• Drive software quality through code reviews, testing and continuous integration.
• Contribute to a positive and inclusive engineering culture through mentorship, knowledge sharing and leadership at your level.
• Investigate and resolve complex technical issues in production environments.
• Author and review technical design documents, RFCs and root cause analyses.
• Continuously learn and grow in your engineering craft and domain knowledge.
• Participate in an on call rotation to ensure swift resolution of any production outages involving your systems.

What you'll need

• 7+ years of professional experience.
• Recognized technical authority with the ability to influence system architecture across teams or domains.
• Track record of delivering high impact projects with significant architectural ownership.
• Mastery of multiple languages and paradigms; able to guide complex trade offs and tech decisions.
• Extensive experience scaling systems to handle high throughput and low latency.
• Strong ability to mentor, elevate peers and lead cross team technical initiatives.
• Proven experience driving quality, reliability and operational excellence at scale.
• Strategic thinking with the ability to align technical direction with company goals.
• Thought leadership in areas such as distributed systems, functional programming or cloud native architecture.

Nice to have

• Deep operational knowledge of AWS, including cost aware system design.
• Contributions to engineering culture, hiring or organisational development.
• Expertise in Scala and/or functional programming patterns.

Rewards & Benefits

Competitive salary packages featuring pension, health care, life assurance, laptop and access to extensive training resources and discounts within the larger Tata network. Health and wellness initiatives and sports events, including partnership with local communities in Ireland.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the Ireland Employment Equality Acts (as amended) and the Equal Status Acts (as amended). 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 to request an interview or adjustment to the application process.