Senior Full-Stack Tech Lead — Flexible Work & Growth

Ernst & Young Advisory Services Sdn Bhd; Belfast City District; On-site; GBP 80,000 - 110,000; Full time

Benefits offered by this job

Flexible working

Career development

Total Rewards package

Job summary

EY Belfast is actively growing its Digital Engineering team and expanding full-stack engineering capability. This is a fantastic opportunity for a senior developer who combines hands-on delivery with technical leadership, mentorship, and ownership of complex systems. Ready to learn new technologies and lead teams, you will shape end-to-end product delivery.

You will collaborate with product teams, design scalable APIs, and drive best practices in a fast-paced, agile environment.

Qualifications

• Strong leadership and technical decision‑making ability.
• Excellent problem‑solving skills with a proactive approach.
• Confident communicator with stakeholders.
• Mentor mindset to develop others.

Responsibilities

• Actively participate and own the design, development and delivery of full stack products from UI to backend databases.
• Build and maintain responsive UI using React, Angular or Vue.
• Design and implement robust APIs and services with security and reliability.
• Collaborate with product teams to translate complex requirements into technical solutions.
• Present features and solutions to stakeholders and clients.
• Perform thorough peer code reviews and maintain engineering standards.
• Support non-functional improvements including technical debt reduction and API documentation.
• Provide mentorship to junior developers and promote engineering excellence.

Skills

Full stack development

Backend development

APIs & distributed systems

Relational databases

Testing frameworks

Agile, cross-functional teams

Cloud platforms (AWS, Azure, GCP)

DevOps / CI-CD

NoSQL databases

Tools

React

Angular

Vue

Job description

EY Belfast is actively growing its Digital Engineering team and expanding full-stack engineering capability. This is a fantastic opportunity for a senior developer who combines hands-on delivery with technical leadership, mentorship, and ownership of complex systems. Ready to learn new technologies and lead teams, you will shape end-to-end product delivery.

You will collaborate with product teams, design scalable APIs, and drive best practices in a fast-paced, agile environment.