Senior Consultant - Full-stack Developer - DE - TC - UKI - Belfast

The opportunity

EY is actively growing our Digital Engineering team in Belfast and is expanding our full-stack engineering capability. This is a fantastic opportunity for a highly capable developer who is ready to operate at a senior level, combining hands-on delivery with technical leadership, mentorship, and ownership of complex systems. We are looking for someone who is ready to challenge themselves by learning new technologies, lead developer teams and understand a product from end to end.

Your key responsibilities

• Actively participate and own the design, development and delivery of full stack products from user interfaces through to the supportive backend databases
• Build and maintain responsive, high-quality user interfaces using modern frameworks such as React, Angular or Vue.
• Design and implement robust APIs and services, ensuring security, reliability and maintainability.
• Work closely with product teams to understand complex business requirements and translate them into technical solutions.
• Present delivered features and technical solutions confidently to stakeholders and clients.
• Perform thorough peer code reviews, providing constructive feedback and maintaining high engineering standards.
• Support and lead non-functional improvements, including technical debt reduction, performance optimisation and creation of clear API documentation.
• Provide technical mentorship and guidance to junior developers, promoting a culture of continuous improvement and engineering excellence.

Skills and attributes for success

• Strong professional full-stack development experience, with increasing levels of responsibility.
• Strong experience with JavaScript or TypeScript and modern front-end frameworks such as React, Angular or Vue.
• Strong backend development experience using , Java, Python, .NET or similar technologies.
• Proven ability to design and build scalable APIs and distributed systems.
• Solid experience with relational databases such as PostgreSQL or MySQL.
• Experience with testing frameworks, unit testing, integration testing and automated testing strategies.
• Strong understanding of software development best practices, system design, maintainability and code quality.
• Experience working in agile, cross-functional teams and contributing to delivery planning and estimation.
• Experience with cloud platforms such as AWS, Azure or GCP, CI/CD pipelines or DevOps practices would be beneficial.
• Exposure to NoSQL databases, microservices or event-driven architectures would be desirable.

To qualify for the role, you must have

• Strong leadership and technical decision-making ability.
• Excellent problem-solving skills with a proactive approach to challenges.
• Confident communicator, able to engage with both technical and non-technical stakeholders.
• A mentor mindset with a passion for developing others and raising team capability.
• High level of ownership, accountability and attention to detail.

What we look for

We’re interested in candidates who can take end-to-end ownership of complex features and systems, balancing hands-on engineering with technical leadership. You should bring a strong voice in shaping how the team builds, delivers and scales software, with a proven ability to improve code quality, team processes and system architecture. If you’re serious about joining Digital Engineering and ready to help deliver meaningful, scalable solutions for our clients, this role is for you.

What working at EY offers
We offer a competitive remuneration package where you’ll be rewarded for your individual and team performance. Our comprehensive Total Rewards package includes support for flexible working and career development, and with FlexEY you can select benefits that suit your needs, covering holidays, health and well-being, insurance, savings and a wide range of discounts, offers and promotions. Plus, we offer:

• Support, coaching and feedback from some of the most engaging colleagues around
• Opportunities to develop new skills and progress your career
• The freedom and flexibility to handle your role in a way that’s right for you