Full-time

Principal React Engineer

Posted by Ocho People • Belfast, Northern Ireland, United-Kingdom

📍 Belfast, Northern Ireland 🕒 March 02, 2026

About the Role

Principal Front-End Engineer (React)

Experience level: 10+ years

Have you spent years building front-end systems that scale - and now want a role where your decisions genuinely shape how products and teams operate?

My client is looking for a Principal React Engineer to take ownership of front-end architecture, set engineering standards, and act as a technical authority across multiple product teams. This role is for someone who still enjoys writing code, but whose real impact comes from designing systems, mentoring engineers, and influencing technical direction .


What you'll be responsible for

  • Owning and evolving the front-end architecture across complex React applications

  • Defining standards for performance, accessibility, testing, and maintainability

  • Leading technical decision-making and architectural reviews <...

Ready to Apply?

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