Senior UI Engineer (Belfast, UK)

Job Title: Senior UI Engineer

Department: Engineering

Reports To: Team Lead

Working Pattern: Hybrid minimum 2 day per week in Belfast office

Location: Belfast, Northern Ireland (Role is NI based. Candidate must have right to live and work in UK)

Salary: Negotiable


Company background:


Congruity360 is headquartered in Boston with employees across the US, England and Northern Ireland. The Congruity360 flagship product, Classify360, enables clients to reduce their financial and data risk by increasing their data understanding, classification, and security, allowing clients to meet all of the current, new, and changing laws, regulations, and business drivers. In other words, making intelligent business decisions.

Job Summary:


A new product offering is emerging from concept phase, which expands our solution set from compliance and data governance into cybersecurity. This role offers the opportunity to work in emerging technologies with a primary focus on a React skillset. The successful candidate will be an integral part of a dynamic team, coding in a fast-paced development environment, generating creative solutions to solve customer needs and challenges. The successful candidate will be actively involved in driving technical decisions within the team, with a desire to produce high quality software to provide a superior client experience.


Education requirements:

• A University degree (or equivalent) in Computer Science, Mathematics, Physics, or related field

• 5+ years relevant software engineering and development experience


• Proactive attitude with great communications skills, attention to detail, self-motivated, and the ability to work well with people are essential

• 5+ years Typescript/JavaScript


• 3+ years React


• UX experience working with designers / product managers to translate requirements into intuitive interfaces


• Accessible, responsive UI development, including practical knowledge of WCAG and semantic HTML


• Experience with component libraries (React Aria, Radix or similar) and Tailwind CSS or comparable


• Experience with data-rich interfaces, including large tables, charts and visualisations


• Frontend performance optimisation, particularly for complex interfaces and large datasets


• Consuming and shaping REST APIs; state management for complex, long-lived workspaces

• Enterprise software development


• Advanced charting, data visualisation and virtualisation using tools such as D3, visx, ECharts or TanStack Table


• Architecture experience designing new products or systems


• Building and maintaining reusable component libraries and design systems


• Cybersecurity or analyst-tooling experience, including audit trails and role-based access controls


• CI/CD pipelines and AWS or Azure exposure


• Node.js development


• Vue experience


• Agile, cross-functional delivery

• Pension scheme.


• Flexible working hours and hybrid work options.


• Health insurance and wellness programs.


• Generous holiday leave and paid time off.


• Flexible working policy


• Volunteer policy

DhM7RoZYZT

WHJS1_NI