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EPAM Systems

Senior UI Engineer (9-month contract)

On site

Belfast, United kingdom

Senior

Freelance

10-02-2026

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Skills

Communication JavaScript TypeScript CSS Jira Figma Risk Management Version Control Problem-solving Attention to detail git react AWS Agile Nextjs

Job Specifications

First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming the financial services sector. Our global teams span across 15 offices serving clients across EMEA, North America and APAC.

As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by empowering operational insights, driving innovation, and enabling more effective risk management in an increasingly data-centric world. Together with EPAM, we combine deep industry expertise with cutting-edge technology to help clients stay ahead in a rapidly evolving financial landscape, offering comprehensive solutions that drive business transformation and sustainable growth.

 

 

We are seeking a Senior UI Engineer to join our team and drive the development of high-quality, web-based user interfaces.

This role offers the opportunity to collaborate with cross-functional teams, contribute to agile processes and deliver solutions that address real business needs.

 

Responsibilities

Design, develop and maintain web-based user interfaces using Typescript and React
Ensure high-quality code through automated testing, with a focus on integration and unit tests
Collaborate with Business Analysts, QA engineers and Project Managers to deliver business-driven solutions
Wireframe user interfaces for rapid prototyping and feedback
Demonstrate T-shaped skills by contributing across development areas and supporting team skill growth
Participate in agile ceremonies and foster an agile mindset within the team
Maintain detailed documentation of code, processes and system configurations
Work closely with stakeholders to create user interfaces that solve business problems
Apply attention to detail and manage complexity under pressure

Requirements

Minimum 3 years of professional web application development
Recent experience with React functional components; experience with other frameworks may be considered
Knowledge of Typescript, JavaScript and moderate CSS proficiency
Experience writing integration and unit tests for user interfaces
Experience designing and building systems using a contract-first methodology is preferred
Familiarity with wireframing tools such as Figma or similar
Experience with isomorphic frameworks such as NextJS is preferred
Experience with mono-repo tooling such as NX or yarn workspaces is preferred
Understanding of UX and UI accessibility principles
Proficiency in using Git for version control and JIRA for backlog management
Experience working in agile environments and a strong agile mindset
Strong communication skills, both written and verbal
Excellent problem-solving skills and the ability to think critically and creatively
Knowledge of AWS software solutions is beneficial

 

We offer

Private Healthcare Package
Pension
Employee Assistance Programme
Enhanced Maternity policy
Group Life Protection Benefit
Give as You Earn
Cycle to Work Scheme
Employee Referral Bonus Scheme
Diversity Networks
Access to a range of skills and certifications

About the Company

Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has used its software engineering expertise to become a leading global provider of digital engineering, cloud and AI-enabled transformation services, and a leading business and experience consulting partner for global enterprises and ambitious startups. We address our clients’ transformation challenges by fusing EPAM Continuum’s integrated strategy, experience and technology consulting with our 30+ years of engineering execution to speed our clients’ time to market and drive greate... Know more