Senior Frontend Developer

EPAM; Belfast; On-site; GBP 45,000 - 60,000; Full time

Job summary

A leading global provider of digital platform services is seeking a Senior Frontend Developer proficient in React, Relay, GraphQL, and C#. The ideal candidate will develop user-friendly interfaces and efficient APIs for engagement with financial data. This role offers a Private Healthcare Package, Pension, and a diverse working environment in Belfast.

Benefits

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

Qualifications

• Proven experience over 3 years in building web applications using React and Relay.
• Strong knowledge of GraphQL API development and query optimization.
• Experience with C# and SQL.

Responsibilities

• Develop intuitive, scalable front-end applications using React and Relay.
• Design and build efficient API solutions using GraphQL.
• Collaborate with backend developers to integrate C#-based services.

Skills

React

Relay

GraphQL

C#

Job description

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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 an innovative Senior Frontend Developer proficient in React, Relay, GraphQL, and C# to build user-friendly interfaces and efficient APIs for engagement with our AWS Data Lake. You'll create dynamic front-end tools tailored for financial data insights while collaborating closely with the backend team.

RESPONSIBILITIES

• Develop intuitive, scalable front-end applications using React and Relay, integrated with API frameworks
• Design and build efficient API solutions using GraphQL, ensuring seamless access to data lake resources
• Collaborate with backend developers to integrate C#-based services with the front end
• Ensure responsive UI design and consistency across devices and browsers
• Optimize API performance for efficient real-time querying
• Participate in user testing and iterate based on feedback to improve usability

REQUIREMENTS

• Proven experience over 3 years in building web applications using React and Relay (or similar technologies)
• Strong knowledge of GraphQL API development and query optimization
• Experience with C# and SQL, particularly for interfacing with data-backed applications
• Understanding of front-end state-management libraries and best practices
• Strong user-focused design principles

NICE TO HAVE

• Experience in financial applications

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