Lead Frontend Architect – Real-Time Trading UI

TP ICAP; Belfast City District; Hybrid; GBP 75,000 - 110,000; Full time

Job summary

TP ICAP in Belfast is seeking a Senior Frontend Engineer to own the React/TypeScript architecture for a high-scale trading platform. You will set patterns, drive quality, and ensure delivery across multiple workstreams.

You will mentor engineers and collaborate with product, architects, and backend teams to shape the roadmap. The role requires strong leadership and a passion for scalable frontend systems.

Qualifications

• Deep React + TypeScript expertise and scalable architecture decisions.
• Strong experience with Redux in data-intensive UIs and performance at scale.
• Experience designing and maintaining monorepo architecture with clear package boundaries.
• Production GraphQL experience — schema design, caching, subscriptions, codegen.
• Testing strategies across unit, integration, and browser layers.
• Frontend observability and performance tooling experience.

Responsibilities

• Own the frontend architecture: define component boundaries, state management patterns, and data-flow contracts.
• Drive technical strategy for the platform — evaluate tools, migrations, and build-vs-buy decisions.
• Set and enforce engineering standards: testing strategy, code quality, observability.
• Design solutions for real-time data rendering at scale and efficient Redux-saga orchestration.
• Lead delivery across multiple workstreams and ensure consistency.
• Mentor Senior Engineers and foster architectural collaboration across teams.
• Collaborate with Product, Architects, and backend teams to shape roadmap priorities.

Skills

React

TypeScript

Redux

Monorepo

GraphQL

Testing

Observability

Mentoring

Communication

Tools

Turborepo

pnpm

Vitest

Playwright

MSW

Apollo Client

OpenTelemetry

Grafana

Job description

TP ICAP in Belfast is seeking a Senior Frontend Engineer to own the React/TypeScript architecture for a high-scale trading platform. You will set patterns, drive quality, and ensure delivery across multiple workstreams.

You will mentor engineers and collaborate with product, architects, and backend teams to shape the roadmap. The role requires strong leadership and a passion for scalable frontend systems.