Staff Engineer ( JavaScript )

Ocho; Belfast; On-site; GBP 60,000 - 80,000; Full time

Job summary

A global software house in Northern Ireland is seeking a Staff JavaScript Engineer to lead the design and development of unified front-end experiences. This role offers ownership over architectural decisions and the chance to work with a high-impact engineering team. The ideal candidate will have strong expertise in React and TypeScript, with responsibilities including mentoring and collaborating across teams to optimize performance and maintainability.

Benefits

Bonus

Autonomy in decisions

Strong team culture

Qualifications

• Strong track record building production-grade applications with React and TypeScript.
• Solid understanding of state management, modular component design, and scalable front-end architecture.
• Skilled in designing and consuming RESTful or GraphQL APIs.

Responsibilities

• Lead the design and development of a unified front-end experience.
• Streamline and modernise existing applications into one cohesive product.
• Collaborate across design, product, and engineering.

Skills

React

TypeScript

JavaScript

AWS

Tools

Cypress

Playwright

Job description

The Opportunity

We\'re working with a global software house to recruit a Staff JavaScript Engineer with strong expertise in modern front-end technologies. You\'ll be joining a 54-strong engineering team based in Northern Ireland, playing a pivotal role in leading the evolution of business-critical web applications into a single, unified platform built for scale, performance, and user impact.

This role offers genuine ownership over architectural direction and technical standards, with the opportunity to shape how the front-end is delivered and experienced at scale.

What You\'ll Be Doing

• Lead the design and development of a unified front-end experience using React and TypeScript
• Streamline and modernise several existing applications into one cohesive product
• Build shared libraries and reusable infrastructure for layout, theming, authentication, navigation, and onboarding
• Collaborate across design, product, and engineering to define scalable patterns and best practices
• Optimise performance, maintainability, and accessibility across large-scale interfaces
• Set the benchmark for testing, documentation, and code quality across the team
• Contribute to the growth of the wider engineering group through mentoring, pair programming, and knowledge sharing

What We\'re Looking For

• Strong track record building production-grade applications with React and TypeScript
• Solid understanding of state management, modular component design, and scalable front-end architecture
• Skilled in designing and consuming RESTful or GraphQL APIs in collaborative environments
• Experience improving performance and reliability in large front-end codebases
• Comfortable owning large-scale initiatives and mentoring other engineers
• Excellent communicator with the ability to provide clear technical guidance across teams

Bonus Points For:

• Familiarity with monorepos or shared component systems
• Experience with end-to-end testing frameworks (Cypress, Playwright)
• Proven delivery of large-scale refactors, design system integrations, or platform migrations

What Success Looks Like

• You advocate for clean, consistent interfaces and thoughtful architecture
• You raise the bar for the entire engineering team by sharing knowledge and leading by example
• You take pride in solving real problems and shaping the experience for end users at scale
• You deliver maintainable, well-tested code and help others do the same

Why Join?

This is an opportunity to join a high-impact engineering group of 54 developers where quality and craft truly matter. You\'ll have autonomy, a strong voice in architectural decisions, and the backing of a company that values modern practices and developer experience.

Interested? Reach out to Ryan Quinn on LinkedIn or submit your CV via the link below to explore this further.

OCHO - Building Teams

Skills: JavaScript, AWS, TypeScript

Benefits: Bonus