Senior Frontend Developer in Lisburn

Senior Frontend Developer in Lisburn

Lisburn Full-Time 60000 - 80000 € / year (est.) Home office (partial)
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At a Glance

  • Tasks: Own and develop a modern frontend application in a dynamic tech environment.
  • Company: High-growth technology company focused on innovative, data-heavy applications.
  • Benefits: Competitive salary, hybrid work model, and opportunities for career advancement.
  • Other info: Join a strong engineering culture with clear paths for growth into leadership roles.
  • Why this job: Take ownership of impactful projects and work with cutting-edge technologies.
  • Qualifications: 5+ years of experience in frontend development, especially with React and TypeScript.

The predicted salary is between 60000 - 80000 € per year.

We’re working with a high-growth technology company building complex, data-heavy applications used in real-world, mission-critical environments. They’re looking to hire a Senior Frontend Engineer who is operating at the top end of senior level — someone ready to own a frontend application end-to-end within a broader platform.

The Role

You’ll play a key role in building and owning a modern frontend application within a multi-app monorepo architecture, contributing to highly interactive, data-intensive user experiences. This is a hands-on role with real ownership, where you’ll take responsibility for a defined application and drive it from development through to production and optimisation.

Expect to work on:

  • Complex workflows involving large datasets and real-time interactions
  • Performance-critical interfaces with a strong focus on usability and scalability
  • Modern frontend architecture across React and Next.js applications

What You’ll Be Doing

  • Own and develop a frontend application within a shared monorepo environment
  • Build and maintain high-performance React applications using TypeScript
  • Collaborate closely with backend, product, and design teams
  • Design scalable, type-safe interfaces across frontend and backend
  • Optimise performance (bundle size, loading speed, Web Vitals)
  • Drive best practices in testing, code quality, and architecture
  • Contribute to technical decisions and frontend standards

Tech Environment

  • React + TypeScript (core stack)
  • Next.js / Vite
  • Monorepo architecture (Turbo, pnpm)
  • TanStack ecosystem (Query, Router)
  • tRPC (type-safe APIs)
  • AWS (Lambda, CDK)
  • Testing: Playwright, Vitest

What They’re Looking For

  • Strong experience building production-grade frontend applications (5+ years)
  • Deep expertise in React and modern SPA architecture
  • Experience working in monorepos or multi-application environments
  • Proven ability to own features or applications end-to-end
  • Strong product mindset and ability to work cross-functionally
  • Comfortable balancing performance, scalability, and maintainability

Nice to have:

  • TanStack, tRPC, or Next.js experience
  • AWS experience (especially CDK / serverless)
  • Frontend performance optimisation experience

Why Join

  • High ownership role — own a frontend app within a larger platform
  • Work on technically challenging, data-heavy applications
  • Strong engineering culture with modern tools and practices
  • Clear scope for growth into Staff / Lead territory

Senior Frontend Developer in Lisburn employer: Diver5ify

Join a high-growth technology company in Belfast that champions a strong engineering culture and offers a high ownership role for Senior Frontend Developers. With opportunities to work on complex, data-heavy applications and a clear path for career advancement into Staff or Lead positions, this is an ideal environment for those seeking meaningful and rewarding employment. Enjoy a collaborative atmosphere with modern tools and practices, all while making a significant impact on mission-critical projects.

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Contact Detail:

Diver5ify Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Frontend Developer in Lisburn

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work at companies you're interested in. A friendly chat can lead to referrals, which can give you a leg up in the hiring process.

Tip Number 2

Show off your skills! Create a portfolio showcasing your best frontend projects, especially those using React and TypeScript. This is your chance to demonstrate your expertise and passion for building high-performance applications.

Tip Number 3

Prepare for technical interviews by brushing up on your coding skills and understanding of modern frontend architecture. Practice common algorithms and data structures, and be ready to discuss your past projects and the decisions you made.

Tip Number 4

Don’t forget to apply through our website! We’re always on the lookout for talented individuals like you. Plus, it’s a great way to ensure your application gets the attention it deserves.

We think you need these skills to ace Senior Frontend Developer in Lisburn

React
TypeScript
Next.js
Monorepo Architecture
Performance Optimisation
Usability and Scalability
Cross-Functional Collaboration

Some tips for your application 🫡

Show Your Ownership Spirit:When writing your application, make sure to highlight your experience in owning frontend applications. We want to see how you've taken charge of projects from start to finish, so share specific examples that showcase your responsibility and impact.

Be Specific About Your Skills:Tailor your application to reflect your expertise in React, TypeScript, and modern SPA architecture. We’re looking for someone who can hit the ground running, so don’t hold back on detailing your technical skills and experiences that align with our needs.

Collaborate and Communicate:Since this role involves working closely with backend, product, and design teams, emphasise your collaborative experiences. Share instances where you’ve successfully worked cross-functionally to deliver high-quality user experiences.

Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. Plus, it shows you’re keen to join our team!

How to prepare for a job interview at Diver5ify

Know Your Tech Stack Inside Out

Make sure you’re well-versed in React, TypeScript, and Next.js. Brush up on your knowledge of monorepo architecture and performance optimisation techniques. Be ready to discuss how you've used these technologies in past projects and how they can be applied to the role.

Showcase Your Ownership Experience

Prepare examples that highlight your ability to own a frontend application from development to production. Discuss specific challenges you faced and how you overcame them, especially in complex workflows or data-heavy applications. This will demonstrate your readiness for a high-ownership role.

Collaborate Like a Pro

Since this role involves working closely with backend, product, and design teams, think of examples where you’ve successfully collaborated across functions. Highlight your communication skills and how you’ve contributed to team success in previous roles.

Be Ready to Discuss Best Practices

Familiarise yourself with best practices in testing, code quality, and architecture. Be prepared to share your thoughts on how to implement these in a real-world setting, and maybe even suggest improvements based on your experience. This shows you’re not just a coder but a thoughtful engineer.