At a Glance
- Tasks: Own and develop a modern frontend application in a dynamic tech environment.
- Company: High-growth technology company focused on complex, data-heavy applications.
- Benefits: Competitive salary, hybrid work model, and opportunities for career advancement.
- Other info: Join a strong engineering culture with modern tools and clear growth paths.
- Why this job: Make a real impact by owning a frontend app and tackling challenging projects.
- Qualifications: 5+ years of experience in building production-grade frontend applications with React.
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 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 the benefits of a hybrid work model, collaboration with cross-functional teams, and the chance to drive best practices in modern frontend development.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Frontend Developer
✨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
Apply through our website! We make it easy for you to find roles that match your skills and interests. Plus, it shows you're genuinely interested in joining our team and helps us get to know you better right from the start.
We think you need these skills to ace Senior Frontend Developer
Some tips for your application 🫡
Show Your Ownership Spirit:In 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 demonstrate your ability to drive a project through development and into production.
Be Specific About Your Tech Skills:When listing your skills, be clear about your expertise in React, TypeScript, and any other relevant technologies. We’re looking for someone who can hit the ground running, so don’t hold back on showcasing your technical prowess and any experience with monorepos or multi-app environments.
Emphasise Collaboration:Since this role involves working closely with backend, product, and design teams, it’s important to mention your collaborative experiences. Share how you’ve worked cross-functionally in the past and how you’ve contributed to building high-performance applications together with others.
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 gives you a chance to explore more about our culture and values!
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 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, particularly in relation to performance-critical interfaces and type-safe APIs.
