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For Companies 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 building innovative, performance-critical user experiences.
- Qualifications: 5+ years of experience in frontend development with strong React skills.
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 Belfast employer: Diver5ify
Contact Detail:
Diver5ify Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Frontend Developer in Belfast
✨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, applying directly can sometimes speed up the process and get your application in front of the right people faster.
We think you need these skills to ace Senior Frontend Developer in Belfast
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with React, TypeScript, and any other relevant tech in your application. We want to see how you've tackled complex frontend challenges and what makes you a standout candidate!
Tailor Your Application: Don’t just send a generic CV! Customise your application to reflect the specific requirements of the Senior Frontend Engineer role. We love seeing how your past experiences align with our needs, especially in high-ownership projects.
Be Clear and Concise: When writing your cover letter or personal statement, keep it straightforward. We appreciate clarity and directness, so get to the point about why you're the perfect fit for this role and how you can contribute to our team.
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 the role. Plus, it shows you’re keen on joining our awesome 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 the TanStack ecosystem. Being able to discuss your past experiences with these technologies will show that you’re ready to take ownership of a frontend application.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in previous projects, especially those involving complex workflows or performance optimisation. Use examples that highlight your ability to balance usability and scalability, as this is crucial for the role.
✨Demonstrate Collaboration Experience
Since this role involves working closely with backend, product, and design teams, be ready to share examples of how you’ve successfully collaborated in the past. Highlight your communication skills and how you’ve contributed to cross-functional projects.
✨Prepare Questions About Ownership and Growth
Think about what owning a frontend application means to you and how you envision contributing to the team. Ask insightful questions about their engineering culture and opportunities for growth into Staff or Lead roles, showing your enthusiasm for the position.