Senior Frontend Developer in Cardiff

Senior Frontend Developer in Cardiff

Cardiff Full-Time 63000 - 77000 £ / year (est.) Home office (partial)
Digital Waffle

At a Glance

  • Tasks: Lead the design and delivery of customer-facing applications using React/Next.js.
  • Company: Join a forward-thinking tech company that values innovation and collaboration.
  • Benefits: Competitive salary up to £70k, remote work options, and opportunities for professional growth.
  • Other info: Dynamic environment focused on continuous learning and engineering excellence.
  • Why this job: Make a real impact by mentoring engineers and shaping technical direction.
  • Qualifications: Strong experience with React/Next.js and a passion for user-centred design.

The predicted salary is between 63000 - 77000 £ per year.

We’re looking for an experienced Frontend Engineer (React/Nextjs) to lead the design, delivery and continuous improvement of customer-facing applications and services.

You’ll work with a high degree of autonomy, influence technical direction, mentor engineers, and help build a culture focused on customer value, engineering excellence and continuous learning.

Role: Senior Frontend Engineer

Key Responsibilities

  • Lead customer-focused delivery, prioritising incremental value and a test-and-learn approach.
  • Mentor and coach engineers, raising technical quality and engineering standards.
  • Design and evolve scalable React / Next. js applications and shared component libraries.
  • Define frontend architecture, technical direction and development standards across teams.
  • Drive improvements in performance, scalability, accessibility, security and reliability.
  • Monitor and optimise frontend performance, bundle sizes, rendering and client-side health.
  • Improve state management and component architecture across large-scale applications.
  • Champion modern engineering practices, including AI-assisted development and agentic workflows, with appropriate code review and quality controls.
  • Work closely with product, design, research and engineering teams to translate user needs into effective technical solutions.
  • Support production services, diagnose complex issues and improve system resilience and stability.
  • Contribute to SDLC, testing, quality standards and across engineering teams.
  • What You’ll Bring
  • Strong commercial experience building and operating React / Next. js applications.
  • Excellent understanding of frontend architecture, component design and modern development practices.
  • Proven experience improving web performance and frontend scalability.
  • Strong systems-thinking and problem-solving skills.
  • Experience mentoring engineers and influencing technical decisions across teams.
  • A customer-focused mindset with a commitment to accessibility and user-centred design.
  • Experience working with cloud platforms such as GCP, including consideration of cost and performance.
  • Understanding of SRE principles, monitoring and production support.
  • Excellent communication skills and the ability to bridge technical and non-technical perspectives.
  • A proactive approach to learning, experimentation and continuous improvement.
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Senior Frontend Developer in Cardiff employer: Digital Waffle

Digital Waffle is an exceptional employer, offering a dynamic work culture that prioritises innovation and collaboration in the energy sector. Employees benefit from ongoing professional development opportunities, competitive compensation, and a commitment to sustainability, making it a rewarding place to contribute to the UK's critical infrastructure. Join us to be part of a team that values your expertise and empowers you to make a meaningful impact on the future of energy security.

Digital Waffle

Contact Details:

Digital Waffle Recruitment Team

StudySmarter Expert Advice🤫

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

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Digital Waffle or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Digital Waffle.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Digital Waffle.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Digital Waffle that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

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

React
Next.js
Frontend Architecture
Component Design
Web Performance Optimisation
Scalability Improvement
Systems Thinking

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Digital Waffle.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Digital Waffle and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Digital Waffle

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Digital Waffle uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.