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- Tasks: Design and develop complex user-facing applications with cutting-edge technologies.
- Company: Join Walr, a fast-growing data collection company redefining the industry.
- Benefits: Enjoy competitive salary, remote work options, and opportunities for professional growth.
- Why this job: Make a real impact while working with innovative tech in a supportive team environment.
- Qualifications: 5+ years in frontend development with expertise in TypeScript and ReactJS.
- Other info: Be part of a diverse team that values inclusion and celebrates collective success.
The predicted salary is between 48000 - 72000 £ per year.
Walr is the service-first data collection company built for the fast and the ambitious. Founded in 2020, we exist to elevate the role of the market researcher – not by adding more tools to juggle, but by removing the operational heavy lifting so teams can focus on what truly matters: insight, impact, and confidence. What sets Walr apart is relentless speed, obsessive service, and dedicated experts who show up every day for our clients and each other. We’re a high-growth scale-up with 170+ employees across 9 countries, having doubled our headcount in 2025. At Walr, we’re redefining data collection through unmatched speed, obsessive service, and human expertise that others simply can’t match. Technology powers our momentum, but people make the difference. Here, you’ll be trusted to take ownership, encouraged to think boldly, and backed by a team that moves fast—together. If you want impact, growth, and the chance to build something that truly matters, Walr is the place to be.
As a Senior Software Engineer, Frontend, you’ll design, develop, and lead the delivery of complex user-facing applications across the Walr Platform. You’ll set technical standards for frontend engineering, mentor peers, and ensure our interfaces are accessible, performant, and a pleasure to use. This role is about leadership in execution, ownership of outcomes, and shaping your product’s future.
Key Responsibilities- Technical Excellence
- Lead the design and delivery of complex frontend applications with TypeScript, ReactJS, and modern CSS, setting and upholding standards that promote maintainable, scalable code.
- Build high-performance, responsive, and accessible (WCAG) user interfaces that function seamlessly across browsers and devices.
- Drive architectural discussions on component design, state management, and frontend infrastructure, balancing technical excellence with business priorities.
- Champion and evolve Walr’s component library and design system, ensuring consistency and reusability across product areas.
- Execution & Ownership
- Take ownership of frontend system health, proactively identifying and resolving performance bottlenecks, build tooling issues, and technical debt.
- Oversee the maintenance and evolution of frontend build systems, including bundling, transpiling, linting, and testing toolchains.
- Collaboration
- Collaborate across teams – product, design, backend, QA, and customer success – to deliver solutions that delight clients and drive business value.
- Mentor and coach engineers, multiplying team capability and contributing to a high-performance engineering culture through code reviews, pairing, and knowledge sharing.
- 5+ years of experience designing and delivering complex frontend web applications.
- Expertise in TypeScript, ReactJS and Redux, with a strong focus on component-based architecture and state management.
- Strong understanding of modern CSS, responsive design, and accessibility standards (WCAG).
- Experience building and maintaining component libraries or design systems.
- Proficiency with frontend testing frameworks (Jest, React Testing Library, Playwright).
- Solid understanding of REST APIs and backend integration patterns.
- Experience leading technical discussions, setting direction, and influencing architectural decisions.
- Strong product mindset, connecting technical work to customer and business value.
- Skilled in DevSecOps practices including CI/CD, automation, and security.
- Excellent communication skills, particularly in translating design requirements into technical solutions and communicating effectively with both technical and non-technical audiences.
- Experience with data visualisation libraries (D3.js, Chart.js, Recharts).
- Background in UX/UI design principles and working closely with designers.
- Experience in styled components using Shadcn and Tailwind.
- Familiarity with C# and .NET, supporting smooth integration across the stack.
- Experience with cloud platforms, especially Microsoft Azure, for frontend hosting and deployment.
- Experience with AI-assisted development practices, prompt engineering for code generation, or integrating AI tools into the development workflow.
We’re building a workplace that works for everyone. We know that teams thrive when they bring together different voices, backgrounds, and perspectives — so we’re actively working to make sure everyone feels seen, heard, and valued. Whether it’s how we hire, grow talent, or shape our culture, inclusion is at the heart of what we do. If you’re passionate, curious, and ready to make an impact, you belong here.
Senior Software Engineer, Frontend employer: Walr
Contact Detail:
Walr Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Engineer, Frontend
✨Tip Number 1
Network like a pro! Reach out to current or former employees at Walr on LinkedIn. A friendly chat can give you insider info and maybe even a referral, which can really boost your chances.
✨Tip Number 2
Show off your skills in real-time! If you get the chance, ask for a technical interview or coding challenge. This is your moment to shine and demonstrate your expertise in TypeScript and ReactJS.
✨Tip Number 3
Prepare for those behavioural questions! Walr values teamwork and innovation, so think of examples where you've led projects or collaborated effectively. We want to see how you fit into their culture.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in being part of the Walr team.
We think you need these skills to ace Senior Software Engineer, Frontend
Some tips for your application 🫡
Tailor Your Application: Make sure to customise your CV and cover letter for the Senior Software Engineer role. Highlight your experience with TypeScript, ReactJS, and any relevant projects that showcase your skills in frontend development. We want to see how you can bring value to Walr!
Showcase Your Technical Skills: Don’t just list your skills; demonstrate them! Include specific examples of complex user-facing applications you've designed or led. Mention any architectural discussions you've influenced and how you've contributed to team success. This is your chance to shine!
Communicate Clearly: When writing your application, keep it clear and concise. Use straightforward language to explain your technical expertise and how it connects to business value. Remember, we appreciate good communication skills, especially when translating design requirements into technical solutions.
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 team at Walr!
How to prepare for a job interview at Walr
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in TypeScript, ReactJS, and modern CSS. Be ready to discuss your experience with these technologies and how you've used them to build complex user-facing applications. Prepare examples of your work that showcase your technical excellence and problem-solving skills.
✨Showcase Your Leadership Skills
As a Senior Software Engineer, you'll need to demonstrate your ability to lead and mentor others. Think of specific instances where you've taken ownership of projects or guided your team through challenges. Highlight your experience in architectural discussions and how you've influenced decisions in previous roles.
✨Emphasise Collaboration
Walr values teamwork, so be prepared to talk about how you've collaborated with cross-functional teams in the past. Share examples of how you’ve worked with product, design, and backend teams to deliver solutions that drive business value. This will show that you understand the importance of communication and collaboration in achieving success.
✨Connect Technical Work to Business Value
Demonstrate your strong product mindset by linking your technical expertise to customer and business outcomes. Be ready to discuss how your frontend solutions have positively impacted users and contributed to the overall goals of your previous companies. This will show that you think beyond just code and care about the bigger picture.