Senior Frontend Engineer in Hereford

About The Role

The Opportunity

MandM is evolving how we deliver digital experiences, combining customer‑centric delivery with modern frontend engineering. As we restructure our team and build empowered, cross‑functional squads, we are looking for a Senior Frontend Engineer (React / Next.js) who will serve as a highly experienced problem solver and lead the planning and execution of our user‑facing applications and services. We need a Senior Engineer who is prepared to take true responsibility, exercise immense initiative, come to the table with fresh ideas, and completely own their space. You will set the standard for frontend architecture, taking applications from concept to production while balancing system robustness, resilience, and stability. Able to operate with minimal supervision, you will actively influence our technical direction, mentor junior talent, and partner with Staff Engineers to deliver a measurable impact on quality standards and user value.

Who Are we?

MandM is one of the biggest employers in Herefordshire and one of Europe’s leading online, off‑price retailers, selling branded Fashion, Sport & Outdoor products for Men, Women and Children. We offer our customers fantastic value by partnering with companies we have built long‑term relationships with, enabling us to offer our customers big household names and up‑and‑coming brands, giving fantastic value all year round. We are located in the heart of Hereford City Centre in our brand new, state of the art office. The modern, stylish workspace was designed to encourage collaborative working, teamwork and creativity – everything that MandM is all about. As our business continues to grow we are recruiting for a talented Senior Frontend Engineer to join our growing team.

More than a role

• Competitive Salary: Your talent deserves recognition
• Giving Back: 2 days paid volunteering to support a cause you care about
• Career Growth: Opportunity to grow
• Staff Discounts: Stay stylish with our exclusive discounts
• Company Pension: Secure your financial future
• Generous Holiday Allowance: Enjoy 5 weeks of well‑deserved breaks. You even have the option to buy an extra week
• Birthday Delight: Take your special day off to celebrate YOU
• Free Parking
• Health & Wellbeing programme: we’ll look after you

The Role Scope

You will undertake the planning and leading of customer‑centric delivery, translating complex system requirements into robust, scalable, and highly accessible frontend digital experiences. Operating within our product model, you will independently drive the engineering lifecycle from architecture to live production operations, ensuring all solutions optimize performance and elevate the customer experience. We practice a "shift‑left" testing philosophy here. With the support and guidance of Test Engineers, you’ll be responsible for the testing and quality of your code.

Role key responsibilities

• Architecture, Scaling & UI Excellence: Architect scalable React / Next.js applications and define clear component boundaries. Evolve the organization’s React / Next.js architecture standards and shared component library to govern consistency across multiple product teams. Lead high‑impact efforts to improve state management and application performance, including bundle size and rendering.
• Quality Ownership & "Shift-Left" Testing: Fully own the testing lifecycle of your deliverables, driving quality upstream rather than treating it as an afterthought. Write exceptionally clean, well‑tested code, establishing comprehensive unit tests as a non‑negotiable standard. Collaborate with Staff Engineers to define the overarching SDLC, Test Strategy, and Definition of Done across teams.
• Roadmap, Initiative & Cloud Operations: Proactively pitch technical initiatives and architectural ideas; do not just execute, but actively define the technological direction for the frontend stack. Drive critical architectural decisions affecting agility, speed of delivery, and scaling across the UI layer. Take financial and operational responsibility for GCP costs and performance specifically related to user‑facing assets.
• Evidence-Based Accessibility & Mentorship: Act as our accessibility champion, ensuring all UI solutions meet strict digital accessibility compliance standards. Bring real, referenceable evidence of championing accessibility best practices in previous modern frontend ecosystems. Adopt "AI-Pair Programming" and agentic workflows to accelerate coding, while maintaining mandatory review frameworks for AI‑generated code. Actively mentor and coach more junior colleagues, fostering a high‑performing, quality‑focused, and customer‑aware engineering culture.

About You

What we’re looking for

• Core Frontend Leadership: Demonstrated experience working as a highly experienced problem solver leading the delivery of customer‑centric applications with minimal supervision. You are a self‑starter who takes complete ownership of outcomes rather than waiting for direction.
• React & Next.js Expertise: Deep, mandatory production experience building large‑scale applications explicitly using React and Next.js.
• Testing Mindset: A passionate advocate for "shift-left" engineering who takes personal accountability for the testing phase, backed by extensive experience writing robust unit tests.
• Accessibility Champion: A proven history of building user interfaces that adhere strictly to accessibility standards, with clear evidence of having successfully championed these practices within an engineering team.
• Production Operations & Design: Extensive experience operating live production services, translating logical designs into physical system designs, and actively improving system robustness and resilience.
• AI Workflow Alignment: Practical experience in adopting 'AI-Pair Programming' and applying existing AI models to day‑to‑day engineering workflows while maintaining critical technical expertise.
• Cross-Team Collaboration: Experience collaborating with multidisciplinary teams and a proven track record of effectively coaching and mentoring junior developer talent.

Why Join MandM?

Be part of an evolving team where your ideas are valued, your initiative is expected, and your contribution directly shapes the technical roadmap. Own the end‑to‑end architecture and UI scalability on initiatives that directly impact live production applications for millions of customers. Enjoy an excellent opportunity to grow your engineering leadership, with a major focus on shaping engineering culture through technical mentoring and coaching.

About Us

Our Values

• Integrity
• Teamwork
• Accountability
• Entrepreneurial approach