Senior Full Stack Developer

We're looking for a Senior Full Stack Developer to join a technology function that's in the middle of an exciting modernisation journey. This is a hands on, senior individual contributor role where you'll help modernise business critical systems, improve engineering standards, and deliver scalable, cloud first solutions.

You'll work across both legacy and modern platforms, taking ownership of complex technical challenges end to end. This role is ideal for someone who enjoys solving real world problems, takes pride in well designed systems, and is motivated by improving platforms and practices for the long term.

You'll have the opportunity to play a key role in modernising critical platforms, influence engineering standards, and work alongside experienced engineers, architects and product teams - all while remaining hands on with the technology., * Design, build and support full stack applications using .NET, React and Azure

• Take ownership of complex deliverables across the full software development lifecycle
• Build and maintain scalable REST APIs, front end components, business services and system integrations
• Contribute to microservices design and evolution (and micro frontends where appropriate)
• Work on business critical workflows involving transactions, validation and data integration
• Incrementally modernise legacy and monolithic systems, reducing technical debt pragmatically
• Ensure solutions align with architecture, security, risk and compliance standards
• Write clean, maintainable, well tested and well documented code
• Contribute to automated testing, CI/CD pipelines and release processes
• Investigate and resolve live incidents and performance issues, carrying out root cause analysis
• Participate actively in code reviews, design discussions and technical decision making
• Mentor and support less experienced developers
• Champion good engineering practice across quality, security, resilience and supportability

The technology environment

You'll be working within a predominantly .NET based estate supported by modern cloud and DevOps tooling, including:

• Azure and Azure DevOps
• Docker and containerised development
• SQL based relational databases
• Modern data platforms (e.g. Snowflake, Microsoft Fabric)
• Orchestrated pipelines embedded into live products

While deep analytics expertise isn't required, an understanding of how applications integrate with data platforms is important.

• Strong commercial experience building web applications with .NET / .NET Core
• Excellent knowledge of C#, ASP.NET Core, REST APIs, MVC, LINQ and Entity Framework
• Strong front end experience with React, including component based architecture
• JavaScript and/or TypeScript experience
• Experience with state management (Redux, Context API or similar)
• Proven experience building and supporting scalable, production grade systems
• Strong SQL and relational database experience
• Experience working in cloud hosted or hybrid environments (Azure preferred)
• CI/CD pipelines and modern DevOps practices
• Secure development principles (authentication, authorisation, API security)
• Unit testing and automated quality practices
• Agile delivery experience (Scrum, Kanban or similar)
• Comfortable supporting live systems and responding to incidents
• Strong problem solving skills and the ability to work in large or unfamiliar codebases
• Clear communication skills and a collaborative, low ego mindset

Desirable:

• Experience modernising legacy or monolithic systems
• Exposure to event driven architectures
• Experience with workflow driven or data centric platforms
• Experience in environments requiring high resilience, auditability and data quality
• Experience working with distributed engineering teams
• Degree in a relevant technical discipline

We offer a comprehensive benefits package to support your wellbeing and lifestyle, including:

• 28 days holiday plus bank holidays (pro rata)
• Contributory pension, including life assurance, and income protection
• Informal hybrid working arrangements, combining in-office and remote/home working.
• Additional leave: 2 paid volunteering days per year and family-friendly policy
• Wellbeing support, including our Employee Assistance Programme
• On-site gym and parking at Stuart House, Peterborough
• Reward Gateway scheme - Smart Spending App
• Salary-sacrifice options including private medical insurance, car scheme, and holiday purchase scheme
• Learning and development opportunities
• Executive coaching and mentoring available to all colleagues

Join the Frontline Group - Making the Complex Simple Frontline Group is made up of three dynamic business units-Frontline Distribution Solutions, Frontline Retail Solutions, and Gold Key Media-supported by key enabling functions. United by our mission to 'Make the Complex Simple', we're the UK's leading retail sales, marketing, and distribution company, with a strong presence in publishing and home entertainment. Who We Work With We partner with iconic UK magazine publishers, representing titles like Radio Times, Good Housekeeping, TV Choice, Heat, Top Gear, Grazia, Vogue, Cosmopolitan, Empire, National Geographic, and many more. We also work with major film studios to manage DVD distribution in grocery retail: and run the book category for retailers such as Morrisons and Waitrose. We are currently expanding into additional categories such as music, collectables and other exciting products. At Gold Key Media we work closely with key venues such as four and five star hotels, airport lounges and world famous events internationally. What We Do We collaborate with UK and international retailers, wholesalers, and supply chain partners to deliver on our clients' commercial goals with the vision to be the most valued Distribution and Retail solutions partner. Through Gold Key Media, we also manage premium brand placements across global events, travel hubs, and hospitality venues. Who We Are Jointly owned by Bauer Media and Immediate Media Company (Hubert Burda Media), Frontline Group offers career opportunities across a wide range of business areas. We're passionate about developing talent and have a strong track record of helping our people grow and thrive. Our Culture Our teams are made up of trusted industry professionals. We celebrate diversity and ensure everyone feels welcomed, valued, and empowered to be their authentic selves. Our I ACT values-Impact, Ambition, Collaboration, and Trust-drive sustainable performance, business growth, continuous innovation, and a happy work environment. Curious what it's like to work here? Hear directly from our people.