Junior Full Stack Developer

No day will be the same - here are some of the highlights

Ready to build your development career and help power a cleaner future?

Join our IT & Digital department as a Junior Full Stack Developer, working in either our Services or B2C development team to build applications that support our customers and our business.

You’ll spend most of your week building new features, working across the stack from C# backend services to Next.js and React Native applications. Our teams own what they build, so you’ll also learn to deploy and monitor your applications in Azure, seeing your work through to production.

This role is for developers early in their career. You might bring a year or two of commercial experience, or a degree, bootcamp or personal projects that show what you can do. You’ll pair regularly with experienced developers, with support from your Team Lead to help you learn, build confidence and grow.

Responsibilities:

• Feature Development: Build new features across our web, mobile and backend applications, writing clean, well-tested code in C#/.NET, TypeScript, Next.js and React Native.
• Cloud & Deployment: Learn to deploy, run and monitor your applications in Azure, seeing your work through to production.
• Development Tooling: Use Azure DevOps for boards, repos and CI/CD pipelines.
• Shaping Solutions: Work with your product manager to understand requirements and help shape practical solutions.
• Quality: Collaborate with our automation tester to make quality part of everything we ship.
• Teamwork & Learning: Take part in code reviews, pairing and Scrum ceremonies, learning from others and sharing your ideas.
• AI & Modern Tools: Use AI tools thoughtfully to work smarter, and share what you learn with the team.

Our Teams

Our three development teams each focus on a different part of the business. You’ll join either Services or B2C, working in a small, close-knit Scrum team where we share knowledge openly and support each other to grow.

• Services: The systems and integrations behind our solar installations and energy services, supporting the customer journey from sales and quoting through to onboarding and ongoing maintenance.
• B2C: Our direct-to-consumer energy supply and Feed-in Tariff (FIT) platforms for households.
• B2B: Energy supply and Feed-in Tariff (FIT) platforms for businesses.

Your team will include 3-4 software developers, including you, a Lead Developer and an Automation Tester. Each team works closely with a dedicated product manager, giving you plenty of opportunities to collaborate and learn.

What you'll need to succeed

You’ll bring some experience with C#/.NET, JavaScript, TypeScript and React and/or Next.js, along with curiosity and an interest in how things work from end to end. You’ll be keen to learn, comfortable asking questions and ready to put feedback into practice.

You’ll enjoy working with others and communicating clearly, with experience of, or a genuine interest in, using AI tools in your development workflow. We use Claude, GitHub Copilot and Azure AI Foundry, but experience with other AI tools and platforms is equally welcome.

Don’t tick every box? Please apply anyway. We care more about your potential and attitude than a perfect match to a list.

Essentials:

• Some experience with C# and .NET
• Some experience with JavaScript and TypeScript
• Some experience with React and/or Next.js
• Experience with, or a genuine interest in, using AI tools in your development workflow
• Curiosity, the ability to learn quickly and an interest in how things work from end to end
• Willingness to ask questions and act on feedback
• Good communication skills and a collaborative approach

Desirables:

• Experience with Azure or another cloud platform
• React Native or mobile app development experience
• Experience with CI/CD and modern development practices, including automated testing, code review and trunk-based development
• Experience with Azure DevOps or similar development tooling
• Experience working in an Agile or Scrum team
• Experience with databases such as SQL Server and/or Cosmos DB, or equivalent SQL/NoSQL technologies
• Knowledge of the energy sector - not required, as we’ll help you learn

Our Tech Stack

• Backend: .NET / C#
• Frontend: Next.js, React, TypeScript
• Mobile: React Native
• Cloud: Azure - Functions, App Service, Service Bus, Application Insights and more
• Data: SQL Server, Cosmos DB, Azure Table Storage, Databricks
• Tooling: Azure DevOps for work item management, repos and pipelines
• AI: Claude, GitHub Copilot, Azure AI Foundry

What success looks like

You’ll be supported throughout, with clear goals to help you build confidence and see your progress along the way.

The first 3 months:

• You’ve settled into the team and understand how we work
• You’ve set up your environment and are regularly shipping features to production
• You’re getting to grips with our stack, codebase and Azure DevOps pipelines
• You’re contributing to code reviews and Scrum ceremonies

By 6 months:

• You’re delivering features with growing independence
• You’re deploying and monitoring your own changes in Azure, and learning to troubleshoot issues
• You’re asking good questions, spotting improvements and sharing ideas

By 12 months:

• You’re a reliable, confident contributor to the team’s delivery
• You take ownership of features from refinement through to production
• You’re helping others, sharing knowledge and making good use of AI and modern tooling
• You have a clear development plan with your Team Lead

Hybrid working explained: When and where you’ll be in the office

Our office is based in Chippenham, Wiltshire. For this role, we're looking for candidates who can come in to our Chippenham office, once a week.

We offer both formal and informal flexible working options. Full-time hours are 37.5 per week, Monday to Friday.

The office is fully accessible, allowing everyone to participate fully in their working lives regardless of any mobility challenges. We promote work-life balance and flexibility through hybrid working, which combines both remote and office work.

Benefits you can rely on

Great allowances for hybrid working:

£500 work from home allowance - an annual allowance paid monthly alongside your salary to support with working from home costs.

£500 travel allowance - an annual allowance paid monthly alongside your salary to support with travelling to work costs.

£500 annual development allowance: To spend on your chosen development area, whether that’s in your current role, or future roles.

8% annual bonus: company-wide bonus scheme designed to reward collective teamwork and delivery of results across the whole business.

Holiday: 25 days annual leave, a day off for your birthday, additional days leave for long service, plus bank holidays. You’ll also have the option to buy additional leave, allowing for a better work-life balance.

Ethical Pension with Aviva: Good Energy offers an ethical pension plan provided by Aviva, with employer-matched contributions up to 7.5% of your base salary.