Helyx is Hiring!

Junior Full Stack Developer – Python, React & GIS

Are you starting your journey as a developer and excited by maps, data, and solving real-world problems? Do you want to work on meaningful projects that support national defence and security? Come grow your career with Helyx!

About the Role

We’re looking for a Junior Full Stack Developer to join our innovative team working at the intersection of geospatial technologies, Python, and React. You’ll contribute to web applications that visualise and interact with complex datasets, helping our defence and security clients make smarter, faster decisions.

You don’t need years of experience – we’re looking for curiosity, enthusiasm, and a desire to learn. You’ll be supported by experienced developers and geospatial analysts as you develop your skills across the full stack.

What You’ll Be Doing

• Collaborating on web applications that use geospatial data and mapping tools.
• Writing clean, maintainable code in Python and React.js.
• Working with REST APIs and learning how to build and consume them.
• Supporting integration with GIS platforms and spatial data formats.
• Helping with front-end interfaces and backend services as part of a collaborative team.
• Participating in agile development practices including code reviews, stand-ups, and planning sessions.

What You’ll Learn

We’ll support your growth in areas such as:

• Geospatial data formats and tools (e.g., GeoJSON, WMS, ArcGIS).
• Front-end development with React and modern JavaScript/TypeScript.
• Back-end development with Python, FastAPI, and relational databases.
• Mapping libraries and services like Leaflet, Mapbox, and ArcGIS JS API.
• Secure and scalable deployment practices, including Docker and cloud platforms.
• Software Engineering management processes using Gitlab.

What You Bring (Even If You’re Still Learning)

• Some experience or personal projects in React or Python.
• A basic understanding of how web apps work (front-end + back-end).
• Interest in maps, data, or geospatial tech – no need to be an expert yet.
• Willingness to learn new tools and ask questions.
• UK nationality and eligibility for UK Security Clearance (Developed Vetting).

Bonus Points

• Exposure to GIS or mapping libraries (e.g., ArcGIS, Leaflet, Mapbox, OpenLayers).
• Experience with REST APIs or simple database queries.
• Familiarity with TypeScript or cloud platforms like AWS or Azure.
• Passion for visualising data, problem-solving, or spatial analysis.

Location

Hybrid with occasional travel to our office in Twyning and client sites across the UK.

Why Join Helyx?

• Competitive salary tailored to level of experience.
• 9% pension, private healthcare, and life cover.
• Dedicated learning time: 10 days a year just for your professional and personal growth.
• Sustainability-focused benefits like our salary sacrifice ULEV car scheme.
• Wellbeing allowance to support your mental and physical health.
• A supportive team that wants to help you grow into the best you can be.

Apply Now

If you’re a junior developer excited to build exciting products with maps, code, and purpose, we’d love to hear from you.

No agencies, please.

Helyx is proud to be an equal opportunities employer.