Junior Platform Software Developer

Salary: £31,500 - 59,500 per year

Requirements:

• A strong interest in software development, particularly large-scale, low-latency data processing and presenting data in a web interface.
• Curiosity, reliability, a willingness to learn from mistakes, and a hands-on approach to solving problems.
• No formal software work experience is required, but you should be able to demonstrate your interest through a personal project or other relevant activity.
• Familiarity with at least one general-purpose programming language.
• Successful applicants must pass a BPSS (Baseline Personnel Security Standard) check.

Responsibilities:

• Help create and test software as part of our skilled team.
• Learn current and new technologies from our experienced software and hardware engineers.
• Take on increasing responsibility for project elements as you develop.
• Build new capabilities into our broad-ranging, scalable 4PB+ data platform, with guidance from senior engineers.
• Contribute ideas to our business development and social activities.

Technologies:

• AI
• Cloud
• Hardware
• IoT
• Security
• Web
• AWS
• DevOps
• Docker
• Support
• Python
• React
• TypeScript
• microservices

More:

We are One Big Circle, a fast-growing, profitable Bristol technology company founded in 2017. We develop intelligent video solutions using video, IoT, cloud and AI to help customers improve operational efficiency and safety. Our flagship product, AIVR (Automated Intelligent Video Review), is used by thousands of people in the rail industry and is recognised as a market-leading solution. We offer a supportive, inclusive and empowering team environment, and were named The Sunday Times Best Medium-sized Technology Company 2025. This is a full-time, office-centric role based at our Bristol office, working 37.5 hours over five days, with a salary of £26,500. Benefits include an auto-enrolment pension, 25 days holiday plus bank holidays, life assurance, private healthcare, work-related training, complimentary snacks and refreshments, a Bike to Work Scheme, secure bike storage and shower facilities, and social events.

last updated 39 week of 2026