Junior Device Software Developer

One Big Circle Ltd; Bath; On-site; GBP 27,000 - 30,000; Full time

Benefits offered by this job

Pension scheme

25 days holiday

Life insurance

Private healthcare

Share options

Training courses

Snacks & refreshments

Flexible work & WFH option

Bike to work

Bike storage & showers

Social events

Job summary

One Big Circle in Bristol is seeking a Junior Device Software Developer to join a fast-growing team. You will work on edge devices and embedded software, developing software and firmware for our AIVR platform under the guidance of experienced engineers.

No formal industry experience is required; passion projects with microcontrollers or Raspberry Pi count. You will learn Python, C, C++, Linux, and hardware integration while contributing to award-winning video solutions.

Qualifications

• Interest in edge devices and embedded systems; strong curiosity and willingness to learn.
• No formal software experience required; passion projects count.
• Familiarity with at least one general purpose programming language.

Responsibilities

• Help create and test software and firmware within a skilled team.
• Learn current and new technologies from experienced engineers.
• Grows into increasing responsibility on project elements.

Tools

Python

C

C++

Linux

IP networking

Job description

Junior Device Software Developer

£26,5k - £30k

Bristol

About One Big Circle

Be part of an award-winning workplace: The Sunday Times Best Medium-sized Technology Company 2025

Formed in 2017, One Big Circle is a fast-growing Bristol technology company that provides “Intelligent Video” solutions. We focus entirely on solving real-world industry problems by fusing new technology in the field of Video, IOT, Cloud and AI providing end to end solutions which allow our customers to dramatically improve their operational efficiency and safety.

Our culture is one of high-quality technical delivery and we work at a speed that many industries are unaccustomed to; we have done this by building a team dynamic that challenges and empowers our people and creating an environment where everyone contributes and learns. We are growing, profitable and have ambitious plans to continue expansion in and beyond our existing markets.

We are looking for a proactive and motivated individual to join our team to support the business in further growing our flagship award-winning product: AIVR. AIVR (Automated Intelligent Video Review) is a state‑of‑the‑art video technology system used by thousands of people in the rail industry. AIVR has won dozens of awards and is recognised as the market leading solution, but we are building many more opportunities both in existing and new markets which will further accelerate our growth.

We have built a culture where people feel supported, included, and empowered to do their best work. Our team is growing, and we’d love for you to be part of the journey.

Role Summary

An exciting opportunity to start a career with a diverse and fast-growing team, developing your skills on a variety of innovative projects.

We're looking for someone with a strong interest in edge devices and embedded systems, low-level software development, and hardware integration. You don’t need to know everything from day one, but curiosity, a willingness to learn, and a hands‑on mindset are key.

Responsibilities

• You will help create and test software and firmware within a skilled team that likes getting things done.
• You will learn a range of current and new technologies from experienced software and hardware engineers.
• You will be given increasing responsibility for elements of each project as you continue to prove yourself.

There is significant scope to adapt the exact role to your skills and interests, but you will spend time developing, integrating and testing embedded applications with a wide range of hardware, under the supervision and guidance of senior engineers.

You’ll gain experience of a range of relevant technologies such as:

• Python, C, C++
• Microcontrollers and FPGA
• Linux
• IP networking
• Integration of visible‑spectrum, thermal, and other specialist imaging and sensor technologies

Personal Qualities and Experience

You are someone who enjoys learning new skills, finding out things and also learning from mistakes. We’d like you to be reliable, curious, and ready to deal with problems and get them solved. We strongly encourage those from under‑represented groups to be confident in applying to us.

You do not need to have any formal experience working in software, but you should be able to demonstrate your interest by having done something or worked on a ‘passion project’ yourself. You might have built a home automation controller, a robot, or a data logger or similar, using microcontrollers, Arduino or Pi, or some other relevant activity. You should have some familiarity with at least one general purpose programming language.

You will also be keen to contribute ideas to both the business development and the social side of the company.

Company Benefits Include:

• Auto enrolment Pension Scheme
• 25 DaysHoliday plusbank holidays
• Life Assurance
• PrivateHealthcare Cover
• ShareOptions
• Work related training courses as required
• Complimentary snacks and refreshments including fresh fruit
• Office‑based role with flexible working and the option of one day per‑week from home
• Access to Bike to WorkScheme
• Secure bike storage and shower facilities
• Social events

Successful applicants will be required to pass a BPSS (Baseline Personnel Security Standard) check.