Senior Device Software Engineer

Senior Device Software Engineer

One Big Circle – Bristol

Full-Time 37.5 hours over 5 Days

Salary: £55,000 – £75,000

About One Big Circle

Formed in 2017, One Big Circle is a fast-growing Bristol technology company that provide “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.

As an employer, we believe in a happy, inclusive & supportive workplace where everyone can work to their best ability. We are growing quickly and need to recruit another valued member of the team. Could that be you?

Role Summary

We are looking for a Senior Device Software Engineer to join our “Smart Capture” Team. Smart Capture is a foundational capability at OBC, responsible for developing the software and embedded systems at the heart of our advanced video capture appliances. Our systems support a diverse range of cameras, including visible spectrum, thermal imaging, and line scanning, and are deployed in challenging rail and transport environments.

As a Senior Device Software Engineer, you’ll be a key contributor, reporting to the Smart Capture team lead and supporting junior engineers. The role is hands-on and varied, involving the development of high-performance, reliable software across multiple hardware platforms, using a wide range of technologies.

Smart Capture includes:

• Acquiring data from cameras and sensors
• On-device processing and data enrichment
• Transmission to our cloud platform
• Post-processing to ensure positional and measurement accuracy

Responsibilities

You will create innovative capture solutions within a skilled team that likes getting things done:

• Design, develop, and maintain embedded and application-level software for capture devices
• Participate in system architecture design and technical decision-making within the team
• Collaborate with hardware and electronics engineers on end-to-end system integration and design
• Develop tooling to manage deployment workflows
• Take ownership of resolving problems with fielded devices and the data being generated
• Mentor junior engineers and provide technical leadership within project teams
• Keep abreast of emerging technologies relevant to computer vision, embedded systems, and smart imaging

Personal Qualities and Experience

We are looking for an engineer with a deep, practical technology skillset and the curiosity and adaptability to tackle complex, multi-disciplinary challenges. The ideal candidate will bring broad experience across embedded systems, computer vision, and hardware/software integration, alongside the ability to mentor others and contribute to the technical direction of the team.

Experience and Technical Skills

• Significant experience developing performance-critical, memory-efficient applications in embedded environments
• Python expertise with a focus on performance, reliability, and native code integration
• C and C++ expertise for low-level development
• Embedded and application development on Linux
• Experience with IP networking protocols and configuration
• Knowledge of image processing and computer vision techniques, including OpenCV, image enhancement, and multi-sensor data synchronisation (desirable)
• Familiarity with microcontroller and FPGA development, including firmware for real-time sensor interfaces, precise timing, and hardware communications (desirable)
• Familiarity with electronics and experience collaborating closely with hardware teams to deliver integrated, reliable systems
• Integration of visible-spectrum, thermal, and other specialist imaging and sensor technologies (desirable)
• GStreamer and FFmpeg for building and optimising video streaming and media processing (desirable)

Personal Attributes

• Practical and delivery-focused, balancing engineering rigour with pragmatic problem solving
• Strong communication skills, capable of articulating complex technical topics to multidisciplinary colleagues
• Comfortable mentoring others, reviewing code, and sharing expertise with the wider team
• Self-motivated and capable of independently driving technical investigations and finding solutions

Company Benefits Include:

• Auto enrolment Pension Scheme

• 25 Days Holiday plus bank holidays

• Life Assurance

• Private Healthcare Cover

• Work related training courses as required

• Complimentary snacks and refreshments including fresh fruit

• Office-Centric role

• Access to Bike to Work Scheme

• Secure bike storage and shower facilities

• Social events

You would be a valued part of a fast growing team where your ideas and opinions are valued as we continue the exciting journey of One Big Circle.

Successful candidates will need to pass a BPSS (Baseline Personnel Security Standard) check as part of the onboarding process

To apply please send a covering letter along with CV to