One Big Circle Ltd

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 software development in the context of large scale, low-latency data processing, and presentation of data within a web interface. 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 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 building new capabilities into an existing broad-ranging and scalable 4PB+ data platform, under the supervision and guidance of senior engineers. You'll gain experience of a range of full-stack relevant technologies such as: Python A range of native AWS services Complex data-platform architecture, multi-tenant, partitioned, and access-controlled environments supporting secure and scalable data access Docker & Microservices Modern Web Applications built in React.js, and TypeScript 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 full-stack web app, made something interesting using AWS services, built and optimised CICD deployment pipelines, 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. Successful candidates will need to pass a BPSS (Baseline Personnel Security Standard) check as part of the onboarding process. You would be a valued part of a small but growing team where your ideas and opinions are valued as we continue the exciting journey of One Big Circle. Company Benefits Life Assurance Pension Scheme Work-related training courses Complimentary snacks and refreshments including fresh fruit Access to Bike to Work Scheme Secure bike storage and shower facilities Social Events

One Big Circle Ltd is offering an exciting entry-level software role in Bristol, designed for individuals with a strong interest in software development on large-scale, low-latency data processing projects. You will work with a small, growing team and learn by doing, building full-stack capabilities and contributing to a broad data platform. The role emphasizes curiosity, a hands-on mindset, and willingness to learn from senior engineers.

Role Summary An exciting opportunity to kick start your career as a junior software engineer in a fast growing, office based, hands on team. This role is ideal if you enjoy being a broad generalist - someone who likes connecting systems, figuring out how different technologies work together, and building practical solutions that make things happen. You'll be working across a range of projects and products, helping to integrate services, move data between systems, and turn complex processes into reliable, working software. We don't expect you to know everything upfront - what matters most is your curiosity, your willingness to learn by doing, and your interest in understanding how real world systems fit together. Responsibilities You will help create and test software 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 flexibility in shaping the role around your strengths and interests, but some of the key technical areas you might encounter are listed below. Key Technical Areas You'll gain experience of a range of full stack relevant technologies such as: Python, C# Video Streaming Complex data platform architecture, multi tenant, partitioned, and access controlled environments supporting secure and scalable data access Docker & Microservices Modern Web Applications built in React.js, and TypeScript 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 full stack web app, made something interesting using AWS services, built and optimised CICD deployment pipelines, 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 and the social side of the company. Company Benefits Company Benefits Include: Life Assurance Work related training courses as required Complimentary snacks and refreshments including fresh fruit Office centric role with allocated workspace Access to Bike to Work Scheme Secure bike storage and shower facilities Social events Successful applicants will be required to pass a BPSS (Baseline Personnel Security Standard) check.

Role Summary We are looking for an IT & Security Analyst to assist in maintaining our IT infrastructure and provide support managing security compliance. The role is based in our Bristol office. Occasional travel may be required to our Derby office and Datacentre in South Wales. Responsibilities Diagnose and resolve technical problems related to servers, workstations, laptops and network equipment. Assist in the installation, configuration, and updates of software applications and patches. Maintain and improve security monitoring, detection and response capability across tools, logs and alerts. Maintain accurate records and documentation of IT systems, procedures, and user requests. Enforce IT security policies and best practices, support audits, assessments and evidence gathering to demonstrate adherence to policies, controls and standards. Successful applicants will be required to pass a BPSS (Baseline Personnel Security Standard) check. Personal Qualities and Experience Knowledge of Windows and Linux operating systems. Understanding of Networking Fundamentals. Ability to work well in a team and collaborate with other staff and business units. Strong troubleshooting and problem-solving skills. Strong organisational and multitasking abilities. Strong technical writing / documentation skills. Company Benefits Company Benefits Include: Life Assurance Work related training courses as required Complimentary snacks and refreshments including fresh fruit Office-Centric role with allocated workspace Access to Bike to Work Scheme Secure bike storage and shower facilities Social events

One Big Circle Ltd is seeking an IT & Security Analyst based in Bristol. In this role, you will assist in maintaining IT infrastructure and ensure security compliance. You'll diagnose technical problems, install and configure software, and enforce IT security policies. The ideal candidate has experience with Windows and Linux, strong troubleshooting skills, and the ability to work collaboratively. Company benefits include life assurance, training courses, and bike to work scheme.

One Big Circle Ltd in Bristol is looking for a Junior Software Engineer to join their fast-growing office-based team. The role focuses on integrating services and working across a range of projects. You will be exposed to various full-stack technologies including Python and C#. The company offers benefits such as life assurance, training opportunities, and a Bike to Work scheme. This position is ideal for individuals eager to learn and contribute to both technical solutions and social activities within the company.

Software Engineer (Mid and Senior Levels) Bristol-Based Office Full-Time 37.5 hours, over 5 days The software technology team at One Big Circle is expanding! We are looking for software engineers at all levels of seniority and experience to integrate into our existing team and work across our diverse technology estate. Available Roles We have a number of roles available that are suitable for engineers with circa 3+ years of experience from 'mid level' up to senior. The roles span a number of broad capability areas which describe the kinds of problems we work on. They are not checklists, we recognise that candidates will bring depth in some areas and interest or exposure in others. We encourage interest from applicants with partial or adjacent skills and backgrounds, to fill a number of different roles within each capability area. Device & Embedded Software Systems Embedded Linux, C++/Python, embedded systems, multi-sensor and camera-based devices (including thermal and line-scan), data acquisition and edge processing, device-to-cloud pipelines, networking, system integration, hardware/software collaboration, field diagnostics, performance optimisation, secure and robust systems, Linux build systems (e.g. Yocto), media pipelines (e.g. GStreamer), FFMPEG, IoT devices, sensor data processing, signal conditioning, computer vision, FPGA exposure, electronics fundamentals. Applied machine learning, computer vision, object detection, image classification, model development and evaluation, data annotation and curation, training pipelines, performance optimisation, edge ML, MLOps, deployment and maintenance of ML solutions, Python development, Python-based ML frameworks, PyTorch, TensorFlow, sklearn, OpenCV, NumPy, feature development, code review, pytest, linting, bug fixing, relational databases, database design and maintenance, AWS/cloud infrastructure, CI/CD pipelines, developer tooling, Linux systems The Role As an OBC Software Engineer, you'll be a hands on contributor, working closely with experienced engineers to build reliable, high performance systems across devices, cloud platforms, and applied ML, contributing to real world, field deployed solutions. You will take responsibility for defined components and projects, contributing to system design, implementation, testing, and deployment, while continuing to develop your technical and professional skills. Responsibilities You will contribute to the development of innovative solutions within a skilled team that likes getting things done: Design, develop, and maintain software solutions Contribute to system design and technical decision making within the team Collaborate with adjacent teams to achieve system integration Take ownership of features, projects, or technical areas (scope matched to experience) Diagnose and resolve issues with in service systems and data Contribute to code reviews and help maintain high engineering standards Support continuous improvement of development practices, tooling, and system reliability Personal Qualities and Experience We are looking for engineers with a strong foundational skillset, a pragmatic approach to problem solving, and a desire to grow. You should be comfortable working in dynamic and multidisciplinary technical teams. Personal Attributes Practical and delivery focused, balancing engineering rigour with pragmatism Strong communication skills, able to work effectively with multidisciplinary teams Self motivated and proactive, with a willingness to take ownership of work Comfortable contributing to code reviews and technical discussions Willing to support more junior engineers Keen to grow into greater responsibility for technical direction and project delivery Company Benefits Company Benefits Include: Life Assurance Work related training courses as required Complimentary snacks and refreshments including fresh fruit Office centric role with allocated workspace Access to Bike to Work Scheme Secure bike storage and shower facilities Social events Successful applicants will be required to pass a BPSS (Baseline Personnel Security Standard) check.

One Big Circle Ltd is looking for Software Engineers at mid and senior levels to join their Bristol-based office. You will work across diverse technology areas, focusing on embedded systems, machine learning, and collaboration within multi-disciplinary teams. Responsibilities include designing and developing software solutions, contributing to system design, and maintaining engineering standards. Company benefits include life assurance, office workspace, and access to training courses.