11 software engineer jobs found in Bristol

Software Engineer | Bazel 📍 Bristol 🏠 Hybrid work model -3 days in the office, 2 days wfh 💶 Up to £600/day - Outside IR35 📄 6 months contract with possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles. They’re now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling a large monorepo across Python, C++, Rust, SystemVerilog, and ML workloads • Building reproducible, multi-language build pipelines • Optimising CI performance across large compute clusters • Improving the developer...

Software Engineer (PHP, Playwright, k6) - Mobile RASP & API Security Gateway Pay Rate: £500- £550 (Outside IR35) Duration: 6 months ' Working arrangement: Once a month - Bristol We are currently working with an established financial services organisation operating in the investment and wealth management sector. The organisation is strengthening its mobile and API security capabilities and is seeking an experienced Contract Engineer to help deliver and operationalise a Mobile RASP and API Security Gateway solution. This role is delivery-focused and hands-on, working across backend engineering, testing, security, and operational readiness in a regulated environment. Responsibilities Design, develop, and maintain secure PHP-based backend services and APIs Build and maintain automated end-to-end and functional test suites using Playwright or similar tools Execute and analyse performance and load tests using k6) to identify reliability,...

Software Engineer (PHP, Playwright, k6) - Mobile RASP & API Security Gateway Pay Rate: £500-£550 (Outside IR35) Duration: 6 months' Working arrangement: Once a month - Bristol We are currently working with an established financial services organisation operating in the investment and wealth management sector. The organisation is strengthening its mobile and API security capabilities and is seeking an click apply for full job details

Software Engineer (PHP, Playwright, k6) - Mobile RASP & API Security Gateway Pay Rate: £500-£550 (Outside IR35) Duration: 6 months' Working arrangement: Once a month - Bristol We are currently working with an established financial services organisation operating in the investment and wealth management sector. The organisation is strengthening its mobile and API security capabilities and is seeking an click apply for full job details

Software Engineer - Simulation Location: Yeovil, 2 days a week on site Duration: 12 Months + Rate: Up to £60 p/h Ltd Outside IR35 SC Clearance required. Support development of synthetic environments for both crewed and un-crewed rotary wing platforms within the LH Engineering function click apply for full job details

DevOps Engineer; Security Clearance, Ci/CD, Terraform, Kubernetes, vulnerability, Andover or Bristol (primary): 2 days per week mandatory at the client site Security clearance is a must have, rate £450 per day outside IR35 Essential: Proven experience administering CI/CD platforms such as GitLab, Jenkins, GitHub Actions, or Nexus. Strong understanding of DevOps and infrastructure automation principles (eg Ansible, Terraform, Scripting). Experience managing secure, containerised environments (Kubernetes, Red Hat OpenShift). Working knowledge of monitoring, logging, and vulnerability scanning tools (eg Prometheus, Grafana, SonarQube, ELK Stack). Experience establishing and maturing technical environments or development platforms from inception. Strong system administration background with knowledge of networking, access management, and system security. Demonstrated ability to manage multiple priorities and lead small-scale innovation or capability development...

Senior C++ Engineer Based out of Cheltenham 4-5 Days per week £600 to £650 Outside IR35 Immediate Start (Ideally within the next two weeks) I am working on behalf of a National Security client based out of Cheltenham who are looking for a Senior C++ Engineers to join them on a Contract basis for 6 months initially. We're looking for a C++ Engineer who has led end-end projects and enjoys solving complex technical problems in areas like software defined radio. The role would suit someone open to some pythons for tooling, automation, or testing alongside core C++ development. If you are currently working in Security, Defence or Financial Services this would be a big bonus for the client. Again, this role will be based out of Cheltenham 4-5 Days per week and you must be SC Cleared to be considered. If you're interested, please do respond with your updated CV as I will be calling through applicants in order of receipt - m.simmonds @ioassociates.co.uk (no spaces) Senior...

Senior C++ Engineer Based out of Cheltenham 4-5 Days per week £600 to £650 Outside IR35 Immediate Start (Ideally within the next two weeks) I am working on behalf of a National Security client based out of Cheltenham who are looking for a Senior C++ Engineers to join them on a Contract basis for 6 months initially. We're looking for a C++ Engineer who has led end-end projects and enjoys solving complex technical problems in areas like software defined radio. The role would suit someone open to some pythons for tooling, automation, or testing alongside core C++ development. If you are currently working in Security, Defence or Financial Services this would be a big bonus for the client. Again, this role will be based out of Cheltenham 4-5 Days per week and you must be SC Cleared to be considered. If you're interested, please do respond with your updated CV as I will be calling through applicants in order of receipt Senior C++ Engineer Based out of Cheltenham 4-5 Days...

Senior Electronic Systems Engineer Outside IR35 | Up to £750/day | 6 months + extensions (2–3 year programme) 1‑stage interview | Long-term project for an Senior Electronic Systems Engineer to take end‑to‑end ownership of airborne electronic hardware for Hydrogen Fuel Cell Management Systems on a landmark clean‑aviation programme. This is a hands‑on, system‑level role where you’ll define architecture, drive integration, and lead verification and qualification of high‑reliability airborne hardware — shaping technology that will power the future of zero‑emission flight. You’ll work with a world‑class engineering team on a long‑term programme, while retaining the flexibility and autonomy of an outside‑IR35 contract . What you’ll do: Own the architecture, integration, verification, and qualification of airborne electronic hardware Define system and derived requirements to meet safety and regulatory objectives Architect and integrate...

AWS DevOps Engineer | Outside IR35 The Role We are looking for an experienced DevOps Engineer to join a fast-moving digital delivery environment on a contract basis. This position is centred around building and shaping cloud infrastructure for a variety of modern software projects, working closely with engineering and delivery teams throughout the full life cycle. You'll be expected to contribute to technical discussions, collaborate with stakeholders across delivery functions and support production-grade systems in a client-driven environment. Key Responsibilities . Designing scalable cloud infrastructure solutions within AWS . Building and maintaining infrastructure using Terraform and IaC principles . Developing reliable CI/CD pipelines and deployment workflows . Supporting automation and release processes across multiple environments . Working with GitHub Actions and other delivery tooling . Contributing to infrastructure strategy and technical decision-making ....

We’re supporting a global engineering organisation looking for a Contract Application Security specialis t to help embed secure development practices across their software and related hardware products. This is likely to be a minimum of 6 months (outside IR35) with further extensions a strong likelihood. You’ll work closely with engineers and leadership to drive secure SDLC , threat modelling , assess vulnerabilities , and support alignment with the EU Cyber Resilience Act. Key experience: Product Security / Application Security Strong Understanding of software development environments Familiarity with threat modelling and vulnerability assessments Secure coding principles / OWASP Ability to engage with software teams and speak their language Relevant backgrounds may include AppSec, Product Security, DevSecOps, Secure SDLC, Penetration Testing or Offensive Security. This role does require a couple of days in the Gloucestershire office...