Software Engineer - #2160693

Description

Software Developer – Embedded Systems

Location: Bristol 3-4 days/week on customer site

Clearance: Must be eligible for DV clearance (British Citizen, UK residency last 10 years).

We are looking for a senior application developer who can take ownership of technically challenging software delivery in a secure, mission-focused environment. This role suits an engineer who is comfortable making design decisions, solving complex problems, and working directly with users to turn operational requirements into reliable software solutions

You will work primarily with Python, Vue, Electron, GitLab CI/CD, Ansible, Terraform/Terragrunt, and supporting platform technologies including MongoDB, Elasticsearch, Redis and RabbitMQ. Alongside application development, the role includes secure coding, infrastructure automation, deployment support, and occasional installation or configuration of hardware in controlled environments.

What You’ll Do

• Lead the design and development of desktop, web, or service-based applications.

• Architect and implement high quality Python code, application frameworks, APIs, and supporting automation.

• Develop and maintain modern user interfaces and desktop/web applications using Vue and Electron.

• Develop solutions that integrate data processing, UI/UX, automation, and system level components.

• Create, maintain, and improve infrastructure as code using Ansible and Terraform/Terragrunt.

• Lead testing, debugging, optimisation, and performance improvements.

• Shape requirements, propose technical approaches, and influence project direction.

• Support integration and deployment of software into secure operational environments.

• Build and support CI/CD pipelines in GitLab to automate testing, packaging, deployment, and release activities.

• Work with supporting platform components, including MongoDB, Elasticsearch, Redis, RabbitMQ and related integration services.

• Occasionally support installation, configuration, and commissioning of hardware in secure environments.

• Engage directly with users to understand operational challenges and deliver effective solutions.

• Produce high quality documentation and maintain traceable, peer reviewed git practices, aligned with repository governance policies.
• Mentor junior developers and contribute to team knowledge sharing.

What You’ll Bring

Essential:

• Extensive experience in software development for applications or tools.

• Strong proficiency in Python and the ability to work across modern application frameworks and automation tooling.

• Experience designing and delivering production quality applications.

• Strong understanding of UI frameworks, APIs, data handling, system integration, and secure application design.

• Confident working in Linux and/or MacOS development environments.

• Ability to work flexibly across multiple programming languages and frameworks.

• Proven ability to solve complex technical problems with creativity and rigour.

• Ability to influence technical decisions and collaborate across teams.

• Experience with testing frameworks, debugging tools, Git workflows, and CI/CD pipelines, ideally using GitLab.

• Working knowledge of good industry practice for secure coding, application security, and security-conscious development lifecycles.

• Experience with infrastructure as code, particularly Ansible and Terraform/Terragrunt.

• Experience working with MongoDB, Elasticsearch, Redis, RabbitMQ, or similar data and messaging technologies.

Desirable:

• Experience in secure or defence related environments.

• Knowledge of cryptography, secure data handling, or secure system design.

• Experience with web or desktop frameworks, particularly Vue and Electron, alongside Python web frameworks such as Flask, FastAPI, or Django.

• Familiarity with containerisation, virtualisation, secure deployment practices, and operational support in controlled environments.

• Practical experience installing, configuring, or troubleshooting hardware where software delivery depends on physical infrastructure.

• Experience with distributed systems or message-based architectures.

Education and Experience

• Degree in Computer Science, Software Engineering, or related field preferred.
• Professional membership (BCS, IET) is a plus.

Why Leidos?

We’re a global technology company tackling the UK’s toughest national security challenges. Our Capability Development team is known for delivering bespoke, high-performance solutions in complex environments. We value people who are curious, self-directed, and eager to get their hands dirty with code.

What We Offer

• Competitive Salary & Financial Rewards: Pension, share options, car leasing, free parking, cycle scheme.
• Private Medical Insurance
• 33 Days Annual Leave (incl. public holidays), with buy/sell options.
• Flexible Benefits: Life assurance, gym memberships, health plans.
• Work-Life Balance: 37.5-hour week + up to 2 TOIL days per month.
• Learning & Development: TechX Academy, unlimited e-learning, career mobility.
• Flexi time working

If you want to work on real-world systems, close to the mission, and in a role where your code directly impacts outcomes, we’d love to hear from you.

At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.
We provide an employment package that attracts, develops and retains only the best in talent.

Commitment to Diversity: