Software Engineer

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 Youll 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 Youll 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 messagebased architectures.

Education and Experience

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

Were a global technology company tackling the UKs 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.

• 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 wed 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:

We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging welcoming all perspectives and contributions and providing equal access to opportunities and resources for you have a disability or need any reasonable adjustments during the application and selection stages please let us know and we will respond in a way that best fits your needs.

Who We Are:

Leidos UK & EUROPE we work to make theworldsaferhealthierandmore efficient through technology engineering andscience.

Leidosis agrowing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services our work in the United Kingdom includes addressing some of the most complex problems in defence healthcare government safety and security and transportation.

What Makes Us Different:

Purpose:you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning AI cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You caninspirechange.

Collaboration:havingflexibilityto do your job is one of our core benefits enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home the office or on customer sites we will give you the digital tools and the flexibility to work smarter and align your needs andours.

People:Leidosempowerspeople from every background to be themselves and gives you the tools to learn new skills byenabling growthwhilst developing. We believe that extraordinary people need opportunities to grow tobe inspiredand to inspire others. At Leidos we invest in technical academies career rotations and a career development plans that enhance your future. #INTNSD

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.