Software Engineer
Summary
Develop robust Java/C++ software for defence and security systems, integrating solvers and data exchange frameworks while collaborating with scientists and engineers.
Our client, a leading consultancy in the Defence & Security sector, is currently seeking an experienced Software Engineer to join their team on a permanent basis, based in Leatherhead.
Successful candidate must hold a minimum of SC clearance and be willing to undergo DV (Developed Vetting) clearance. More information can be found here - National security vetting: clearance levels - GOV.UK (www.gov.uk)
Key Responsibilities:
- Design, develop, and maintain high-quality software components using Java and C++, with a focus on robustness, performance, and maintainability
- Implement and extend code that interacts with a flexible integration framework for solver coupling and data exchange
- Work closely with clients, domain scientists, and computational engineers- often on-site to understand requirements and translate them into effective software solutions
- Contribute to defining and evolving software architecture, balancing performance, scalability, and long-term maintainability
- Write clean, well-documented, and testable code in line with scientific software development best practices
- Participate regularly in code reviews, debugging sessions, and performance profiling to improve code quality across the team
- Support and mentor junior developers through technical guidance, constructive review, and knowledge sharing
- Over time, take on increasing responsibility for guiding technical direction and contributing to the planning, delivery and management of project work
- Help develop client relationships and contribute to development of new business, such as through writing effective proposals
- Thrive in a consultancy environment solving real-world, high-consequence challenges
Job Requirements:
- Professional experience developing software in Java and C++
- Practical experience applying object-oriented design principles and modular software architectures
- Familiarity with collaborative development practices, including Git and CI/CD pipelines
- Experience working across the full software development lifecycle, including design, implementation, testing, and maintenance
- Knowledge of software testing techniques and a commitment to writing reliable, maintainable code
- Solid analytical and problem-solving skills, with the ability to work effectively both independently and as part of a multidisciplinary team
- The confidence and communication skills to work directly with clients and technical stakeholders
- Sole UK nationality, due to the nature of the work
- Experience writing unit tests using JUnit and Google Test Frameworks
- Solid understanding of numerical methods and scientific computing principles
- Background in physics, applied mathematics, or engineering
- Experience in development with Fortran 90
- Experience using the Java Spring framework
- Experience working in the defence sector
- Competitive salary with yearly reviews
- 25 days holiday + the opportunity to buy 5 days
- A company with its heart in the right place and a welcoming work culture
- Happy to talk flexible working
- Enhanced parental benefits
- Company pension scheme
- Life assurance
- Bonus scheme linked to company performance
- Paid membership fees to a professional institution
- Support in attaining professional membership
- Cycle to work scheme
- Season rail ticket loan
- Additional optional benefits tailored to your personal requirements