Job Description
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 ()Our client, a leading consultancy in the Defence & Security sector, is currently seeking an experienced Software Developer to join their team on a permanent basis, based in Leatherhead.
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
Desirable Skills:
* 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 in SQL database development
* Experience using the Java Spring framework
* Experience working in the defence sector
Benefits:
* 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
* Targeted professional development
* Life assurance
* Private healthcare membership
* 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
If you are an experienced Software Developer seeking a new challenge and wish to further develop your technical and leadership skills, we would love to hear from you. Apply now to join our client's impactful and dynamic team.