Senior Software Engineer; C++​/Unreal Engine

Senior Software Engineer
Portsmouth Hybrid, 3 days onsite
50,000- 75,000 plus bonus and benefits

This Senior Software Engineer role is ideal for a hands-on engineer with experience in C++ and Unreal Engine, working on complex, performance-critical software across modelling and simulation, autonomy and geospatial domains. The position focuses on building robust, scalable systems while offering clear progression towards technical leadership.

The role sits within a growing software and data science consultancy delivering end-to-end solutions across defence, energy, transport and health. You will work alongside experienced engineers, data scientists and subject matter experts on programmes covering modelling and simulation, autonomous systems, synthetic environments and digital twins.

You will stay close to the code while contributing ideas, shaping solutions and engaging directly with customers.

What you will be doing
Designing, developing and delivering software solutions across modelling and simulation, autonomy and geospatial domains
Working with technologies including wargaming, robotic and autonomous systems, digital twins and synthetic environments
Applying mathematical and computational methods to solve real-world problems
Contributing to technical consultancy projects, with opportunities to lead defined work packages
Analysing use cases and project context to shape requirements and specifications
Working across existing codebases and contributing to performance-critical systems
Building and maintaining effective customer and stakeholder relationships
Supporting technical reporting and presenting work to customers

What you will bring
At least 5 years' experience designing and delivering performant software applications
Proficiency in C, C++ or C# alongside Python

Experience with Unreal Engine or similar game-engine technology
Understanding of software modelling and simulation techniques
Experience in areas such as entity or event-based simulation, robotics or autonomous systems
Confidence working with large codebases and understanding performance and hardware constraints
Strong communication skills and the ability to work directly with stakeholders

Desirable

Experience with in UK defence or other regulated environments
Degree-level education or equivalent experience with a strong STEM or computing background

Location, security and working pattern
Hybrid working with 3 days per week onsite in Portsmouth
Willingness to travel within the UK and work at client sites when required
Right to live and work in the UK
Eligible and willing to obtain SC security clearance, normally requiring 5 years UK residency

What's on offer
Salary from 50,000, flexible based on experience
7 percent employer pension contribution
Private healthcare and life assurance
25 days holiday with additional holiday purchase options
EV salary sacrifice scheme
Structured mentoring and internal and external training opportunities