SimSoftware

SII Group delivers Digital Services, IT, Engineering, and Consulting to diverse industries, enabling digital transformation through our commitment to Growth, People, and CSR. 

With over 16,000 professionals across 21 countries, we’re recognised as a “Great Place to Work” for fostering a high-trust culture. Our core values of Trust, Transparency, and Quality drive our work package delivery, ensuring we meet and exceed client expectations as a committed partner. 

Since 2016, SII UK has supported top Aerospace & Defence, Aviation, Transportation, and Finance clients, empowering digital transformation with industry-leading engineering expertise. 

Let’s Tech Together is our promise to encourage innovation and teamwork. We support our engineers with development opportunities and a collaborative, inclusive environment where every voice is valued and empowered. 

#Let'sTechTogether 

THE OPPORTUNITY 

We are seeking two (2) full-time equivalent Simulation Software Engineers to join the SimSoftware team immediately. The role focuses on simulation development activities, contributing to high-quality, mission-critical software solutions. Candidates must be able to work full time on-site in Stevenage and demonstrate strong expertise in modern C++ development within a structured engineering environment. 

KEY RESPONSIBILITIES: 

• Develop and maintain simulation software within the SimSoftware environment.

• Contribute to system design, implementation, testing, and integration activities.

• Work with configuration management, CI/CD, and issue tracking tools.

• Collaborate with multidisciplinary engineering teams to deliver high-quality simulation capabilities.  

ESSENTIAL SKILLS & EXPERIENCE: 

Strong modern C++ development experience Experience with:

• Jira

• Git

• Jenkins

• Artifactory

• UML 

DESIRABLE:

• C#

• GoogleTest

• Rational Team Concert (RTC) / Engineering Workflow Management (EWM)

• MADGE / MASCOT 

BENEFITS:

• Competitive Basic Salary
• 6% Employers Contribution + 6% as a salary sacrifice
• Private Medical Insurance, Life Cover and Income Protection
• 25 days holiday
• 10 days full sick pay per year
• Flexible working
• Cycle to Work & TechScheme
• Continuous professional development
• Corporate access to the Udemy platform

* If you're applying for a role requiring security clearance, please be aware that foreign or dual nationality is not an automatic bar, however certain posts may have restrictions which could affect those who do not have sole British nationality or who have personal connections with certain countries outside the UK.