ADA Engineer

Groupe SII; United Kingdom; On-site; GBP 65,000 - 85,000; Full time

Job summary

Groupe SII in the United Kingdom is seeking an experienced ADA Engineer to support the development, maintenance, and enhancement of complex simulation and software systems in a regulated engineering environment.

The role requires strong ADA development experience, ideally within aerospace, defence, simulation, or safety-critical systems. C++ experience alongside ADA codebases is desirable to support legacy software modernization.

Qualifications

• Significant experience developing software using ADA.
• Experience working on legacy software systems and supporting long-term product lifecycles.
• Understanding of the full software development lifecycle.
• Experience with software integration, testing, and debugging.

Responsibilities

• Develop, maintain, and enhance software solutions written primarily in ADA.
• Support and modify legacy environmental simulator applications.
• Analyse software defects, perform root cause investigations, and implement corrective actions.
• Participate in software design, integration, verification, and testing activities.
• Produce and maintain technical documentation throughout the software lifecycle.
• Collaborate with systems, software, and integration teams to deliver project objectives.
• Support software modernisation and migration activities where required.
• Contribute to code reviews and ensure compliance with relevant engineering standards and processes.
• Assist with maintaining software quality, reliability, and performance.

Skills

ADA development

Legacy software maintenance

Software debugging

Software lifecycle

C++ development

Tools

Version control

Job description

We are seeking an experienced ADA Engineer to support the development, maintenance, and enhancement of complex simulation and software systems within a highly regulated engineering environment. The successful candidate will play a key role in sustaining and modernising legacy software applications, including environmental simulator software, while supporting ongoing programme requirements.

This role would suit an engineer with strong ADA development experience, ideally gained within aerospace, defence, simulation, or safety‑critical systems environments. Experience with C++ is desirable, particularly where it has been used alongside legacy ADA codebases.

Responsibilities

• Develop, maintain, and enhance software solutions written primarily in ADA.
• Support and modify legacy environmental simulator applications.
• Analyse software defects, perform root cause investigations, and implement corrective actions.
• Participate in software design, integration, verification, and testing activities.
• Produce and maintain technical documentation throughout the software lifecycle.
• Collaborate with systems, software, and integration teams to deliver project objectives.
• Support software modernisation and migration activities where required.
• Contribute to code reviews and ensure compliance with relevant engineering standards and processes.
• Assist with maintaining software quality, reliability, and performance.

Essential Requirements

• Significant experience developing software using ADA.
• Experience working on legacy software systems and supporting long-term product lifecycles.
• Understanding of the full software development lifecycle.
• Experience with software integration, testing, and debugging.

Desirable Experience

• Experience with C++ development.
• Knowledge of environmental simulator software or simulation systems.
• Experience within the aerospace, defence, or safety‑critical industries.
• Familiarity with configuration management and version control tools.
• Understanding of model‑based or systems engineering approaches.
• Experience supporting software modernisation or migration programmes.