ADA Engineer

PERMANENT CONTRACT / SII United Kingdom

MISSION

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.

PROFILE

KEY 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.

  • Strong analytical and problem-solving skills.

  • Ability to work effectively within multidisciplinary engineering teams.

  • Experience producing technical documentation and following structured development processes.

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.

 

OUR AGENCY

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK-wide to deliver high-impact engineering solutions. 

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission-critical programmes while helping to shape the future of innovation across next-generation systems and technologies. 

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment. 

True to our human-centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running. 

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,” and helping to build a digital future that is sustainable, at the heart of an environment that values learning & collaboration.

SII GROUP

Who are we?

 

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK-wide to deliver high-impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission-critical programmes while helping to shape the future of innovation across next-generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human-centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,” and helping to build a digital future that is sustainable, at the heart of an environment that values learning & collaboration.

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