Senior Systems Architect

Salary: £60,000 - 100,000 per year

Requirements

• Experience in Model Based Systems Engineering (MBSE) and SysML.
• Experience and a full understanding of Systems Engineering, the V-model and associated processes/lifecycles.
• A degree in STEM or a similar subject, or demonstrable engineering experience supported by appropriate qualifications.
• Chartered Engineer status, or progress toward Chartered status with an appropriate institute.
• Currently SC cleared or able to meet SC requirements.
• Experience in highly regulated industries such as Defence, Oil & Gas, Pharmaceutical, or Nuclear.
• Experience in writing and formally reviewing high-quality technical documentation.
• Knowledge of Systems Engineering practices, methodologies, processes, techniques, and technology trends such as SEBoK, INCOSE practices, NASA System Engineering, and DOORS.
• Self-motivated with the ability to work autonomously when required.
• Strong sense of commitment, willingness to learn, and the ability to work in a dynamic, deadline-driven team environment.
• Preferred skills include team management and leadership, project management, criticality awareness, radiation awareness, HAZOP knowledge, nuclear site operations, nuclear decommissioning, nuclear new build, and nuclear safety cases.

Responsibilities

• Identify all systems, sub-systems, and components (SSCs) and define interfaces and relationships between them.
• Facilitate optimisation of system performance through requirements analysis and design.
• Identify and mitigate risk through modelling system behaviour.
• Interface with client technical and non-technical teams, both remotely and directly on site.
• Author and review technical documentation and processes.
• Apply Systems Engineering best practices and approaches to grow the Systems Engineering capability within the engineering team.
• Work independently and as part of a team, liaising with engineers from different disciplines to ensure a complete and unified design.

Technologies

• Support
• Security
• Architect

More

We are AECOM, a global infrastructure consulting firm delivering projects that create a positive and tangible impact worldwide. Our Systems Engineering team in Warrington supports the nuclear industry, Ministry of Defence, and other security classified clients across nuclear new build, decommissioning, MoD facilities, ITER, and DIO work. We offer a collaborative, inclusive, and forward-thinking environment with career development opportunities, flexible hybrid working, technical practice networks, AECOM University, volunteering days, and a competitive salary and benefits package. We support a wide range of projects from concept to completion and value diversity, learning, and work-life balance.

last updated 35 week of 2026