Gas jobs in United Kingdom

Are you passionate about engineering? Do you want to make a difference?

ALTEN is a global engineering and technology consultancy operating across over 30 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, and many more to deliver innovative engineering solutions that drive technological advancement and support sustainable transformation. Our teams of passionate and agile engineers work on cutting‑edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow's world‑today.

At ALTEN UK, we partner with industry leaders to deliver advanced safety engineering solutions across Defence, Aerospace, Rail, and Energy domains. We're seeking a Senior Systems Safety Engineer to take ownership of system safety assurance activities on complex, high‑integrity systems. You'll work on multi‑domain projects, ensuring compliance with key safety standards and developing robust safety arguments from concept through to certification.

Location: Bristol (On‑site at least 3 days per week)
Clearance: Able to hold SC Clearable (5 years in the UK minimum)

• Lead System Safety Engineering activities across the full project lifecycle in accordance with safety‑critical standards.
• Develop and maintain Safety Cases, ensuring they demonstrate ALARP principles and robust safety arguments.
• Conduct detailed analyses including Fault Tree Analysis (FTA), Event Tree Analysis (ETA), Common Cause Failure Analysis, Functional Failure Analysis (FFA), Failure Modes Effects and Criticality Analysis (FMECA), and maintain Hazard Logs.
• Produce and review System Hazard Analysis Reports, ensuring traceability and completeness.
• Collaborate with multidisciplinary engineering teams to embed safety into system design and development.
• Support safety reviews, audits, and customer assessments to demonstrate compliance with relevant standards.

• Proven experience in System Safety Engineering within a safety‑critical and regulated industry (Defence, Aerospace, Rail, Nuclear, or Oil & Gas).
• Strong understanding of Safety Case development and ALARP arguments.
• Hands‑on experience performing FTA, ETA, FMECA, Hazard Analysis, and similar activities.
• Working knowledge of standards such as EN 50126, EN 50128, EN 50129, IEC 61508, Def Stan 00-056, Def Stan 00-051, ARP4761, DO‑178, DO‑254, etc.
• Excellent communication and documentation skills, able to produce high‑quality technical reports.

• A Bachelor’s or Master’s degree in Systems, Aerospace, Electrical, or Mechanical Engineering, or related discipline OR a relevant technical military background with equivalent hands‑on engineering experience.
• Must be eligible for UK SC Security Clearance (Minimum 5 Years in the UK)

• Experience working on Defence safety cases or certification programmes.
• Knowledge of software or electronic safety standards (DO‑178C, DO‑254).
• Familiarity with Hazard Log management tools and safety lifecycle management.

We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently.

Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programmes, internal universities, and more, we are always pushing boundaries and embracing new possibilities.

We offer incredible opportunities to join inspiring projects in the most innovative companies.

We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential.

Join our passionate team and start building tomorrow, today!

• A personalised career path and a rewarding management style
• A chance to work on the most exciting engineering projects and technologies along with Premium Customers
• A huge diversity of engineering projects and industries
• A competitive salary
• Private Medical Insurance
• Pension Scheme
• Cycle‑to‑work Scheme among many additional benefits
• Social atmosphere, regular gatherings, and team buildings
• Flexible way of working (role dependent)

This role will require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected. Details of this will be discussed with you at interview.

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