Senior Systems Engineer

🕒 September 21, 2025

🇬🇧 United Kingdom – Remote

⏰ Full Time

🟠 Senior

⚙️ Systems Engineer

🇬🇧 UK Skilled Worker Visa Sponsor

This company has sponsored UK Skilled Worker visas in the past.

👻 Ghost score 48%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Assystem

WebsiteLinkedInAll Job Openings

5001 - 10000 employees

🏗️ Construction

🏥 Healthcare

📦 Logistics

💰 Post-IPO Equity on 2013-12

Construction • Healthcare • Logistics

Assystem is one of the world's leading independent nuclear engineering companies, dedicated to accelerating the energy transition. The company sees itself as an activist in the development of nuclear energy, which it believes is vital in the fight against climate change. With 6,500 employees across 12 countries, Assystem is involved in various projects related to nuclear and renewable energies, clean hydrogen initiatives, and low-carbon transport. They provide engineering services and focus on enhancing digital transformation for their clients, building innovative solutions to improve the performance of complex infrastructures. With 55 years of experience, Assystem has established itself as a key partner for major industrial groups in the energy sector.

📋 Description

• Lead technical projects by managing engineering interfaces and ensuring cohesive design integration • Refine architectural frameworks and handle requirements management • Support early-stage activities including optioneering and design concept development • Coordinate creation of artefacts: operations concepts, functional/system architectures, requirement and compliance statements, V&V planning • Conduct optioneering assessments and design risk assessments (safety and CDM) • Support integrated technical management: navigate technical/project risks, refine design configurations, develop breakdown structures • Respond to technical queries and liaise with all disciplines to achieve unified design coordination • Apply and elevate systems engineering best practices and propose MBSE approaches • Report progress on deliverables and provide resource level recommendations to the Project Lead Engineer (Systems and Integration)

🎯 Requirements

• Coordinate the creation of operations concepts, functional and system architectures, requirement and compliance statements, and verification and validation planning • Conduct optioneering assessments and design risk assessments (safety and CDM) • Support integrated technical management by navigating technical and project risks, refining design configurations, and developing breakdown structures • Respond promptly to technical queries and provide clarity and swift resolution • Liaise with all disciplines to achieve unified design coordination • Apply systems engineering best practices and develop Model-Based Systems Engineering (MBSE) approaches • Experience managing engineering interfaces and refining architectural frameworks • Must meet UK security clearance criteria

🏖️ Benefits

• Attractive social benefits including an engaging Employee Committee • Holiday bonuses • Ongoing training and numerous career opportunities • High internal promotion rate (70% of our managers are promoted internally) • Hybrid work: 1-2 days remote per week