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ASSYSTEM

Engineering services for design, construction, commissioning

Business Architect - Digital

Full-TimeUpdated on 10/23/2026
No salary listed
Mid
Bristol, UK
HybridHybrid working; workplace options are Bristol or London.
Business & StrategyBusiness Analysis

About the job

Requirements
  • Relevant qualifications and experience in one or more business architecture disciplines: process management, business analysis, management information, or IT system development.
  • Experience delivering business architecture solutions that remove duplication and improve operational efficiency.
  • Familiarity with ONR licence conditions and cyber/nuclear security requirements relevant to IT-enabled change.
  • Experience of formal project management approaches, such as PRINCE2 or EDF Project Way, and tools.
  • Experience of procurement activities, including RFI, ITT, and evaluation processes.
  • Proven experience developing investment cases for large, complex programmes.
  • Strong understanding of business architecture change within complex, evolving environments.
  • Expertise in business process analysis and design, including use of modelling and collaboration tools.
  • Advanced stakeholder management and facilitation skills, with the ability to influence at senior levels.
Responsibilities
  • Lead engagements with business stakeholders to define project concepts, clarify scope, assess impacts, and identify initial risks, issues, and dependencies.
  • Capture, evaluate, challenge, and prioritise business requirements in consultation with senior management, ensuring alignment with business strategy.
  • Collaborate with internal teams and external delivery partners to develop solution options and evaluate them against business and user needs.
  • Prepare business cases and investment proposals, articulating tangible benefits and identifying opportunities to maximise value.
  • Act as custodian of business requirements throughout the project lifecycle, ensuring solutions remain aligned with agreed outcomes.
  • Apply knowledge of emerging trends, best practice, and innovative solutions to drive continuous improvement in business operations.
  • Support business acceptance of new processes and systems, including walkthroughs, testing, and readiness activities.
  • Ensure projects adhere to delivery assurance principles and governance standards.
Desired Qualifications
  • Broad knowledge of architecture standards, frameworks, and best practice methods.
  • Strong analytical skills, including the ability to apply a range of analysis techniques to complex problems.

About the company

Assystem provides engineering services for complex projects, covering design, construction, supervision, commissioning, and operation, with a strong focus on the nuclear and energy sectors. Its approach combines multidisciplinary engineering teams and project-management capabilities to move projects from initial concept through to operation. The company differentiates itself through a long track record, strategic acquisitions (including Alphatem in 1995 and Mactech Energy Group in 2025) and an early public offering in 2013, which have expanded its capabilities and market reach in the energy and nuclear fields. Its goal is to be a leading, reliable partner for clients by delivering end-to-end engineering services and helping them meet safety, performance, and regulatory requirements across the project lifecycle.

Company Size

5,001-10,000

Company Stage

IPO

Headquarters

Paris, France

Founded

1966

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Simplify's Take

What believers are saying

  • H1 2026 revenue grew 2.5% organically; nuclear grew 8.0%.
  • France delivered 4.2% organic growth on new-builds, fuel cycle, and digitalisation.
  • UK momentum accelerated after April 2026 SMR, CPS2, and MoD framework wins.

What critics are saying

  • Nuclear concentration leaves Assystem exposed if French EPR2 schedules slip beyond 2027.
  • H1 2026 international revenue fell from currency hits and project endings in India.
  • Rolls-Royce SMR still needs FID, regulatory clearance, and site decisions before revenue scales.

What makes ASSYSTEM unique

  • Assystem derived 81% of H1 2026 revenue from nuclear engineering.
  • April 2026 UK wins placed Assystem on CPS2 and MoD delivery frameworks.
  • January 2025 Mactech Energy Group deepened Assystem's UK nuclear construction capabilities.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Unlimited Paid Time Off
  • Flexible Work Hours
  • Remote Work Options
  • Paid Vacation
  • Paid Holidays
  • Hybrid Work Options
  • 401(k) Retirement Plan
  • Wellness Program
  • Mental Health Support

Company News

Yahoo Finance
Jul 23rd, 2026
Assystem's H1 revenue rises 2.5% organically to $371.2M on nuclear growth

Assystem reported consolidated revenue of €328.5 million for the first half of 2026, representing organic growth of 2.5% despite a 1.9% negative currency effect. The French engineering group's nuclear activities drove performance with 8.0% organic growth, accounting for 81% of total revenue. Revenue in France rose 4.2% organically to €201.1 million, led by strong momentum in nuclear new-builds and fuel cycle activities. International operations generated €127.4 million, remaining stable organically despite currency headwinds from the pound sterling, Indian rupee, and Saudi riyal. The UK showed robust growth in civil nuclear engineering and defence. However, business volumes declined in the Middle East, Central Asia region and India due to project endings and slower contract phasing. Assystem confirmed its full-year 2026 targets.

Yahoo Finance
Apr 23rd, 2026
Assystem posts $187.4M Q1 revenue with 2.2% organic growth driven by nuclear sector

Assystem, an international engineering group, reported first-quarter 2026 consolidated revenue of €165.8 million, representing 2.2% organic growth driven by strong nuclear sector performance of 8.0%. Nuclear activities accounted for 81% of total revenue, up from 76% in the prior year. French operations grew 4.4% to €102.6 million, driven by momentum in fuel cycle activities, new-builds and digitalisation. International revenue declined 7.1% to €63.2 million, primarily due to a 6.0% negative currency effect from the pound sterling, Indian rupee and Saudi riyal. The UK showed robust growth in civil nuclear engineering and defence. Assystem secured key positions on government frameworks and its client Rolls-Royce SMR signed a contract with Great British Energy for three small modular reactors.

Bdaily
Jan 30th, 2025
Assystem expands UK footprint with takeover

A global nuclear engineering firm has strengthened its UK presence with the acquisition of a specialist construction company. Paris-headquartered Assystem has… | North East | Construction | Engineering | International | Energy | Mergers & Acquisitions | Commercial Partnerships | Manufacturing & Construction |

Assystem
Jan 17th, 2024
Assystem acquires KEOPS Automation, engineering specialist in automated systems and data enhancement

Assystem, an international engineering, digital services and project management company, has acquired 100% of the shares of KEOPS Automation, a French company specializing in the integration of industrial operating platforms and the enhancement of their data (industrial OT and IT, automated systems, supervision systems, BI applied to manufacturing).

Global Construction Review
Jan 5th, 2024
France’s Assystem acquires India’s L&T Infrastructure Engineering - Global Construction Review

France-headquartered engineer and project manager Assystem has acquired India’s L&T Infrastructure Engineering, a subsidiary of the Larsen & Toubro group.