Question
Full-time
10+

Mechanical Design Engineer (PHE + Fire Fighting)

3/18/2026

The Mechanical Design Engineer is responsible for the meticulous design and rigorous review of PHE and fire protection systems for building projects, ensuring optimal safety and efficiency. This includes preparing comprehensive design drawings, BOQs, technical specifications, and conducting complex hydraulic calculations.

Working Hours

40 hours/week

Company Size

5,001-10,000 employees

Language

English

Visa Sponsorship

No

About The Company
Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change. 8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport. We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures. 59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF... Assystem is ranked in the Top 3 companies in the nuclear energy sector.
About the Role

Company Description

Assystem is an international company with one mission: accelerate the energy transition around the world.

Every day, our 6,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.

We are a collective committed to the actors who are making the energy switch.  Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.

Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering.

To ensure a viable, efficient, and reliable energy future for all.

Job Description

The Mechanical Design Engineer (PHE + Fire Fighting) is responsible for the critical task of designing and reviewing PHE and fire protection systems for building projects. This role demands a high level of expertise and attention to detail.

  • Meticulously design and rigorously review PHE and fire protection systems for building projects, ensuring optimal safety and efficiency.
  • Prepare comprehensive design drawings, precise BOQs, and detailed technical specifications with utmost accuracy.
  • Conduct complex hydraulic and flow calculations to guarantee system performance and reliability.
  • Strictly adhere to and ensure full compliance with NBC, NFPA, and all relevant codes and standards.
  • Effectively coordinate with architecture, structure, and MEP teams to ensure seamless integration of all building systems.

Key Competencies:

  • Advanced expertise in PHE and Fire Fighting Design
  • Proficiency in complex hydraulic calculations and pump sizing
  • In-depth knowledge of NBC, NFPA, and IS Standards
  • Superior coordination skills and technical documentation abilities

Qualifications

Experience Required: A minimum of 10 years of extensive, relevant experience is mandatory, with a strong preference for candidates possessing up to 15 years in the field. This extensive experience requirement is non-negotiable due to the critical nature of the role.

Educational Qualification: Candidates must hold a Bachelor of Technology (B.Tech) degree in Mechanical Engineering or an equivalent qualification from an accredited institution. The degree must demonstrate a rigorous academic background in mechanical engineering principles, particularly those applicable to PHE and fire fighting systems.

Additional Requirements:

Please note: Only candidates who meet all of the above qualifications will be considered for this position. The critical nature of this role demands strict adherence to these requirements to ensure the safety and efficiency of our projects.

  • Demonstrated mastery of PHE and Fire Fighting Design principles is essential
  • Proven track record in performing complex hydraulic calculations and pump sizing with utmost precision
  • Comprehensive and up-to-date knowledge of NBC, NFPA, and IS Standards is crucial
  • Exceptional coordination skills and the ability to produce meticulous technical documentation are imperative

     

Additional Information

  • Proficiency in AutoCAD and working knowledge of Revit MEP.

  • Understanding of plumbing and firefighting system design principles.

  • Familiarity with relevant codes and standards (NBC, IS, and basic knowledge of NFPA).

  • Strong analytical and problem-solving skills.

  • Good communication and coordination skills.

  • Ability to handle multiple tasks and meet deadlines.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

  • ASSYSTEM Job: Engineering / Technical
  • Type of contract ASSYSTEM: Permanent
  • ASSYSTEM Sector: Infrastructure / Building
  • Key Skills
    PHE DesignFire Fighting DesignHydraulic CalculationsPump SizingNBC ComplianceNFPA ComplianceIS StandardsCoordination SkillsTechnical DocumentationAutoCADRevit MEPPlumbing System DesignAnalytical SkillsProblem-Solving
    Categories
    EngineeringConstructionEnergySecurity & Safety
    Apply Now

    Please let ASSYSTEM know you found this job on InterviewPal. This helps us grow!

    Apply Now
    Prepare for Your Interview

    We scan and aggregate real interview questions reported by candidates across thousands of companies. This role already has a tailored question set waiting for you.

    Elevate your application

    Generate a resume, cover letter, or prepare with our AI mock interviewer tailored to this job's requirements.