JLL

Mechanical Engineering Owner’s Representative (Data Centre Project Management)

Chiyoda-ku
Full-time
Posted Aug 18, 2026

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Skills

Blueprint Reading
Compliance
HVAC
Japanese
Project Management
Troubleshooting
AutoCAD
Communication
Plumbing
Problem Solving
Revit

Job description

JLL empowers you to shape a brighter way .

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward.

データセンター新築プロジェクトにおいて、オーナー代表としてHVAC・配管・防火システムなどMEP機械システムの設計・実装を担当します。仕様書作成、機器選定、施工技術支援、試運転活動を通じて、多分野チームと協働しながらシステムの最適化と品質確保を行います。

詳細は下記をご確認ください。

Job Description:

Mechanical Engineering Owner’s Representative (Data Centre Project Management)

We are seeking a highly skilled and experienced Mechanical Engineer with a minimum of 10 years of experience in designing, planning, and managing mechanical systems for datacenter new development and infrastructure fit-out projects.

You will be representing the owner and/or tenants of the project and be responsible for troubleshooting and advising on engineering design, constructability, commissioning issues related to the project. You will be a key member of our team, and ensure the successful delivery of engineering systems for the data centre project.

You’ll be comfortable working with diverse teams, a self-starter, motivated, have excellent communication and organization skills and deliver excellent results.

Responsibilities:

•Collaborate with multidisciplinary teams to design, develop, and implement MEP systems for newbuild data center projects, adhering to industry standards and best practices.

•Prepare mechanical engineering specifications, technical drawings, and construction documents, including HVAC system designs, piping layouts, and equipment selection.

•Evaluate and select mechanical equipment and components, ensuring compatibility with project requirements and optimal performance.

•Conduct feasibility studies and cost analyses to assess the viability and efficiency of mechanical systems, proposing improvements and upgrades when necessary.

•Provide technical support during the construction phase, reviewing contractor submittals, responding to RFIs, and conducting site visits to ensure compliance with design specifications and mechanical codes.

•Perform HVAC load calculations, energy modeling, and airflow analysis to optimize system design and efficiency.

•Collaborate with architects, mechanical engineers, and project managers to integrate mechanical systems seamlessly into overall project plans.

•Participate in commissioning activities, performing system tests, troubleshooting issues, and ensuring proper functionality and performance.

•Stay updated with industry trends, regulations, and emerging technologies related to infrastructure fit-out mechanical systems, and apply this knowledge to improve design and implementation processes.

Requirements:

•Fluent in Japanese (JLPT N2) and English

•Applicants should have valid working status in Japan.

•Bachelor's degree in Mechanical Engineering or a related field.

•Professional Engineer (PE) license preferred.

•Minimum of 10 years of relevant experience in designing and managing mechanical systems – HVAC, Fire Systems, for data centre newbuilds and infrastructure fit-out projects.

•In-depth knowledge of mechanical engineering principles, codes, standards, and practices for infrastructure fit-out projects.

•Proficiency in design and/or project management tools (e.g., AutoCAD, Revit, HVAC, Autodesk Construction Cloud, Procore)

•Strong understanding of HVAC systems, including cooling towers, chillers, air handling units, and control systems.

•Experience with plumbing and piping design, including water distribution, fire protection, and plumbing fixtures.

•Familiarity with energy-efficient design principles and sustainability practices for mechanical systems.

•Excellent project management skills with the ability to prioritize tasks, manage timelines, and deliver projects on schedule.

•Strong analytical and problem-solving abilities, with keen attention to detail.

•Excellent communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams and client stakeholders.

If you meet our requirements and are excited about working on critical infrastructure projects, please submit your resume, portfolio, and references. We look forward to hearing from you!

【雇用形態】

契約社員 1年ごと更新予定

【就業場所】

•所在地東京都千代田区紀尾井町

•最寄り駅地下鉄赤坂見附駅・永田町駅

•受動喫煙対策 [ 屋内原則禁煙喫煙室あり ]

【就業時間・休日】

•就業時間 9:00 17:10 休憩60分

•フレックス勤務制コアタイム有

•リモートワークリモート可要相談

•休日週休2日制土・日、祝日、年末年始

【給与】

想定基本年収 12,000,000~18,000,000

上記はあくまでも目安の金額であり、選考を通じてご経験・能力及び業務内容を考慮し決定します

残業代なし管理職の場合

賞与有り

試用期間有

【募集人員】1名

【選考プロセス】

1. 書類選考

2. 面接複数回実施予定

3. 最終面接

Location:

–Chiyoda-ku

If this job description resonates with you, we encourage you to apply even if you don’t meet all of the requirements. We’re interested in getting to know you and what you bring to the table!

At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.

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Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely.

For more information about how JLL processes your personal data, please view our Candidate Privacy Statement .

For additional details please see our career site pages for each country.

Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at HRSCLeaves jll.com . This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.