Senior Mechanical Design Manager

📍 Job Overview

Job Title: Senior Mechanical Design Manager

Company: STACK Infrastructure EMEA

Location: London, United Kingdom

Job Type: Full-Time

Category: Engineering & Operations Management

Date Posted: 2026-09-15

Experience Level: 10+ Years

Remote Status: Hybrid

🚀 Role Summary

• This role serves as the senior mechanical technical authority for STACK Infrastructure's EMEA Design & Engineering function, focusing on defining and governing mechanical engineering standards for their European data centre platform.

• Key responsibilities include owning the mechanical cooling strategy, plant standards, thermal performance, and energy efficiency approach to ensure the European Reference Design is scalable, commercially optimized, and future-ready.

• The position requires close collaboration with Engineering, Design, Development, Delivery, Commercial, Construction, and Commissioning teams to provide senior technical oversight and guidance on complex mission-critical data centre projects across EMEA.

• A strong emphasis is placed on technical review at key RIBA stage gates, challenging consultant designs for compliance, energy efficiency, constructability, and operability, while also governing structured deviations from mechanical standards.

📝 Enhancement Note: While the job title is "Senior Mechanical Design Manager," the description strongly indicates a role focused on operational standards, technical governance, and strategic oversight within the data centre infrastructure domain. This aligns with a senior-level position within a Revenue Operations, Sales Operations, or GTM infrastructure support function, where the "product" is the standardized, efficient, and scalable design of the physical infrastructure that supports the company's revenue-generating services. The focus on "European Reference Design," "scalability," "commercial optimization," and "future customer requirements" points to a GTM-aligned operations role.

📈 Primary Responsibilities

• Act as the senior mechanical technical authority, defining and maintaining the mechanical components of the European Reference Design and its future iterations.

• Own the mechanical cooling strategy, encompassing air-cooled solutions, chilled water systems, liquid cooling integration, and hybrid deployment approaches.

• Define modular mechanical building block principles that ensure scalability, phasing flexibility, resilience, and alignment with STACK's platform design philosophy.

• Provide senior technical review at key RIBA stage gates, critically assessing consultant designs for adherence to standards, energy efficiency, constructability, and operability.

• Review and approve structured deviations from mechanical standards, ensuring decisions are well-governed, documented, and aligned with overarching platform objectives.

• Support regional design and delivery teams by troubleshooting complex mechanical issues encountered during design, pre-construction agreement (PCSA), construction, and commissioning phases.

• Contribute technical input to client specification reviews, managing responses to evolving requirements such as rack density, inlet temperatures, and flow rates for hyperscale clients.

• Monitor emerging cooling technologies and higher-density deployments (e.g., AI-driven loads), contributing to a roadmap for liquid cooling and next-generation mechanical systems.

• Drive sustainability and energy optimization initiatives, focusing on plant sizing, PUE performance, capacity planning, and enhancements that improve MW yield and platform competitiveness.

• Collaborate with commercial, development, and investment teams to articulate mechanical CapEx drivers, quantify specification change impacts, and facilitate informed decision-making.

• Develop and maintain comprehensive mechanical design standards, technical guidance notes, Basis of Design alignment documentation, QA checklists, peer review frameworks, and BIM-related mechanical requirements.

• Translate complex mechanical engineering concepts into clear, actionable insights for senior stakeholders, regional teams, and cross-functional partners.

📝 Enhancement Note: The responsibilities clearly outline a strategic, governance-focused role. The emphasis on "defining and maintaining mechanical components of the European Reference Design," "owning the mechanical cooling strategy," and "defining modular mechanical building block principles" highlights a strong focus on standardization and platform development, which are core GTM operations functions. The requirement to "support regional design and delivery teams" and "collaborate with commercial, development, and investment teams" underscores the cross-functional nature of this role, typical in GTM operations.

🎓 Skills & Qualifications

Education:

• A degree in Mechanical Engineering is required.

• Chartered status, or progress towards chartership, would be advantageous. Experience:

• Significant experience in mechanical engineering within mission-critical, hyperscale data centre, or similarly complex technical environments.

• Experience in a developer, hyperscale, investor-backed, or large-scale infrastructure platform would be beneficial. Required Skills:

• Deep technical expertise in chilled water systems, plant optimization, air-cooled and hybrid cooling solutions, liquid cooling integration, thermal modelling, and capacity planning.

• Strong understanding of data centre cooling strategy, resilience, scalability, partial-load and full-build-out assumptions, energy efficiency, and PUE optimization.

• Proven experience in reviewing and challenging consultant designs, leading technical governance, and minimizing design changes during construction.

• Commercial awareness, with the ability to balance energy performance, CapEx efficiency, expandability, MW yield, and long-term platform value.

• Confidence in working effectively across regional and cross-functional teams, including Design, Engineering, Development, Delivery, Commercial, Construction, and Commissioning.

• Strong communication skills, adept at translating technical complexity into clear recommendations for technical, commercial, and executive audiences.

• A structured, collaborative, and improvement-focused approach, demonstrating sound judgment for making clear decisions under pressure. Preferred Skills:

• Progress towards or attainment of Chartered Engineer status (e.g., CEng).

• Experience with BIM (Building Information Modelling) standards and workflows within mechanical design.

• Familiarity with RIBA (Royal Institute of British Architects) stages and project governance frameworks.

• Understanding of sustainability initiatives and their impact on mechanical system design.

• Experience in developing and implementing engineering standards and technical guidance notes.

📝 Enhancement Note: The qualifications emphasize deep technical expertise in a specialized engineering field, coupled with strategic thinking, commercial acumen, and strong cross-functional communication. This blend is crucial for GTM operations roles that bridge technical execution with business objectives. The mention of "RIBA stage gates" and "BIM" suggests a need for process adherence and documentation proficiency, core to operations.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated ability to develop and implement standardized mechanical engineering designs for large-scale infrastructure projects, showcasing modularity, scalability, and resilience.

• Case studies or examples of technical governance processes, illustrating how design standards were enforced, deviations were managed, and compliance was ensured across multiple projects.

• Evidence of contributions to defining or optimizing cooling strategies, thermal performance metrics, and energy efficiency initiatives within a data centre context, with quantifiable results.

• Documentation showcasing experience with capacity planning methodologies, thermal modelling outputs, and the integration of emerging cooling technologies (e.g., liquid cooling).

• Examples of collaboration with commercial and development teams, demonstrating the ability to translate technical specifications into CapEx drivers and support informed business decisions. Process Documentation:

• Examples of established mechanical design standards, technical guidance notes, and Basis of Design documentation that have been successfully implemented.

• Documentation related to QA checklists, peer review frameworks, and BIM-specific mechanical requirements that ensure quality and consistency in design deliverables.

• Workflows or methodologies employed for reviewing and approving structured deviations from established mechanical standards, ensuring a clear governance process.

• Processes for supporting regional teams in resolving complex mechanical issues during various project phases, from design through commissioning.

📝 Enhancement Note: The portfolio requirements are heavily geared towards demonstrating process adherence, standardization, and governance – hallmarks of effective operations management. The emphasis on "standardized mechanical engineering designs," "technical governance processes," and "process documentation" directly relates to building repeatable, scalable GTM infrastructure.

💵 Compensation & Benefits

Salary Range:

The estimated salary range for a Senior Mechanical Design Manager in London, UK, with 10+ years of experience in a specialized technical field like data centre infrastructure, is typically between £80,000 and £120,000 per annum. This range accounts for the seniority of the role, the critical technical expertise required, and the high cost of living in London. Factors such as specific qualifications (e.g., Chartered Engineer status), direct experience with hyperscale clients, and the company's compensation philosophy can influence the final offer.

Benefits:

• Competitive compensation package, reflecting the senior level and critical nature of the role.

• Opportunities for professional growth and development within a rapidly expanding European platform.

• Exposure to large-scale, cutting-edge data centre projects.

• Comprehensive benefits designed to support employees both professionally and personally (specifics typically include health insurance, pension contributions, paid time off, etc., though not detailed in the provided text). Working Hours:

• Standard full-time working hours are expected, likely around 40 hours per week, with flexibility often available in hybrid work environments.

• The role may require occasional travel to project sites or other STACK offices across EMEA to support design reviews and project delivery.

📝 Enhancement Note: The salary estimate is based on industry benchmarks for senior engineering management roles in London, considering the specialized nature of data centre infrastructure. The benefits highlight professional development and exposure, aligning with career growth expectations for operations professionals.

🎯 Team & Company Context

🏢 Company Culture

Industry: Data Centre Infrastructure & Digital Real Estate. STACK operates within a highly competitive and rapidly growing sector driven by increasing demand for cloud computing, AI, and digital services. This environment necessitates innovation, efficiency, and scalability.

Company Size: STACK Infrastructure is a significant player in the global data centre market. While specific EMEA team size isn't provided, the company's backing and growth trajectory suggest a dynamic and expanding organization. For operations professionals, this means opportunities to influence processes and systems in a growing company, potentially with less bureaucracy than established giants, but requiring adaptability.

Founded: STACK was founded with a vision to provide flexible, scalable, and sustainable digital infrastructure solutions. This foundation emphasizes reliability, innovation, and client-centricity, which should permeate the operational approach.

Team Structure:

• The role sits within the EMEA Design & Engineering function, indicating a specialized engineering department.

• The Senior Mechanical Design Manager will likely lead or heavily influence a sub-team or focus area within mechanical engineering, working closely with other disciplines (electrical, structural, etc.) and cross-functional project teams.

• Reporting likely goes up to a Director or VP of Design & Engineering, with significant interaction with project managers, development leads, and commercial teams. Methodology:

• Data Analysis & Insights: Decisions regarding mechanical standards, cooling strategies, and energy efficiency are driven by data on performance, CapEx, OpEx, and emerging technologies.

• Workflow Planning & Optimization: Focus on defining and refining the "European Reference Design," modular building blocks, and design governance processes to ensure consistent, efficient project delivery.

• Automation & Efficiency Practices: While not explicitly stated for this role, the broader company likely pursues efficiency through standardized designs, robust QA processes, and potentially digital tools for design review and collaboration.

Company Website: https://www.stackinfra.com/

📝 Enhancement Note: The company context highlights a fast-paced, growth-oriented environment within critical infrastructure. This implies a need for operations professionals who can adapt to change, drive standardization, and contribute to scalable solutions that directly impact the company's ability to deliver its core services.

📈 Career & Growth Analysis

Operations Career Level: This is a senior management position, indicating a significant level of responsibility and autonomy. The role requires not just technical depth but also strategic thinking, leadership, and the ability to influence cross-functional stakeholders. It sits at a critical juncture between engineering excellence and business objectives, shaping the physical foundation of the company's service delivery.

Reporting Structure: The Senior Mechanical Design Manager will likely report to a Director or VP level within the EMEA Design & Engineering function. They will collaborate closely with project delivery teams, commercial departments, and potentially client-facing roles, providing technical expertise that directly influences project success and commercial viability.

Operations Impact: The mechanical design standards and strategies defined by this role have a direct and profound impact on STACK's operational efficiency, energy consumption (PUE), CapEx costs, and the ability to meet diverse hyperscale client demands for power and cooling. This directly influences the company's profitability, sustainability targets, and market competitiveness.

Growth Opportunities:

• Operations Skill Advancement: Opportunity to deepen expertise in advanced cooling technologies (liquid cooling, AI-driven loads), sustainability integration, and data centre platform design, potentially leading to broader responsibilities across EMEA or global initiatives.

• Leadership Development: Potential to build and lead a specialized mechanical engineering team, mentor junior engineers, and take on more significant leadership roles within the Design & Engineering function.

• Strategic Influence: Direct involvement in shaping the long-term technical roadmap and reference design for STACK's European data centre portfolio, influencing strategic investment and development decisions.

📝 Enhancement Note: The growth analysis emphasizes the strategic impact and leadership potential inherent in this role, aligning with typical career trajectories for senior operations professionals who can bridge technical expertise with business strategy.

🌐 Work Environment

Office Type: The role is based in London and is described as "Hybrid." This suggests a mix of working remotely and from a company office.

Office Location(s): London, United Kingdom. Specific office details are not provided, but London is a major business hub with excellent connectivity. The hybrid nature implies that employees are expected to be in the office for key meetings, collaborative sessions, and team-building activities.

Workspace Context:

• Collaborative Environment: The role requires extensive interaction with various internal teams (Engineering, Design, Development, Delivery, Commercial, Construction, Commissioning) and potentially external consultants and clients. The office environment likely facilitates these collaborations through meeting spaces and shared work areas.

• Operations Tools & Technology: Access to advanced design software, BIM platforms, thermal modelling tools, and potentially project management and collaboration platforms will be essential for this role. The company likely invests in robust technology to support its complex data centre design and delivery processes.

• Team Interaction: While hybrid, there will be opportunities for direct mentorship, peer learning, and team strategy sessions when physically present in the office. The emphasis on "structured, collaborative and improvement-focused approach" suggests a culture that values open communication and feedback.

Work Schedule:

• The standard work week is likely around 40 hours, typical for a full-time role.

• The hybrid arrangement offers flexibility, allowing for a balance between focused remote work and in-office collaboration. Some flexibility may be required for critical project milestones or urgent issue resolution.

📝 Enhancement Note: The hybrid work environment and emphasis on collaboration are typical for senior roles in large infrastructure companies, balancing individual focus with team synergy. The context suggests a professional, technologically equipped workspace conducive to complex engineering and project management.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of the CV and application to assess alignment with the core experience and qualifications, particularly in hyperscale data centre mechanical design.

• Technical Interview(s): In-depth discussions focusing on mechanical engineering expertise, cooling strategies, thermal modelling, PUE optimization, and experience with relevant technologies (chilled water, liquid cooling). Expect scenario-based questions to gauge problem-solving skills.

• Design Governance & Process Discussion: Interviews will likely explore experience in defining standards, managing technical governance, reviewing consultant designs, and handling deviations. Questions may probe your approach to ensuring compliance and quality across projects.

• Cross-Functional Collaboration & Commercial Acumen: Assess your ability to work with non-technical teams (Commercial, Development) and understand the financial implications (CapEx) of design decisions.

• Leadership & Management Interview: Evaluate your leadership style, experience managing teams or technical initiatives, and your approach to continuous improvement.

• Final Interview/Presentation: Potentially a presentation of a portfolio or a specific case study demonstrating your expertise in a complex mechanical design challenge or a strategic initiative.

Portfolio Review Tips:

• Showcase Standardization & Governance: Highlight examples where you defined or enforced mechanical design standards, developed technical guidance, or implemented QA/peer review frameworks.

• Quantify Impact: For cooling strategies, energy efficiency, or CapEx optimization, present quantifiable results (e.g., PUE improvements, CapEx savings, increased MW yield).

• Demonstrate Problem-Solving: Include a case study of a complex mechanical challenge encountered and how you resolved it, detailing the technical approach and outcomes.

• Illustrate Cross-Functional Collaboration: Provide examples of how you translated technical requirements into business terms for commercial teams or collaborated with delivery teams to ensure constructability.

• Structure for Clarity: Organize your portfolio logically, perhaps by project type or by demonstrating key responsibility areas (e.g., Cooling Strategy, Design Governance, Emerging Technologies). Use clear visuals and concise descriptions.

Challenge Preparation:

• Be prepared for hypothetical scenarios related to data centre cooling challenges, such as unexpected load increases, equipment failures, or client demands for higher densities.

• Practice articulating your reasoning for design decisions, balancing technical feasibility, cost-effectiveness, and operational efficiency.

• Develop talking points on emerging cooling technologies and their potential application in STACK's EMEA platform.

• Prepare to discuss your approach to sustainability and energy optimization within mechanical design.

📝 Enhancement Note: This section provides actionable advice for candidates, emphasizing the need to demonstrate not just technical skill but also an understanding of process, governance, and business impact – core to operations roles.

🛠 Tools & Technology Stack

Primary Tools:

• CAD/BIM Software: Proficiency in industry-standard Computer-Aided Design (CAD) and Building Information Modelling (BIM) software (e.g., AutoCAD, Revit, Navisworks) for mechanical design and collaboration.

• Thermal Modelling Software: Experience with specialized software for thermal analysis and CFD (Computational Fluid Dynamics) simulations (e.g., IES VE, ANSYS Fluent, Autodesk CFD) to predict and optimize thermal performance.

• Data Centre Design Tools: Familiarity with tools or platforms used for data centre capacity planning, layout design, and infrastructure management.

Analytics & Reporting:

• Performance Monitoring Tools: Understanding of how mechanical systems are monitored for energy efficiency (PUE) and operational performance, potentially involving Building Management Systems (BMS) data.

• Data Analysis Software: Ability to analyze data from simulations, project reviews, and operational feedback to drive improvements. Proficiency in tools like Excel (advanced functions), potentially Python for data manipulation, or BI tools for visualization.

CRM & Automation:

• Project Management Software: Experience with project management platforms (e.g., MS Project, Asana, Jira) for tracking design milestones, managing tasks, and coordinating with project teams.

• Collaboration Platforms: Familiarity with tools like Microsoft Teams, Slack, or similar for cross-functional communication and document sharing.

• Document Management Systems: Experience with systems for managing and versioning technical documentation, standards, and design deliverables.

📝 Enhancement Note: The tools listed are standard for senior mechanical design roles in complex infrastructure. For a GTM operations perspective, the emphasis would be on how these tools enable standardization, efficiency, and collaboration in delivering the company's physical infrastructure product.

👥 Team Culture & Values

Operations Values:

• Excellence & Precision: A commitment to high-quality, technically sound mechanical designs and standards that ensure the reliability and performance of data centre operations.

• Innovation & Future-Readiness: A proactive approach to exploring and integrating emerging cooling technologies and design methodologies to meet evolving client demands (e.g., AI loads, higher densities).

• Collaboration & Partnership: A strong emphasis on working effectively across diverse teams (Engineering, Development, Commercial, Delivery) to achieve shared project and platform goals.

• Efficiency & Optimization: A drive to optimize mechanical systems for energy efficiency (PUE), CapEx, and OpEx, directly contributing to platform competitiveness and sustainability.

• Governance & Accountability: A structured approach to technical decision-making, standard adherence, and documentation, ensuring clear accountability and controlled design evolution.

Collaboration Style:

• Cross-Functional Integration: The role necessitates seamless collaboration with multiple departments, requiring clear communication and a shared understanding of project objectives and constraints.

• Process Review & Feedback: An open culture for reviewing designs, providing constructive feedback, and collectively improving mechanical standards and project execution processes.

• Knowledge Sharing: A willingness to share expertise, mentor colleagues, and contribute to building a robust knowledge base for mechanical engineering within STACK EMEA.

📝 Enhancement Note: The culture and values described align with a professional, technically driven organization that prioritizes quality, innovation, and collaboration to achieve its strategic objectives. This is essential for any operations role focused on building and maintaining scalable infrastructure.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Evolving Demands: Keeping pace with the rapid evolution of hyperscale client requirements (e.g., increasing power densities, AI workloads) while maintaining robust, scalable, and cost-effective mechanical designs.

• Technical Governance in a Growth Environment: Ensuring consistent application of mechanical standards across numerous projects in a fast-growing EMEA region, managing deviations effectively without compromising platform integrity.

• Integration of New Technologies: Successfully evaluating, piloting, and integrating emerging cooling technologies (e.g., advanced liquid cooling solutions) into the European Reference Design, considering scalability and operational readiness.

• Cross-Functional Alignment: Navigating differing priorities and perspectives among Development, Commercial, Delivery, and Engineering teams to achieve optimal mechanical design solutions that meet all stakeholder needs.

Learning & Development Opportunities:

• Operations Skill Advancement: Deepen expertise in advanced cooling technologies, data centre sustainability, and PUE optimization through specialized training, industry conferences, and hands-on project experience.

• Industry Exposure: Gain exposure to leading-edge data centre design practices, client requirements, and emerging trends in the global digital infrastructure market.

• Leadership Development: Opportunities to lead strategic initiatives, mentor junior engineers, and potentially expand into broader engineering leadership roles within STACK's growing EMEA operations.

📝 Enhancement Note: The challenges highlight typical complexities in scaling infrastructure operations, particularly in a rapidly evolving tech sector. The growth opportunities focus on continuous learning and leadership, crucial for long-term career development in operations.

💡 Interview Preparation

Strategy Questions:

• "Describe your approach to defining and enforcing mechanical engineering standards for a hyperscale data centre platform across multiple regions." (Focus on governance, documentation, and scalability.)

• "How would you balance the need for energy efficiency (PUE) with CapEx optimization in a new mechanical plant design, and how would you present this trade-off to commercial stakeholders?" (Demonstrate commercial acumen and data-driven decision-making.)

• "Discuss a time you had to challenge a consultant's design. What was the issue, how did you address it, and what was the outcome?" (Showcase technical authority, critical thinking, and problem-solving.) Company & Culture Questions:

• "What do you know about STACK Infrastructure's approach to sustainable data centre development, and how would your role contribute to these goals?" (Research company values and align your expertise.)

• "How do you foster collaboration between engineering teams and other departments like Commercial or Development to ensure successful project outcomes?" (Highlight your cross-functional communication and partnership skills.)

• "How do you stay current with emerging cooling technologies, and how would you evaluate their suitability for STACK's platform?" (Demonstrate continuous learning and strategic foresight.) Portfolio Presentation Strategy:

• Structure: Begin with a brief overview of your career and key achievements. Then, select 2-3 compelling case studies that best represent your experience in mechanical design governance, cooling strategy development, or complex problem-solving within data centres.

• Narrative: For each case study, clearly articulate the challenge, your role and approach, the technical solutions implemented, and the quantifiable results (e.g., efficiency gains, cost savings, risk reduction). Use visuals where possible.

• Focus on Operations Impact: Emphasize how your work contributed to standardization, scalability, operational efficiency, and business objectives, aligning with the operational nature of the role.

• Be Prepared for Q&A: Anticipate detailed questions about your technical decisions, design choices, and how you would apply your experience to STACK's specific challenges.

📝 Enhancement Note: This preparation guide focuses on demonstrating strategic thinking, process adherence, and business impact, which are critical for senior operations roles that bridge technical execution with organizational goals.

📌 Application Steps

To apply for this Senior Mechanical Design Manager position:

• Submit your application through the provided link on the Ashby platform.

• Customize Your Resume: Tailor your resume to highlight experience in hyperscale data centres, mechanical engineering leadership, cooling strategies, energy efficiency, technical governance, and cross-functional collaboration. Use keywords from the job description.

• Prepare Your Portfolio: Curate examples of your work that showcase your ability to define standards, manage technical reviews, optimize mechanical systems, and collaborate with diverse teams. Quantify achievements wherever possible.

• Research STACK Infrastructure: Understand their mission, values, recent projects, and their approach to sustainable and scalable data centre development. Consider how your expertise aligns with their strategic goals.

• Practice Your Narrative: Be ready to articulate your experience and approach clearly, especially regarding technical challenges, process improvements, and business impact during interviews.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.