• Serve as the technical authority and discipline lead for all mechanical engineering aspects of power delivery projects. • Oversee and review the design of HVAC systems, oil containment, cooling systems, piping, conduit supports, equipment enclosures, and other mechanical components for substations and related facilities. • Lead the development and review of calculations, specifications, design drawings, and construction documentation. • Provide mechanical design guidance for transformer installations, gas-insulated substations (GIS), and high-voltage equipment layouts. • Support thermal and ventilation studies, ensuring that substation environments maintain safe and efficient operating conditions. • Collaborate with civil, electrical, and structural teams to deliver fully integrated and constructible design solutions. • Conduct site visits and field assessments to collect data, verify conditions, and support construction and commissioning activities. • Manage project scopes, schedules, budgets, and deliverables to ensure high-quality and timely completion. • Lead the development of standards, procedures, and best practices for mechanical design in power delivery applications. • Mentor and provide technical guidance to mechanical engineers, designers, and CAD technicians. • Serve as a client-facing technical expert, presenting engineering solutions, addressing complex challenges, and supporting business development activities. • Ensure adherence to QA/QC procedures, safety standards, and applicable codes (ASME, NFPA, API, IEEE, and NESC).

• Provide technical expertise to internal team members and external clients • Assist in client contact, connections, and finding opportunities • Provide expert consultant mechanical engineering advice to our clients in the data center space • Familiarity with industry standards, building codes • Guide as to the pros and cons of system types and rack cooling strategies • Coordinate with other internal/external engineering disciplines, vendors, and contractors • Act as point of contact for mechanical discipline in high-level discussions • Participate in all phases of a project from pursuit and proposals through design, and construction • Create thought leadership opportunities to expand Arcadis's touch and brand in the data center market • Assist in the preparation of proposals • Travel as required to attend pursuit discussions, project meetings, and collaboration with clients’ team members • Work in a collaborative team environment • Provide mentoring to staff

• Plan and implement cost-effective and reliant mechanical designs and distribution systems • Work with internal business partners like Technical Project Management, Data Center IT, IT Procurement, Network Engineering, and with external vendors to validate and test installation & operation performance of data center mechanical systems • Create designs which meet and exceed Nebius’s quality benchmarks within our budget capacity • Seek new designs and amalgamate new technologies within Nebius AI’s data center planning and infrastructure • Identify and document list of electrical equipment and components required during the build/installation phase • Work on multiple projects in different locations, and visit the construction sites to oversee the work of external vendors and contractors

• Plan, validate and verify the roll out of reliant electrical systems • Work with our internal and external business partners • Create designs which meet and exceed Nebius’s quality benchmarks on time and within budget • Seek new designs and amalgamate new technologies within Nebius AI’s data center planning and infrastructure