As a Sr. Mechanical Engineer for Amazon's AMER Data Center Fleet, you will own and drive the overarching mechanical retrofit strategy across the AMER region operational portfolio. You will serve as the strategic bridge between retrofit operations, product development, and new build design-ensuring that lessons learned from the existing fleet directly influence the next generation of mechanical cooling products and Basis of Design (BOD) documents. Responsibilities • Own design reviews for high complexity retrofit projects across the AMER region, providing lifecycle engineering support from design through construction, commissioning, and turnover. • Define, communicate, and execute the long-term mechanical retrofit roadmap for the AMER data center fleet, prioritizing initiatives that unlock capacity, improve availability, and advance sustainability goals across hundreds of operational sites. • Act as the primary mechanical subject matter expert driving innovation in cooling capacity, efficiency, and sustainability-including emerging technologies such as liquid cooling, advanced air handling, and next-generation refrigerant systems. • Partner directly with product development and field engineering teams to translate fleet-wide retrofit insights, failure modes, and performance data into design requirements that shape new cooling technologies-ensuring products are purpose-built for both greenfield deployment and retrofit compatibility. • Collaborate with new data center build teams to embed retrofit-informed mechanical design standards into BOD documents, reducing future technical debt and ensuring Day 1 designs account for lifecycle adaptability and upgrade pathways. • Serve as the leading mechanical engineering voice across product development, new build design, field engineering, controls engineering, and operations-ensuring strategic coherence between what we build new, what we retrofit, and what we develop next. • Leverage fleet performance data, remediation trends, and field engineering team feedback to identify systemic mechanical challenges and architect proactive, portfolio-level solutions rather than reactive, site-level fixes. • Coordinate with internal and external design teams, server hardware, environmental health and safety, field engineering, and controls engineering to ensure design consistency and reliability. Amazon's vision is to be the world's most customer-centric company, and this role is key to that vision. As a Fleet Remediation Data Center Retrofit Sr. Mechanical Engineer, you will be leading projects to fit out our data centers to meet ever-evolving customer needs as we continue expanding our fleet to hyper-scale. As an ideal candidate you: • You combine deep data center cooling expertise with fleet-wide strategic vision-thinking in systems, not components • You thrive where technical depth meets cross-organizational influence and are energized by shaping mechanical strategy at unprecedented scale • Possess Strong Engineering Judgement and are able to provide design and recommendations despite uncertainty • Are detail and data oriented with familiarity with design/construction processes • Have experience managing engineering projects and engineering consultants. • Build trust and relationships with different stakeholders (e.g., Operations, Commissioning, Construction and Design) • Be inclined to get into the field to see things up close We have an immediate opening for a Sr. Mechanical Engineer in the Fleet Remediation Engineering team. If you meet these qualifications, exude passion, and enjoy the challenge of innovative projects at hyper-scale, this job is for you! A day in the life Each day you will interact with different teams responsible for all aspects of the data centers. You will prioritize your activities to closely collaborate with capacity planning & delivery teams to identify opportunities to increase capacity utilization and develop designs for projects to unblock the additional capacity. You will have the opportunity to work on projects globally and lead first of kind designs for innovative solutions. About the team BASIC QUALIFICATIONS - 5+ years of industrial or commercial engineering in mission critical facilities including but not limited to: data centers, power generation or oil and gas facilities experience - Bachelor's degree or above in Mechanical Engineering PREFERRED QUALIFICATIONS - Professional Engineer License - Experience working with technical and product stakeholders to define requirements, prioritize features, and influence product roadmaps - Experience reading and writing procedures, technical documents, and engineering drawings, or experience leading technical teams through daily operations and maintenance evolutions - Knowledge of mechanical systems in critical Data Center operations including but not limited to CRAC/CRAHs/AHUs, chillers, cooling towers, storage tanks, chemical systems, heat exchangers, piping systems, pumps, valves, duct systems, fans, or dampers - Knowledge of mechanical, electrical, and controls systems for critical infrastructures - Experience owning and leading significant projects from concept to deployment - Experience reading, interpreting, and creating construction drawings, specifications, and submittal documents - Experience developing and scaling mechanical cooling strategies across a large portfolio of operational facilities - Familiarity with building codes, regulations, and authorities having jurisdiction across multiple AMER regions The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits. USA, VA, Herndon - 136,600.00 - 184,800.00 USD annually