Senior Mechanical Engineer (Data Centers)

Who We Are:

Galaxy Digital Inc. (Nasdaq: GLXY) is a global leader in digital assets and data center infrastructure growing the economy that runs on code. Galaxy delivers the onchain infrastructure that connects institutions to digital assets including trading advisory asset management staking self-custody and tokenization. Galaxy also develops and operates data center infrastructure to power AI and HPC workloads. Anchored by its Helios campus in Texas Galaxy is building a multi-gigawatt pipeline of more than 5.7 GW of potential capacity positioning it among the largest and fastest-growing data center developers in North America.

The Company is headquartered in New York City with offices across North America Europe the Middle East and Asia.

Additional information about Galaxys businesses and products is available on .

What We Value:

We are a diverse team of free thinkers and fast movers united to help investors and creators energize the global economy. We are looking for individualswhothrive in a culture of builders and overachieversandembrace high performance transparent feedback and a mission-first approach. Our culture shapes our way of working and gets us where we want to be.

• Seek Excellence.
• Be Selective To Be Effective.
• Be Highly Aligned Loosely Coupled.
• Disagree Transparently.
• Encourage Independent Decision-Making.
• Build Dream Teams.

Who You Are:

The Senior Mechanical Engineer Data Center Operations Engineering & Reliability provides full-lifecycle mechanical engineering support across the data center portfolio from site design and construction through commissioning turnover and enduring operations.

This role serves as an operations-focused technical owner for mechanical infrastructure ensuring systems are designed built commissioned maintained and operated in a way that protects uptime preserves design intent supports redundancy models and improves long-term asset reliability.

The role partners with site operations design and construction commissioning controls/BMS vendors OEMs finance and enterprise reliability leadership to translate design decisions and construction outcomes into safe maintainable and reliable operations.

What Youll Do:

This position supports the enterprise reliability strategy maintenance governance asset lifecycle planning engineering standards RCA discipline technical escalation model commissioning lessons learned and continuous improvement objectives owned by the VP Operational Reliability & Engineering.

• Provide mechanical engineering input during site selection concept design schematic design design development and construction document reviews.
• Review mechanical design packages for operational readiness maintainability service access system redundancy capacity resiliency and preservation of design intent.
• Evaluate mechanical system designs including chilled water systems air-cooled and water-cooled chillers pumps cooling towers CRAH/CRAC units heat exchangers economizers valves piping filtration humidification water treatment systems and supporting infrastructure.
• Identify design risks that could create future operational issues single points of failure maintenance access constraints reliability gaps or lifecycle cost exposure.
• Participate in constructability reviews value engineering discussions submittal reviews RFI resolution equipment selection reviews and design standard updates.
• Partner with design and construction teams to ensure mechanical systems align with enterprise standards OEM requirements warranty protections and long-term operating expectations.

• Support construction-phase technical reviews to ensure installed mechanical systems remain aligned with approved design intent redundancy models sequence requirements and operating requirements.
• Review and provide input on commissioning plans functional performance tests integrated systems tests failure-mode tests and sequence-of-operations validation.
• Validate that mechanical alarms controls sequences set points trends and BMS visibility support safe and reliable operations.
• Ensure turnover packages include complete O&M manuals as-built drawings asset data warranty information spare parts requirements PM tasks training materials and vendor service requirements.
• Confirm site operations teams are prepared to operate maintain and troubleshoot mechanical systems before handoff to enduring operations.
• Capture construction and commissioning lessons learned and incorporate them into standards operating procedures maintenance programs and future designs.

• Serve as a mechanical technical escalation point for site operations during incidents abnormal operating conditions environmental excursions equipment failures and reliability concerns.
• Analyze mechanical system performance trends including temperature humidity flow pressure valve position pump performance chiller efficiency economizer operation and controls stability.
• Lead or support root cause analysis for mechanical incidents near misses recurring alarms capacity constraints and equipment failures.
• Develop corrective and preventive actions that eliminate repeat failure modes and reduce operational risk.
• Partner with controls/BMS teams to improve alarm rationalization monitoring trending sequence performance and operator visibility.
• Provide engineering guidance for live-site maintenance activities system isolations change management reviews MOPs SOPs EOPs and risk assessments.
• Own the mechanical sequence-of-operations documentation as a living artifact post-turnover ensuring it stays current as systems set points and control strategies evolve during enduring operations.

• Define review and improve preventative maintenance standards for critical mechanical equipment across the operating portfolio.
• Ensure maintenance practices align with OEM recommendations warranty requirements contractual uptime commitments and site-specific operating conditions.
• Support reliability-centered maintenance and predictive maintenance programs where appropriate using asset condition failure history service records and operating data.
• Develop mechanical asset criticality frameworks to prioritize inspection maintenance testing spare parts capital replacement and engineering oversight.
• Partner with finance operations and reliability leadership to support long-term capital replacement forecasts tied to equipment degradation age risk and lifecycle cost.
• Review vendor service quality maintenance documentation corrective maintenance effectiveness and spare parts strategies for critical mechanical systems.
• Own the water treatment and chemistry monitoring program for chilled water and condenser water systems including chemistry limits treatment equipment performance ongoing monitoring cadence and coordination with water treatment vendors to protect system integrity and heat transfer efficiency.

• Develop and maintain mechanical engineering standards operating playbooks troubleshooting guides technical bulletins and review frameworks for the operations organization.
• Support management of change processes to ensure mechanical modifications are reviewed for reliability redundancy impact maintainability documentation training and operational readiness.
• Translate site-level incidents near misses asset performance issues and commissioning findings into portfolio-wide improvements.
• Help establish engineering competencies technical training content and qualification expectations for mechanical operations support.
• Reduce single points of technical dependency by documenting knowledge coaching site teams and strengthening internal engineering capability.
• Promote disciplined risk evaluation technical documentation and cross-functional decision-making across design construction commissioning and operations.

What Were Looking For:

• Bachelors degree in Mechanical Engineering or a closely related technical discipline.
• 8-10 years of progressive mechanical engineering experience with at least 5 years supporting data centers mission-critical facilities central plants industrial facilities or other 24x7 high-availability environments.
• Demonstrated experience supporting mechanical infrastructure across design review construction support commissioning turnover maintenance troubleshooting and enduring operations.
• Strong working knowledge of data center or mission-critical mechanical systems including cooling plants air handling systems pumps heat rejection equipment piping valves controls and redundancy configurations.
• Experience reviewing mechanical drawings equipment submittals sequence-of-operations documents commissioning scripts test reports O&M manuals and maintenance documentation.
• Ability to troubleshoot complex mechanical issues in live operational environments and make sound recommendations that balance uptime safety cost schedule and long-term reliability.
• Experience with preventative maintenance root cause analysis corrective action planning asset lifecycle management and operational risk assessment.
• Strong communication skills with the ability to explain technical issues clearly to site operations leadership vendors design teams construction teams and commissioning partners.

• 10 years of mechanical engineering experience in large-scale data center mission-critical or multi-site critical infrastructure environments.
• Professional Engineer license or Engineer-in-Training certification.
• Experience serving as a senior mechanical technical escalation point for live operational facilities.
• Experience supporting new data center builds major expansions retrofits integrated systems testing and operational turnover.
• Knowledge of Uptime Institute Tier concepts ASHRAE guidance OEM maintenance requirements and data center availability expectations.
• Experience with BMS platforms mechanical controls troubleshooting alarm strategy trend analysis and sequence optimization.
• Familiarity with predictive maintenance technologies thermal modeling CFD digital asset management CMMS data quality or reliability analytics.
• Experience developing mechanical standards SOPs MOPs EOPs RCA templates training materials and engineering governance processes.

• Mission-critical mechanical engineering expertise.
• Operational reliability mindset and strong risk recognition.
• Ability to identify design construction commissioning and operating issues before they become outages.
• Practical understanding of how design and construction decisions impact long-term operations.
• Strong troubleshooting incident response and root cause analysis capability.
• Clear technical communication and cross-functional leadership.
• Discipline around change management documentation governance and lessons learned.
• Ability to create scalable standards for a growing operating portfolio.

• Improved mechanical system reliability and reduced repeat mechanical incidents.
• Strong uptime performance across supported data center sites.
• Successful transition of new sites from design and construction into stable operations.
• Reduction in emergency corrective maintenance related to mechanical systems.
• Improved mechanical asset health visibility and long-term capital replacement planning.
• Standardized mechanical maintenance practices technical documentation and operating expectations across the portfolio.
• Fewer design commissioning and turnover issues impacting operations.
• Increased technical capability of site operations teams and reduced reliance on external consultants for core mechanical expertise.
• Overall reduction in operational SLA violation risk due to operational support (programs/processes/tooling).

What We Offer (Dallas):

• Competitive base salary and discretionary bonus

• Flexible Time Off (i.e. unlimited paid vacation days)
• Company paid Holidays (14)
• Company paid sick leave
• Company-paid health and protective benefits for employees partners and other dependents
• 3% 401(k) company contribution
• Generous paid Parental Leave
• Free virtual coaching and counseling sessions through Ginger
• Free daily snacks in-office
• Smart entrepreneurial and fun colleagues
• Employee Resource Groups

*Benefits may vary depending on location.

Apply now and join us as we grow the economy that runs on code.

Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age race color creed religion sex or gender (including pregnancy childbirth lactation and related medical conditions) gender identity or gender expression (including transgender status) sexual orientation marital or partnership or caregiver status ancestry national origin citizenship status disability military or veteran status protected medical condition as defined by applicable state or local law genetic information or predisposing genetic characteristic or other characteristic protected by applicable federal state or local laws and ordinances.

We will endeavor to make a reasonable accommodation to the known limitations of a qualified applicant with a disability unless the accommodation would impose an undue hardship on the operation of our business. If you believe you require such assistance to complete the application process or to participate in an interview please contact