Critical Infrastructure Mechanical Engineer - Marshfield, MO
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Overview
Schedule
Full-time
Education
Engineering (PE)
Career level
Senior-level
Remote
On-site
Compensation
$90,000-$115,000/year
Benefits
Health Insurance
Dental Insurance
Vision Insurance
Job Description
Critical Infrastructure Mechanical Engineer Location: Onsite – Marshfield, MOReporting to: DCOAt STN, we don't just adapt to the digital future, we engineer it. Our mission is to help organizations thrive in a rapidly evolving technology landscape through strategic insight, cutting-edge solutions, and a security-first mindset. We provide end-to-end services spanning cloud consulting, AI infrastructure, and enterprise security, enabling secure, scalable, and future-ready transformation.As trusted advisors, we align IT investments with business outcomes that drive performance and growth, starting with deep strategic engagement and delivering tailored solutions built for long-term impact.Our approach is innovation-led and rooted in cybersecurity, with a focus on leveraging the right technologies to solve real-world challenges. We invest in our people and foster a culture of growth, inclusion, and purpose because we believe empowered teams build transformative technology.
Overview
Experienced Mechanical Engineer with expertise in mission-critical infrastructure, industrial facilities, and large-scale engineering projects. Proven ability to support the full lifecycle of critical facilities from design and construction through commissioning, operation, troubleshooting, and continuous improvement. Skilled in root cause analysis (RCA), reliability engineering, HVAC systems, chilled water plants, power generation support systems, and data center infrastructure. Strong track record of collaborating with cross-functional teams to improve availability, efficiency, sustainability, and operational excellence in complex environments at STN.Key Responsibilities
- Provide full lifecycle engineering support for mission-critical facilities from design inception through construction, commissioning, operation, and ongoing maintenance.
- Serve as the primary mechanical engineering resource for regional infrastructure projects and operational teams.
- Lead troubleshooting efforts, root cause analyses (RCA), and corrective action development for critical equipment and system failures.
- Support operational excellence through technical reviews, procedure development, equipment assessments, and training initiatives.
- Design and implement upgrade projects that increase capacity, improve reliability, enhance energy efficiency, and support sustainability objectives.
- Collaborate closely with operations, construction, commissioning, controls, environmental health and safety, and design teams to maintain engineering standards and operational consistency.
- Conduct engineering audits and site assessments, identifying operational risks and developing mitigation strategies.
- Support new construction projects as a resident engineer, ensuring successful installation, commissioning, startup, and system turnover.
- Manage multiple concurrent projects across various locations while maintaining schedule, budget, quality, and safety objectives.
- Develop innovative engineering solutions that improve facility performance, resilience, and long-term maintainability.
- Mechanical Systems
- Air-Cooled Chillers
- Water-Cooled Chillers
- Cooling Towers
- Pumps & Hydronic Systems
- Heat Exchangers
- CRAH Units
- Air Economizers
- Ventilation Systems
- Variable Frequency Drives (VFDs)
- Industrial Water Treatment Systems
- Electrical Infrastructure Familiarity
- UPS Systems
- Diesel Generators
- Electrical Switchgear
- Automatic Transfer Switches (ATS)
- Static Transfer Switches (STS)
- Power Distribution Units (PDUs)
Controls & Analytics - Building Management Systems (BMS) Supervisory Control and Data Acquisition (SCADA)Electrical Power Monitoring Systems (EPMS)Data Analytics & Performance TrendingSQL and Data Querying
- Engineering Reporting & Dashboards
- Automation & Scripting Fundamentals
- Bachelor’s Degree in Mechanical Engineering.
- 3+ years of experience supporting industrial, commercial, utility, power generation, oil & gas, or data center facilities.
- Experience with mission-critical infrastructure design, operation, maintenance, or construction.
- Strong understanding of integrated mechanical and electrical systems.
- Ability to read and interpret engineering drawings, specifications, submittals, and applicable building codes.
- Valid driver's license and willingness to travel to project locations as required.
- Strong engineering judgment and technical decision-making.
- Exceptional troubleshooting and problem-solving capabilities.
- Excellent written and verbal communication skills.
- Strong organizational and project management abilities.
- Data-driven approach to reliability and performance improvement.
- Effective collaborator with multidisciplinary teams and stakeholders.
- Comfortable balancing office engineering work with hands-on field support.
- Committed to safety, operational excellence, and continuous improvement.
- Full-Time, Exempt
- $90,000-$115,000/year, DOE
- Health Coverage – Medical, Dental & Vision
- FSA Health and Dependent Care available
- 401(k) Plan
- Unlimited Paid Time Off (PTO)
- Observed Holidays Paid
- Cell Phone Allowance
- Collaborative, growth-driven culture
Experience & Qualifications
Key Strengths
Compensation
Benefits
Employment is contingent upon the successful completion of a background check and reference verification. All applicants must be authorized to work in the United States on a full-time basis.
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FAQs About Critical Infrastructure Mechanical Engineer - Marshfield, MO Jobs at STN Incorporated
What is the work location for this position at STN Incorporated?
This job at STN Incorporated is located in Marshfield, MO, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.
What pay range can candidates expect for this role at STN Incorporated?
Candidates can expect a pay range of $90,000 and $115,000 per year.
What employment applies to this position at STN Incorporated?
STN Incorporated lists this role as a Full-time position.
What experience level is required for this role at STN Incorporated?
STN Incorporated is looking for a candidate with "Senior-level" experience level.
What education level is required for this job?
The education requirement for this position is Engineering (PE). Candidates with relevant qualifications or equivalent experience may also be considered.
What benefits are offered by STN Incorporated for this role?
STN Incorporated offers following benefits: Health Insurance, Dental Insurance, Vision Insurance, Family/Dependent Health, Paid Holidays, Flexible/Unlimited PTO, Career Development, 401k Matching/Retirement Savings, and Home Office Reimbursement/Stipend for this position. Actual benefits may vary depending on the employer's policies and employment terms.
What is the process to apply for this position at STN Incorporated?
You can apply for this role at STN Incorporated either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.