Full-Time

Senior Mechanical Engineer

Thermo/Fluid Systems

SI Solutions

SI Solutions

1-10 employees

Specialized professional services for critical infrastructure

Compensation Overview

$96.9k - $153.8k/yr

+ Performance-based bonus + 401(k) employer match

Denver, CO, USA

In Person

Approximately 25% travel annually, including periodic field inspections and power plant visits.

Bachelor's, Master's

Category
Mechanical Engineering (1)
Required Skills
SQL
VBA
FEM/FEA
Excel/Numbers/Sheets

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Requirements
  • A Bachelor or Master degree in Mechanical Engineering or a related discipline.
  • 7–10 years of progressive experience in turbomachinery engineering, including steam and gas turbine design, analysis, or field engineering.
  • Proficiency in finite element analysis tools such as ANSYS and Abaqus and thermo-fluid simulation software.
  • Strong understanding of turbomachinery operation, thermodynamics, fluid mechanics, fracture mechanics, fatigue, and finite element methods.
  • Advanced computer skills, including Microsoft Excel; experience with Mathcad, SQL, and scripting such as VBA or similar is a plus.
  • Ability to comply with annual respirator fit testing and drug-free workplace requirements.
Responsibilities
  • Perform advanced thermal and structural stress analyses of turbomachinery components, gas and steam turbine rotors, and auxiliary equipment using classical methods and finite element analysis tools such as ANSYS and Abaqus.
  • Develop and apply system- and component-level thermo-fluid and performance models for steam and gas turbines, including Digital Twin models using AxStream for predictive analytics and lifecycle management.
  • Conduct ASME Code evaluations and ensure compliance with applicable industry standards and best practices.
  • Utilize thermo-fluid simulation tools such as AxStream, ANSYS Fluent, and STAR-CCM+ to evaluate flow behavior, operating conditions, and performance characteristics, and generate boundary conditions for subsequent thermo-structural analysis and remaining life assessment.
  • Support nondestructive examinations and condition assessments, including metallurgical replication, hardness testing, ultrasonic inspection, and related techniques.
  • Provide technical input for failure investigations, root cause evaluations, and remaining life assessments.
  • Prepare technical reports and client-facing presentations summarizing analyses, findings, and engineering recommendations.
  • Contribute to internal research and development initiatives focused on automation, artificial intelligence-enabled methodologies, and continuous improvement of analysis techniques.
  • Support project managers in executing complex, multidisciplinary engineering projects.
  • Lead or independently manage technical tasks and small- to moderate-scale projects as appropriate.
  • Ensure technical quality through peer review, documentation, and adherence to internal standards.
  • Maintain financial responsibility and comply with company guidelines related to project execution, expenses, and scheduling.
  • Travel approximately 25% annually, primarily during power plant outage seasons, for field inspections and reverse engineering activities at client or SIA facilities.
  • Perform occasional field work in operating power plant environments, which may include exposure to heat, noise, and confined space.
Desired Qualifications
  • Professional Engineer license preferred or willingness to pursue licensure.

SI Solutions provides professional and specialty services to owners of critical infrastructure assets. It works with sectors such as nuclear power, power generation, controls, utility and energy, critical infrastructure, and process industries across the US and worldwide. Its services help asset owners maintain and operate facilities through engineering, consulting, and field support, focusing on reliability, safety, and regulatory compliance. The company differentiates itself by its deep domain expertise in critical infrastructure and its global reach across multiple high-stakes industries, rather than selling hardware or generic consulting. Its goal is to be a leading provider of professional and specialty services for critical infrastructure asset owners.

Company Size

1-10

Company Stage

N/A

Total Funding

N/A

Headquarters

Charlotte, North Carolina

Founded

2023

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Simplify Jobs

Simplify's Take

What believers are saying

  • February 2026 bought Radiological Solutions, expanding nuclear engineering capabilities immediately.
  • September 2025 bought Integrity Specialists, boosting natural-gas pipeline inspection scale.
  • MidOcean still labels SI Solutions a current portfolio company, signaling continued capital support.

What critics are saying

  • MidOcean's roll-up strategy increases integration failure risk across 14 offices and 600 employees.
  • Nuclear and pipeline work faces strict NRC, PHMSA, and client audit scrutiny.
  • A major client loss or failed acquisition integration would cripple the platform's valuation.

What makes SI Solutions unique

  • MidOcean backed SI Solutions owns engineering, testing, and inspection across critical infrastructure.
  • Its platform spans nuclear, pipeline, power, process, and structural engineering niches.
  • Acquisitions of SC Solutions, Integrity Specialists, and Radiological Solutions broaden technical depth.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Remote Work Options

Paid Vacation

Paid Sick Leave

Parental Leave

401(k) Company Match

Company News

The Tidewater News
Sep 2nd, 2025
SI Solutions Expands Pipeline Inspection Reach Through Acquisition of Integrity Specialists, LLC

HUNTERSVILLE, N.C., Sept. 2, 2025 /PRNewswire/ - SI Solutions, LLC ("SIS") proudly announces the acquisition of Integrity Specialists, LLC ("Integrity Specialists"), a critical provider of advanced non-destructive examination (NDE) and inspection for the natural gas pipeline industry.

Business Wire
Aug 17th, 2024
MidOcean Partners Acquires SI Solutions, a Leading Provider of Engineering Solutions for Critical Infrastructure

MidOcean Partners (“MidOcean”), a premier New York-based alternative asset manager specializing in middle-market private equity, structured capital, a

PE Hub
Aug 15th, 2024
MidOcean Partners snaps up engineering firm Si Solutions

MidOcean Partners has acquired Si Solutions, a US-based provider of engineering solutions for critical infrastructure.

PR Newswire
Jan 4th, 2024
Si Solutions Expands Structural Engineering Expertise And Adds Controls Engineering Division With The Acquisition Of Sc Solutions, Inc.

CHARLOTTE, N.C., Jan. 4, 2024 /PRNewswire/ -- SI Solutions is pleased to announce the purchase of SC Solutions, Inc., a respected provider of innovative engineering solutions for the advanced process controls and structural engineering industries. Founded in 1987, SC Solutions has served its clients in Silicon Valley and beyond, expanding to Sacramento, CA, Portland, OR, and Atlanta, GA.SI Solutions, a privately held company, is a leading provider of mission-critical engineering, construction, testing, and maintenance services to the energy, process, and infrastructure markets. SI Solutions has over 500 employees and ten offices serving customers across the U.S. and internationally. SI's capabilities span multiple technical disciplines, with a focus on specialized engineering, instrumentation, electrical design and construction, and advanced nondestructive examination.This addition to SI Solutions grows our capabilities in supporting our critical infrastructure clients