Senior Mechanical Engineer - Mission Critical
for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). So we should map content accordingly. The posting includes "About Us", "About LJC", "The Specifics of the Role", "Requirements", "Some Things You Should Know", "Why Clayco and LJC?" (maybe not needed), "Benefits", "Compensation". We need to include sections only when posting has real specific content. We should not repeat job title as heading (none given). We should not include Job ID etc. Remove boilerplate etc. We need to preserve all substantive info.
We need to decide which sections to include: About Us (maybe as "About the company"? Not in list but we can use About Us
as it's a heading present. The instruction says use for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). It doesn't forbid other headings, but we should follow that pattern. Probably we can keep About Us and About LJC as separate sections? Might be considered "About Us" and "About LJC". Could combine? Better to keep as headings.
"The Specifics of the Role" could be "Responsibilities". Use Responsibilities
and list duties.
"Requirements" -> Requirements
list.
"Some Things You Should Know" maybe not needed; could be omitted or put under a generic section? It's not in the list; maybe we can omit as it's not required. But it contains substantive info: "No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!" That's substantive. Could be placed under a section like "About the role" or "Company culture". Since not in list, maybe we can create a heading like "About the role"? But we already have Responsibilities. Could incorporate into Responsibilities or a separate "Overview". The instruction: "Prefer a few substantive sections over many thin ones." So we could combine "Some Things You Should Know" into Responsibilities or About Us.
"Why Clayco and LJC?" includes awards; could be part of About Us or Benefits? Might be omitted? It's substantive but not in list. Could be placed under "About Us" as additional info.
"Benefits" -> Benefits
list.
"Compensation" -> The posting says "CompensationThe salary range for this position considers a wide range of factors..." No actual numbers or range. It says "Compensation decisions are dependent on the facts and circumstances of each case." That's vague, not a specific range. According to instruction: never create Pay/Schedule/Benefits sections unless the posting actually states them. It does mention compensation but no specific range or numbers. It says "The salary range for this position considers a wide range of factors..." but does not give a range. That's not specific. So we should not create a Pay/Salary section because no specific numbers. So we omit Compensation section.
Thus sections: About Us (maybe combine About LJC), Responsibilities, Requirements, Benefits.
We need to use - for any list of duties/requirements/benefits. For prose, use
.
We need to preserve all substantive info; do not invent or summarize away detail.
Let's extract content:
About Us: "Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects."
About LJC: "LJC Design & Engineering is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, and construction."
We could combine both into one About section, but we need to preserve all info. Could have two paragraphs.
The Specifics of the Role (Responsibilities): list each bullet:
- Lead the mechanical design and engineering of HVAC, plumbing, fire protection, and other building systems for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-reliability environments.
- Perform detailed mechanical system calculations and analyses, ensuring compliance with industry standards, codes, and best practices.
- Manage project timelines, budgets, and resources while coordinating with other engineering disciplines.
- Design and specify mechanical systems, including HVAC, piping, ventilation, and fire suppression systems for commercial, industrial, and institutional projects.
- Review and approve mechanical drawings, specifications, and submittals for quality and accuracy.
- Provide technical guidance and mentorship to junior engineers and other team members.
- Develop and present detailed reports, technical specifications, and design documentation for clients and project stakeholders.
- Collaborate with project managers to define project scope, schedule, and deliverables, ensuring client expectations are met.
- Oversee commissioning, testing, and start-up of mechanical systems to ensure proper operation.
- Manage and track project changes and ensure adherence to project goals, quality standards, and deadlines.
- Stay current with industry trends, emerging technologies, and new software tools to improve design processes and results.
Also "Some Things You Should Know": "No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!" Could be added as a paragraph under Responsibilities or separate section. Since we prefer few sections, we can add as a paragraph after Responsibilities list.
"Why Clayco and LJC?" includes awards: "2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal. 2025 ENR Top 400 – Top Data Center Contractor (Top 3). 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5). 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3)." Could be added as a paragraph under About Us or separate. We'll add as a paragraph after About section.
Requirements: list:
- Bachelor’s degree in Mechanical Engineering (or related field) from an ABET institution required.
- 10+ years of experience in Mechanical Engineering, with at least 3 years focused on mission-critical projects (data centers, high-tech manufacturing, etc.).
- PE License is required to seal engineering documents, with the ability to attain licenses in multiple states.
- Strong experience in HVAC, plumbing, fire protection systems, and building energy management.
- Proficiency in mechanical design software (e.g., AutoCAD, Revit, Trane, Carrier, or similar tools).
- Experience with building codes and standards (ASHRAE, NFPA, IMC, etc.) and local/regional codes and regulations.
- Experience working in a design-build or integrated project delivery (IPD) environment is a plus.
- Excellent communication, leadership, and problem-solving skills.
Benefits: list:
- Discretionary Annual Bonus: Subject to company and individual performance.
- Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more!
We need to format as
- each item.
Now produce HTML fragment: start with maybe but not required. Just output headings and content.
We'll do:
About Us
Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects.
LJC Design & Engineering is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, and construction.
2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal. 2025 ENR Top 400 – Top Data Center Contractor (Top 3). 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5). 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).
Responsibilities
- Lead the mechanical design and engineering of HVAC, plumbing, fire protection, and other building systems for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-reliability environments.
- Perform detailed mechanical system calculations and analyses, ensuring compliance with industry standards, codes, and best practices.
- Manage project timelines, budgets, and resources while coordinating with other engineering disciplines.
- Design and specify mechanical systems, including HVAC, piping, ventilation, and fire suppression systems for commercial, industrial, and institutional projects.
- Review and approve mechanical drawings, specifications, and submittals for quality and accuracy.
- Provide technical guidance and mentorship to junior engineers and other team members.
- Develop and present detailed reports, technical specifications, and design documentation for clients and project stakeholders.
- Collaborate with project managers to define project scope, schedule, and deliverables, ensuring client expectations are met.
- Oversee commissioning, testing, and start-up of mechanical systems to ensure proper operation.
- Manage and track project changes and ensure adherence to project goals, quality standards, and deadlines.
- Stay current with industry trends, emerging technologies, and new software tools to improve design processes and results.
No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!
Requirements
- Bachelor’s degree in Mechanical Engineering (or related field) from an ABET institution required.
- 10+ years of experience in Mechanical Engineering, with at least 3 years focused on mission-critical projects (data centers, high-tech manufacturing, etc.).
- PE License is required to seal engineering documents, with the ability to attain licenses in multiple states.
- Strong experience in HVAC, plumbing, fire protection systems, and building energy management.
- Proficiency in mechanical design software (e.g., AutoCAD, Revit, Trane, Carrier, or similar tools).
- Experience with building codes and standards (ASHRAE, NFPA, IMC, etc.) and local/regional codes and regulations.
- Experience working in a design-build or integrated project delivery (I
Responsibilities
and list duties. "Requirements" ->Requirements
list. "Some Things You Should Know" maybe not needed; could be omitted or put under a generic section? It's not in the list; maybe we can omit as it's not required. But it contains substantive info: "No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!" That's substantive. Could be placed under a section like "About the role" or "Company culture". Since not in list, maybe we can create a heading like "About the role"? But we already have Responsibilities. Could incorporate into Responsibilities or a separate "Overview". The instruction: "Prefer a few substantive sections over many thin ones." So we could combine "Some Things You Should Know" into Responsibilities or About Us. "Why Clayco and LJC?" includes awards; could be part of About Us or Benefits? Might be omitted? It's substantive but not in list. Could be placed under "About Us" as additional info. "Benefits" ->Benefits
list. "Compensation" -> The posting says "CompensationThe salary range for this position considers a wide range of factors..." No actual numbers or range. It says "Compensation decisions are dependent on the facts and circumstances of each case." That's vague, not a specific range. According to instruction: never create Pay/Schedule/Benefits sections unless the posting actually states them. It does mention compensation but no specific range or numbers. It says "The salary range for this position considers a wide range of factors..." but does not give a range. That's not specific. So we should not create a Pay/Salary section because no specific numbers. So we omit Compensation section. Thus sections: About Us (maybe combine About LJC), Responsibilities, Requirements, Benefits. We need to use- for any list of duties/requirements/benefits. For prose, use
. We need to preserve all substantive info; do not invent or summarize away detail. Let's extract content: About Us: "Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects." About LJC: "LJC Design & Engineering is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, and construction." We could combine both into one About section, but we need to preserve all info. Could have two paragraphs. The Specifics of the Role (Responsibilities): list each bullet: - Lead the mechanical design and engineering of HVAC, plumbing, fire protection, and other building systems for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-reliability environments. - Perform detailed mechanical system calculations and analyses, ensuring compliance with industry standards, codes, and best practices. - Manage project timelines, budgets, and resources while coordinating with other engineering disciplines. - Design and specify mechanical systems, including HVAC, piping, ventilation, and fire suppression systems for commercial, industrial, and institutional projects. - Review and approve mechanical drawings, specifications, and submittals for quality and accuracy. - Provide technical guidance and mentorship to junior engineers and other team members. - Develop and present detailed reports, technical specifications, and design documentation for clients and project stakeholders. - Collaborate with project managers to define project scope, schedule, and deliverables, ensuring client expectations are met. - Oversee commissioning, testing, and start-up of mechanical systems to ensure proper operation. - Manage and track project changes and ensure adherence to project goals, quality standards, and deadlines. - Stay current with industry trends, emerging technologies, and new software tools to improve design processes and results. Also "Some Things You Should Know": "No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!" Could be added as a paragraph under Responsibilities or separate section. Since we prefer few sections, we can add as a paragraph after Responsibilities list. "Why Clayco and LJC?" includes awards: "2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal. 2025 ENR Top 400 – Top Data Center Contractor (Top 3). 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5). 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3)." Could be added as a paragraph under About Us or separate. We'll add as a paragraph after About section. Requirements: list: - Bachelor’s degree in Mechanical Engineering (or related field) from an ABET institution required. - 10+ years of experience in Mechanical Engineering, with at least 3 years focused on mission-critical projects (data centers, high-tech manufacturing, etc.). - PE License is required to seal engineering documents, with the ability to attain licenses in multiple states. - Strong experience in HVAC, plumbing, fire protection systems, and building energy management. - Proficiency in mechanical design software (e.g., AutoCAD, Revit, Trane, Carrier, or similar tools). - Experience with building codes and standards (ASHRAE, NFPA, IMC, etc.) and local/regional codes and regulations. - Experience working in a design-build or integrated project delivery (IPD) environment is a plus. - Excellent communication, leadership, and problem-solving skills. Benefits: list: - Discretionary Annual Bonus: Subject to company and individual performance. - Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more! We need to format as
- each item.
Now produce HTML fragment: start with maybe but not required. Just output headings and content.
We'll do:
About Us
Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations. With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects.
LJC Design & Engineering is a full-service architecture, engineering, and design firm committed to enhancing the quality of the human experience through integrated design. We are a team of high-energy professionals who share a passion for design, a collaborative approach, and a casual culture. We solve challenges by leveraging the collective expertise and ingenuity of the best and brightest minds across development, design, and construction.
2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal. 2025 ENR Top 400 – Top Data Center Contractor (Top 3). 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5). 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).
Responsibilities
- Lead the mechanical design and engineering of HVAC, plumbing, fire protection, and other building systems for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-reliability environments.
- Perform detailed mechanical system calculations and analyses, ensuring compliance with industry standards, codes, and best practices.
- Manage project timelines, budgets, and resources while coordinating with other engineering disciplines.
- Design and specify mechanical systems, including HVAC, piping, ventilation, and fire suppression systems for commercial, industrial, and institutional projects.
- Review and approve mechanical drawings, specifications, and submittals for quality and accuracy.
- Provide technical guidance and mentorship to junior engineers and other team members.
- Develop and present detailed reports, technical specifications, and design documentation for clients and project stakeholders.
- Collaborate with project managers to define project scope, schedule, and deliverables, ensuring client expectations are met.
- Oversee commissioning, testing, and start-up of mechanical systems to ensure proper operation.
- Manage and track project changes and ensure adherence to project goals, quality standards, and deadlines.
- Stay current with industry trends, emerging technologies, and new software tools to improve design processes and results.
No other builder can offer the collaborative design-build approach that Clayco does. We work on creative, complex, award-winning, high-profile jobs. The pace is fast!
Requirements
- Bachelor’s degree in Mechanical Engineering (or related field) from an ABET institution required.
- 10+ years of experience in Mechanical Engineering, with at least 3 years focused on mission-critical projects (data centers, high-tech manufacturing, etc.).
- PE License is required to seal engineering documents, with the ability to attain licenses in multiple states.
- Strong experience in HVAC, plumbing, fire protection systems, and building energy management.
- Proficiency in mechanical design software (e.g., AutoCAD, Revit, Trane, Carrier, or similar tools).
- Experience with building codes and standards (ASHRAE, NFPA, IMC, etc.) and local/regional codes and regulations.
- Experience working in a design-build or integrated project delivery (I
- each item.
Now produce HTML fragment: start with maybe but not required. Just output headings and content.
We'll do: