Mechanical Engineer

SpecPro Sustainment and Environmental, LLC is looking for a Mechanical Engineer to provide on-site Advisory and Assistance Services (A&AS) at Naval Air Station Jacksonville, FL. This role supports the Engineering and Design Division (D4) of the Design and Construction Business Line (DCBL), contributing to critical Navy and Marine Corps infrastructure initiatives.If you’re an experienced mechanical engineer who thrives in a collaborative environment and is passionate about creating safe, efficient, and sustainable systems—especially with expertise in Fire Protection Systems—we’d love to meet you!What You’ll Do:Prepare detailed designs, plans, specifications, and cost estimates for various mechanical systems including HVAC, plumbing, compressed air, energy systems, control systems, and utility systems.Support major and complex projects (including MILCON) for government facilities such as offices, hospitals, manufacturing plants, and waterfront structures.Deliver mechanical engineering services for projects involving renewable energy systems, power distribution, air pollution control, and process piping.Ensure all designs comply with DoD and Navy specifications, as well as relevant codes and regulations at all levels.Work closely with stakeholders and other engineering disciplines to integrate mechanical systems into comprehensive project designs.Provide independent and expert-level mechanical engineering consultation for the planning, design, construction, and maintenance of diverse Navy and Marine Corps facilities.What You Bring:Required:Bachelor’s degree from an ABET-accredited Mechanical Engineering program (preferred), with relevant facilities design experience.Strong command of mechanical engineering principles and software tools used in construction and utilities design.Working knowledge of ASME, ASHRAE, NFPA, SMACNA, IMC, IPC, and IBC codes and standards.Proficiency with Autodesk products, Microsoft Office, and mechanical design/analysis tools.Excellent written and verbal communication skills for analysis, documentation, and team coordination.Experience with project budgeting, planning, and safety compliance.Preferred:Professional Engineer (PE) registration in Mechanical Engineering is desired.Fire Protection Systems Background Highly Desired.Experience designing or analyzing fire suppression, detection, and alarm systems—or working with NFPA codes.Work Environment:This is a full-time, on-site role (Monday through Friday, standard 8-hour shifts) located at Naval Air Station Jacksonville, FL.What We Offer:Competitive compensationFull suite of benefitsA chance to work on projects that support national defense and community developmentPaid holidaysPaid time off including sick and vacation leaveMedical, dental and vision insuranceFlexible spending accountsShort and long term disabilityCompany paid life insurance401(k) with a company match and discretionary profit sharingTuition reimbursementSalary Range: $125,000 – $135,000 annually, depending on experience.About Us:SpecPro Sustainment and Environmental, LLC, a subsidiary of Bristol Bay Native Corporation (BBNC), is an environmental, energy, and facility services firm based in San Antonio, TX. We value innovation, teamwork, and service-driven excellence.Submit your resume, qualifications, and salary expectations to be considered. Employment offers are subject to successful background checks as required by federal and state laws.SSE is an Equal Opportunity Employer. Employment decisions are made without regard to any protected category. Hiring preference will be given to BBNC shareholders, their spouses and descendants and Alaska Natives in accordance with Public Law 93-638.PayTypeSalary