Mechanical Fitter/HVAC Technician

We are seeking a skilled and experienced Mechanical Fitter/HVAC Technician to perform installation, fabrication, maintenance, and repair of mechanical piping systems across commercial and industrial facilities. The ideal candidate will have hands-on experience working with various piping materials and HVAC systems, possess a strong understanding of mechanical schematics and blueprints, and be committed to delivering high-quality workmanship in compliance with safety and industry standards. Primary Responsibilities:Install, fabricate, maintain, and repair piping systems carrying water, steam, air, gas, chemicals, and other fluids in commercial and industrial environments.Work with a variety of materials including carbon steel, stainless steel, copper, plastic piping, and other specialized materials.Inspect and troubleshoot mechanical and plumbing systems to identify and resolve leaks, blockages, corrosion, or equipment failures.Replace or repair damaged or faulty piping, valves, pumps, and fixtures to ensure system integrity and performance.Perform routine maintenance to ensure safety, efficiency, and longevity of mechanical systems.Assemble piping using welding, brazing, soldering, threading, grooving, and mechanical fittings with appropriate tools and equipment.Install and commission mechanical service piping systems including HVAC, chilled water, steam, compressed air, fire protection, and other process piping.Conduct pressure tests to detect leaks and verify system alignment and compliance with design and performance standards.Read and interpret piping blueprints, isometric drawings, P&IDs (Piping and Instrumentation Diagrams), and building plans to guide work.Coordinate system layouts, installations, and repairs with other trades and construction teams to meet project timelines and specifications.Basic QualificationsAbility to obtain a Top Secret/SCI with Polygraph.High school diploma or equivalent.2–4 years of relevant hands-on experience in automotive maintenance and repair.Completion of a formal training program in automotive technology or a related field.Proficient in diagnosing mechanical and electrical issues using diagnostic tools such as motor analyzers, pressure gauges, and factory manuals.Ability to disassemble, repair, and reassemble engines, transmissions, and other major automotive systems.Skilled in using standard hand tools and power tools commonly used in automotive repair.Working knowledge of cooling systems, hydraulics, pneumatics, and preventive maintenance practices.Familiarity with performing routine vehicle inspections and safety checks.Ability to work independently with limited supervision and solve moderately complex mechanical problems.Preferred QualificationsA Top Secret/SCI with Polygraph clearance.Associate degree or vocational certification in Automotive Technology, Diesel Mechanics, or a related technical field.5+ years of experience in maintaining and repairing a wide range of vehicles including trucks, buses, and forklifts.ASE (Automotive Service Excellence) certification or equivalent industry credentials.Advanced troubleshooting and failure analysis skills.Experience working with both hydraulic and pneumatic systems in industrial or fleet settings.Knowledge of energy-efficient automotive systems and technologies.Familiarity with project management principles as they relate to repair timelines and parts procurement.Demonstrated understanding of quality control standards and vehicle compliance requirements.Strong safety record and knowledge of relevant occupational safety standards.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.Original Posting:December 4, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.Pay Range:Pay Range -The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.