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Engineering Jobs in Ashburn, VA (Now Hiring) — 279 open

Fidelity Building Services Group logoFidelity Building Services Group

HVAC Service Technician

Ashburn, Virginia, United States · On-site

Mid level

Ready for a career upgrade? Fidelity Mechanical Services is looking for skilled HVAC Journeyman Service Technicians to join our growing team in Ashburn, VA! As an HVAC Journeyman Service Technician, you will be responsib…

Skills: HVAC Diagnosis, Preventive Maintenance, Commercial HVAC Systems, Refrigerant Recovery, Electrical Troubleshooting

TekSynap logoTekSynap

Senior Data Engineer

Ashburn, Virginia, United States · On-site

$150k–$200k/yr

Senior

Responsibilities & Qualifications We are seeking a highly skilled Senior Data Engineer to lead and execute critical engineering tasks in support of an advanced visual analytic application. This role requires a motivated …

Skills: Data Engineering, Database Architecture, High-Performance Computing, Relational Databases, Data Visualization

Timmons Group logoTimmons Group

Senior Project Engineer

Ashburn, Virginia, United States · On-site

$100k–$150k/yr

Senior

Job Description Timmons Group is always accepting applications from experienced Senior Project Engineer candidates to join our team for future opportunities. While we may not have an immediate need at your level in your …

Skills: Engineering Design, Project Management, QA/QC, Technical Writing, Problem Solving

Timmons Group logoTimmons Group

Construction Administrator

Ashburn, Virginia, United States · On-site

$90k–$110k/yr

Mid level

Job Description We are currently seeking a Construction Administrator for our Land Development Group to serve our Ashburn VA office. A Construction Administrator oversees the construction phase of the project from a cont…

Skills: Contract Administration, Project Coordination, Cost Estimating, Construction Scheduling, Civil Engineering Site Plans

Mantis Innovation logoMantis Innovation

BMS Service Project Manager

Ashburn, Virginia, United States · Hybrid

$115k–$130k/yr

Senior

About Mantis We help organizations improve how their buildings perform by bringing together energy, facility operations, and sustainability into one connected approach. At Mantis, our teams work across the full lifecycle…

Skills: BMS Service Management, Building Automation Systems, HVAC Controls, Technical Troubleshooting, Project Coordination

Mantis Innovation logoMantis Innovation

Senior BMS Service Technician

Ashburn, Virginia, United States · On-site

$85k–$125k/yr

Mid level

About Mantis We help organizations improve how their buildings perform by bringing together energy, facility operations, and sustainability into one connected approach. At Mantis, our teams work across the full lifecycle…

Skills: BMS Troubleshooting, Tridium Niagara N4, HVAC Controls, Commissioning, System Configuration

Leidos logoLeidos

Operations & Maintenance Cloud Engineer

Ashburn, Virginia, United States · Hybrid

$108k–$195k/yr

Senior+

The Homeland Sector has an opening for an Operations & Maintenance Cloud Engineer supporting the CBP TPVS program in Ashburn, Virginia. This role supports Passenger Systems Program Directorate (PSPD) within Customs and B…

Skills: AWS Cloud, DevSecOps, Technical Triage, Troubleshooting, Prometheus

Mantis Innovation logoMantis Innovation

Senior Technical Recruiter, Building Controls

Ashburn, Virginia, United States · Hybrid

$85k–$95k/yr

Senior

About Mantis We help organizations improve how their buildings perform by bringing together energy, facility operations, and sustainability into one connected approach. At Mantis, our teams work across the full lifecycle…

Skills: Full-cycle Recruiting, Technical Sourcing, Candidate Pipeline Management, Talent Mapping, Stakeholder Management

M.C. Dean, Inc. logoM.C. Dean, Inc.

Material Handler Supervisor

Ashburn, Virginia, United States · On-site

Senior

Overview About M.C. Dean M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastr…

Skills: Material Management, Equipment Operations, Inventory Tracking, Logistics Planning, Team Management

Impyrian logoImpyrian

Full Stack Developer - Mid

Ashburn, Virginia, United States · Hybrid

$85k–$100k/yr

Senior

CORPORATE OVERVIEW At Impyrian, our commitment to excellence, client-centric approach, and deep industry expertise set us apart. We strive to be a trusted partner for organizations seeking to embrace digital transformati…

Skills: JavaScript, Angular, Spring Boot, Spring MVC, Java Web Services

Performance Contracting, Inc. (PCI) logoPerformance Contracting, Inc. (PCI)

Design Engineer

Ashburn, Virginia, United States · On-site

Mid level

Company Overview Performance Contracting Group is a national employee-owned specialty contractor that offers quality services and products to the commercial, industrial, and non-residential construction markets. We are c…

Skills: Revit, AutoCAD, Navisworks Manage, BIM 360 Design/Glue, BIM Coordination

Meta logoMeta

Leased Facility Project Manager

Ashburn, Virginia, United States · On-site

$143k–$198k/yr

Senior+

Meta is seeking a Leased Facility Project Manager to support the strategic management and operational oversight of leased data center facilities within our global Data Center Operations portfolio. In this role, you will …

Skills: Project Management, Data Center Operations, Colocation Management, Vendor Management, Contract Negotiation

Digital Realty logoDigital Realty

Site Engineer I

Ashburn, Virginia, United States · On-site

$37/hr–$41/hr

Entry level$14B raised

Position Title: Site Engineer I Your role The Site Engineer I position is a contributing member to the site level Data Center Operations team assigned to one or more of our data center properties reporting directly to th…

Skills: Mission Critical Infrastructure, Electrical Engineering, Mechanical Engineering, UPS Systems, HVAC Systems

NTT Global Data Centers logoNTT Global Data Centers

989 - Data Center Technician L1

Ashburn, Virginia, United States · On-site

$33/hr–$61/hr

Mid level

Make an impact at NTT Global Data Centers Join NTT Global Data Centers and be part of a team that drives innovation and sustainability in the digital world. With over 150 data centers across more than 20 countries global…

Skills: Electrical Distribution, HVAC Systems, Fire Life Safety Systems, Critical Power Distribution, UPS Systems

Leidos logoLeidos

Full Stack Developer

Ashburn, Virginia, United States · Hybrid

$131k–$237k/yr

Senior+

The Homeland Sector within Leidos is seeking a Full Stack Developer with strong systems, software, cloud, and Agile experience to support a complex program to provide Agile development and operations and maintenance for …

Skills: Java, JavaScript, React, Angular, Spring

CloudHQ, LLC logoCloudHQ, LLC

Commissioning Manager - Mechanical

Ashburn, Virginia, United States · On-site

Senior

Description Who We Are Our purpose at CloudHQ is to provide flexible, efficient and resilient data center solutions to businesses of all sizes. Our growing organization was founded by the pioneer of data center REITs. Cl…

Skills: Mechanical Commissioning, Data Center Infrastructure, Design Review, Functional Testing, Project Management

ABM Industries logoABM Industries

Critical Facilities HVAC Technician

Ashburn, Virginia, United States · On-site

Mid level$2.2B raised

The Critical Facilities HVAC Technician -is responsible for operating, maintaining, troubleshooting, and repairing HVAC and mechanical systems supporting continuous mission-critical data center operations. This role prov…

Skills: HVAC Maintenance, Troubleshooting, Chilled Water Systems, Airflow Management, Humidity Control

Celestar Holdings Corporation logoCelestar Holdings Corporation

DevSecOps Engineer

Ashburn, Virginia, United States · On-site

Senior

Description DevSecOps Engineer: At B&A, we foster and embrace a distinct set of values that we live by and instill in all aspects of our organization: dedication, commitment, partnership, trust, and recognition. We have …

Skills: DevSecOps, GitLab CI, Kubernetes, ArgoCD, Terraform

Celestar Holdings Corporation logoCelestar Holdings Corporation

Senior AI Systems Architect

Ashburn, Virginia, United States · On-site

Senior+

Description Senior AI Systems Architect: At B&A, we foster and embrace a distinct set of values that we live by and instill in all aspects of our organization: dedication, commitment, partnership, trust, and recognition.…

Skills: Generative AI, LLM Architectures, RAG Frameworks, MLOps, Computer Vision

Celestar Holdings Corporation logoCelestar Holdings Corporation

Quality Assurance Tester

Ashburn, Virginia, United States · On-site

Senior

Description Quality Assurance Tester: At B&A, we foster and embrace a distinct set of values that we live by and instill in all aspects of our organization: dedication, commitment, partnership, trust, and recognition. We…

Skills: Test Plan Design, Automation Scripting, Core Java, JavaScript, Rest Assured

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Showing 1–20 of 279

Fidelity Building Services Group logo

HVAC Service Technician

Fidelity Building Services Group

Ashburn, Virginia, United States • On-site

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Mid level

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  • Full-time
  • professional certificate
  • Medical insurance, Dental insurance, Vision insurance, Life insurance, Disability insurance, 401(k) with company match
  • Posted 11h ago
  • ~40 hrs/week

Responsibilities

The technician is responsible for diagnosing, repairing, and maintaining commercial and industrial HVAC equipment, including RTUs, chillers, and boilers. They must perform preventive maintenance and provide accurate documentation of service calls in company software.

Requirements

Candidates need at least 4 years of commercial HVAC experience or a completed apprenticeship and a valid EPA Universal Refrigerant Certification. A valid driver's license and the ability to perform physical tasks like lifting 50+ lbs are required.

Full job description

Ready for a career upgrade?

Fidelity Mechanical Services is looking for skilled HVAC Journeyman Service Technicians to join our growing team in Ashburn, VA!

As an HVAC Journeyman Service Technician, you will be responsible for diagnosing, repairing, and maintaining commercial, data center, and industrial HVAC equipment at customer sites. This role requires strong technical ability, excellent customer communication skills, and the ability to work independently in a fast-paced service environment.

Don’t just work a job — build your career. Apply today and let’s grow together!

 

Key Responsibilities

  • Perform preventive maintenance and service on commercial HVAC systems, including RTUs, AHUs, CRAC units, VAVs, heat pumps, chillers, boilers, cooling towers, and pumps.
  • Diagnose and repair HVAC system issues, troubleshooting mechanical, electrical, and refrigerant-related faults, including leak detection, recovery, charging, and performance testing per EPA regulations.
  • Support building automation and controls, including troubleshooting, adjustments, and interpreting mechanical drawings, wiring diagrams, and control schematics.
  • Service and maintain system components, such as coils, belts, bearings, motors, filters, and related mechanical parts.
  • Complete emergency and scheduled service calls, providing accurate documentation in company software, including parts used, diagnostics, recommendations, and labor.
  • Communicate effectively with customers and internal teams regarding service findings and next steps, while adhering to all company safety policies and participating in the on-call rotation.

Qualifications

  • 4+ years of commercial HVAC service experience or completion of a recognized HVAC apprenticeship.
  • Valid EPA Universal Refrigerant Certification.
  • Strong knowledge of commercial HVAC systems, controls, and refrigeration fundamentals.
  • Experience in mission-critical environments (data centers, telecom facilities, etc.).
  • Ability to diagnose electrical, mechanical, and refrigerant system issues without supervision.
  • Strong communication skills and professional customer interaction.
  • Valid driver’s license and acceptable driving record.
  • Ability to lift 50+ lbs, work on ladders, rooftops, and in mechanical rooms.


Why You’ll Love Working Here

  • Competitive pay & benefits package
  • Health & Wellness: Comprehensive medical, dental, and vision plans to keep you and your family covered, including free preventive care and affordable prescription options.
  • Life & Disability Insurance: Company-paid life insurance and disability coverage, with options to enhance your benefits.
  • Retirement Savings: 401(k) plan with a generous company match to help secure your future, with immediate vesting.
  • Paid Time Off: Enjoy paid holidays and a PTO plan that grows with your years of service.
  • Opportunities for Career Advancement & Professional Development: We provide education assistance to help you grow your skills and your career.
  • Extra Perks: Flexible spending accounts, employee discounts, and 24/7 confidential support through our Employee Assistance Program.

About Us:

Fidelity Mechanical Services is the premier provider of HVAC/Mechanical design, installation, and service in the Mid-Atlantic region. We provide precision end-to-end Mechanical and Energy Solutions for some of the nation’s leading developers, property managers, mission-critical facilities, and Fortune 500 companies.  

For over 75 years, our mission has been to create high-performance buildings by applying the latest in energy efficiency technologies and to deliver Proactive, World-Class Service. 

Related keywords

HVACJourneymanEPA Universal CertificationRTUAHUCRAC UnitsVAVHeat PumpsChillersBoilersCooling TowersPumpsBuilding AutomationData CentersMission-Critical EnvironmentsRefrigeration

About Fidelity Building Services Group

LinkedInVisit site
Industry
Commercial and Industrial Machinery Maintenance
Company size
1,001-5,000 employees
Headquarters
Hunt Valley , Maryland
LinkedIn followers
3,648

Fidelity Building Services Group (Fidelity) is one of the nation's leading providers of HVAC/Mechanical Services, Building Automation, Emergency Power, and Energy Solutions serving the Commercial/Industrial, Mission-Critical, Government, Education, and Healthcare markets. Fidelity’s leaders are some of the most highly regarded individuals in the service, construction, and engineering communities. Collectively, we share a commitment to advancing the cause of building energy efficiencies, sustainable energy solutions, and service excellence. Founded in 1945 as a full-service mechanical engineering, contracting, and service company, Fidelity helped introduce air conditioning and process cooling to a new marketplace. Today, through strategic acquisitions and partnerships, Fidelity has expanded its geographic footprint to more than 75 locations throughout the United States. With over 80 years of excellence and 3,000 Team Members, Fidelity remains obsessed with delivering Proactive, World-Class Service.

Offices: 235 Schilling Cir, Suite 100, Hunt Valley , Maryland 21031, US

generatorsHVACmechanical servicesmechanical engineeringpower systemsbuilding automation and controlssystems integrationmechanical servicesbuilding mechanical systemsHVAC systems
View all jobs at Fidelity Building Services Group

Frequently asked questions

How many Engineering jobs are open in Ashburn, VA right now?

There are currently 279 open engineering positions in Ashburn, VA listed on Clera. New openings are added daily as companies post roles.

Which companies are hiring for Engineering roles in Ashburn, VA?

Companies currently hiring include Oracle, Timmons Group, NTT Global Data Centers, CPG, Leidos, among others. Browse the listings above to see every active employer.

Are there remote or hybrid Engineering jobs in Ashburn, VA?

Yes — 57 of the 279 open engineering positions offer remote or hybrid work (11 remote, 46 hybrid).

How do I apply for Engineering jobs in Ashburn, VA?

Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.

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