Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal Mechanical Engineer

$120k - $180k

Columbia Energy

Job Description

Job Description

Principal Mechanical Engineer

Location: Richland, WA
Company: Columbia Energy & Environmental Services
Salary: $120,000 – $180,000 DOE

About Columbia Energy

Columbia Energy & Environmental Services, headquartered in Richland, WA, is a well-established small business with a strong track record of delivering comprehensive solutions in engineering, design, fabrication, instrumentation and controls, and other specialized services. With expertise in fixed-price design/build/test projects, we serve both federal and commercial clients, consistently delivering high-quality results through innovation and technical precision.

Our collaborative and experienced team is committed to providing practical, client-focused solutions tailored to address a wide range of challenges. Recently, we expanded our operations to Idaho Falls, ID, reflecting our ongoing growth and dedication to broadening our capabilities. We take pride in maintaining a strong reputation for quality and integrity while ensuring compliance with rigorous industry standards.

Why Join Columbia Energy?

At Columbia Energy, we foster a supportive and innovative environment where team members can thrive. As a growing small business with ambitious goals, we value initiative, teamwork, and a dedication to quality. This role offers the opportunity to lead impactful projects, serve as a mentor to junior engineers, and play a key role in advancing our technical capabilities. Veterans are strongly encouraged to apply.

Position Overview

We are seeking an accomplished Principal Mechanical Engineer to join our team in Richland, WA. This role provides opportunities to serve as a technical lead, project engineer, and mentor to project teams while contributing to complex design/build/test projects. The successful candidate will bring a combination of deep technical expertise, leadership ability, and a collaborative mindset to drive innovative solutions for nuclear and hazardous waste remediation, chemical processing, and nuclear ventilation systems.

Essential Responsibilities & Duties

Leadership & Mentorship

  • Lead multi-disciplinary project teams in the execution of complex design/build/test projects, ensuring scope, schedule, and budget objectives are met.
  • Act as a mentor and resource for junior engineers and designers, fostering technical growth and professional development.

Technical Expertise

  • Provide strategic technical leadership in mechanical design, collaborating with engineers, designers, and shop staff.
  • Conduct design analysis and reviews to ensure compliance with applicable industry codes and standards (e.g., ASME B31.3, ASME B&PV, ASME AG-1).
  • Develop and oversee test plans and procedures, supporting system testing and troubleshooting.
  • Maintain configuration control of baseline drawings and documents while ensuring accuracy and quality of design deliverables.

Project Collaboration & Fabrication Support

  • Work closely with fabrication teams to ensure designs are manufacturable and optimized for production.
  • Apply hands-on experience in fabrication processes to support design, manufacturability, and troubleshooting during production.
  • Provide clear communication and updates to project stakeholders regarding task status, technical challenges, and progress.
  • Support continuous improvement initiatives in design and fabrication processes to enhance efficiency and quality.

Required Qualifications

  • Bachelor’s degree in Mechanical Engineering (ABET-accredited) or higher.
  • Registered Professional Engineer (PE).
  • Minimum of 15 years of demonstrated experience in mechanical engineering design.
  • Proven experience leading and managing project teams across disciplines.
  • Extensive experience preparing design deliverables, resolving technical review comments, and finalizing design packages.
  • Strong attention to detail with ability to work collaboratively in a team environment.
  • Self-motivated with a focus on project needs and delivery schedules.
  • U.S. citizenship and ability to obtain government security clearance (required for federal contract work).

Preferred Qualifications

  • ASME NQA-1 or DOE project experience.
  • Project management experience.
  • Hands-on fabrication experience, with ability to provide design input to optimize manufacturability.
  • Experience supporting projects at nuclear facilities or within Navy Nuclear Power systems.
  • Willingness to embrace new challenges and contribute to team growth.

Key Success Attributes

  • Leader & Mentor: Guides technical teams and supports professional development.
  • Technically Proficient: Deep understanding of mechanical design and industry codes/standards.
  • Collaborative: Works effectively across engineering, design, and fabrication teams.
  • Detail-Oriented: Ensures high-quality deliverables and compliance with requirements.
  • Adaptable: Able to manage competing priorities in a dynamic project environment.

Equal Opportunity Employer

Columbia Energy is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, sexual orientation, gender identity, protected veteran status, or any other characteristic protected by federal and state law.

 

Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the Principal Mechanical Engineer in Washington DC vacancy
  •  ...application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Principal Mechanical Engineer Full Time Management Arlington, VA, US 4 days ago Requisition ID: 1471 Overview The Principal Mechanical... 
    Suggested
    Full time
    Local area

    Cummings Aerospace

    Arlington, VA
    2 days ago
  •  ...the same cost-reduction curve that has made wind, solar, and batteries cheaper every year. Position Summary The Principal Mechanical Engineer serves as the senior technical authority within Blue Energy's Owner's Engineering organization, leading the design, integration... 
    Suggested
    For contractors
    Remote work

    blueEnergy Group

    Silver Spring, MD
    5 days ago
  •  ...to join us?This role is part of Alcon's Engineering function, a team focused on improving...  ...to help deliver brilliant outcomes.The Principal, Molding & Tooling Engineering (Science...  ...EXPERIENCE:Degree in Engineering (Plastics or Mechanical Engineering strongly preferred but open... 
    Suggested
    Hourly pay
    Full time
    Contract work
    Monday to Friday
    Flexible hours

    Alcon Pharma

    Alexandria, VA
    4 days ago
  • $146.3k - $306.4k

     ...Leads and sets direction for the design and development of mechanical systems including components, enclosures, and packaging, ensuring...  ...and corrective action plans. Leads high impact mechanical engineering initiatives, fostering a culture of technical excellence and... 
    Suggested
    Temporary work
    Flexible hours
    Shift work

    Oracle

    Washington DC
    5 days ago
  • $119k

     ...Crosslinked Jobs/Thermoplastics/Principal Mechanical Engineer One of 4,176 polymer and materials roles on Crosslinked, each read for materials, degree, visa and salary. See roles like this VO Principal Mechanical Engineer VoltForce ~ Mount Laurel, NJtodayverified... 
    Suggested
    Permanent employment
    Full time
    Contract work
    Overseas
    Flexible hours

    Crosslinked

    Laurel, MD
    2 days ago
  • $150k - $205k

     ...place for you. Let's build the future, together.   About the Role   To build our space systems, we need an exceptional mechanical engineer to own the top-level mechanical design, CAD configuration, and physical integration of a clean-sheet cargo vehicle.  You will... 
    Permanent employment

    Gravitics, Inc

    Washington DC
    8 days ago
  • $160k - $185k

     ...Title: Manager, Mechanical Process Engineering (Life Sciences) Location: Greater Baltimore, MD Schedule: Hybrid with 2 days onsite each week About the Opportunity: Our client is seeking a Manager, Mechanical Process Engineering to lead a growing Life Sciences... 
    Work at office
    Flexible hours
    2 days per week

    Tier4 Group

    Washington DC
    3 days ago
  •  ...Hanwha Defense USA (HDUSA) seeks a Director, Engineering – Naval Shipbuilding to serve as deputy leader of a growing U.S. naval shipbuilding engineering organization. This role integrates international design and production expertise with U.S. Navy requirements and... 

    Jobleads-US

    Arlington, VA
    6 hours ago
  •  ...SENIOR MANAGER, AVIONICS MECHANICAL ENGINEERING | SEATTLE, WA Build the mechanical backbone of the world's first AI-piloted fighter jet...✈️ This isn't a concept. Prototypes are built. Flight testing starts this year. And the mechanical systems that protect and... 
    Full time

    Apera

    Washington DC
    1 day ago
  • $165k - $190k

     ...Opportunity Top Level International is conducting a search for an experienced Director of Engineering to join an industry-leading organization specializing in large-scale mechanical and plumbing infrastructure solutions for occupied multifamily communities across the... 
    Full time
    For contractors

    Top Level International

    Arlington, VA
    2 days ago
  •  ...the team responsible for the architecture and design for all mechanical, thermal, and EWIS elements of ground and flight avionics on the...  ...ownership of a small team of thermal, mechanical, and EWIS engineers, establish leads and sub-managers, and grow the team to support... 
    Full time
    Contract work
    Temporary work
    Part time
    Immediate start
    Worldwide

    Shield AI

    Washington DC
    3 days ago
  • HDR is a leading engineering, architecture, environmental and construction services firm. The Mechanical discipline leader will guide multi-discipline teams across complex buildings, driving technical excellence and strategic growth while mentoring professionals and coordinating... 

    HDR

    Arlington, VA
    1 day ago
  •  ...over 100 years, Globe Machine Manufacturing has delivered custom-engineered capital equipment for manufacturers in the pulp & paper,...  ...Engineering Manager leads the design and execution of Globe's mechanical equipment solutions while managing and developing a team of engineers... 

    Globe Machine Manufacturing

    Washington DC
    24 days ago
  •  ...Children's National Hospital seeks a Director of Biomedical Engineering to lead the Biomedical/Clinical Engineering Department in ensuring safe clinical operations, technology planning, and staff development. The role includes oversight of equipment maintenance, regulatory... 

    Jobleads-US

    Washington DC
    1 day ago
  •  ...information, visit  Follow Shield AI on LinkedIn, X, Instagram, and YouTube.  Shield AI is looking for a Director of Avionics Mechanical Engineering to build and lead the organization responsible for all mechanical, thermal, and harnessing (EWIS) design for the X-BAT... 
    Full time
    Contract work
    Temporary work
    Part time
    Worldwide
    Shift work

    Shield AI

    Washington DC
    8 days ago
  • $90k - $125k

     ...Control Systems Engineer Our team is growing and we are seeking a Control Systems Engineer to join our federal team supporting the...  ...efficiency and sustainability needs, primarily related to the HVAC Mechanical and HVAC Controls (Building Automation Systems). At Johnson... 
    Worldwide
    Monday to Friday

    Johnson Controls International Plc

    Arlington, VA
    5 days ago
  • $75k - $105k

     ...operator on the total building control system. Participates in the release meeting with project field team. Performs value engineering to provide cost effective results while maintaining customer satisfaction. May provide work directions to Systems Design Assistants... 
    Contract work
    For contractors
    For subcontractor
    H1b
    Remote work
    Visa sponsorship
    Work visa

    Johnson Controls

    Washington DC
    2 days ago
  • $70 - $95 per hour

     ...Simplifying the Complex. Simplexity is a product development engineering firm, hired by leading technology companies to design their next...  ...DESCRIPTION Simplexity is seeking a hands-on senior mechanical engineer to work embedded with our team at a Seattle-area client... 
    Hourly pay
    Contract work
    Temporary work
    For contractors

    Simplexity Product Development

    Washington DC
    a month ago
  • $105k - $150k

     ...Job Description Job Description ????️ Mechanical Engineer — Aerospace Robotics ???? Seattle / Shoreline, WA · On-site ???? Full-time · Direct Hire ???? $105,000 – $150,000 base + 401(k) match, full medical/dental/vision, PTO ???? Immediate search —... 
    Permanent employment
    Full time
    Immediate start

    Career Staffing Talent

    Washington DC
    a month ago
  • $200k - $280k

     ...GliaCell Technologies is seeking a Principal Software Engineer (AI - Assisted Developer Tooling) in Laurel, MD, onsite. The role focuses on AI-assisted IDE capabilities, automated code quality workflows, and integration of agentic systems to support software development... 

    Jobleads-US

    Laurel, MD
    4 days ago
  • $125k - $155k

     ...medical device manufacturer, is hiring an Equipment and Facilities Engineering Manager to lead engineering and maintenance at its Richland...  ...leadership. Requirements Bachelor's degree in mechanical, electrical, industrial, manufacturing, chemical engineering,... 
    For contractors
    Work at office

    Symmetrio

    Washington DC
    24 days ago
  •  ...hardware that must perform reliably in demanding operational conditions. Job Description: Shield AI is seeking a Manager, Mechanical Engineering to lead the mechanical hardware-test team supporting X-BAT. The team develops and sustains the test stands, fixtures,... 
    Full time
    Temporary work
    Part time
    Worldwide

    Shield AI

    Washington DC
    15 days ago
  •  ...THE WORK: Support delivery of Industrial and Automotive reinvention, with a focus on realizing complex large scale manufacturing engineering initiatives. This includes transformation of large brownfield plants, design of greenfield plants and preparing for new product launches... 
    Full time
    Work experience placement
    Live in
    Work at office
    Local area

    Accenture

    Arlington, VA
    2 days ago
  • $225k - $340k

     ...is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.PRINCIPAL CYBERSECURITY ENGINEER (STARSHIELD) At SpaceX we’re leveraging our experience in building rockets and spacecraft to deploy the Starshield constellation... 
    Permanent employment
    Temporary work
    Immediate start
    Weekend work

    SpaceX

    Washington DC
    1 day ago
  • $131.3k - $237.35k

     ...leadership for a mission-critical cybersecurity environment supporting the Department of War (DoW)?Leidos is seeking a Principal Cybersecurity Engineer to support the C5ISR Center Cyber Security Service Provider (CSSP), a premier defensive cyber operations organization... 
    Full time
    For contractors

    Leidos

    Hyattsville, MD
    3 days ago
  •  ...and citizen services. We’re a nonprofit engineering, applied research, and advanced...  ....MITRE is seeking a technically strong Principal Spectrum Engineer to provide technical...  ...propagation, link budgets, interference mechanisms, radar or communications systems, and system... 
    Work experience placement
    Internship
    Local area
    Remote work

    Mitre

    Silver Spring, MD
    2 days ago
  • $200.1k - $270.6k

    Application deadline: Sep 20, 2026A Principal Forward Deployed Engineer (Principal FDE) embeds across multiple strategic enterprise customers to define...  ...the reusable architectures, patterns, and engineering mechanisms that scale the entire FDE practice — combining the... 
    Internship
    Flexible hours

    AmazonWebServices

    Arlington, VA
    4 days ago
  • $74.3k - $174.3k

     ...Mechanical Manufacturing Engineer Apply now ( Location Baltimore/Washington D.C. Job Category Engineering Division Intralox Job Description (General Summary) Intralox has a position available for a Mechanical Manufacturing Engineer.  This position... 
    Work experience placement
    Worldwide
    Flexible hours

    Intralox

    Washington DC
    1 day ago
  •  ...efficient, sustainable, and cost-effective. Through innovative HVAC engineering, electrical upgrades, building automation systems,...  ...About the Position Our client is seeking an experienced Senior Mechanical Engineer to lead the design and engineering of complex HVAC systems... 
    For contractors

    Kimmel and Associates

    Washington DC
    3 days ago
  •  ...Job Description Job Description Industrial Mechanical Engineer Precision Industrial Contractors, Inc. is seeking a FT Mechanical Engineer for immediate hire. At PIC, we are committed to developing lasting relationships with our customers through ensuring our... 
    Contract work
    For contractors
    Work experience placement
    Work at office
    Immediate start

    Precision Industrial Contractors

    Washington DC
    more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Mechanical Engineer. Be the first to apply!