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Entry Level Mechanical Engineer Startup Jobs in Oregon

... startup, commissioning, and troubleshooting * Travel to project sites on short notice when needed ... Bachelor's degree in Mechanical Engineering or a related field * Solid understanding of ...

Work with other Engineers and Project Managers to ensure multiple pieces of equipment fits and ... Travel to customer site to assist with equipment startup * Assist other departments as required and ...

Mechanical Engineer

Newberg, OR · On-site

$66K - $86K/yr

Work with other Engineers and Project Managers to ensure multiple pieces of equipment fits and ... Travel to customer site to assist with equipment startup * Assist other departments as required and ...

Join our engineering team and work on unique, custom-engineered projects from concept through startup. Collaborate with mechanical engineers, project managers, manufacturing personnel, and customers ...

Join our engineering team and work on unique, custom-engineered projects from concept through startup. Collaborate with mechanical engineers, project managers, manufacturing personnel, and customers ...

Commissioning Engineer

Portland, OR · On-site

$70 - $80/hr

... Mechanical Engineering, Electrical Engineering, or a related engineering discipline * Experience supporting commissioning, startup, operational readiness, or project delivery for water, wastewater ...

Controls Engineer I

Klamath Falls, OR

$83K - $107K/yr

Bachelor's degree in electrical, manufacturing, mechatronics or mechanical engineering, or ... Senior project or internship experience in project design, installation, and startup preferred.

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Entry Level Mechanical Engineer Startup information

What is the difference between Entry Level Mechanical Engineer Startup vs Entry Level Mechanical Engineer Corporate?

AspectEntry Level Mechanical Engineer StartupEntry Level Mechanical Engineer Corporate
Work EnvironmentFast-paced, dynamic, smaller teamsStructured, larger teams, established processes
ResponsibilitiesBroader scope, hands-on tasks, varied projectsSpecialized tasks, defined roles, routine projects
Workplace CultureFlexible, entrepreneurial, innovativeFormal, process-driven, hierarchical
Required CredentialsBachelor's in Mechanical Engineering, internship experienceBachelor's in Mechanical Engineering, internship experience

In summary, Entry Level Mechanical Engineer Startup roles typically involve a more versatile and fast-paced environment with broader responsibilities, while corporate roles offer structured processes and specialized tasks. Both require similar educational backgrounds and internships, but the work culture and scope differ significantly.

What job categories do people searching Entry Level Mechanical Engineer Startup jobs in Oregon look for? The top searched job categories for Entry Level Mechanical Engineer Startup jobs in Oregon are:
Infographic showing various Entry Level Mechanical Engineer Startup job openings in Oregon as of July 2026, with employment types broken down into 100% Full Time. Highlights an 50% In-person, and 50% Remote job distribution.

Mechanical Engineer

Polygon US

Beaverton, OR • On-site

$95K/yr

Full-time

Posted 20 days ago


Job description

Role Summary:
$90-95k annually
Under the direction of the Engineering & Estimating Manager -National, the Mechanical Engineer is responsible for supporting the Engineering and Estimating team across the full project lifecycle, including load calculations, system design, bidding support, client presentations, field deployment, and post-project documentation. This is an engineering-track role with exposure to a wide variety of industries and applications. The day-to-day work is office-based, with travel for site visits, client meetings, and emergency response.
Essential Job Functions:
  • Perform load calculations - cooling, heating, moisture, and ventilation - for temporary climate solutions across construction sites, industrial and manufacturing facilities, food production plants, automotive and battery plants, aerospace facilities, data centers, commercial buildings, and labs
  • Perform psychrometric chart analyses and study weather to inform design decisions
  • Design temporary systems from Polygon's equipment fleet
  • Develop project layouts, equipment schedules, and sequences of operation tailored to each client's environment and process needs
  • Support the estimating process: take-offs, equipment selection, scope development, and pricing inputs for bids and proposals
  • Prepare and present engineered solutions to clients, general contractors, and internal sales teams
  • Translate technical decisions into clear, client-friendly language
  • Serve as the engineering resource for the field technician team during equipment deployment, startup, commissioning, and troubleshooting
  • Travel to project sites on short notice when needed - for emergency response, project kickoffs, complex deployments, or field issues that require engineering oversight
  • Translate field observations into improvements to design and project execution
  • Develop and maintain Standard Operating Procedures (SOPs) for specific systems, applications, and key clients
  • Create technical documentation, including system narratives, commissioning checklists, monitoring plans, and project closeout packages
  • Build out engineering templates and reference materials to improve consistency and efficiency across the team

Job Qualifications:
  • Bachelor's degree in Mechanical Engineering or a related field
  • Solid understanding of thermodynamics, heat transfer, and HVAC fundamentals
  • Comfortable with psychrometric calculations
  • Strong written and verbal communication skills, with the ability to explain technical concepts to engineers, salespeople, technicians, and clients
  • MS Office proficiency across the board, with Excel as a particular strength
  • Demonstrated CAD experience
  • Willingness to travel on short notice, including occasional nights and weekends for emergency response
  • Valid US driver's license and the ability to work on construction and industrial job sites

Preferred Training Requirements and Competencies:
  • EIT certification
  • 1-3 years of experience in HVAC, mechanical contracting, temporary climate solutions, dehumidification, or a related field
  • Exposure to construction sites, manufacturing facilities, food production, automotive or battery plants, aerospace, data centers, or controlled environments such as labs, cleanrooms, and pharmaceutical facilities
  • Familiarity with building codes, OSHA site safety, and standard PPE requirements
  • Experience supporting estimating, sales, or field service teams

Demonstration of the Polygon Values:
  • Integrity
  • Excellence
  • Empathy