• Network Engineer

    Washington, DC

    Network Engineer Location: Washington, DC 20530 Type: Contract Compensation: $60.25 - $70.00 hourly Contractor Work Model: Onsite 5 days a week Candidates must be able to work without sponsorship and be able to obtain a Public Trust clearance. System O...

    Date Posted: 03/06/2026

  • Field Sales Representative / Outside Sales Representative

    Seattle, Washington

    Job Title: Field Sales Representative / Outside Sales Representative Location: Seattle, Washington Type: Direct Hire For immediate consideration, please connect with me on LinkedIn at https://www.linkedin.com/in/dpotapenko and then email your resume, w...

    Date Posted: 03/06/2026

  • Plant Design Integration Engineer

    Bellevue, WA

    Job Title: Plant Design Integration Engineer Type: Contract (yearlong) typically extends on a yearly basis Compensation: $56 - $95 hourly Contractor Work Model: Fully Remote Paid Holidays | PTO System One is seeking to contract with a Plant Integration...

    Date Posted: 03/06/2026

  • System Design Engineer, Sodium Cover Gas System

    Bellevue, WA

    Job Title: System Design Engineer, Sodium Cover Gas System Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $52.00 - $85.00 hourly Contractor Work Model: Fully Remote (US based) Paid Holidays | PTO Syst...

    Date Posted: 03/06/2026

  • Senior Safety Methods Engineer

    Bellevue, WA

    Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $69 - $115 hourly Contractor Work Model: Fully Remote Paid holidays and PTO System One is seeking a Senior Safe...

    Date Posted: 03/06/2026

  • Senior Nuclear Safety Analysis Engineer

    Bellevue, WA

    Job Title: Senior Nuclear Safety Analysis Engineer Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $69-$115 hourly Contractor Work Model: Fully Remote Paid Holidays | PTO System One is seeking to contr...

    Date Posted: 03/06/2026

  • HVAC Engineer

    Richland , Washington

    Job Title: HVAC Engineer Location: Richland , Washington Type: Direct Hire Compensation: $126,000 - $171,000 annually Contractor Work Model: Onsite System One is hiring HVAC Engineers for direct, full-time roles supporting engineering projects across t...

    Date Posted: 03/06/2026

  • OSP Construction Inspector

    Kennewick, WA

    Mountain Ltd. has an opening for an OSP Inspector in the Kennewick, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. We are ...

    Date Posted: 03/05/2026

  • CNC Machinist

    Richland, WA

    System one is looking for a CNC machinist to join our team at Framatome in Richland (contract to hire) Job Description Primary responsibilities include, but are not limited to: Interpret design drawings, solid models, and specifications to fabricate hi...

    Date Posted: 03/05/2026

  • Sr. Information Systems Specialist- Help Desk Support

    Washington, DC

    Information Systems Specialist- Help Desk Support 1st Shift (Wednesday – Sunday, 7:00pm to 3:30pm) 100% ONSITE in Washington DC Per Federal contract U.S. Citizenship or green card Required Must be able to pass enhanced background screen (criminal, fina...

    Date Posted: 03/05/2026

  • Sr. MS Exchange Systems Engineer

    Washington, DC

    Sr MS Exchange Systems Engineer 100% ONSITE in Washington DC Per Federal contract U.S. Citizenship or green card Required Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance Performance Period: 04/26 –...

    Date Posted: 03/05/2026

  • Construction Oversight Engineer

    Bellevue, WA

    Job Title: Construction Oversight Engineer Type: Long-term Contract Contractor Work Model: Remote Responsibilities Develop procedures for regulatory oversight of the construction of advanced reactor unit(s) Provide inspection oversight of the construct...

    Date Posted: 03/05/2026

  • Maintenance Planner

    Richland, Washington

    Overview System One is seeking a Maintenance Planner / Scheduler to support operations within an industrial manufacturing environment. This role is responsible for planning, scheduling, and coordinating proactive maintenance activities to ensure safe, ...

    Date Posted: 03/04/2026

  • FinOps Consultant (Cloud Financial Operations)

    Washington, DC

    FinOps Consultant (Cloud Financial Operations) 100% ONSITE in Washington DC 20006 Per Federal contract U.S. Citizenship Required Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance W-2 or C2C Applicati...

    Date Posted: 03/04/2026

  • Senior IT DevSecOps Engineer

    Washington, DC

    Senior IT DevSecOps Engineer Washington, DC – FULLY ONSITE Type: Multi-year Contract Open to W2 and C2C US citizenship required per government contract Must be able to obtain Public Trust clearance Candidate will help build GitLab-based DevSecOps autom...

    Date Posted: 03/03/2026

  • Alkali Metal Test Engineer

    Everette, Washington

    Position Overview System One is seeking a highly motivated Test Engineer – Alkali Metal Testing to support advanced reactor testing operations for a leading clean energy client. This on-site role in Everett, WA will support engineering and full-scale l...

    Date Posted: 03/03/2026

  • Sr. Coupa Functional Analyst

    Washington, DC

    Senior Coupa Functional Analyst Washington DC 20006 Per Federal contract U.S. Citizenship or green card Required Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance W-2 or C2C PROJECT DESCRIPTION: Coup...

    Date Posted: 03/03/2026

  • Senior Contract Administrator

    Bellevue, WA

    Job Title: Senior Contract Administrator Type: Long-term Contract Contractor Work Model: Remote Responsibilities Support increasingly complex procurement and subcontract management duties, including federal government contracting. Manage procurement ac...

    Date Posted: 03/02/2026

  • Senior Safety Verification and Validation Engineer

    Bellevue, Washington

    Job Title: Senior Safety Verification and Validation Engineer Type: Contract (12-months) Contractor Work Model: Remote About the Role: As a Senior Safety V&V Engineer, you will be instrumental in verifying and validating safety assessment models and so...

    Date Posted: 03/02/2026

  • OSP Construction Inspector

    Wenatchee, WA

    Mountain Ltd. has an opening for an OSP Inspector in the Wenatchee, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. We are ...

    Date Posted: 03/02/2026

  • OSP Inspector

    Yakima, WA

    Mountain Ltd. has an opening for an OSP Inspector in the Yakima, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. We are a n...

    Date Posted: 03/02/2026

  • Quality Inspector/Technician

    Richland, Washington

    Machinist-Quality Technician Location: Richland, Washington Contract 6-12 months with possible extension. Employment Type: Full-Time, Non-Exempt (40 hours/week) Pay rate:$28-$34 an hour Overview: System One is seeking a qualified Quality Technician to ...

    Date Posted: 02/27/2026

  • Coordinator/Specialist Support

    Everett, WA

    Mountain Ltd. has an opening for a Coordinator/Specialist Support in the Everett, WA area. Mountain Ltd is a telecommunications service provider that has been in the industry for nearly 40 years. We are a proven leader in engineering solutions and recr...

    Date Posted: 02/24/2026

  • OSP Engineer

    Edmonds, WA

    Mountain Ltd. has an opening for an OSP Engineer, working in the Edmonds, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. W...

    Date Posted: 02/24/2026

  • OSP Engineer

    Everett, WA

    Mountain Ltd. has an opening for an OSP Engineer, working in the Everett, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. W...

    Date Posted: 02/24/2026

  • OSP Engineer

    Mount Vernon, WA

    Mountain Ltd. has an opening for an OSP Engineer, working in the Mount Vernon, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United Stat...

    Date Posted: 02/24/2026

  • OSP Fielder II

    Burlington, WA

    Mountain Ltd. has an opening for an OSP Fielder II in the Burlington, WA area. Since 1979, Mountain Ltd. has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. We ar...

    Date Posted: 02/24/2026

  • Fuel Fabrication Chemical Analysis Technician

    Everett, WA

    Job Title: Fuel Fabrication Chemical Analysis Technician Location: Everett, WA Type: Contract Contractor Work Model: Onsite Responsibilities Perform a wide range of laboratory-based research, chemical analysis, and development activities to support fue...

    Date Posted: 02/24/2026

  • I&C Design Engineer Lead

    Bellevue, WA

    System One is seeking an experienced Instrumentation & Controls (I&C) Design Engineer to support advanced nuclear reactor development. This contract position supports system design, prototype development and testing, plant-level system integration, and...

    Date Posted: 02/23/2026

  • NESC Inspector

    Wenatchee, WA

    Mountain Ltd. has an opening for a NESC Inspector in the Wenatchee, WA area. Since 1979, Mountain Ltd has successfully created and supported turnkey engineering solutions for traditional and wireless telecom providers across the United States. We are a...

    Date Posted: 02/23/2026