Senior Mechanical Test Engineer (II/III) - On-Site
X-Energy, LLC
X-Energy, LLC is seeking a Test Engineer to oversee testing activities for advanced reactor technologies. This role involves planning, developing, and executing test programs while coordinating with engineers to ensure all requirements are met. Ideal candidates will have a Bachelor's degree in engineering, relevant experience, and hands-on testing skills. The position is based in Rockville, Maryland with a hybrid schedule of 4 days in the office. Competitive compensation and benefits include a 401(k) plan, medical insurance, and paid time off. #J-18808-Ljbffr X-Energy, LLC
Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Senior Mechanical Test Engineer (II/III) - On-Site in Rockville, MD vacancy
$76.09k - $126.82k
..., and execution of test activities for advanced... ...with system engineers to identify required... ...Bachelor’s degree in mechanical, electrical, or nuclear... ...field. Level II: Typically two years... ...engineering role. Level III: Typically five... ...to travel to vendor sites regularly. Location...WebsiteWork at office$100k - $144k
...development, and execution of test activities for the advanced... ...will coordinate with system engineers to identify required testing,... ...Qualifications Bachelor’s degree in mechanical, electrical, or nuclear... ...Engineering. Travel to vendor sites on a regular basis may be...WebsiteFull timeWork at officeRemote work$100k - $144k
Alumni Ventures in Rockville, Maryland, is seeking a Test Engineer to plan and execute test activities for advanced reactor technologies. The role involves coordinating with engineers, overseeing hardware lifecycle, and maintaining communication of results. Qualified candidates...Suggested$100k - $153k
...and most ambitious space missions. SENIOR MECHANICAL ENGINEER SENIOR I/II As a Mechanical Engineer at Rocket... ...custom SOWs ~Support travel or off-site work to suppliers, customers, and other... ..., environments, verification tests and requirements ~Experience managing...SeniorWebsitePermanent employmentLocal areaFlexible hours$100k - $153k
...and most ambitious space missions. SENIOR MECHANICAL ENGINEER SENIOR I/II As a Mechanical Engineer at... ...custom SOWs Support travel or off-site work to suppliers, customers, and other... ...standards, environments, verification tests and requirements ~ Experience...SeniorWebsitePermanent employmentLocal areaFlexible hours$149.1k - $248.5k
...energy LLC is hiring a Senior Pressure Vessels/Tanks Engineer to join its team.... ...designing and developing mechanical systems and... ...(especially Section III and VIII), API 650/6... ...provisions, operation, testing, and general industry... ...or Houston, TXWork Site Expectations: 4-5 days...SeniorWebsiteContract workWork at office$125k - $155k
...Who We’re Looking For We are seeking a Mechanical Engineer III to lead the design and development of electric... ...closely with propulsion, systems, and test teams. Where You’ll Make an Impact... ...capability Ability to work on‑site in the LA area Nice‑to‑Have Experience...WebsitePermanent employment$115k - $140k
Job Title: Senior Mechanical Engineer II Location: Gaithersburg, MD (Onsite) Hours/Schedule: Monday - Friday, Standard Business Hours Compensation... ...FEA, and root cause investigations Support prototyping, testing, and design verification activities Design sterile single...SeniorMonday to Friday- System One is looking for a Senior Mechanical Engineer II in Gaithersburg, MD. This hands-on role supports the design and development of mechanical systems in GMP manufacturing. Candidates should have extensive experience in mechanical design, particularly in regulated...Senior
$115.6k - $176.3k
Senior Scientist II - Cell Line Development Job Category : Development Requisition Number : SENIO... ...Posted : March 26, 2026 Full-Time On-site Locations Showing 1 location Rockville... ...and Working Cell Bank production and testing, and will support mammalian cell culture...SeniorWebsiteFull timeLocal areaWeekend work$79.5k - $132.5k
...professionals to join our Mechanical Engineering team in the role of... ...prototyping, testing, and commissioning. Job... ...Vessel Code (BPVC) Section III and/or Section VIII.... ...Qualifications Level II Level Tasks/Responsibilities... ..., Rockville MD Work Site Expectations 4‑5 days...WebsiteFull timeInternshipWork at officeMonday to Friday$95k - $120k
...-Energy is seeking a test hardware design engineer to join our nuclear auxiliary... ..., and testing mechanical systems, assemblies,... ...Code (BPVC) Section III and/or Section VIII.... ...Qualifications Level II Level Tasks/Responsibilities... ..., Rockville MD Work Site Expectations 4 days...WebsiteFull timeInternshipWork at office- RWD Consulting, LLC is seeking a Clinical Training Specialist - Level II in Bethesda, MD. This on-site position involves developing health IT training programs and assessing training needs using various instructional methods. The ideal candidate will have a Bachelor's...SeniorWebsite
- ...s degree and relevant certifications are required, alongside a minimum of 6 years of progressive experience. This position offers a full-time, on-site opportunity with competitive benefits and a commitment to your professional growth. #J-18808-Ljbffr Systems Plus, Inc.SeniorWebsiteFull timeFor contractors
$77.7k - $129.5k
HVAC Mechanical Design Engineer X-energy LLC is hiring an HVAC Mechanical Design Engineer to support a Plant and Process Design team. The role includes... ...Expectations Location: 530Gaither Road, Rockville,MD. Work site: 4days onsite per week. Travel: up to 10% as needed. Hours:...WebsiteMonday to Friday$97.76k - $137.53k
...greater impact together. What You'll do We are seeking a Senior Performance Test Engineer with Appian experience to support performance testing efforts... ...clearance) This is a hybrid position and will require on‑site presence at our Groundswell HQ in McLean or other client...SeniorWebsiteContract workLocal areaImmediate startFlexible hours$125.4k - $198.2k
...LLC is hiring a Plant & Process Design Engineer to support its Reactors team. This role... ...responsible for designing and developing mechanical systems and components. It includes identifying... ...: 530 Gaither Road, Rockville, MD Work Site Expectations: 4 days onsite Travel...WebsiteFull timeContract workFor subcontractorWork at office$125k - $200k
...-duration spacecraft. We are seeking a Lead Spacecraft Mechanical Engineer to own the design, integration, and verification of all... ...spacecraft designs, from initial development through on-site spacecraft build, test, and flight operations. Prepare, review, and manage...SeniorWebsitePermanent employmentFull time- M.C. Dean is seeking a Mechanical Engineer to join their Critical Infrastructure solutions team in McLean, Virginia. This role requires the design... ...mechanical systems, including HVAC and plumbing, performing site surveys, and providing engineering support during...SeniorWebsite
- ...food scarcity and global health. Job Description The Mechanical Engineer focuses on the design and engineering of HVAC and mechanical... ...under the supervision of the Mechanical Engineer IV include site selection, master planning, commissioning and startup, load calculations...SeniorWebsiteFor subcontractor
CRB
Rockville, MD3 days ago $50k - $63k
...Associate track (Research Associate I, II, III). Candidates are encouraged to apply at... ...blood cell production for transfusion; engineering animal‑derived blood products; and developing... ...with Principal Investigator, other site personnel, and The Geneva Foundation personnel...WebsiteTemporary workWork experience placementInterim roleWork at officeFlexible hours$145k - $165k
Job Summary The Senior Mechanical Engineer will provide engineering design, evaluation, and planning of mechanical systems. The candidate will have... ...building surveys and document existing HVAC systems and site conditions. Develop system design calculations and selection...SeniorWebsiteFor contractorsFor subcontractorLocal areaRemote work$90k - $150k
Join Affiliated Engineers, Inc. as a Mechanical Engineer II in Rockville, Maryland, where you’ll develop energy-efficient building solutions and design HVAC systems for technically sophisticated facilities. With a strong focus on collaboration and innovation, you’ll benefit...Flexible hours- ## Senior Reliability/Test EngineerApplylocations: Germantown, MD USAtime type: Full timeposted on:... ...Summary:**The Senior Test / Reliability Engineer will be responsible for developing... ...of the time to contract manufacturing sites.If you have what it takes to push boundaries...SeniorWebsiteContract workWork from home
$80.9k - $92.3k
...Senior Administrative Assistant Capital One is seeking an exceptionally bright, self-motivated... ...Administrative Support Assistant III. This pivotal role supports multiple executives... ...other information available through this site. Capital One Financial is made up of...SeniorWebsiteFull timePart timeWork at officeLocal areaImmediate start$145k - $195k
Quantum Space, LLC is looking for a Senior Mechanical Engineer III to lead flight hardware development within Spacecraft Programs. The ideal candidate will manage mechanical components from requirements through design to integration while closely collaborating with manufacturing...Senior- ...engaging with interested candidates in advance. Senior Mechanical Engineer (MEP) Work Location: Rockville, MD 20852... ...failures, performance issues, or non-compliance. Perform site inspections, testing, and data collection; review drawings, specifications,...SeniorWebsiteFull timeTemporary workLocal areaFlexible hours
- ...Description Job Description Senior UI/UX Designer II Employment Type: Full-... ...implementation of multiple sites and applications across... ...Collaborate with federal practice engineers and federal clients to... ..., requirements, coding, testing, and user testing and evaluation...SeniorWebsiteFull timeWork at officeFlexible hours
- ID.me is looking for a Staff Software Development Engineer to lead a team in McLean, VA. You will innovate and modernize AI-driven internal... ...and expertise in LLMs and agent workflows. This role demands on-site presence and involves mentoring engineers while overseeing best...SeniorWebsite
$113k - $151k
# Senior Mechanical Utilities EngineerSamsung BiologicsFull TimeseniorRockville, Maryland, US$113k - $151kPosted Yesterday## Role OverviewSamsung Biologics is hiring a Senior Mechanical Utilities Engineer. This is a full-time role in Rockville. posted yesterday. The posted...SeniorWebsiteFull timeFor contractors
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Mechanical Test Engineer (II/III) - On-Site. Be the first to apply!
Related searches
- test engineer Rockville, MD
- lead performance test engineer Rockville, MD
- senior data management analyst Rockville, MD
- senior app developer Rockville, MD
- senior compensation manager Rockville, MD
- senior accounts receivable Rockville, MD
- senior vice president of operations Rockville, MD
- sr industrial engineer Rockville, MD
- senior manager creative operations Rockville, MD
- senior storage engineer Rockville, MD