X-energy

HQ
Rockville
Total Offices: 3
598 Total Employees
Year Founded: 2009

Jobs at X-energy

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Recently posted jobs

2 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Leads project planning and scheduling processes within project controls, overseeing schedule development, monitoring, variance analysis, forecasting, and reporting. Provides technical direction, coordinates resources, establishes best practices, supports proposals and project initiation, facilitates communication across teams, and delivers scheduling training. The role strengthens project controls practices across complex programs and projects.
10 Days AgoSaved
In-Office
Gaither, MD, USA
Greentech • Energy
Oversee customer relationship management, develop business strategies, track communications, and maintain industry awareness while coordinating customer engagement activities.
13 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Leads the supply chain digital transformation roadmap, including ERP and planning-system implementations, integrations, upgrades, automation, analytics, dashboards, and data migrations. Partners with supply chain, procurement, engineering, IT, finance, and audit teams to translate business needs into technical solutions, improve operational visibility, ensure system controls, and drive user adoption through workshops, training, documentation, and change-management initiatives.
17 Days AgoSaved
In-Office
Oak Ridge, TN, USA
Greentech • Energy
Supports engineering projects and analyses related to TRISO-X fuel fabrication. Assists with departmental operations, research, project documentation, reports, meetings, and process-improvement initiatives under guided supervision. Candidates must be pursuing or recently completed a bachelor’s degree in engineering or a related field and have knowledge of CAD, P&IDs, or industrial equipment design and operations. The internship is fully on-site in Oak Ridge, Tennessee, for 10 weeks during Summer 2027.
18 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Supports systems engineering lifecycle activities including stakeholder and operational analysis, requirements management, functional decomposition, architecture modeling, interface management, integration, verification, and validation. Develops system behavior models using MBSE and PLM tools, assists with technical risk and value engineering, prepares documentation, conducts research, and supports cross-disciplinary engineering teams within quality and configuration management processes.
21 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Manages complex sourcing initiatives, category plans, supplier relationships, contracts, procurement schedules, and supplier performance. Develops negotiation and risk-mitigation strategies, resolves systemic supplier issues, analyzes category spend and operational data, and drives supply chain process improvements. The role also supports special projects, supplier alliance programs, emergency response activities, and provides guidance to procurement and sourcing personnel. This position is based primarily in the office with travel of up to 10%.
21 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Manages a mechanical engineering team supporting advanced reactor projects. Oversees mechanical design, analysis, resource allocation, technical decisions, design reviews, configuration control, manufacturing coordination, and staff development. Leads engineering work across project lifecycles while ensuring quality, schedule, budget, documentation, and compliance with design control procedures.
29 Days AgoSaved
In-Office
Oak Ridge, TN, USA
Greentech • Energy
Supports engineering and reactor design projects through research, technical documentation, project-file organization, schedule updates, progress tracking, and schedule-impact analysis. The intern assists with risk, issue, and change management while participating in meetings and design reviews. Candidates should be pursuing or recently completed a bachelor's degree in business, project management, engineering, or a related field, with knowledge of project planning, scheduling, and risk management.
29 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Supports engineering projects related to reactor design and licensing through hardware testing, experimentation, test planning, technical research, data analysis, documentation, reporting, and project coordination. The intern collaborates with engineers and scientists under guided supervision, participates in design reviews and team meetings, and maintains technical records. The role is a fully on-site, 10-week Summer 2027 internship for students or recent graduates in mechanical, electrical, nuclear, or related engineering fields.
29 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Supports corporate development and senior leadership with strategic finance, corporate strategy, financial analysis, capital formation, M&A, partnerships, financial modeling, and executive presentations. The intern analyzes project performance, identifies optimization opportunities, develops business cases, and collaborates on strategic initiatives. This is a fully onsite, 10-week summer program in Gaithersburg, Maryland.
29 Days AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Supports engineering projects related to reactor design and licensing through technical research, data analysis, documentation, reporting, and project coordination. The intern may contribute to mechanical design, thermodynamics, structural analysis, thermal hydraulics, or process equipment activities under guided supervision. Responsibilities include maintaining technical records, participating in design reviews, and collaborating with engineers and scientists. The role is a fully onsite, 10-week Summer 2027 program in Gaithersburg, Maryland.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Provides project controls support across planning and scheduling, cost management, estimating, and change management. Maintains project schedules, budgets, forecasts, risk registers, performance dashboards, and KPIs. Reports project status and metrics to leadership, supports risk mitigation, conducts quantity surveys, and may lead estimate deliverables or review work products depending on level. The role requires an engineering degree and experience with project management, estimating, scheduling, cost management, or related disciplines.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Designs and develops mechanical systems, structures, and components for nuclear products and facilities, including heat exchangers, pressure vessels, piping, reactor internals, and high-temperature materials. Performs structural, thermal, hydraulic, and sizing calculations; creates CAD models; supports prototyping, testing, manufacturing, and commissioning; develops technical documentation and V&V plans; ensures compliance with codes, standards, quality procedures, and design requirements; and mentors junior engineers.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
The Test Hardware Design Engineer designs, tests, and integrates mechanical systems for nuclear prototypes, ensuring performance and safety through detailed engineering analysis and project collaboration.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Manages engineers designing and integrating reactor internals for the XE-100 advanced nuclear reactor. Provides design authority, directs mechanical design and analysis, coordinates multidisciplinary teams, suppliers, manufacturing, construction, and licensing efforts, and ensures compliance with design controls, documentation, schedules, budgets, and quality standards. The role also supports technical decisions, resource allocation, staff development, design reviews, and configuration management.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Provides project controls support across risk management, scheduling, budgeting, estimating, and change management. Maintains project schedules, budgets, forecasts, risk registers, performance dashboards, metrics, and KPIs. Supports project leadership with progress tracking, cost reporting, financial analysis, risk mitigation, and status reporting. May perform quantity surveys using on-screen takeoff tools and works under guided supervision.
One Month AgoSaved
In-Office
Oak Ridge, TN, USA
Greentech • Energy
Develop and execute supply chain strategies for advanced nuclear fuel and reactor programs. Identify, qualify, and manage equipment and service suppliers; create category and project execution plans; analyze spend, risk, market conditions, costs, and schedules; negotiate supplier contracts and strategic agreements; review technical and quality requirements; coordinate supplier QA qualification; monitor supplier performance; manage delivery schedules; and provide commercial and contracting guidance across business units.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Provides project quality assurance for X-energy’s reactor development programs. Establishes and maintains quality management processes, analyzes nonconformances, implements corrective actions, supports inspections and supplier audits, delivers quality training, and reports program risks. Owns project quality plans and serves as the quality point of contact. Ensures compliance with nuclear, DOE, Canadian, international, and ISO requirements while promoting safety and quality culture. The role requires domestic and international travel to supplier and customer sites.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Designs and analyzes mechanical structures, systems, and components for terrestrial and space-based advanced nuclear reactors. Responsibilities include CAD modeling, structural hand calculations, FEA support, design for manufacturability, prototype testing, and cross-disciplinary coordination. The engineer maintains configuration-controlled models in Teamcenter, develops analysis plans, and supports integration of reactor components such as pressure vessels, heat exchangers, core structures, and transportation packages.
One Month AgoSaved
In-Office
Rockville, MD, USA
Greentech • Energy
Implement supply chain processes and act as primary liaison with suppliers and stakeholders. Develop strategic and project-specific procurement plans, perform category spend and risk analysis, negotiate and manage contracts, ensure technical and QA requirements, monitor supplier performance, and support business development to meet schedule and cost objectives.