Full Stack Developer
Xcel Engineering
Job Description
Job Description
COMPANY OVERVIEWXCEL Engineering, Inc. is an award-winning small business that provides trusted information technology, engineering, consulting and project management solutions and services to federal agencies and organizations. Originally founded in 1971 by professional engineers at the University of Tennessee, XCEL was acquired in 2003 by U.S. Army and Navy veterans and in 2023 became a MartinFed company. XCEL Engineering is a part of IT Lab Partners (ITLP) which was created to support Oak Ridge National Laboratory (ORNL) in recruiting the best and the brightest technical talent to East Tennessee region. ORNL delivers scientific discoveries and technical breakthroughs needed to realize energy and national security solutions and provides economic benefit to the nation. This premier research institution near Knoxville in Oak Ridge, TN, addresses national needs through impactful research and world-leading research centers.Considering joining our impressive team supporting ORNL today! JOB OVERVIEWXCEL Engineering is seeking a versatile Full Stack Software Engineer to support multiple concurrent software projects within a Department of Energy (DOE) Research & Development environment. This role requires an on-site presence and close collaboration with technical teams, stakeholders, and government clients. The ideal candidate is comfortable working across the entire development lifecycle from gathering client requirements and translating concepts into technical designs, through development, testing, deployment, and long-term support. Candidates must be adaptable, detail-oriented, and capable of managing multiple priorities in a structured, security-focused environment.ESSENTIAL FUNCTIONSCollaborate with government clients and internal stakeholders to gather, analyze, and refine technical and functional requirements.Design, architect, and develop full-stack applications from concept to completion.Work on multiple simultaneous projects with varying timelines and technical scopes.Develop scalable backend services and APIs.Build responsive, user-friendly front-end interfaces aligned with UI/UX best practices.Participate in code reviews, testing, debugging, and performance optimization.Maintain documentation for system architecture, code, and processes.Ensure compliance with security, privacy, and operational standards required in a federal R&D environment.Provide ongoing maintenance, enhancements, and technical support for deployed applications.BASIC QUALIFICATIONSBachelor 's degree in a scientific field or equivalent combination of education and experience coupled with 8 years of software development experience.Bachelors degree in Computer Science, Software Engineering, or related field (or equivalent practical experience).3+ years of professional full-stack development experienceJavaScript, TypeScript, Python, SQLBackend Frameworks-Fast APIFrontend FrameworksVue.js 2 & Vue.js 3State Management-PiniaUI Libraries-VuetifyDatabases-PostgreSQLOther Technologies- GraphQLDemonstrated experience delivering production-ready applications end-to-end.Strong communication skills and ability to translate business needs into technical solutions.Ability to obtain and maintain any required facility clearances or background checks.Work Environment On-site presence is required due to the secure nature of the facility.Collaborative, mission-driven R&D atmosphere.Opportunity to contribute to projects with national-level impact and long-term technical value.DESIRED QUALIFICATIONSJava development experienceExperience working in government, national laboratory, or regulated environmentsFamiliarity with CI/CD pipelines and DevOps practicesContainerization technologies (Docker, Kubernetes)Experience with automated testing frameworksPHYSICAL REQUIREMENTS & ENVIRONMENTAL CONDITIONS Inside office environment.Working on a computer for long periods of time.May involve long period of sitting at a desk.The work environment is fast-paced and sometimes involves extreme deadline pressures.OTHER DUTIES This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.Xcel Engineering is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, religious creed, gender, sexual orientation, gender identity, gender expression, transgender, pregnancy, marital status, national origin, ancestry, citizenship status, age, disability, protected Veteran Status, genetics or any other characteristics protected by applicable federal, state or local law. If you are a qualified individual with a disability or disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Xcel Engineering's current openings as a result of your disability. You can request reasonable accommodations by calling View phone number on us.fitly.work. Thank you for your interest in Xcel Engineering. All positions at Xcel Engineering, Inc. are contingent upon passing both a background check and drug screening prior to a start date and are subject to random drug screenings during the employment period. In addition, Xcel Engineering is an E-Verify employer.
Job Posted by ApplicantPro- ...ORNL today! Job Overview XCEL Engineering is seeking a versatile Full Stack Software Engineer to support multiple concurrent software... ...technical and functional requirements. Design, architect, and develop full‑stack applications from concept to completion. Work on multiple...SuggestedWork at officeLocal area
- ...Requisition Id 16906 Overview: The Atmospheric Radiation Measurement Program’s Data Center is seeking a Full Stack Developer who will focus on internal tools related to ARM triennial deliverables for a one-year term. This position resides in the Earth Science...SuggestedTemporary workWork at officeRelocation packageFlexible hours
- ...of Energy facility in Oak Ridge, Tennessee. Must be eligible for a federal security clearance (US Citizen) Job Title: Full Stack Developer Project: American Science Cloud / Genesis Project Experience Level: Mid-Level (5+ Years) Position Overview We are...Suggested
- ...A technology solutions provider in Oak Ridge, TN, seeks a Full Stack Software Engineer to support various software projects within a DOE Research & Development environment. Candidates should have a Bachelor's degree in a scientific field, 8 years of software development...Suggested
- ...Major Duties and Responsibilities:Support modernization efforts by developing EPICS applications to support embedded and FPGA based systems.... ...community, commit to ORNL’s Research Code of Conduct. The full code of conduct and a statement from the Lab Director’s office...SuggestedWork at officeRelocation packageFlexible hours
- ...infrastructure. Key Responsibilities Architect & Build: Design and develop scalable software solutions leveraging core AWS services (EC... ..., ensuring high availability and environmental parity. Full-Stack Development: Write clean, maintainable, and efficient code in...
- Requisition Id 16879 Level: TP03Overview: We are seeking a Software systems engineer to create state of the art software technologies for use in a wide variety of engineering disciplines, ranging from quantum computers used to advance the state of the art in scientific ...Work at officeRelocation packageFlexible hours
- ...equipment across multidisciplinary engineering teams. Responsibilities Develop and support electrochemical process concepts, cell designs,... ...)Paid Time Off (Vacation, & Public Holidays)Short Term & Long Term DisabilityJob SummaryID: 52AFBDA153Department: OkloType: full timeFull timeContract workTemporary workFor contractorsLocal area
- Requisition Id 17036 Overview: The Field Intelligence Operations Division (FIOD), of the National Security Sciences Directorate (NSSD), invites candidates to apply to join the team as a Senior High-Performance Computing (HPC) Engineer for Classified Computing ...Work at officeRelocation packageFlexible hours
- ...enables world-class science in support of national security. You will work alongside leaders in HPC and advanced computing while helping develop and modernize the storage capabilities required for current and emerging national security missions.We are looking for someone who...Work at officeRelocation packageFlexible hours
- ...engineering support for a new nuclear fuel facility. This role will develop and check calculations, update P&IDs, prepare equipment... ...D)Paid Time Off (Vacation & Public Holidays)Short Term & Long Term DisabilityJob SummaryID: 31FC78A300Department: OkloType: full timeFull timeContract workTemporary workLocal area
- ...activities for nuclear, chemical, high-hazard, or DOE facility systems. Develop, review, and approve process flow diagrams, piping and... ...D)Paid Time Off (Vacation & Public Holidays)Short Term & Long Term DisabilityJob SummaryID: B655F5343EDepartment: OkloType: full timeFull timeContract workTemporary workLocal area
- ...team in the adherence of planning, policies, practices, and manages personnel while overseeing a development project or group of developers. Responsible for personnel management including mentoring of junior team members, daily supervision and assigning of tasks, and annual...Contract workWork at office
- ...Engineering facilitates the delivery, operation, and monitoring of developed applications for R&D projects. We operate within an Agile... ...one another, work together, and measure success. Our Stack and Workflow: Work planning and documentation – Gitlab, Jira...Work at officeRelocation packageFlexible hours
$118.02k - $180.31k
...(DOE) and the National Nuclear Security Administration (NNSA). What does this mean? You can be a part of multi-discipline teams developing and designing facilities, systems, and equipment for the nation's major research laboratories and the legacy nuclear weapons production...Hourly payFor contractorsWork at officeLocal areaWork from home- ...projects involving data center construction, renovation, and other power and cooling-related infrastructure. The engineer assists with developing mechanical design packages, reviewing technical documentation, and ensuring engineering deliverables comply with applicable codes...
- ...frequently with scientists and engineers of various disciplines both inside and outside ORNL.Plan experiment loading configurations and develop instructions for HFIR Operator use to install them.Perform dose estimates to support safe transportation and handling of...Work from homeRelocation packageFlexible hours
- ...process skids, test stands, and industrial-scale cell systems. Develop electrical requirements, calculations, equipment specifications,... ...D)Paid Time Off (Vacation & Public Holidays)Short Term & Long Term DisabilityJob SummaryID: 2C9B7AB16FDepartment: OkloType: full timeFull timeContract workTemporary workFor contractorsLocal area
- ORNL is seeking a Data Engineer to automate image processing and data science workflows in a classified environment. You will build scalable pipelines for imagery and geospatial data, and deliver reproducible analytics with dashboards and technical artifacts. Candidates...
- ...networked computing environment concepts ~ Working knowledge of Unix systems fundamentals and common network protocols ~ Ability to develop and maintain programs and scripts that aid in the operation and automation of tasks using various shell and scripting languages (...Remote work
- ...furnaces, thermal equipment, fixtures, and custom process equipment. Develop mechanical design inputs, calculations, equipment specifications... ...D)Paid Time Off (Vacation & Public Holidays)Short Term & Long Term DisabilityJob SummaryID: 058D626DA8Department: OkloType: full timeFull timeContract workTemporary workFor contractorsLocal area
- ...Responsibilities: Advocate and promote HPC and clustered computing services to researchers who process large data sets and/or develop code as a part of their project. Ensure the availability, performance, scalability, and security of production systems. Leverage...Work at officeRelocation packageFlexible hours
- ...and cooling-related infrastructure. The engineer assists with developing electrical design packages, reviewing technical documentation,... ...environments.Experience supporting engineering deliverables across the full project life cycle (concept, planning, design, construction,...
- ...requirements management. The primary role will be to elicit, collect, develop, and migrate system and sub-system level requirements to support... ...Management tools, or similar tool sets This position is full-time remote on a 4-month contract, with a potential for contract...Remote jobFull timeContract workWork experience placementWork from homeFlexible hours
- Requisition Id 16693 Overview:We are seeking a Cooling Systems Engineer to provide technical engineering oversight of cooling systems supporting the Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR). This position resides in the Cooling Systems Group ...Relocation packageFlexible hours
- ...turnover of mechanical systems for mission-critical data center facilities within scope, schedule, budget, and available funding. Develop and review project definitions, conceptual mechanical system designs, scopes of work, methods of accomplishment, design documents,...For contractorsWork at officeRelocation packageFlexible hours
- ...CFD, FEA, and related tools; validate piping integrity under static and dynamic loads, and perform pipe-stress/structural analyses.Develop, review, and red-line mechanical and piping drawings, plans, and specifications derived from engineering calculations; ensure compliance...Contract workTemporary workFor contractors
- ...specifications.Applies knowledge and experience to complex projects, find's/develops non-standard design solutions.Quality review production drawings... ...skills. EEO/Disabled/VeteransJob Field: Civil EngineeringJob Type: ExperiencedSchedule: Full-timeTravel: Yes, 25 % of the TimeFor contractorsWork at officeLocal areaRemote workFlexible hours
- ...relationships with existing clients, customers and contractors and develop new business opportunities. Responsible for ensuring customer... ...solving skills.EEO/Disabled/VeteransJob Field: Mechanical EngineeringJob Type: ExperiencedSchedule: Full-timeTravel: Yes, 25 % of the TimeFor contractorsWork at officeLocal areaRemote workFlexible hours
- ...Oak Ridge, TN, is seeking a Data Engineer to automate image processing and geospatial analytics in a secure environment. You will develop scalable pipelines, ingest and transform imagery and geospatial data, and build dashboards and artifacts to communicate findings to...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Full Stack Developer. Be the first to apply!



