Backend Full Stack Developer Jobs in Tennessee (NOW HIRING)

COMPANY OVERVIEW

XCEL 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 OVERVIEW

XCEL Engineering is seeking a highly motivated and adaptable Full Stack Developer to support the American Science Cloud / Genesis Project. This role is ideal for a driven professional who thrives in fast-paced environments and brings a "can-do" attitude to solving complex technical challenges. You will play a key role in designing and developing modern, intelligent user interfaces powered by emerging Agentic AI systems.

ESSENTIAL FUNCTIONS

• Design, develop, and maintain responsive, high-performance front-end applications
• Collaborate with cross-functional teams to integrate AI-driven features into user interfaces
• Work within fast-paced, iterative development cycles to deliver production-ready solutions
• Implement and optimize workflows leveraging Agentic AI frameworks
• Contribute to architecture decisions and front-end best practices
• Integrate APIs and backend services using modern development standards
• Participate in code reviews, testing, and continuous improvement processes
• Support deployment and scaling of applications within the American Science Cloud ecosystem

BASIC QUALIFICATIONS

• U.S. Citizen with ability to obtain a security clearance. 
• Bachelor's Degree in Computer Science, Software Engineering, or related field
• 5+ years of professional experience in front-end or full-stack development
• Strong proficiency in:
• Experience working with Agentic AI systems or AI-driven development environments
• Hands-on experience with tools such as Claude Code and OpenClaw
• Proven ability to work effectively in fast-paced, dynamic project environments
• Strong problem-solving skills and a proactive, "can-do" mindset

DESIRED QUALIFICATIONS

• Master's Degree in Computer Science, Engineering, or related discipline
• Experience working on large-scale cloud-based platforms or government-related projects
• Familiarity with modern front-end frameworks (React, Vue, etc.)
• Experience integrating AI/ML models into production applications
• Strong understanding of UI/UX principles and performance optimization

PHYSICAL 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 855.212.1810. 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.