Mobile Developer Jobs in Oak Ridge, TN (NOW HIRING)

Requisition Number: 28908
Required Travel: 0 - 10%
Employment Type: Full Time/Salaried/Exempt
Anticipated Salary Range: $100,696.00 - $155,000.00
Security Clearance: Ability to Obtain
Level of Experience: Mid
This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems.
HII works within our nation's intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.
Leadership Mindset at HII - Mission Technologies
Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every team member contributes to our mission and culture:

• Know & Grow Your People - Commit to learning and supporting team success.
• Build Relationships - Communicate openly, collaborate well, and build trust.
• Take Ownership - Deliver on commitments and take pride in your work.
• Customer First - Focus on the mission and those we serve.
• Shape the Future - Bring ideas, curiosity, and continuous improvement.
• Act with Urgency - Take initiative and follow through with purpose.

These capabilities guide how all employees contribute to our shared success across Mission Technologies.
Job Description
Mission Technologies, a division of HII, is hiring a Lead Power Systems Engineer supporting operations at our Knoxville, TN location.
The Lead Engineer will lead and direct the assembly, integration, testing, and troubleshooting of highpower Power and Energy Systems (PES) used in modular microgrids and advanced load applications, including directed energy weapon systems. This role ensures that complex system designs translate into safe, functional, and productionready hardware while mentoring junior engineers and establishing technical standards across the program.
Essential Job Responsibilities
Lead end-to-end integration of complex PES power systems, overseeing hardware assembly, rack and container integration, MOSA-based architectures, and safe HV/LV bring-up. Develop and execute system- and component-level test strategies, operate advanced power test equipment, and run FATs, fault-insertion, and verification campaigns. Drive expert troubleshooting and structured root-cause analysis, manage documentation and configuration control, and provide technical feedback to improve design robustness. Enforce high-voltage safety, ensure compliance with military and industrial standards, and lead hazard analyses. Provide technical leadership across projects, interface with programs and customers, mentor engineers, drive continuous improvement, and support proposal development.
Minimum Qualifications

• 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; or 4 years relevant experience with PhD or Juris Doctorate in related field.
• Significant experience with high-power electrical systems (25 kW+, ideally 100 kW+).
• Strong knowledge of:
  • Power converters (rectifiers, inverters, bidirectional DC-DC, AFE)
  • Energy storage systems (Li-ion, supercapacitors) and BMS integration
  • Protection and switching devices (contactors, solid-state switches, fuses, breakers)
  • Power quality, harmonics, and EMI/EMC
• Proficient with electrical test equipment (DMMs, oscilloscopes, power analyzers, DAQs, thermal cameras).
• Skilled in creating, interpreting, and approving schematics, wiring diagrams, one-lines, and P&IDs.
• Experienced in system integration, testing, and troubleshooting.
• Strong customer-facing skills and experience leading technical reviews.
• Proven ability to mentor junior engineers.
• Experienced in supporting proposals with technical input and cost/schedule estimates.
• Able to obtain and maintain a US Secret clearance.

Preferred Requirements

• Experience with directed energy systems (high-power lasers, HPM, railguns) or pulsed power applications.
• Experience with military microgrids, shipboard power systems, or mobile power generation.
• Familiarity with MOSA (Modular Open Systems Approach) implementation in hardware systems.
• Knowledge of MIL-STD-1399, MIL-STD-461, NFPA 70E, IEEE 1547, UL 1741, and related standards.
• Professional Engineer (PE) license or equivalent certification.
• Experience leading proposals and providing technical cost/schedule estimates.
• Track record of establishing technical standards and best practices across programs.
• Active US Secret clearance minimally.

Physical Requirements
Office, industrial or shipboard environment. Capable of climbing ladders and tolerating confined spaces and extreme temperature variances. Lifting and moving of materials not to exceed the guidelines set for one man lift.
The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.
Meet HII's Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense - the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that's right for you. Apply today. We look forward to meeting you.
To learn more about Mission Technologies, click here for a short video: https://vimeo.com/732533072
HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application.
Why HII
We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career.
Together we are working to ensure a future where everyone can be free and thrive.
All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.
Do You Need Assistance?
If you need a reasonable accommodation for any part of the employment process, please send an e-mail to buildyourcareer@hii-co.com and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call 1-844-849-8463 for assistance. Press #3 for HII Mission Technologies.