Senior Full Stack Engineer-Mobile Applications

Company: Trademasters Services I
Location: Lorton
Posted on: March 6, 2026

Job Description:

Trademasters, an award-winning contractor with over 30 years of industry experience, offers complete facility operations management, maintenance, and repairs to millions of square feet of premium government buildings, commercial, and residential clients. We provide quality and efficient services for all the following systems or needs: HVAC, plumbing, electrical, call-desk operations, steam, boilers, UPS, generators, custodial, grounds, pest control, fire control systems, elevators, gates, bollards, service calls, architectural, structural, and building systems. This position is part of an exciting new technology startup operating within Trademasters. We are building a first-of-its-kind franchising platform for the trades industry — a groundbreaking solution designed to empower skilled tradespeople to transition from being individual contributors at HVAC or other trade companies to becoming owners of their own businesses. Our platform lowers the barrier to entrepreneurship by providing the tools, structure, and support that make business ownership accessible to those who have mastered their craft. We seek a highly motivated Senior Full Stack Engineer with mobile application development experience to join our growing development team. In this role, you will be responsible for designing, building, and deploying software solutions in collaboration with our in-house and subcontractor teams. You will also help establish and maintain structure and best practices within the development process. If you are passionate about solving complex challenges, thrive in a dynamic team environment, and are excited to make a tangible impact, we encourage you to apply for this opportunity. Why join us? Be part of a collaborative, high-impact team. Work on meaningful projects that influence real-world solutions. Opportunity for career growth and expanded responsibilities over time. Supportive culture that encourages learning, innovation, and excellence. NOTE: Candidates must be authorized to work in the United States without requiring current or future H-1B Visa sponsorship. Trademasters is an I-9 e-Verify Employer. Location : Our preference is to hire someone who can work on-site in Lorton, Virginia, at least two (2) days per week. However, we will consider a fully remote arrangement for the right candidate. We are a V3 (Virginia Values Veterans) employer. Veterans are encouraged to apply. Senior Software Engineer Requirements: Bachelor’s degree in Computer Science, Software Engineering, or a related field. 6 to 10 years of experience developing within an Agile product development environment. Must have proficiency in mobile development technologies, iOS, and Android Must have proficiency in C# or C++ Must have proficiency in JavaScript Strong problem-solving skills and the ability to independently learn and adapt to evolving project needs. Excellent verbal and written communication skills, with a collaborative approach to working within a team. Senior Software Engineer Preferred Qualifications: Experience with enterprise software solutions. Knowledge of full-stack development. Back-end development expertise. Familiarity with cloud platforms such as AWS, Azure, or Google Cloud. Exposure to product management or team leadership responsibilities. Senior Software Engineer Key Responsibilities: Analyze project requirements and design architecture for consumer-facing components. Lead portions of the software development process and collaborate with team members to integrate and deploy solutions. Contribute to and help guide technical decision-making processes. Document and promote best practices within the internal development team. Senior Software Engineer Benefits: Cigna Medical, Cigna Dental, and EyeMed Vision coverage on your first day Company paid Life Insurance and Short-term disability coverage on your first day Long-term Disability Health Savings Account with generous employer contributions Generous 401K match and vesting with Roth option Paid holidays (6) Generous PTO No phone calls or emails, please. We will contact selected candidates. Recruiters and unsolicited services, please do not contact. EEO Statement: Trademasters prohibits discrimination against qualified individuals based on their veteran status, disabilities, age, ethnicity, national origin, sex (including pregnancy and sexual orientation), religion, race, color, or genetic information. Equal Opportunity Employer/Veterans/Disabled PI338e7fb35836-25448-39907186

Keywords: Trademasters Services I, Dale City , Senior Full Stack Engineer-Mobile Applications, IT / Software / Systems , Lorton, Virginia