Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
SOSi is seeking a highly qualified SharePoint/Power Apps Developer to join our team on site in Fort Belvoir, VA, in support of our government customers. In this role, the SharePoint/PowerApps Developer provides development, configuration, and technical support for SharePoint Online, Power Apps, and Power Automate solutions within Army or similar DoD environments. Under the guidance of senior developers and project managers, this role assists with designing and building applications, translating functional requirements into technical components, and supporting daily operations and sustainment activities. The Junior Developer applies foundational knowledge of SPFx, Power Platform tools, and modern web technologies to help deliver secure, compliant, and maintainable solutions. This individual participates in documentation, troubleshooting, testing, site configuration, and workflow automation, gaining experience across the full software development lifecycle while ensuring solutions meet Government standards and project quality requirements.
Essential Job Duties:
Minimum Requirements:
Work Environment
Working at SOSi

SOSi solves the challenges of the modern mission. A leader in delivering transformational and trusted technology and mission solutions, SOSi supports clients across the aerospace, defense, and government services industry.
Where others see the size of the challenge, we succeed at delivering solutions! #ChallengeAccepted
--
Fraud Alert:
Recruitment fraud is a growing trend where fraudsters impersonate SOSi and its employees to deceive job seekers with fake employment opportunities. These scams typically involve fake job postings, unauthorized email accounts, or forged documents claiming to be from SOSi. The intent is to gain access to your personal information, including banking details, credit card numbers, or social security numbers.
Please be aware that all legitimate SOSi communications come from official @sosi.com or @sosi.us email addresses, and we never request personal information during initial contact. Our official careers site can be found at sosi.com/careers and our corporate site at sosi.com.
If you receive a suspicious job offer claiming to be from SOSi, contact us directly at careers@sosi.com to verify its legitimacy.