Hexagon US Federal, a subsidiary focused on serving the US Federal government, is seeking a Senior Software Developer to join their team in Philadelphia. This role combines technical leadership with hands-on development, requiring 15 years of experience and a Master's degree. The position involves leading software architecture, mentoring team members, and managing complex projects from conception to completion. The company offers a comprehensive benefits package including healthcare, 401k with generous matching, and professional development opportunities. The role requires Top Secret clearance and involves about 15% travel to CONUS locations. This is an excellent opportunity for experienced developers looking to work on mission-critical systems for federal clients while leading and mentoring teams. The company's focus on employee development, competitive benefits, and work-life balance makes it an attractive destination for senior technical talent. The role offers the chance to work with cutting-edge technologies while making a meaningful impact on government operations and mission effectiveness.