Job Description

Job Description

Description:

Edge360 (a 3Si company), is looking for a motivated individual to fill the position of Jr. Software Developer. As a Cleared Jr. Software Developer, your responsibilities will include participating in technical development, testing, debugging, and implementation of enhancements to applications within area of responsibility. Additionally, you will be tasked with writing technical user guides and supporting documentation.

Requirements:

• Participate in software development, debugging, and testing for enterprise applications
• Implement enhancements and updates to existing systems under the direction of senior developers
• Assist in the preparation of technical user guides and support documentation
• Perform additional tasks as assigned to support the mission and goals of the team

Knowledge, Skills, and Abilities

• Strong analytical and problem-solving skills
• Understanding fundamental design principles behind a scalable application
• Experience with API development using the RESTful design pattern
• Working knowledge of Internet Information Services (IIS)
• Direct oversight from Supervisor or Manager
• Performing other duties as needed to help fulfill our mission

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related technical field
• Equivalent professional experience may be considered in lieu of formal education
• Associate degree in a technical discipline combined with relevant experience and/or industry certifications may also be considered
• 0–3 years of experience in software development
• Experience with C# and .NET
• Familiarity with Test-Driven Development (TDD) and/or unit testing
• Experience writing reusable C# libraries
• Experience with Microsoft SQL Server and writing stored procedures

Additional Comments

• Active Secret or higher U.S. Government security clearance required
• Position on-site in Alexandria, VA.
• Successful candidates must pass a comprehensive background investigation
• Pre-employment drug screening is required

Company Description

At 3Si, our mission is to make your world, safer. As a global leader in innovative security technology, we help businesses and law enforcement prevent and respond to crime through field-proven solutions and trusted partnerships. With over 100+ years of combined experience through our merged companies, our expertise drives measurable impact in communities worldwide.

We specialize in GPS tracking, video surveillance, and integrated response technologies that deter theft and accelerate criminal apprehension. Designed for retail, financial institutions, law enforcement, and more, our solutions combine cutting-edge tools with unmatched response capabilities. Through our exclusive DirectToDispatchTM technology, verified crime alerts are sent directly to law enforcement dispatch centers in real time—bypassing traditional third-party monitoring delays—to enable rapid, precise response when it matters most.

At 3Si, meaningful work makes a difference. We’re a purpose-driven team that values innovation, trust, and collaboration. From engineering to sales and support, every role contributes to our mission to protect communities and make the world safer. We offer a hybrid, flexible work culture, competitive benefits, and the chance to grow alongside a team of passionate, dedicated professionals.

3SI Security Systems
101 Lindenwood Dr #200
Malvern, PA 19355

Company Description

At 3Si, our mission is to make your world, safer. As a global leader in innovative security technology, we help businesses and law enforcement prevent and respond to crime through field-proven solutions and trusted partnerships. With over 100+ years of combined experience through our merged companies, our expertise drives measurable impact in communities worldwide.\r\n\r\nWe specialize in GPS tracking, video surveillance, and integrated response technologies that deter theft and accelerate criminal apprehension. Designed for retail, financial institutions, law enforcement, and more, our solutions combine cutting-edge tools with unmatched response capabilities. Through our exclusive DirectToDispatchTM technology, verified crime alerts are sent directly to law enforcement dispatch centers in real time—bypassing traditional third-party monitoring delays—to enable rapid, precise response when it matters most.\r\n\r\nAt 3Si, meaningful work makes a difference. We’re a purpose-driven team that values innovation, trust, and collaboration. From engineering to sales and support, every role contributes to our mission to protect communities and make the world safer. We offer a hybrid, flexible work culture, competitive benefits, and the chance to grow alongside a team of passionate, dedicated professionals.\r\n\r\n\r\n\r\n\r\n\r\n\r\n3SI Security Systems\r\n101 Lindenwood Dr #200\r\nMalvern, PA 19355