3Si · 2 months ago
Technical Team Lead
United States
Full-time
Remote
Senior Level
5+ years exp3Si is a global leader in innovative security technology, dedicated to making the world safer. The Technical Team Lead is responsible for designing, building, and maintaining a high-quality, scalable web application for mapping GPS trackers and delivering alerts to users, while leading a team of web developers in implementing changes.
GPSPhysical SecuritySecurity
Responsibilities
Design, develop, and maintain dynamic, data-driven web applications using modern front-end and back-end technologies
Design, develop, and maintain dynamic, data-driven mobile applications
Willingness to make mission critical decisions and assume ownership of platform and architecture
Lead architectural and design decisions for new and existing web projects
Write clean, maintainable, well-documented code and enforce best practices through code reviews
Optimize applications for maximum speed, scalability, and cross-browser compatibility
Implement security and data protection measures within web solutions
Troubleshoot and debug issues across the full web stack
Stay up to date with industry trends and emerging technologies
Qualification
Required
Design, develop, and maintain dynamic, data-driven web applications using modern front-end and back-end technologies
Design, develop, and maintain dynamic, data-driven mobile applications
Willingness to make mission critical decisions and assume ownership of platform and architecture
Lead architectural and design decisions for new and existing web projects
Write clean, maintainable, well-documented code and enforce best practices through code reviews
Optimize applications for maximum speed, scalability, and cross-browser compatibility
Implement security and data protection measures within web solutions
Troubleshoot and debug issues across the full web stack
Stay up to date with industry trends and emerging technologies
Strong proficiency with server-side languages and frameworks (PHP)
Familiarity with RESTful APIs, databases (SQL and NoSQL), and web services
Familiarity with front-end technologies
Experience with Test-Driven Development (TDD) and writing unit, integration, and end-to-end tests
Proficient with version control tools (e.g., Git) and CI/CD practices
Strong understanding of responsive design, accessibility standards, and cross-browser development
Bachelor's degree in Computer Science, Web Development, or related field
5+ years of professional web development experience
Preferred
This position is a remote eligible position. Preferred location in Georgia/Southeast Region of the U.S
Occasional travel and In-office requirements of approximately 15-25% of the time
Benefits
Hybrid, flexible work culture
Competitive benefits
Company
3Si
Redefined Actionable Intelligence: With a fresh new look and a revolutionary purpose and mission, we are positioned to better serve our clients, partners, law enforcement, and communities with our cutting-edge technologies and real-world experience to deliver redefined actionable intelligence via an integrated platform that significantly impacts the bottom line – and, more importantly, lives.
201-500 employees
H1B Sponsorship
3Si has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
$13MKey Investors
American Capital
2017-06-20Acquired
2002-07-29Series Unknown· $13M
Leadership Team
Matt Kushner
Chief Executive Officer
Todd Leggett
CEO
Recent News
2025-09-30
Morningstar.com
2025-09-12
Company data provided by crunchbase