Software Engineer - DC with Security Clearance

Software Engineer Washington, DC About Us We are a fast-growing technology company founded by alumni of leading national security and privacy-focused tech firms. Our mission is to redefine mobile connectivity by putting users in full control of their digital identity. Were building a privacy-first wireless platform that protects users most personal information while enabling them to do more-not less. Backed by top-tier investors, we are expanding our team of innovators passionate about security, resiliency, and global connectivity. The Opportunity As a Software Engineer, you will build the core systems that secure end-to-end mobile communications. Your work will directly impact how users are protected across the communications stack-from device-level safeguards to hardened network infrastructure. Youll help develop systems that detect and mitigate malicious signaling attacks, identify fake cell towers, prevent spam and smishing campaigns, and deliver transparent security protections to users. This is high-impact engineering with real-world consequences. What You'll Do * Design & Integrate: Build foundational telecommunications infrastructure that ensures secure, resilient connectivity. * Own the Lifecycle: Take end-to-end ownership of critical components-from design through deployment. * Raise the Bar: Contribute to high engineering standards through code reviews and best practices. * Enable Scale: Develop reliable, high-performance systems that empower other teams to build securely and efficiently. What Were Looking For * 4+ years of professional software engineering experience * Strong foundation in Computer Science or related technical field * Fluency in Golang, Rust, Java/Kotlin, or Python * Solid understanding of algorithms, data structures, distributed systems, and cloud infrastructure * Strong written and verbal communication skills * US Citizenship (Required) / Active U.S. security clearance or eligibility * Conduct Business Negotiations in Mandarin * Maintain strong relationships with Taiwan-based partners (50% travel) Why This Role * Mission-driven work at the intersection of privacy, security, and national resilience * Real ownership and autonomy * Fast-moving, builder-oriented culture * Backed by top-tier investors * Opportunity to shape foundational infrastructure in a critical domain