Senior Software Engineer

About the role

Team Cymru's mission is to save and improve human lives by helping public and private sector analysts track and take down cybercriminals, providing visibility into global cyber threat activity and serving as a key intelligence source for leading cybersecurity and threat intelligence vendors. Our Pure Signal™ platform gives enterprise security teams on-demand access to global internet traffic telemetry, providing clarity into what's happening across the internet with a level of visibility comparable to their own internal networks. This allows organizations to close detection gaps, accelerate incident response, and get ahead of critical, recurring threats. Team Cymru is a fast-paced, distribution-focused, private equity–backed company where your work directly supports a mission that protects millions worldwide. We're looking for a Senior Software Engineer to design, build, and scale the software that powers our threat intelligence capabilities, from data collection and enrichment pipelines to the platforms and tools analysts and customers rely on. You'll operate with significant technical ownership, working closely with stakeholders to turn deep domain knowledge into reliable, production-grade systems. This role suits an engineer who can move fluidly between hands-on coding, system design, and mentoring, and who is energized by the mission-driven, high-signal nature of threat intelligence work. This is a remote position; occasional travel for team meetings or industry events may be required.

Responsibilities

• System Design & Development: Design, build, and operate large-scale, high-throughput systems for collecting, processing, and enriching threat intelligence data (network telemetry, indicators of compromise, malware artifacts, or similar)
• Own significant components or services end-to-end, from technical design through deployment, monitoring, and iteration in production
• Write clean, well-tested, maintainable code in Go, and contribute to our engineering standards and practices
• Participate in architectural decisions, design reviews, and technical planning; provide informed input on trade-offs around scale, latency, and data integrity
• Collaboration & Domain Translation: Partner directly with threat intelligence analysts and researchers to translate investigative workflows and detection logic into scalable software
• Collaborate cross-functionally with product, security, and data teams to prioritize work that has direct impact on customer and analyst outcomes
• Reliability & Operations: Improve the reliability, performance, and observability of existing systems, including on-call participation for services you own
• Mentorship & Engineering Quality: Mentor other engineers through code review, pairing, and technical guidance; help raise the bar for engineering quality across the team