Senior Software Engineer

Team Cymru helps public and private sector analysts track and take down cybercriminals by providing global cyber threat intelligence and internet traffic telemetry. The Senior Software Engineer will design, build, and scale production-grade systems for threat intelligence data collection, processing, enrichment, and analyst and customer platforms while contributing to architecture, reliability, collaboration, and mentorship.

Responsibilities:

• 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
• 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
• Improve the reliability, performance, and observability of existing systems, including on-call participation for services you own
• Mentor other engineers through code review, pairing, and technical guidance; help raise the bar for engineering quality across the team

Requirements:

• 7+ years of professional software engineering experience, including significant time building and operating production systems at scale
• Strong proficiency in Go and comfort working across the stack, from data pipelines to APIs, services, and databases
• Demonstrated experience designing distributed systems, you can reason clearly about trade-offs in scalability, reliability, latency, and cost
• Experience working with large or high-velocity datasets; familiarity with streaming or batch data pipeline technologies is a strong plus
• Solid understanding of software engineering fundamentals: testing, CI/CD, version control, code review practices, and operational ownership (on-call, incident response)
• Experience building and maintaining ClickHouse and PostgreSQL databases
• Experience building and scaling large data platforms using the Medallion Architecture
• Excellent written and verbal communication skills, including the ability to explain technical trade-offs to non-engineering stakeholders
• A collaborative, low-ego approach to technical disagreement, mentorship, and cross-team problem-solving
• Experience with the specific data domains relevant to threat intelligence (network flow data, DNS, malware analysis, OSINT, or similar)
• Experience with AWS and infrastructure-as-code tooling
• Familiarity with security frameworks or standards relevant to the industry (MITRE ATT&CK, STIX/TAXII)
• Prior experience in a startup or fast-scaling engineering organization, including comfort with ambiguity and shifting priorities
• Open-source contributions or a public track record of technical writing/speaking
• Bachelor's degree or equivalent experience in Computer Science, Software Engineering, or related field (or equivalent practical experience)
• Genuine interest in cybersecurity or threat intelligence; prior experience in the domain is a plus but not required for a strong engineer with the right curiosity and aptitude
• Occasional travel for team meetings or industry events may be required