Open to opportunities

David Jack

@davidjack

Message

I build reliable cloud-native billing and data platforms at scale.

United States

Message

What I'm looking for

I'm looking to build reliable, high-scale cloud-native products where I can own data-intensive services, strengthen performance and security, and make clear architectural decisions alongside a strong engineering team.

At Metronome, I led engineering for a usage-based billing platform supporting 150M+ end users, building high-availability services, REST APIs, and cloud-native data systems for AI and SaaS customers. I improved large-scale processing throughput by 1.7x, accelerated root-cause analysis by 36%, and strengthened identity, authentication, and fraud-prevention workflows.

Previously at Apollo.io, I scaled contact enrichment and customer-acquisition systems across 270M+ verified contacts; at Nokia, I contributed to cloud-native telecom, orchestration, identity, and authentication services. I bring an ownership mindset to distributed systems, performance, observability, testing, and maintainable architecture.

Experience

Work history, roles, and key accomplishments

Lead Software Engineer

Metronome

Oct 2023 - Mar 2026 (2 years 5 months)

Led engineering initiatives for the usage-based billing platform powering pricing and revenue operations for AI and SaaS customers. Focused on high-availability services, data-intensive systems, and data-driven applications handling billions in revenue events across 150M+ end users.