Wolfgang Hariri-Osei
Summary
CTO + co-founder of a $140M ARR Series C B2B SaaS (developer tools, 380 engineers); 99.98% uptime; multi-cloud AWS + GCP with active-active failover; hired 7 of 8 engineering L-team; 12 US patents granted; 4 papers accepted at NeurIPS / ICLR 2026. Ex-Staff Engineer at Google Search (ranking-quality). MIT PhD CS.
Experience
- Org: 380 engineers across 8 orgs (Platform 84 + Product 148 + Infra 62 + Security 22 + Data 28 + ML 24 + DevX 8 + Research 4); 7 direct-report VPs (all hired by me); retention 94% (industry benchmark 84%); Glassdoor 4.7/5 (top decile).
- Platform: 99.98% uptime (SEV1 count 2 in FY24, both < 20 min MTTR); multi-cloud AWS + GCP with active-active failover; 480 microservices on Kubernetes; 2.8M req/sec peak; 62B events/day.
- AI/ML: launched Copilot-style code-assist feature Q2 2024 (28% of active users engaging weekly); LLM eval framework with 480 tasks + 4 golden datasets; partnerships with OpenAI + Anthropic + Google DeepMind; 4 papers accepted at NeurIPS / ICLR.
- Delivery + PM partnership: weekly with CPO on quarterly product OKRs; DORA — DF: 380/wk, LT: 4hr, MTTR: 18min, CFR: 1.2%; product-to-eng ratio 1:4 across cross-functional pods.
- Security + compliance: SOC 2 Type II + ISO 27001 + HIPAA (2024); HackerOne bug bounty (48 valid submissions in 2024); zero data breaches in 5 yrs.
- Led ranking-quality team of 22 engineers on Google Search core ranking.
- 4 papers at SIGIR + WSDM (co-author on 'BERT-style Ranking' 2018).
- Departed to co-found Quill 2019.
IP + Research
• 12 US patents granted (all assigned to Quill); 4 additional filed 2026-25. • 4 research papers accepted at NeurIPS + ICLR 2026 (on AI code review + eval). • 4 papers at SIGIR + WSDM during Google tenure. • Keynote at KubeCon 2026 ('Multi-cloud Failover at Quill'); 14 engineering blog posts in 2026 (avg 84k views).
External Roles
• Advisor / investor at 8 seed-stage AI startups. • Technical advisor to a NeurIPS workshop steering committee. • Guest on Latent Space + a16z podcasts.
Education
Series C SaaS CTO + Co-Founder
CTO · 380 eng · 99.98% uptime · Multi-cloud AWS+GCP · 12 patents
Use this template