Gleb Rosev
FOUNDING ENGINEER @ YAGNI.APP // PRODUCTION AI AGENTS
rossevgleb@gmail.com · +995 591 90 81 80 · linkedin.com/in/rossev · github.com/Grumbash · rossev.dev · Tbilisi, Georgia, UTC+4
Now: Founding Engineer at YAGNI, building AI agent teams (PM, Builder, Reviewer) that take work from proposal to merged PR under human-approved plans. Before: healthcare voice AI at Sully.ai. 8+ years in engineering.
Experience
Founding Engineer, AI Agents · YAGNI (yagni.app)Nov 2026 — Present
- Tenant isolation: tenant-scoped query guards and sandboxed code execution.
- Connector backfills made self-healing: stuck-cursor recovery, progress tracking and hard caps for long syncs of large workspaces.
- Code-review agent reliability: fixed ticket-key collisions between YAGNI and external trackers that sent the reviewer to the wrong issue.
Staff Harness Engineer, AI Voice Systems · Sully.aiSep 2025 — Oct 2026
- Led core engineering for the MENA launch: UAE infrastructure, Azure Blob Storage support, regional configuration and production readiness.
- Removed ~15 s of dead air at pickup on outbound calls: the agent was greeting the caller while the line was still ringing.
- Made agent dispatch reliable on LiveKit: retry-and-verify, no more duplicate agents in one call, no more silent calls.
Engineering Manager / Senior Full-Stack · KingpinSep 2024 — Sep 2025
- Led a cross-functional team of up to 12 people while staying active in architecture and code.
- Delivered multi-tenant catalog/order workflows with ERP/CRM syncs and feature-flagged trunk-based releases.
- Built an LLM feedback pipeline converting Sales/CS input into product insights (-80% analysis time).
Lead React Native Developer · KernelicsFeb 2023 — Sep 2024
- Led a 5-person team across web and mobile product delivery in a shared monorepo.
- Integrated native cryptographic modules into a flagship application with 100,000+ downloads.
- Hardened CI/CD build pipelines and production runtime stability.
Frontend Team Lead · RN Manager · Full-Stack · BattlePro & ITechArtJan 2018 — Feb 2023
- Owned frontend architecture and hiring for a 5-engineer team at BattlePro; doubled velocity (25 → 55 SP) and hit 220ms TTFB / 1.7s TTI.
- Architected a full-stack virtual networking platform at ITechArt that subsequently attracted $10M+ in investment.
- Delivered 150+ advanced React/JS lectures at TeachMeSkills; curriculum adopted by 1,500+ students/year.
Skills
- AI AGENTS & VOICE SYSTEMS
- Agent Teams & Harnesses · Agent Evaluation & Benchmarks · Self-Improving Loops · Sandboxed Code Runners · OpenAI / Claude / Gemini · LiveKit · Twilio · Speechmatics · MCP · RAG Pipelines
- ARCHITECTURE & CLOUD
- Distributed Systems · Multi-Tenant Isolation · Backend Services · GitHub & ERP/CRM Integrations · PostgreSQL · Redis · Kubernetes · Docker · AWS · GCP
- RELIABILITY & OPS
- Risk Radar & Early Warning · Observability · Incident Response · Runtime Diagnostics · Grafana · Loki · Mimir · Trunk-Based Delivery · Canary Releases · Feature Flags
- FULL-STACK & MOBILE
- TypeScript · Node.js · NestJS · React · React Native · Next.js · PostgreSQL · MongoDB · Playwright · Cypress · Jest · Monorepos
- LEADERSHIP
- Teams of 5–12 Engineers · Customer Pilots & Demos · Technical Hiring · System Architecture · Mentoring (150+ Lectures) · Product Strategy
- Languages
- English · C1 · Russian · native