Alexey Y.

If your AI or backend system works in demos but struggles in production (latency, cost, reliability, unclear architecture) - I can help. I’m a senior systems/backend engineer with CTO-level experience. I design architecture, lead execution, and help teams ship production-grade systems that work under real load, real data, and real constraints. I do as an advise as I take ownership and drive delivery. 🚀 What I Solve • AI prototypes that fail in production (latency, cost spikes, instability) • Backend systems slowing down under growth • Lack of clear architecture and technical ownership • Teams stuck without strong technical leadership • Overcomplicated systems with high operational cost ⚙️ What I Deliver • Production AI systems (architecture, rollout, reliability, guardrails) • Backend & distributed systems design (scalable, maintainable) • Performance optimization (bottlenecks, high-load systems, latency reduction) • Stability & reliability (incident reduction, observability, deployment hygiene) • Cost optimization (infra simplification, efficient architecture decisions) • Turnaround projects (rescuing failing or delayed systems) • Technical leadership (roadmaps, execution, code reviews, mentoring) 🧠 Specialized Expertise • High-load & low-latency systems • Market data systems & trading infrastructure • kdb+ / q (time-series analytics, tick data processing) • Real-time data pipelines • Production AI / backend integration 🛠 Tech Stack Go, Python, Node.js PostgreSQL, Redis Kubernetes, Docker Distributed systems, APIs, event-driven architecture 📊 Experience & Credibility • 17+ years in software engineering and system architecture • Led distributed teams (15+ engineers across EU, Asia, LATAM) • Built and scaled SaaS, fintech, and high-load systems • Experience with trading systems and real-time market data • Successfully passed Toptal screening (top-tier engineering network) 🧩 How I Work 1. Identify the real bottleneck (architecture, infra, data flow, or team execution) 2. Define a clear, pragmatic plan (milestones, risks, priorities) 3. Lead execution and ensure delivery without creating new tech debt You get clarity, speed, and results. 📬 Let’s Talk Send me: • Your current architecture (even rough) • Your main bottleneck • What “success” looks like (latency, cost, reliability, delivery timeline) I’ll propose a clear plan within 24 hours.