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Oleg S.

Oleg S.

AI Developer | AI/ML Software Architect | AI Mobile & Web | WebRTC

Your AI-built MVP works in a demo, but is it ready for customers? Your SaaS product is growing, but the architecture and team are struggling to keep up? Or you need a technical leader who can make decisions and own delivery? I step in as a Fractional CTO. I align product goals with engineering, set the technical direction, and stay accountable through launch and beyond. I work with founders and executives, lead distributed teams, and still write code when the problem calls for it. I bring 30 years in software, including 20 years running a development company. I’ve architected 50+ production systems across eCommerce, mobile, real-time communication, and AI. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I DO (1) Fractional CTO leadership. I turn business priorities into a product roadmap, architecture, team plan, and delivery milestones. I help founders move from startup idea to MVP, then from MVP to a reliable product that can scale. (2) AI products and AI cleanup. I build AI features into real products, including LLM integrations, RAG, agents, and automation. If an MVP was built quickly with AI coding tools, I can audit the code, address security and reliability risks, and prepare it for production and future development. (3) Technical due diligence and audits. I assess codebases, cloud infrastructure, delivery processes, and team capability. You get a clear view of what is working, what creates risk, and what to fix first before a major investment or expansion. (4) Architecture and delivery. I lead web, mobile, SaaS, and real-time product development, including AWS cloud architecture and WebRTC systems. When a project needs a larger team, I can bring in engineers from my company and remain responsible for the technical decisions and delivery. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PROOF FROM PROJECTS • Helped build IBIS’s dual-storefront eCommerce platform. Uran Company’s published case study reports page loads improved by more than 50%. • Built native iOS and Android apps for DreamsCloud as part of the Uran Company team. Its published case study reports more than 100,000 downloads. • Delivered SpecFinder, an AI tool that finds product specifications from text or images, with the Uran Company team in approximately six weeks. These are team results. I can explain my personal role and the decisions I owned in any project relevant to your needs. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ HOW I WORK We agree on the outcome first: a product launched, a risk resolved, a system made reliable, or a process that saves time or cost. Then I assess the current position, identify the most important decisions, and build a practical plan with clear ownership and milestones. You have one person accountable for the technical direction, whether I am working hands-on, guiding your existing engineers, or leading a team from my company. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TECHNOLOGIES AI: OpenAI and Anthropic APIs, LLM applications, RAG, vector databases, AI agents. Cloud and web: AWS, PHP, Laravel, Node.js, JavaScript/TypeScript, APIs. Mobile and real-time: iOS/Swift, Android/Kotlin, WebRTC, video, audio, and data channels. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Invite me to your project or book a consultation. Tell me what you are building, what is at risk, and the result you need. I’ll tell you the best first step.

🇧🇬Sliven, Bulgaria$50/hr100% JSS4.94 (11)Since May 2013

Earnings and projects

MRR (estimate)
≈$0

An estimate from an earlier read

World#115,838 / 412k
🇧🇬Country#386 / 1,161
Revenue, last 30 days
$0
Total earnings
$28k

Billed in all: $28k

World#115,838 / 412k
🇧🇬Country#386 / 1,161
Per project
$1.7k
Projects, last 6 months
0
World#209,850 / 412k
🇧🇬Country#517 / 1,161
Projects in all
16

Across 19 contracts

42% fixed58% hourly
World#155,087 / 412k
🇧🇬Country#533 / 1,161

Earnings, last 30 days

$28.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$27.5k$28.0k$28.5k$29.0kOct 9Oct 24Nov 8

No data since Nov 5, 2026.

Skills