À propos de Konstantin
Technical Lead with 8+ years of experience in software development, including 3+ years leading engineering teams and complex product ecosystems.
I help companies design, build, and scale web and mobile applications — from MVPs to large-scale systems with 100k+ users.
In addition to full-stack development, I have strong hands-on experience in native iOS development (SwiftUI) and building modern backends using Supabase (Postgres, Auth, Realtime, Edge Functions).
My focus is not just writing code, but solving business problems through technology: improving delivery speed, reducing complexity, and building systems that scale.
🔹 What I can help you with
- Architecture design (web, mobile, backend)
- Building MVPs fast (React / Next.js / SwiftUI + Supabase)
- Native iOS development with SwiftUI
- Backend design with Node.js or Supabase (Postgres-based)
- Refactoring and stabilizing existing systems
- Integrating AI features into products (chat, assistants, automation)
- Improving delivery processes (CI/CD, team workflows)
- Leading and mentoring engineering teams
🔹Tech Stack
- Mobile: SwiftUI (native iOS), Ionic (hybrid apps with Capacitor)
- Frontend: React, Next.js, Angular
- Backend: Node.js (primary), Java, .NET
- Database: PostgreSQL, MySQL, SQL Server
- BaaS: Supabase, Firebase
- Cloud & DevOps: AWS (ECS, containers), CI/CD
- Auth: OAuth (Google, Apple), Supabase Auth
🔹Recent Experience
- Built and launched a native iOS app (SwiftUI) with AI-powered features (chat, structured responses, vocabulary assistant)
- Designed architecture combining Supabase (Auth, Postgres, RPC, Edge Functions) with mobile and web clients
- Technical leadership across a multi-platform ecosystem (client portal, manager portal, trading platform, investment platform)
- Systems handling 100k+ accounts / 30k+ users
- Improved delivery speed by ~25% using process optimization and AI tools
- Led teams of up to 25 engineers
Ukrainien
Bilingue ou natif
Russe
Bilingue ou natif
Anglais
Capacité professionnelle complète
Français
Capacité professionnelle complète
Accepte de travailler sur site
Nice (jusqu’à 50 km)
Expériences
- MemoAIFounder & Technical Lead – AI-powered mobile productEDUCATION & E-LEARNINGjanvier 2025 - Aujourd'hui (1 an et 5 mois)- Designed and developed a production-ready mobile application (iOS, SwiftUI) focused on AI-assisted language learning- Built a full-stack architecture combining SwiftUI (frontend) with Supabase (Postgres, Auth, RPC, Edge Functions)- Implemented AI-powered features including structured responses, contextual explanations, and interactive chat flows- Designed a custom LLM prompt + markup system to generate structured, UI-ready content (avoiding additional parsing layers)- Optimized performance and cost of AI interactions (streaming, token usage, response structuring)- Built a Next.js-based marketing website and B2B portal- Designed and implemented a referral system for partners, including user tracking, attribution, and conversion flows- Worked on conversion optimization (landing → signup → activation), aligning product and business metrics- Integrated analytics and tracking to support growth and partner performance monitoring- Prepared the application for App Store and Google Play release
- DataArtTechnical Lead | Architectjanvier 2024 - Aujourd'hui (2 ans et 5 mois)• • Lead engineering across 4 platforms: SD IRA core platform, trading platform (Interactive Brokers omnibus), investment opportunities platform, tax module (1099/5498)• • Coordinate up to 25 engineers across backend, frontend, QA automation, and data teams• • Manage 4 parallel streams: core product, ATG to InnoTrust migration, QA automation, data warehouse• • Designed ACL architecture enabling parallel run of legacy and new systems• • Maintained continuous delivery without feature freeze during migration• • Improved delivery speed by ~25% via AI adoption• • Led AWS migration and containerization (ECS)• • Managed integrations with 6+ external financial systems
- DataArtSenior Software Engineer | Team Leadjanvier 2021 - janvier 2024 (3 ans)• • Led development of fintech portal for investment firms• • Managed engineering team and delivery processes• • Designed frontend architecture (React)• • Contributed to backend services (.NET)• • Managed AWS infrastructure
Recommandations
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Formations
- Master Degree in FinanceUniversity of Customs and FinanceMaster Degree in Finance