About 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
Ukrainian
Native or bilingual
Russian
Native or bilingual
English
Fluent
French
Fluent
Can work on-site
Nice (up to 50km)
Experience
- MemoAIFounder & Technical Lead – AI-powered mobile productEDUCATION AND E-LEARNINGJanuary 2025 - Today (1 year and 5 months)- 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 | ArchitectJanuary 2024 - Today (2 years and 5 months)• • 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 LeadJanuary 2021 - January 2024 (3 years)• • 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
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Education
- Master Degree in FinanceUniversity of Customs and FinanceMaster Degree in Finance