AL

Alex Louttchenko

Available to hire

Full Stack Engineer with 5+ years building and evolving large-scale UI platforms in TypeScript-first environments.

About

Full Stack Engineer with 5+ years building and evolving large-scale UI platforms in TypeScript-first environments.
Experienced owning features end-to-end across regulated fintech and SaaS products - from architectural decisions and
roadmap input through deployment and post-deploy monitoring. Strong background in performance engineering, component
reusability, and maintaining code quality through rigorous testing and code reviews. Experienced in AI-assisted development
tooling to accelerate delivery cycles. Track record spanning Germany’s first licensed crypto savings platform, a B2B logistics
SaaS, and a payroll system scaled from 50 to 3,000+ concurrent users.

  • 5 years' experience
  • Joined October 2025

Languages

  • EnglishFluent
  • RussianFluent
  • Greek, ModernFluent
  • GermanBeginner

Industry experience

  • Financial Services
  • Transportation & Logistics
  • Other
  • Software & Internet

More experts in Limassol, Cyprus

Work experience· 6 roles

Fullstack Software Engineer · SIDESTREAM GmbHNov 2025 – Present · 1 yr 1 mo
Full Stack Engineer · Lohnbot GmbHAug 2024 – May 2026 · 1 yr 10 mos

Owned UI platform features end-to-end for an Austria payroll SaaS (specs, architecture decisions, production deployment, and monitoring) and collaborated with the German product team on roadmap planning, localization, and compliance requirements. Designed a Firestore key compression dictionary layer to cut infrastructure costs ~35% and improve platform performance by ~70% without requiring full data migration. Eliminated cascading React re-renders in the employee dashboard by refactoring Redux selectors/list-data flow, resolving UI freezes and scaling from ~50 to 3,000+ concurrent records. Migrated core tables to AG Grid Enterprise for virtualized/sortable responsive views and built a TOTP-based MFA system with QR provisioning plus password-gated deactivation via Firebase Admin SDK. Built CI/CD in GitHub Actions with PR preview deployments, Cypress E2E/performance regression tests against golden benchmarks, and post-deploy monitoring hooks; integrated Copilot into the daily workflow.

Fullstack Software Engineer · Lohnbot GmbHAug 2024 – Present · 2 yrs 4 mos
Full Stack Engineer · SideStream GmbHSep 2023 – Jun 2024 · 10 mos
Full Stack Engineer · Coindex GmbHJul 2021 – Sep 2023 · 2 yrs 3 mos
Fullstack Software Engineer · Coindex GmbhJul 2021 – Sep 2023 · 2 yrs 3 mos

Hire Alex Louttchenko today

Post a job and invite Alex, or contact them directly. No hidden commission.

Post a job