FinTech / Compliance
Enterprise CRM modules for multi-stakeholder approval workflows — advanced permissions, immutable audit trails, and automated reporting in a compliance-heavy environment.
Oleksandr Zarudnyak
I turn complex problems
into reliable software.
Full-Stack Engineer · TypeScript · Node.js · React · Vue
5+ years shipping production TypeScript across FinTech, AI SaaS, and EdTech — backend systems and frontends that measurably cut load times and DB load.
Get in touchHow I work
I take features from requirement to production: data model, API, UI, deployment. Backend depth where it counts — schema design, caching, performance — paired with frontend work that's fast and clean. One person, full context, no gaps between the layers.
These days I'm also a vibe-code janitor 🧹 — turning AI-generated spaghetti into maintainable, production-grade code.
Skills
Languages
Backend
Frontend
Databases & Storage
Cloud & Infrastructure
AI & Integrations
Practices & Tools
Domains
AI SaaS
LLM/NLP-driven product features — schema design, API orchestration, and real-time AI task generation on production AI platforms.
EdTech
Interactive learning and personal-growth apps — reusable Vue/Nuxt components, state management, and AI-generated media integration.
Enterprise ERP & Data Infrastructure
High-load relational systems — query optimization, custom REST/HTTP services, and bi-directional data pipelines between enterprise tools.
Experience
KeenEthics
Apr 2022 – Present · RemoteFull-Stack Engineer
Web & AI platforms across FinTech, AI SaaS, and EdTech.
Todexpo
May 2021 – Apr 2022 · RemoteFull-Stack Developer
Serverless APIs and interactive frontends for an event-management platform.
Eurasian Group of Companies & Freelance
Aug 2013 – May 2021 · RemoteBackend & Database Engineer
Enterprise ERP, high-load data synchronization, and system optimization.
Languages
UkrainianNative
RussianNative
EnglishProfessional working proficiency
GermanA2 (basic)