Available to hire
Full Stack Developer with 2+ years of experience building secure, scalable web platforms and REST APIs for enterprise users. I work with React, Node.js, and Python (plus Java/Spring Boot), focusing on secure authentication (JWT/OAuth), RBAC, auditing, and performance.
I also deliver real-time features with WebSockets and cloud-native deployments using Docker and container platforms (Google Cloud Run / Firebase). I write clean, maintainable code and communicate clearly in English while working independently in remote teams.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
Beginner
Language
Ukrainian
Fluent
Russian
Fluent
English
Advanced
Polish
Advanced
Italian
Intermediate
German
Beginner
Work Experience
Software Engineer at Capgemini
June 1, 2024 - August 31, 2025Built and maintained a secure, scalable customer-management web platform for 1,000+ internal enterprise users by implementing role-based access control, secure authentication flows, and audit logging. Developed 15+ REST APIs across Node.js, Python, and Java/Spring Boot to enable secure data exchange between microservices, external systems, and frontend dashboards, reducing data retrieval latency by 30% using caching and query optimization. Delivered responsive React/Angular dashboards supporting real-time data for 1,000+ users. Implemented containerized deployments with Docker and Docker Compose across environments, cutting setup time by 60%. Architected real-time data handlers on Google Cloud Run and Firebase Functions for live monitoring with 99.5% reliability. Performed 50+ code reviews, enforced clean-code standards, and debugged security/performance issues (20+ cases) to improve MTTR by 40%. Collaborated remotely using Agile/Scrum and Kanban to deliver 3 major releases with zero c
Junior Software Engineer (Full-Stack) at Capgemini
September 1, 2023 - June 30, 2024Shipped 8+ full-stack features end-to-end from React/Angular frontend to Python/Java/Node.js backend services and Docker-based deployments, owning the full lifecycle. Implemented secure CRUD operations and data validation for sensitive customer records with GDPR-compliant access control, authentication checks, and audit trails across 10,000+ daily transactions. Optimized SQL performance via indexing and query restructuring to reduce average response time by 35%. Built and tested REST APIs with JWT-style security patterns and input validation. Authored technical documentation for 5+ service modules to reduce onboarding time by 50% and support remote collaboration.
Education
Master in Computer Science (Minor in Business Management) at University of Zürich
January 11, 2030 - January 1, 2027Bachelor of Computer Science (Engineer title) at Adam Mickiewicz University
October 1, 2019 - June 1, 2023Qualifications
AWS Certified Cloud Practitioner
January 1, 2024 - August 26, 2026Angular NgRx
January 1, 2023 - August 26, 2026Building and Orchestrating Containers with Docker Compose
January 1, 2022 - August 26, 2026Industry Experience
Professional Services, Software & Internet
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
Beginner
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