Contact information

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Work experience

Full stack developer

from 05.2024 to now (2 years 4 months)
Taproot Solutions Inc, Remote (IT)

-Architected greenfield SaaS platform using React, NestJS, and TypeScript, establishing scalable service boundaries, API contracts, and frontend component standards across distributed engineering teams.
-Integrated LLM workflows using LangChain, OpenAI API, and Anthropic Claude into production Healthcare features,enabling AI-assisted document processing and intelligent user interaction at throughput.
-Built event-driven microservices using Kafka and RabbitMQ on AWS ECS, improving system resilience and decoupling FinTech transaction processing from synchronous API response dependencies.
-Deployed Kubernetes-orchestrated Node.js services with Terraform and AWS Lambda, establishing infrastructure-ascode standards and reducing environment inconsistency across staging and production releases.
-Implemented GraphQL Apollo federation layer across Healthcare platform services, reducing over-fetching, improving query performance, and standardising data access for React frontend consumers.
-Established Jest and Playwright testing standards across frontend and backend codebases, raising coverage quality and reducing post-deployment defect rates on critical SaaS platform workflows.
-Engineered RAG pipeline features using pgvector and LangGraph, enabling semantic search and contextual retrieval across Healthcare document collections within production application workflows.
-Mentored mid-level engineers through architecture walkthroughs, code reviews, and AI-assisted development workshops using Cursor AI IDE and Claude Code tooling across the team.
-Collaborated with product, design, and operations stakeholders to translate complex requirements into phased delivery milestones, maintaining implementation clarity during high-pressure SaaS release cycles.

Fullstack Developer

from 01.2020 to 04.2024 (4 years 4 months)
Biztree, Remote (IT)

-Delivered full-stack FinTech features using React, Redux Toolkit, and Node.js, maintaining clean component architecture and reliable API integration across iterative product delivery cycles.
-Constructed PostgreSQL-backed REST APIs in Express.js with OpenID Connect authentication, supporting compliance-aware access control across sensitive FinTech user data workflows.
-Integrated third-party engagement and billing APIs including RevenueCat and external marketing platforms, extending
SaaS platform capability while maintaining data consistency and reliability.
-Built CI/CD pipeline configurations in GitLab CI and Docker for full-stack service deployments, reducing integration errors and supporting steadier FinTech platform release operations.
-Developed WebSocket-powered real-time features for FinTech dashboards using Node.js and Redis pub/sub, improving data freshness and user experience across high-activity trading workflows.
-Refactored legacy JavaScript modules into TypeScript with improved test coverage using Vitest and Testing Library,reducing regression frequency and improving long-term maintainability.
-Produced Figma-aligned React component libraries with consistent styling standards, accelerating frontend delivery and improving design-to-implementation fidelity across FinTech product workstreams.

Web developer

from 07.2016 to 12.2019 (3 years 6 months)
Ateliware, Remote (IT)

-Built foundational REST API endpoints in Node.js and Express.js supporting Healthcare platform data workflows, developing practical backend delivery skills under senior engineering guidance.
-Developed React frontend components consuming PostgreSQL-backed APIs, improving data visibility for internal Healthcare operations and patient-facing application workflows.
-Participated actively in Agile/Scrum ceremonies including sprint planning, standups, and retrospectives, developing disciplined delivery habits within a structured on-site engineering team.
-Resolved production bugs across React and Node.js codebases using Jest unit tests and structured debugging, restoring application reliability during active Healthcare platform release cycles.
-Supported AWS S3 and deployment configuration tasks under senior guidance, gaining practical exposure to cloud infrastructure patterns and CI/CD release operations.
-Wrote integration and unit tests for API and frontend modules using Jest and Testing Library, improving code reliability and reducing regression risk across iterative Healthcare development cycles.

Education

University of California, Berkeley

Computer Science, Kyiv
Higher, from 2012 to 2016 (4 years)

Additional education and certificates

AWS Certified Solutions Architect - Associate

2019

Kubernetes Certified Administrator (CKA)

2020

Knowledge and skills

• JavaScript
• TypeScript
• Python
• CSS
• Node.js
• NestJS
• Express.js
• GraphQL
• GRPC
• REST API
• WebSocket
• Apollo
• Tailwind CSS
• Material UI
• React
• Next.js
• Redux
• Redux Toolkit
• React Query
• Vite.js
• Webpack
• Figma
• Llm agents
• OpenAI
• LangChain
• Rag
• AI prompting
• Apache Kafka
• RabbitMQ
• Redis
• DynamoDB
• MongoDB
• PostgreSQL
• MySQL
• MS SQL Server
• Git
• Jenkins
• CI/CD
• AWS
• Google Cloud Platform
• MS Azure
• Docker
• Kubernetes
• Terraform
• Jest
• Vitest
• Jira
• Vue.js
• Angular
• Machine learning

Language proficiencies

English — fluent

Additional information

Personal qualities: Responsible, detail-oriented, fast learner, good communication skills.
Motto: Always deliver quality work on time.
Achievements: Successfully completed freelance projects and worked with international clients.
Hobbies: Learning new technologies and self-development.
Work preferences: Remote work, clear communication, long-term cooperation.