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Опыт работы

Staff Software Engineer

с 01.2015 по 01.2026 (11 лет)
Fintech startup, Дистанційно (IT)

Led the design and development of scalable backend and full-stack systems for finance and logistics platforms with 50K+ daily users
Designed and implemented microservices and modular backend architecture using PHP, Laravel, Symfony, Java, Spring Boot, Node.js, NestJS, JavaScript, and TypeScript
Owned key technical decisions around system architecture, service boundaries, API design, database structure, and deployment strategy
Migrated legacy monolithic components to microservices, improving scalability, maintainability, and release independence
Reduced database load and improved application performance through query optimization, indexing strategy, Redis caching, and background processing
Implemented event-driven workflows using RabbitMQ, improving the reliability of asynchronous business processes and inter-service communication
Built and maintained CI/CD pipelines using GitLab CI, Docker, and automated deployment workflows, improving deployment speed by 3x
Mentored 10+ distributed developers through code reviews, technical guidance, onboarding, architecture discussions, and development best practices
Introduced engineering practices focused on code quality, maintainability, testing, documentation, and long-term system reliability
Designed and built internal LLM-powered automation prototypes integrating the OpenAI API with vector-based retrieval (RAG) and function-calling patterns to support backend workflow automation



MY Telegram: https://t.me/valentininua

Знания и навыки

• MySQL
• Laravel
• React
• JQuery
• Symfony
• Vue.js
• Docker
• DDD
• Знання принципів TDD
• Node.js
• Java
• Nginx
• PostgreSQL
• SOLID Principles
• Scrum Agile
• Golang
• Yii
• Python
• PHP
• Spring Boot
• JavaScript
• TypeScrip
• Next.js
• Tailwind CSS
• MongoDB
• Redis
• Oracle SQL
• Event-Driven Architecture
• CQRS
• Hexagonal Architecture
• REST AP
• RabbitMQ
• Elasticsearch
• GitLab CI/CD
• GitHub Actions
• Linux
• Apache
• HTML
• Git
• WordPress

Знание языков

• Украинский — выше среднего
• Английский — выше среднего

Дополнительная информация

Senior Backend / Staff Software Engineer with 10+ years of hands-on experience designing scalable web applications, backend systems, and distributed architectures. Strong expertise in PHP, Laravel, Symfony, Java, Spring Boot, JavaScript/TypeScript, Node.js/NestJS, microservices, system design, and DevOps automation.

Experienced in architecture ownership, technical decision-making, mentoring, and backend delivery for finance, logistics, SaaS, and automation domains. Practical experience with Python-based AI/LLM workflows, including OpenAI API integrations, embeddings, vector search, RAG concepts, prompt engineering, structured outputs, tool-calling patterns, and backend automation scenarios. Open to relocation and business travel.