Kostiantin

Full stack developer, 100 000 грн

Розглядає посади: Full stack developer, Розробник PHP
Вид зайнятості: повна, неповна
Вік: 34 роки
Місто проживання: Київ
Готовий працювати: Дистанційно
Розглядає посади:
Full stack developer, Розробник PHP
Вид зайнятості:
повна, неповна
Вік:
34 роки
Місто проживання:
Київ
Готовий працювати:
Дистанційно

Контактна інформація

Шукач вказав телефон , ел. пошту та LinkedIn.

Прізвище, контакти та світлина доступні тільки для зареєстрованих роботодавців. Щоб отримати доступ до особистих даних кандидатів, увійдіть як роботодавець або зареєструйтеся.

Досвід роботи

Senior Fullstack Developer

з 11.2021 по 11.2025 (4 роки)
Netguru, Remote (IT)

- Built a customer-facing analytics SaaS serving ~18k monthly users, developing the frontend with React/ Next.js and adding server-side rendering (SSR) to improve SEO and reduce initial page load times.
- Migrated a legacy PHP reporting backend to NestJS (TypeScript) with PostgreSQL, optimizing queries, adding indexes, and resolving long-running requests under peak traffic.
- Developed internal admin tools with Vue.js, enabling operations teams to manage and update data without manual spreadsheets.
- Designed and maintained REST and GraphQL APIs for web and mobile clients, ensuring backward compatibility, handling breaking changes, and managing staged rollouts.
- Improved system performance and reliability by adding Redis caching and background processing with RabbitMQ, reducing synchronous request failures during traffic spikes.
- Deployed services on AWS (EC2, RDS, S3) and later containerized with Docker and Kubernetes, resolving autoscaling and health-check issues in production.
- Established CI/ CD pipelines using GitHub Actions and Jenkins, reducing deployment errors and rollback times to under 10 minutes.
- Built a nightly data synchronization service with FastAPI (Python), storing results in PostgreSQL and Elasticsearch to support reporting without impacting production traffic.
- Optimized PostgreSQL and MySQL performance using connection pooling, read replicas, and query tuning, reducing p95 latency under load.
- Applied Domain-Driven Design (DDD) and Clean Architecture when decomposing a growing monolith into smaller services, improving maintainability and developer onboarding.
- Mentored junior full-stack developers through code reviews, pair programming, and architecture guidance, improving code quality, delivery speed, and team best practices adoption.

Full Stack Developer

з 10.2017 по 11.2021 (4 роки 2 місяці)
Dashbouquet Development, Remote (IT)

- Developed and deployed a user management dashboard with React and Next.js, introducing server-side rendering (SSR) to improve SEO and reduce initial page load times.
- Built RESTful APIs with NestJS and Node.js to manage user authentication, user profiles, and CRUD operations on product data, while I was developing an e-commerce marketplace platform.
- Optimized PostgreSQL queries by adding indexes to frequently queried fields and refactoring slow-performing SQL commands.
- Integrated third-party APIs (payment gateways and shipping services), resolving common integration issues like mismatched data formats and authentication failures.
- Set up and maintained CI/ CD pipelines with GitHub Actions.
- Collaborated with the design team to implement responsive UIs using Tailwind CSS and Material UI.

Web developer

з 07.2014 по 09.2017 (3 роки 3 місяці)
VOIS, Other countries (IT)

- Built and maintained small web features using JavaScript/ TypeScript and React.
- Implemented basic REST endpoints in Java/ Spring Boot and Node.js/ Express under guidance from senior engineers.
- Fixed bugs and delivered minor enhancements based on QA and product tickets.
- Added unit tests and updated API documentation to support QA and smoother releases.
- Worked with SQL queries for simple reports, data fixes, and validation tasks.

Освіта

University POLITEHNICA of Bucharest

Information Technology, Other countries
Вища, з 2010 по 2014 (4 роки)

Bachelor's degree in Information Technology

Додаткова освіта та сертифікати

Немає додаткової освіти та сертифікатів.

Знання і навички

  • JavaScript
  • TypeScript
  • Python
  • PHP
  • C#
  • Java
  • Material UI
  • Tailwind CSS
  • Next.js
  • AngularJS
  • Vue.js
  • Nuxt.js
  • Spring boot
  • NestJS
  • FastAPI
  • Django Rest Framework
  • Laravel
  • React Native
  • Flutter
  • Android SDK
  • GraphQL
  • PostgreSQL
  • MongoDB
  • Elasticsearch
  • Kibana
  • AWS
  • Google Cloud Platform
  • CI/CD
  • Microservices
  • WebSocket
  • Golang
  • C/C++
  • SEO

Знання мов

  • Англійська — вільно
  • Румунська — вільно

Додаткова інформація

My goal is to join a strong team where I can grow, take ownership, and deliver real results. I’m highly motivated to build long-term success in my work and contribute to the company’s goals as much as possible.

I always try to think from the company’s side: what brings value, improves the product, and strengthens the team.

telegram: @Dev_K_T
Whatsapp: [відкрити контакти](див. вище в блоці «контактна інформація»)

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