Олександр

Back-end, Node.js, Web developer, 60 000 UAH

Employment type: full-time, part-time
Age: 45 years
City of residence: Kremenchuk
Ready to work: Remote
Employment type:
full-time, part-time
Age:
45 years
City of residence:
Kremenchuk
Ready to work:
Remote

Contact information

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Work experience

Back End Developer

from 06.2023 to 12.2025 (2 years 7 months)
TlvGenerator, Дистанційно (IT)

Architected and implemented RESTful APIs with high load
Development of core back-end services using Node.js and TypeScript or JavaScript
Optimized database queries in MongoDB, reducing response times by 30%.
Integrated 3rd party services (Payment gateways, CRM systems, Auth providers) using secure OAuth2 and JWT protocols.
Mentored junior developers, conducted code reviews, and enforced high coding standards across the team.
Managed application deployment and infrastructure on AWS EC2, including instance configuration, environment setup, and performance monitoring.
Integrated AWS S3 buckets for storing and serving static assets and large datasets efficiently.

Back end програміст

from 09.2022 to 06.2023 (10 months)
ToolBelt, Дистанційно (IT)

Designed and maintained microservices using Node.js and TypeScript.
Working with a database MySQL
Managed application deployment and infrastructure on AWS EC2, including instance configuration, environment setup, and performance monitoring.
Containerized applications using Docker, streamlining the development and deployment processes.

Backend Node Developer

from 03.2021 to 09.2022 (1 year 7 months)
tlvGenerator, Дистанційно (IT)

Development of core back-end services using Node.js and TypeScript or JavaScript.
Building MVP versions of web applications using Express.js and MongoDB
Utilized AWS Lambda for processing real-time data streams and automating back-end workflows.
Managed application deployment and infrastructure on AWS EC2, including instance configuration, environment setup, and performance monitoring.
Integrated AWS S3 buckets for storing and serving static assets and large datasets efficiently.

Back-end developer

from 12.2019 to 03.2021 (1 year 4 months)
Beetroot, Кременчук (IT)

Development of core back-end services using Node.js and TypeScript or JavaScript.
Building MVP versions of web applications using Express.js and MongoDB
Developed administrative dashboards and internal tools for data management.
Containerized applications using Docker, streamlining the development and deployment processes

Back-end Developer

from 08.2018 to 12.2019 (1 year 5 months)
ONLINICO, Кременчук (IT)

Development of core back-end services using Node.js and TypeScript or JavaScript.
Building MVP versions of web applications using Express.js and MongoDB
Developed administrative dashboards and internal tools for data management.
Building MVP versions of web applications using PHP and MySQL.

Інженер-програміст

from 08.2016 to 08.2018 (2 years)
Regis, Кременчук (Автобізнес та автосервіс)

Підтримка та розробка нового функціоналу у WEB - Системі GPS моніторингу автомобільного транспорту

Старший інженер Сервісного центру

from 06.2011 to 04.2016 (4 years 11 months)
Телекомунікації та зв'язок, компанія "Інтертелеком", Кременчук (Телекомунікації, зв'язок)

контроль ремонту CDMA обладнання, ведення документації, контроль обслуговування оргтехніки.

Відповідальний інженер

from 06.2010 to 06.2011 (1 year)
Компанія "Інтертелеком", Кременчук (Телекомунікації, зв'язок)

Ремонт CDMA обладнання, обслуговування оргтехніки

Инженер-программист

from 11.2007 to 06.2010 (2 years 8 months)
Компания "Интертелеком", Кременчуг (Телекоммуникации, связь)

Программирование оборудования CDMA

Програміст

from 08.2004 to 08.2005 (1 year)
ЧП "ВЛАН", Кременчук (Будівництво, архітектура, дизайн інтер'єру)

Обслуговування обладнання, налаштування службових програм

Education

Інститут Економіки та нових Технологій

Інформаційні технології проектування, Кременчук
Higher, from 2003 to 2008 (5 years)

Knowledge and skills

  • Windows
  • Пользователь ПК
  • Linux
  • Ремонт ПК
  • Web-разработка проектов
  • MySQL
  • Node.js
  • Git
  • TypeScript
  • JavaScript
  • WordPress
  • AWS
  • Lambda
  • Amazon S3
  • MongoDB
  • Mongoose
  • Twillio
  • Express.js
  • TypeORM
  • Bitbucket
  • Написання промптів для ChatGPT
  • Bootstrap
  • Адаптивність
  • Microservices

Language proficiencies

English — average

Additional information

Experienced Back-End Developer with 10 years of experience specializing in building scalable and efficient server-side applications using Node.js and JavaScript or TypeScript. Specialist in designing RESTful APIs and database management. Lots of practice in to optimize application performance and implement secure, high-load systems. I stick to writing clean, maintainable, and well-tested code.

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