English:
Upper Intermediate
Ukraine
UTC +02:00
Ukraine/Kyiv
Senior Node.js developer
I am a result-oriented developer with 6 years of commercial experience in the IT industry. During this time I have been working with JS and its frameworks as a Node.js Developer. I have experience in developing web apps using Node.js (Express, Koa), Typescript, PostgreSQL, Redis, and WebSockets. I enjoy coming up with original solutions to complicated problems. I am a high performer, keen on technology, always responsible, and eager to learn. I believe in teamwork and I’m always ready to accept challenges.
Want to hire this engineer?
Check if Oleg is availableExpertise
Years of commercial development experience
6 years of experience
Core technologies
Other technologies
Project Highlights
British global retailer
May `22 - Jul `23
1 year
The client is a British global fashion retailer with a chain of high street shops. It was founded in 1969. The chain sells womenswear, menswear, and clothing for teens.
Responsibilities & achievements
● Assistance in all phases of development; ● Design and implementation of REST API; ● Configuring efficient API caching; ● Design and implementation of mock service, which is a representation of mocks for all the 3rd party API. ● Mobile backend for frontend (BFF) development.
Documents e-signing solution
Jan `22 - Apr `22
3 months
Delivered a solution that will enable organizations to implement, save and update the information on their signing authorities in order to later share it with external organizations.
Responsibilities & achievements
Creating the product architecture; Design and implementation of GraphQL API; Creating and working with databases; Creating and working with AWS Lambdas; Deployment of the application on EC2 instance; Configuration CI/CD for the application.
NFT multimedia solution
It’s a pinning service that allows users to host files on the IPFS network.
Responsibilities & achievements
● Assistance in all phases of development; ● Design and implementation of REST API; ● Creating and working with databases; ● Implementing functional requirements (business logic).
SaaS accounting solution
A French company provides a complete solution for accountants and their customers. A huge and complex SaaS product with web and mobile versions. An open and data-driven solution in B2B2C for accountants and accounting companies covering all aspects of bookkeeping – document management system, an internal messaging system similar to Slack, etc.
Responsibilities & achievements
● Rewriting microservices from Sails.js to Koa.js; ● Rewriting chat from HTTP to WebSockets; ● DB queries optimization.
Value, Flow, Quality
An online learning platform that delivers high-quality education to the lifelong learner.
Responsibilities & achievements
● Assistance in all phases of development; ● Design and implementation of REST API; ● Creating and working with databases; ● Implementing functional requirements (business logic).
eWizard platform
A platform empowers Digital Content Factory, making a solid ground for the multivendor environment for both creative agencies and Life Sciences companies to enable smooth organizational transformation.
Responsibilities & achievements
● Assistance in all phases of development; ● Design and implementation of REST API; ● Creating and working with databases; ● Implementing functional requirements (business logic); ● Mentoring others; ● Code review; ● Planning & estimating new features for the team.
Advanced analytic system
An internal system for reporting and data analysis with the SAP Business Warehouse (BW).
Responsibilities & achievements
● Creating and working with databases; ● SAP HANA calculated view development; ● Creating Tableau dashboards; ● Resolving query performance problems.
Education
Higher education in Computer Science
Agency
50-100
GMT+2
Lviv/Ukraine, Chernivtsi/Ukraine
Core Expertise
Industries
E-Commerce & Retail, Banking & Finance, Information services & Technologies, Construction & Real estate, Photo & Video, Travel & Tourism, Healthcare & Medicine, Booking & Rent, Food & Drink, Accounting & Auditing
Want to hire this engineer?
Check if Oleg is available