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Nikita – Node.js, Typescript, Express.js, experts in Lemon.io

Nikita

From Ukraine (UTC+3)

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Senior Back-End Web Developer
8 years of commercial experience
Adtech
Business intelligence
Dating
E-commerce
Energy
Hospitality
Maritime
Marketing
Renewable energy
Sales
Social media
Tourism
Travel
Enterprise software
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Nikita – Node.js, Typescript, Express.js

Experienced senior back-end web developer with in-depth knowledge of JavaScript and TypeScript, as well as significant experience with Node.js. Customer-oriented and committed to delivering excellent results. Eager to learn and open to new challenges. Nikita is not a big fan of meaningless talk; he prefers to communicate through his work and results.

Main technologies
Node.js
5 years
Typescript
1 years
Express.js
4 years
Nest.js
1 years
Additional skills
MongoDB
PostgreSQL
Redis
Docker
Microsoft SQL Server
Cassandra
React
AWS
Ready to start
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Potentially possible
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Experience Highlights

Back-end Developer
Jan 2022 - Oct 20228 months
Project Overview

It is an e-commerce platform for coaches, agencies and influencers to increase their sales in a comfortable and automated way

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Responsibilities:
  • Implemented multiple key features of a system, like new payment methods, rescheduled payments, subscriptions, reports generation, backoffice features
  • Refactored a big part of key omponents (payments, webhooks logic)
  • Implemented a mechanism for synchronizing data between Stripe and the internal DB
  • Improved security and stability of the application by securing webhooks, integrating Sentry, adding AWS logs and SonarCloud
  • Did technical interviews and onboarding of new devs.
Project Tech stack:
Node.js
Nest.js
Typescript
PostgreSQL
Stripe API
AWS
Back-end Developer
Oct 2020 - Feb 20221 year 3 months
Project Overview

It is an international company providing business solutions for oil/gas, renewable energy and maritime industries.

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Responsibilities:
  • designed architecture for both Importer and Validator
  • implemented 90% of Importer and Validator functionalities
  • implemented 50% of Carburization functionality
  • made different profiling features (grafana dashboards, benchmarks) for a number of applications
  • provided a proper (80-90%) coverage for applications described above
Project Tech stack:
Node.js
Express.js
Typescript
PostgreSQL
Microsoft SQL Server
Docker
Back-end Developer
Jun 2019 - Oct 20201 year 4 months
Project Overview

It is a worldwide hospitality system. It provides places to live and co-work. Most hotels are located in South America.

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Responsibilities:
  • rewrited old monolith express.js application to a nest.js microservices structure
  • designed app and database architecture for residency service
  • implemented 90% of a residency service backend with according requirements from PM, PO and tech lead
  • implemented 50% of a loyalty service business logic
  • implemented 100% of a geo service
  • did a proper (80-90%) units coverage for all of the services listed
  • mentored onboarding developers
Project Tech stack:
Node.js
Nest.js
Typescript
PostgreSQL
MongoDB
Redis
Docker
Back-end Developer
Nov 2017 - Aug 20191 year 9 months
Project Overview

A system for an effective user distribution across different dating websites.

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Responsibilities:
  • implemented ~50% of Schemas, Filters and Clients services, along with a proper units/integration coverage
  • designed an architecture for external clients communications
  • new developers mentoring
  • was taking a lead role within multiple business epics
Project Tech stack:
Node.js
Express.js
MySQL
MongoDB
Redis
Cassandra
Docker
Front-end developer
Feb 2017 - Oct 20178 months
Project Overview

It is a web application that allows users to get information about tourism in the Dnipropetrovsk region of Ukraine

Main features Nik has worked on:

  • Multiple pages design
  • UI/UX
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Responsibilities:
  • developed a frontend part for an application
  • integrated a Google Maps API into the project
  • discussed frontend design with designers, along with implementing it
Project Tech stack:
React
HTML
CSS

Education

2018
Computer science
Bachelor

Languages

English
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