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Vitalii S.
Last update: 19 Feb 2019
Senior Java/Big Data Developer
Senior Java/Big Data Developer with 7+ years of experience in software programming. Strong knowledge of SQL and NoSQL databases, PostgreSQL, MySQL, MongoDB, also familiar with Hadoop and memSQL. Has good communication skills, goal-oriented, perfect team-player.
All rates are indicative, annual rate includes 20% discount
20% discount on yearly basis
Usually responds within 1 hour
GMT+2 East Europe


Industry Experience

Beauty & Personal Care, Advertising & Marketing, Education & Science, Internet & Telecom

Product Experience

Business intelligence software solutions, Big Data Analytics system


Aug `17 – Jan `19

1 year

Business Intelligence Solution

Full-stack Developer/Architect

The project was originally intended as a search engine (a-la Algolia), and later evolved into BI tool which supports ETL-like flow: registering (or uploading) arbitrary data source (including SQL and NoSQL DBs, CSV, XML, XLS, JSON etc), extracting data from it, then transforming data by applying functions (transform columns, aggregate and sort data, drill down etc) and finally downloading results in arbitrary format or sharing results in form of embedded widgets.

Technologies Stack:

Clojure Java Angular 1x


Business intelligence software solutions

Dec `16 – Aug `18

1 year

Reporting Module for SaaS

Tech Lead

The project is reporting module for the application. Then-current system was not able to manage the data and was not meeting the client's expectations. Result: Fast report building (1400 stores/week - 23 seconds); Accuracy - 100% according to provided info (code snapshot, database snapshot and URL with report).

Technologies Stack:

AngularJS Express.js Node.js


Beauty & Personal Care


Big Data Analytics system, Business intelligence software solutions

Sep `14 – Dec `16

2 years

Online Marketing Platform

Senior Developer

The company is a young data-driven eCommerce start-up helping consumers worldwide discover relevant products and make better shopping decisions. Their solutions optimize every step of the consumer’s purchase path by adopting data analysis and predictive analytic technologies.

Technologies Stack:

Cassandra Google AdWords Java MongoDB PostgreSQL Spring RabbitMQ


Advertising & Marketing

Aug `13 – Sep `14

1 year

Collaborative Educational Solution

Senior Backend Developer

The interactive platform is an educational project, similar to Google Docs and Google Presentation. It is a convenient tool for educators that makes it easier for teachers to provide interesting, interactive lesson materials: text, slides and lectures, supports collaborative creation and import of educational materials from PDF files.

Technologies Stack:

AWS Hibernate Java Spring


Education & Science

Aug `13 – Jan `12

1 year

Distributed Monitoring System of Optical Fiber

Backend Developer

The client specializes in software development for telecommunication operators, government companies and other industrial sectors. The client delivers a range of integrated products, that allow clients to automate and control service providing processes, manage their efficiency and profitability.

Technologies Stack:

Hibernate Java PostgreSQL Spring HBase JSX Hadoop


Internet & Telecom


Zaporizhzhya National Technical University

MA in Computer Science

Web Development Services agency #550



Education & Science, Business & Productivity, Information services & Technologies, Construction & Real estate, Social Media & Communication, Big Data

FreshCode is a Europe-based software development company, founded in 2014. The goal-oriented and motivation-driven team provides you with IT services of any difficulty either you are a small, medium or large scale business. FreshCoders completed 100 projects for customers in USA, Canada, Germany, Denmark, Israel, Australia, etc. You can take advantage of the full-range end-to-end services for the development and maintenance of web, mobile or desktop application. If you are looking for the implementation of SaaS, ERP, CRM, you can freely ping us with your request. You can always contact us in case you are not sure about your new venture or need an audit for your current solution. You will be taken care of by a highly-qualified team of managers and developers to bring to life your most ambitious ideas. Extensive business experience will help you achieve your goals in the shortest possible way and put your business to work.


Senior JavaScript Developer
Senior JavaScript developer with 7+ years of experience in software programming. Strong knowledge of Node.js, Angular.js, Vue.js also familiar with React.js. Has good communication skills, goal-orient...
5 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 19 Feb 2019