Tomas Kazemekas

5.0

(2 reviews)

US$15.00

For every 15 mins

Sessions/Jobs

First 15 mins free for your first session

ABOUT ME

Data and Web Developer

Full stack data and web developer making custom data analysis and machine learning applications for clients in telecommunications, investment management, trading, network management and other data-intensive fields. My main working languages are Python, Scala, and Matlab. I my recent job I have been developing new features on Apache Spark, Kafka and HDFS based platform used by NASDAQ listed company.

Currently, am working as a software developer contractor for international clients and startups. My client list includes Viavi Solutions, Indeni, Kapital Trading, Global Algorithmic Institute, Aequam Capital, Vytautas Magnus University and others.

From 2016 I am holding Top Rated Contractor status on the leading contracting platform Upwork. I also have a 5 star rating on Codementor mentoring platform.
Currently, I am in the top 9 percent of contributors on Stack Overflow for this year.

I have completed all the courses of the Business Informatics master program at Vilnius University as one of the top students in the class and currently am finishing the master thesis on the application of blockchain technology in the energy field.

Working proficiency in English, Portuguese, Russian and Lithuanian.

Looking for new software development challenges in data-intensive fields: trading, quantitative finance, telecommunications, energy or blockchain.

Lithuanian, Portuguese, Russian, English

Vilnius (+02:00)

Joined December 2015

EXPERTISE

Python

8 years experience | 1 endorsement

I have been developing custom applications for clients in trading, investment management and other data intensive industries.

Apache Spark

3 years experience

Have developed solutions for custom based applications for international clients using both Scala and Python.

Apache Kafka

MongoDB

2 years experience

I have used MongoDB in several projects. I have also completed with a highest grade a course for developers from MongoDB University.

Querying Performance Optimization Database sharding

Querying Performance Optimization Database sharding Reporting Aggregation Management PyMongo Python API

Interactive brokers api

5 years experience

have been developing algorithmic trading and backtesting applications with Python for many international clients. For example I have con...

have been developing algorithmic trading and backtesting applications with Python for many international clients. For example I have consulted on Interactive Brokers API solutions for one well known algorithmic trading research institute based in New York.

MATLAB

Algorithmic trading

5 years experience

have been developing algorithmic trading and backtesting applications with Python for many international clients. For example I have con...

Portfolio optimization Python Backtesting

Portfolio optimization Python BacktestingOrder bookOrder executionHistoric dataTrading strategyMarket making

Scala

3 years experience

Data Focused Software developer using Scala for data extraction, Spark operations

Apache Spark

Django

5 years experience

My latest app with Django was a solution for a scientific conferenceorganized by a university. It included info about the subject, abstra...

My latest app with Django was a solution for a scientific conferenceorganized by a university. It included info about the subject, abstract submission,participant registration and sponsor info display.

Python 3 Python Django forms

Python 3 Python Django forms Bootstrap Virtualenv Nginx PostgreSQL

REVIEWS FROM CLIENTS

5.0

(2 reviews)

Keven Rosario

October 2019

very knowledgable and patient. session passed without a hitch.

Stella L

December 2016

Tomas was incredibly helpful! He was very understanding, fair, and patient. When I need coding assistance I will definitely contact him as a mentor again. Words cannot express how grateful I am for his help. Tomas is the absolute best!

SOCIAL PRESENCE

GitHub

bokeh_candlestick_2in1_demo

Description and fragments of a Python app to generate price and volume data graphs on the same plot using Bokeh. The purpose of this repo is to showcase my portfolio of apps for clients and to provide examples of the code.

Python

py_pdf_parser_demo

Description and fragments of a Python 3 application to extract the required data form a asset price data stored in a table on a PDF file. The purpose of this repo is to showcase my portfolio of apps for clients and to provide examples of the code.

Python

Stack Overflow

4480 Reputation

EMPLOYMENTS

Data Software Developer

Independen Contractor on Upwork

2013-01-01-Present

I am a Top Rated freelancer on the Upwork platform developing data intensive solutios for international cleints in fianace, education and...

I am a Top Rated freelancer on the Upwork platform developing data intensive solutios for international cleints in fianace, education and network management industries.

Scala

MongoDB

PostgreSQL

Scala

MongoDB

PostgreSQL

Pandas

Python 3

MATLAB

Blockchain

Software Developer

Telesoftas

2018-10-01-2019-12-01

Developing innovative software solutions for a NASDAQ listed client providing mobile telecommunications management and monitoring softwar...

Developing innovative software solutions for a NASDAQ listed client providing mobile telecommunications management and monitoring software solutions. The activities were backend focused, new feature development with a share of critical bug fixing. The main programming languages were Scala and Python. The tool stack mainly consisted of Apache Spark, Kafka, HDFS, SQL.

Python

SQL

Scala

Python

SQL

Scala

Apache Spark

Apache Kafka

Apache Hadoop

PROJECTS

Network Monitoring and Remediation Software Metrics Extraction for Knowledge DB View Project

2019

Extraction of metrics, categories, alert remediation and automation data from the code base . Knowlege data base generation for the web.

Python

Scala

Regex

Python

Scala

Regex

Pandas