Senior Software Developer | Web, Cloud, Infrastructure | Diverse Skills for Adaptive Challenges
Aktualisiert am 30.01.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.02.2024
Verfügbar zu: 100%
davon vor Ort: 100%
Webentwicklung
AWS
Python
Python
JavaScript
TypeScript
Java
Rust
SQL
Django
REST
Apache Spark
Apache Airflow
ETL
ReactJS
Angular
Tauri
Docker
PostgreSQL
Terraform
Kubernetes
Web3
Substrate
English
fluent
German
basic (learning)
Ukrainian
Muttersprache
Russian
Muttersprache

Einsatzorte

Einsatzorte

Zürich (+50km)
Schweiz
Currently, I'm looking for full-time on-site roles in Switzerland (Zürich, Zug). Additionally, I am open to remote opportunities worldwide, whether on a part-time or full-time basis.
möglich

Projekte

Projekte

1 year
2023-03 - now

Desktop application - digital wallet

Senior Full-Stack Developer TypeScript Rust Tauri ...
Senior Full-Stack Developer

? Developed a desktop application from scratch

? Implemented a toolset to automate operations with EVM chains

? Integrated a secure keystore IOTA Stronghold in order to sign transactions in a
safe way and to secure private keys and seeds in rest
TypeScript Rust Tauri React React Query Tailwind CSS GitHub Actions AWS (Cognito Lambda EC2 S3) IOTA Stronghold Keystore Ankr Infura Ethers.js
1 year 3 months
2021-11 - 2023-01

Platform for governance, fundraising, collectibles

Senior Back-End Developer Rust TypeScript Node.js ...
Senior Back-End Developer
Blockchain, startup. Open source. The platform for governance, fundraising, collectibles
  • Launched a blockchain (ZERO Network) in the Polkadot ecosystem (parachain)
  • Built a prototype with fundraising and governance protocols, NFT reward engine
  • Make architectural decisions and lead architecture meetings
  • Maintain development and staging environments
  • Develop an on-chain logic as well as middleware services (GraphQL indexer, etc.)
  • Expand the team by identifying and bringing on board additional developers
  • After successful seed funding the startup did not reach the series B funding goals due to difficult market conditions
Rust TypeScript Node.js Substrate Polkadot Docker Swarm AWS (CloudFormation EC2) Subsquid Portainer Rancher Grafana Prometheus Graylog
Zero Reality AG
Zürich
1 year 9 months
2020-01 - 2021-09

Data lake hydration pipelines

Lead, Senior Big Data Developer Python Java SQL ...
Lead, Senior Big Data Developer

Assignment 1. Pre-sales. POC. Data lake hydration. Team size: two

  • As part of the pre-sales team, established communication channels with the client and implemented data lake hydration pipelines within strict deadlines of two months, securing a new long-term contract


Assignment 2. Data warehouse pipelines migration. Team size: six

  • Migrated legacy data warehouse pipelines and increased speed by 30% due to code optimization, Glue job executors fine-tuning, and Redshift query priorities changes
  • Lead a team of five developers and conduct client demo sessions

Python Java SQL Airflow Spark Terraform AWS (S3 Glue Athena RDS Redshift Lake Formation) Buildkite Marketing provider APIs
Fanduel, USA
Kyiv
10 months
2019-06 - 2020-03

A virtual glasses try-on AR tool

Full-Stack Developer Python TypeScript Django ...
Full-Stack Developer

Retail, startup. A virtual glasses try-on AR tool

  • Successfully executed a proof of concept with a glasses shop in the center of Kyiv (Gara), thanks to the efficient and fast (6 weeks) implementation of the AR try-on tool and the admin website
  • Design architecture and build core functionality

Python TypeScript Django Angular Web Assembly OpenCV
Zirity
Kyiv
1 year 3 months
2018-10 - 2019-12

Data analytics API, Big Data, ETL

Back-End Developer Python Java SQL ...
Back-End Developer

FinTech, enterprise. Data analytics API

  • Improved productivity of Data Analysts by developing an API to simplify the process of running Spark jobs on a Spark/Hadoop cluster
  • Increased the pipeline execution speed of the production cluster by 30% through the enabling of dynamic Spark worker allocation
  • Implemented an API to manage AWS IAM roles and policies, IAM federation

Python Java SQL Spring Hibernate Spark Hadoop Solr HBase Cassandra AWS (IAM Lambda API Gateway EC2)
Deloitte
Kyiv
9 months
2017-11 - 2018-07

Sports analytics, startup. Web scrapers, admin panel

Back-End Developer Python JavaScript Django ...
Back-End Developer

Sports analytics, startup. Web scrapers, admin panel

  • Enhanced Operator efficiency throughout building an admin website (before they were using Django admin panel with reduced functionality and scalability)
  • Improved the efficiency of web crawlers/parsers by around ten times, achieved through benchmarking and the incorporation of regular expressions

Python JavaScript Django PostgreSQL Redis AWS (EC2 Lambda S3 Route53) Docker Swarm Terraform GitlabCI Graylog
Sportech LLC
Kyiv
2 years 1 month
2015-07 - 2017-07

Algorithmic arbitrage trading system, bots, automation

Founder, Full-Stack Developer Python JavaScript Django ...
Founder, Full-Stack Developer

Sports analytics, startup. Algorithmic arbitrage trading system, bots, automation

  • Built an economically beneficial and profitable system after multiple failures and redesigns
  • Design architecture and build core functionality
  • Expand the team by identifying and bringing on board additional developers

Python JavaScript Django Bootstrap HTML CSS Selenium Redis PostgreSQL AWS (EC2 Lambda API Gateway) Docker Elasticsearch Kibana
on request
Kyiv

Aus- und Weiterbildung

Aus- und Weiterbildung

2005 - 2010:

Electromechanics, Automation and Electric Drive

Master of Electromechanics

Poltava National Technical University, Ukraine


CERTIFICATIONS

2023:

Professional Java 17 SE Dev.

Oracle


2020:

Associate Solutions Architect

Amazon Web Services


2020:

Big Data - Specialty

Amazon Web Services

Kompetenzen

Kompetenzen

Top-Skills

Webentwicklung AWS Python Python JavaScript TypeScript Java Rust SQL Django REST Apache Spark Apache Airflow ETL ReactJS Angular Tauri Docker PostgreSQL Terraform Kubernetes Web3 Substrate

Produkte / Standards / Erfahrungen / Methoden

TECH STACK

  • Python
  • TypeScript
  • Rust
  • Cloud, Infra
  • Java
  • Django, Airflow
  • React, Node.js
  • Substrate, Tauri
  • AWS, Terraform
  • Spark, Spring Boot

Einsatzorte

Einsatzorte

Zürich (+50km)
Schweiz
Currently, I'm looking for full-time on-site roles in Switzerland (Zürich, Zug). Additionally, I am open to remote opportunities worldwide, whether on a part-time or full-time basis.
möglich

Projekte

Projekte

1 year
2023-03 - now

Desktop application - digital wallet

Senior Full-Stack Developer TypeScript Rust Tauri ...
Senior Full-Stack Developer

? Developed a desktop application from scratch

? Implemented a toolset to automate operations with EVM chains

? Integrated a secure keystore IOTA Stronghold in order to sign transactions in a
safe way and to secure private keys and seeds in rest
TypeScript Rust Tauri React React Query Tailwind CSS GitHub Actions AWS (Cognito Lambda EC2 S3) IOTA Stronghold Keystore Ankr Infura Ethers.js
1 year 3 months
2021-11 - 2023-01

Platform for governance, fundraising, collectibles

Senior Back-End Developer Rust TypeScript Node.js ...
Senior Back-End Developer
Blockchain, startup. Open source. The platform for governance, fundraising, collectibles
  • Launched a blockchain (ZERO Network) in the Polkadot ecosystem (parachain)
  • Built a prototype with fundraising and governance protocols, NFT reward engine
  • Make architectural decisions and lead architecture meetings
  • Maintain development and staging environments
  • Develop an on-chain logic as well as middleware services (GraphQL indexer, etc.)
  • Expand the team by identifying and bringing on board additional developers
  • After successful seed funding the startup did not reach the series B funding goals due to difficult market conditions
Rust TypeScript Node.js Substrate Polkadot Docker Swarm AWS (CloudFormation EC2) Subsquid Portainer Rancher Grafana Prometheus Graylog
Zero Reality AG
Zürich
1 year 9 months
2020-01 - 2021-09

Data lake hydration pipelines

Lead, Senior Big Data Developer Python Java SQL ...
Lead, Senior Big Data Developer

Assignment 1. Pre-sales. POC. Data lake hydration. Team size: two

  • As part of the pre-sales team, established communication channels with the client and implemented data lake hydration pipelines within strict deadlines of two months, securing a new long-term contract


Assignment 2. Data warehouse pipelines migration. Team size: six

  • Migrated legacy data warehouse pipelines and increased speed by 30% due to code optimization, Glue job executors fine-tuning, and Redshift query priorities changes
  • Lead a team of five developers and conduct client demo sessions

Python Java SQL Airflow Spark Terraform AWS (S3 Glue Athena RDS Redshift Lake Formation) Buildkite Marketing provider APIs
Fanduel, USA
Kyiv
10 months
2019-06 - 2020-03

A virtual glasses try-on AR tool

Full-Stack Developer Python TypeScript Django ...
Full-Stack Developer

Retail, startup. A virtual glasses try-on AR tool

  • Successfully executed a proof of concept with a glasses shop in the center of Kyiv (Gara), thanks to the efficient and fast (6 weeks) implementation of the AR try-on tool and the admin website
  • Design architecture and build core functionality

Python TypeScript Django Angular Web Assembly OpenCV
Zirity
Kyiv
1 year 3 months
2018-10 - 2019-12

Data analytics API, Big Data, ETL

Back-End Developer Python Java SQL ...
Back-End Developer

FinTech, enterprise. Data analytics API

  • Improved productivity of Data Analysts by developing an API to simplify the process of running Spark jobs on a Spark/Hadoop cluster
  • Increased the pipeline execution speed of the production cluster by 30% through the enabling of dynamic Spark worker allocation
  • Implemented an API to manage AWS IAM roles and policies, IAM federation

Python Java SQL Spring Hibernate Spark Hadoop Solr HBase Cassandra AWS (IAM Lambda API Gateway EC2)
Deloitte
Kyiv
9 months
2017-11 - 2018-07

Sports analytics, startup. Web scrapers, admin panel

Back-End Developer Python JavaScript Django ...
Back-End Developer

Sports analytics, startup. Web scrapers, admin panel

  • Enhanced Operator efficiency throughout building an admin website (before they were using Django admin panel with reduced functionality and scalability)
  • Improved the efficiency of web crawlers/parsers by around ten times, achieved through benchmarking and the incorporation of regular expressions

Python JavaScript Django PostgreSQL Redis AWS (EC2 Lambda S3 Route53) Docker Swarm Terraform GitlabCI Graylog
Sportech LLC
Kyiv
2 years 1 month
2015-07 - 2017-07

Algorithmic arbitrage trading system, bots, automation

Founder, Full-Stack Developer Python JavaScript Django ...
Founder, Full-Stack Developer

Sports analytics, startup. Algorithmic arbitrage trading system, bots, automation

  • Built an economically beneficial and profitable system after multiple failures and redesigns
  • Design architecture and build core functionality
  • Expand the team by identifying and bringing on board additional developers

Python JavaScript Django Bootstrap HTML CSS Selenium Redis PostgreSQL AWS (EC2 Lambda API Gateway) Docker Elasticsearch Kibana
on request
Kyiv

Aus- und Weiterbildung

Aus- und Weiterbildung

2005 - 2010:

Electromechanics, Automation and Electric Drive

Master of Electromechanics

Poltava National Technical University, Ukraine


CERTIFICATIONS

2023:

Professional Java 17 SE Dev.

Oracle


2020:

Associate Solutions Architect

Amazon Web Services


2020:

Big Data - Specialty

Amazon Web Services

Kompetenzen

Kompetenzen

Top-Skills

Webentwicklung AWS Python Python JavaScript TypeScript Java Rust SQL Django REST Apache Spark Apache Airflow ETL ReactJS Angular Tauri Docker PostgreSQL Terraform Kubernetes Web3 Substrate

Produkte / Standards / Erfahrungen / Methoden

TECH STACK

  • Python
  • TypeScript
  • Rust
  • Cloud, Infra
  • Java
  • Django, Airflow
  • React, Node.js
  • Substrate, Tauri
  • AWS, Terraform
  • Spark, Spring Boot

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