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Last update: 01.08.2022

Senior Backend Developer, Software Engineer, BASH, Python, Javascript, AWS, PostgreSQL

Company: ADUK GmbH
Graduation: Information Security Management, Software Development
Hourly-/Daily rates: show
75-85 per Project
Languages: English (Limited professional) | Russian (Native or Bilingual) | Ukrainian (Native or Bilingual)

Attachments

Ivan_CV_07.2022_EN.pdf

Skills

Aspiring Back-end Developer who is experienced in thinking outside the box. Specialize in finding suitable solutions to fit customer needs. Strong in communications, both written and verbal.

Programming languages:
Python Golang, Javascript (ES6) XMLPath/JSONPath SQL, YAML, Bash
Backend Libraries & Frameworks:
FastAPI, Django Flask, aiohttp SQLAlchemy, AWS SAM
Frontend Libraries & Frameworks:
React.js Redux, Vue d3js, bootstrap
Misc & Soft Skills:
  • Agile/Scrum methodology
  • AWS Cloud Developer Associate experienced in bash, cURL and vim
  • experienced K8S/Docker user
  • experienced with PostgreSQL and familiar with MongoDB

Project history

10/2021 - 06/2022
Lead Software Engineer
Project 1
  • Reduce compute capacity requirements for highload application Support OAuth2.0 (RFC 6749) implementation for 60M+ clients


10/2018 - 06/2022
Python Coach
Project 5
  • Train and provide guidance on Python Course Mentoring students


08/2021 - 09/2021
Python Senior Developer
Project 2
  • Reduce compute capacity requirements with serverless functions


12/2020 - 08/2021
Python Tech Lead
Project 3
  • Add multi-arch and multistage build scripts to allow secure build services

  • Migrate python services from x86 to aarch64 CPU arch

  • Migrate 60+ services from Mesos-based cloud to K8S Integrate transaction tracing to existing services

  • Write library for integration python-based-services with Vault by hashicorp

  • Setup CI tools for python libraries

  • Write API-proxy for providing aggregates data via endpoints with strong API-consistency and compatibility

  • Create internal tools to validate API-schema for all AsyncAPI exchanges


02/2019 - 11/2020
Python Software Engineer
Project 4
  • Write crawling bots for different Esports Aggregators Data analysis for professional CS:GO tournaments

  • Work on services with dynamic load (from 0 to 40k rps) Refactor monolith as serverless functions and microservices

  • Support JSON API-targeted serialization library

  • Create a library to seamless integration with spring-boot-based-gateway to get zero-downtime

  • Separate shared service parts as common libraries

  • Created integration tool for a commercial competitive game to provide in-game data for third-party services

  • Extend existing API for logs management

  • Developed application for collect statistics from commercial competitive games


08/2016 - 01/2019
Web Developer
Project 6
  • Train, manage and provide guidance to junior software development staff

  • Maintain the existing applications

  • Cooperate with managers and clients

  • Developed large monolith G2G SPA for Ukrainian budget costs and earnings analysis and further planning

  • Create API for the reporting system


08/2015 - 08/2016
Junior Web Developer
Project 8
  • Wrote service for public data analysis for the Ukrainian budget system

  • Created a corporate blog based on DjangoCMS

  • Wrote middleware for Asterisk PBX and internal CRM

  • Developed a few services for publishing data of the state budget


05/2014 - 08/2015
System Administrator
Project 9
  • Creating scripts for automatic backup

  • Wrote an internal service for notifying clients via email

Other

Not a Freelancer.
Contracted by ADUK GmbH.

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