Dmitriy Kovalev

Software Engineer, Problem Solver, Natural Leader

About Me

I am Dmitriy Kovalev. I am currently located in Amsterdam, Netherlands.

  • Proficient Back-End Software Engineer
  • A natural leader
  • Competitive Programming Enjoyer (participated ACM ICPC, reached regional semi-finals multiple times)
  • Techical Architect:
  I do not currently have any experience on an Arhitect position.
However, I have a solid experience in designing varius complex, scalable solutions in highly loaded projects.

  I enjoy solving complex problems, specifically those that are challenging in terms of designing the solution with a limited set of tools.

TLDR: my work at kolesa.kz & booking.com

<kolesa.kz>
kolesa group consisted of 3 projects: kolesa.kz, krisha.kz, market.kz. All of which are top Kazakhstan's websites.

  • I was a part of "API team" which developed and maintained generalised APIs for all company's projects.
  • Designed and implemented highly available Go services (e.g. to manage user confirmation SMS'es).

<booking.com>
booking.com is the top travel-related project in the world, I hope you heard of it :) what I did/am doing:

  • Leading Content API Modularisation project, modularising and modernising legacy system.
  • Our team introduced 8+ APIs, I designed the majority of them and majorly contributed to 3.
  • Monitor to detect overflowing primary key IDs across all DBs.
  • A Vibe-coded tool to implement a client for one of our APIs.
  • Solution that enabled our partners to gradually (seamlessly) migrate from the old to new API.

etc

Skills & Experience

Languages

Love
  • C++
  • Java
  • Go (golang)
Know
  • PHP
  • Perl
  • C#
  • Pascal :)
Can Do
  • Any (if needs be)

Databases

SQL - Relative
  • MySQL
  • MSSQL
  • SQLite
NoSQL
  • MongoDb
Big Data
  • Hive

Experience

Kazakhstan (2011-2018)
  • Kazakh Research Institute of Ecology and Climate
  • JSC Zhasyl Damu
  • Resmi Companies Group
  • Kolesa.kz (Kolesa Krisha Market common API team)
Netherlands (2018-now)
  • Booking.com

Contact

Links

github (not rly active)

LinkedIn (sometimes checked)

Email

hmmm, secret button?

Message me

News:
  • The site has been updated!
    There is a message form now.

    Created at: 2025-11-25T10:43:10Z

    Views: 281

  • a New new

    Created at: 2025-04-27T16:05:10Z

    Views: 12969

  • Test subject # 1
    + Please note: this is a very very meaningful information.
    Thank you! Yep Yep

    Created at: 2025-04-12T17:44:26Z

    Views: 14468

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