Hi there!
My name is Sergey and I’m a backend engineer and DevOps.

• Location: Moscow, Russia
• Languages: Russian, English
• Speciality: Backend development, DevOps, monitoring/observability
• Hobbies: Making music, volunteering, taking pictures, travelling

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My skills

I’ve worked with the following things during my career:

• Go
• JavaScript
• Java
• Docker
• Databases: PostgreSQL, MongoDB, Redis
• Monitoring: Prometheus + Grafana
• Logging: ElasticSearch + Logstash + Kibana + Filebeat
• Operating Linux web servers

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My experience

Railsmob | Backend Developer | March 2016 - October 2016

• Developing backend for a few projects using Ruby on Rails + PostgreSQL

InLab | Backend Developer | March 2017 - June 2018

• Developing backend for a few services using Node.js + MongoDB
• Maintaining a push notifications delivery service containing a few microservices

NeuroCity | Backend Developer | August 2018 - February 2019

• Developing a REST API for advertisements system
• Helping writing Electron desktop application for showing advertisements

AEGEE | Backend Developer/DevOps | ~October 2016 - present

• Developing microservices for an NGO having more than 13k members on a voluntarily basis
• Managing deploy scripts and CI
• Managing monitoring solutions (Grafana + Prometheus) and logging solutions (ELK)

Yandex | Backend Developer | March 2019 - June 2022

• Developing backend for Yandex.Zen using Node.js (earlier) and Java (nowadays)
• Setting up monitoring and observability using our own internal tools and some external ones (ELK/Grafana/Graphite)
• Writing some scripts for release process in python3

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My projects

Here’s some projects I’ve worked on and opensourced:

• solarlabsteam/cosmos-exporter - a Prometheus scraper for Cosmos-based blockchain taking data from a blockchain full-node
• solarlabsteam/missed-blocks-checker - a tool to monitor validators' missed blocks on a Cosmos-based blockchain and send it to Telegram or Slack
• solarlabsteam/cosmos-transactions-bot - a tool to listen for new transactions with specific filters on a Cosmos-based blockchain and to send them to Telegram or Slack
• solarlabsteam/cosmos-interacter - a Telegram bot to get info from a Cosmos-based blockchain
• solarlabsteam/tendermint-exporter - yet another Prometheus exporter for those operating a full node on Cosmos-based blockchain
• freak12techno/grafana-interacter - a Telegram bot to interact with your Grafana or Alertmanager instance
• freak12techno/cosmos-proposals-checker - a tool to notify you if you haven't voted on a proposal in voting period
• freak12techno/cosmos-wallets-exporter - a Prometheus scraper to fetch wallets balances to build alerts upon

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Contacts

If you want to contact me, you can do it here:

And if you appreciate what I’m doing you can send me some tokens to buy me a coffee or something:

• Cosmos
• Sentinel
• Osmosis