Vassil Kalkov
DevOps Engineer at Santiment
Plovdiv, Plovdiv, Bulgaria
Summary
🤩
Rockstar🎓
Top SchoolVassil Kalkov is a DevOps-focused backend engineer with 14 years of experience delivering production systems remotely from Plovdiv, Bulgaria. He combines deep Ruby on Rails and PostgreSQL expertise with a strong operational skillset—Ansible, Docker, Prometheus/VictoriaMetrics, Grafana and on-call/alerting design—gained through roles spanning backend, big data and site reliability engineering at Santiment. Vassil has moved between languages and stacks (Elixir, Python, JS) to build data pipelines, blockchain ingestion into ClickHouse, and observability platforms using multi-window burn-rate alerting strategies. Passionate about IoT and time-series tooling, he’s worked with LoRaWAN, InfluxDB/TimescaleDB and node-red, bringing sensor and metrics thinking into backend design. He pairs pragmatic testing habits (RSpec, Chai/Mocha) with a history of open-source Rails work, reflecting a practical, tool-agnostic approach to solving complex production problems.
14 years of coding experience
12 years of employment as a software developer
Spanish language, Spanish language at Lycée 4 Frédéric Joliot- CurieComputer Sciences, Computer Sciences at Technical University of Varna
English, Spanish, Bulgarian
Github Skills (113)
apps-script10
ruby10
google-sheets10
solidus10
synchronize10
cart10
syncthing10
hotel-booking10
api10
currency10
spree10
rails10
marketplace10
oms10
ecommerce10
Programming languages (11)
Github contributions (5)
santiment/eth-receipts-exporter
Sep 2020 - Jan 2023
An exporter for all transaction receipts
Contributions:4 reviews, 16 PRs, 15 pushes in 2 years 3 months
exporterprometheus-exporterreceiptstransactionprometheus
kalkov/dot-files
Jan 2013 - Nov 2022
Contributions:65 commits, 4 PRs, 40 pushes in 9 years 11 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.