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followers: 197.0 following: 198.0 repos: 166.0 gists: 31.0

Name: Konstantin Gredeskoul

Type: User

Company: @pioneerworks @ReinventONE @wanelo @fossas @bazelruby

Bio: Ex-Staff Engineer @ Coinbase & FOSSA, 4x CTO of VC-funded startups. Scaling ● DevOps ● Ruby ● Bazel ● Mentor ● Speaker Wanelo, Coinbase, ModCloth, Blurb, Topica

Twitter: kig

Location: San Francisco, CA

Blog: https://kig.re/

What's up, I'm Konstantin

Twitter • Blog • Talks • DEV • Medium • LinkedIn • Stack Overflow • Mastodon

About Me

🌏 I live in San Francisco, California, USA, but I often visit Melbourne, Australia, where I got my Mathematics degree (at Monash University) and where my family lives.
🔭 I maintained the open source rules_ruby for Bazel, and now helping with the canonical ruby rules.
📫 How to reach me: @kig

Industry Experience

I've been a technical, hands-on CTO and VP of Engineering for at least five times.
I recently helped refine the VC pitch for Made Technologies
Before that, I was a Staff Software Engineer for HealthSherpa.
Before that, I was a Staff Software Engineer at Coinbase and Fossa.
In 2012-2015 I was a CTO at Wanelo, which was a Rails site that:
1. Was wholly rewritten from a Java/JSP prototype with 100K lines of code and no tests to a 10K line of a Rails app with 98% test coverage in 2 months with six people pairing full time.
2. Our Java codebase crashed at 3K RPMs, but once we migrated to Rails, our traffic skyrocketed about 100x in six months, reaching the peak traffic of 300,000 RPMs at an average latency of about 100m.
3. We won TechCrunch Disrupt and were installed on about 50% of all teenage phones.
4. At Wanelo, we had to shard our PostgreSQL database, use RabbitMQ for asynchronous and decoupled communications, and open source many of our adapters as ruby gems.

Ruby

I am a big open-source proponent, and I wrote about a few dozen open-source Ruby gems with over 120M downloads.

Among the most popular gems are:

colored2 — ASCII color ruby gem
sym — Symmetric encryption vi CLI or API based on OpenSSL
simple-feed - Redis based backend for Twitter-like Social Networks with constant read time
puma-daemon — Puma daemonization library

DevOps, Build, and Systems Configuration

I do a lot of Infrastructure and Scalability work, so among my other projects are:

C++/CMake Project Template with Google Test library
Bazel/Starlark Projects including Rules Ruby.
BASH Projects.

Music

I play piano, guitar and drums.

I've been DJ-ing since the vinyl days (house, tech-house, progressive, techno, downtempo)

My DJ name is LeftCtrl

I also have been composing and producing electronic music for over 20 years,

Hardware Projects

I have also written projects in C/C++ for Arduino platform.

Some of my popular projects and posts are:

BORAT — Bathroom Occupancy Remote Awareness Technology
Autonomous Obstacle Avoidance Library for DC motors or Servo Motors.
How to use arduino nano mini pro with ch340g on Mac OS-X

Based on the template by Phil Nash.

Konstantin Gredeskoul's Projects

[WIP] Boxbot is a from the ground-up rewrite of the laser-cutter gem with some additional features planned. It generates templates meant to be used by a laser cutter to cut out a 3D box with matching tabs that allow the box to be "snapped into place" without screws, although screws can also be added.

boxes

Python module for generationg SVG plots for laser cutting boxes

boxmaker

The engine underneath http://boxmaker.rahulbotics.com/. Give us dimensions, and we'll generate a PDF you can use to cut a notched box on a laser-cutter.

cache-object

It's an object, and it caches itself.

carrierwave

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

ccspec

C++'s RSpec: macro-free TDD and BDD power for C++11.

chef-solr

Chef cookbook for solr.

cloud-kitchens-dispatch

Simulation of Order fulfillment in a Restaurant Kitchen

cmake-ccspec-template

CMake C++ project template that uses ccspec for unit testing, instead of Google Test library.

cmake-project-template

This project is aimed at jump-starting a C/C++ project that can build libraries, binaries and have a working unit test suite. It uses CMake build system and is deliberately completely minimal.

coin

An absurdly simple DRb based in-memory cache

colored2

112M downloads and counting! ANSI colors in your terminal, simple as it can be. An updated and maintained fork of the original gem "colored" by @defunkt

config

Easiest way to add multi-environment yaml settings to Rails, Sinatra, Pandrino and other Ruby projects.

cookbook-auto-updater

This Cookbook performs several operations on a newly provisioned Ubuntu machines to prepare them for server-side operation. It includes setting the timezone, and performing smart unattended update of all system packages and kernels, possibly requiring reboot.

cookbook-dnsmadeeasy

DNS record management cookbook for automatically registering nodes with DnsMadeEasy provider.

cookbook-logrotate-s3

Rotate logs to S3 using logrotate and s3cmd

cookbook-pgbouncer-service

Installs pgBouncer from either sources or packages, configures the connections, and sets up a service.

cookbook-set-hostname

Why is not part of Chef? I have no idea. But here is how you can set your hostname correctly, and with FQDN. The hostname is set based on the specified domain name. Supports SmartOS, Ubuntu and CentOS.

datadog-integrations

This includes the /datadog folder with various config files for integrations.

delicious-library-3-cloud-sync

A simple shell script so that the data files used by Delicious Library 3™ software for Mac made by Delicious Monster Software can be shared across multiple computers in your possession.

devops-docs

DevOps documentation

dnsmadeeasy

A full-featured API client for managing DNS records hosted by DnsMadeEasy.com via their REST SDK v2. A powerful CLI command "dme" is installed for those script-centric. Ruby SDK is provided for those needing the integrate at deeper level.

dnsmadeeasy-rest-api

Easy to use and well tested Ruby REST API Client for DNS Made Easy (V2.0)

drb-cache

DRb::Cache is a ruby gem that offers a shared multi-process cache by transparently managing a DRb server process on the background.

dupervisor

This library converts config files between – YAML, JSON and Windows INI file format. For example, supervisord uses INI file format. Using the gem you can configure supervisord via a YAML file, and generate INI as needed. DuperVisor installs `dv` CLI converter. Run `dv -h` for help.