Kirill Erokhin

Kirill Erokhin

Mentor
5.0
(231 reviews)
US$25.00
For every 15 mins
773
Sessions/Jobs
ABOUT ME
Sr. DevOps & Full-Stack, ex-IBM, Waterloo CS, 15+ years of experience (since 2008)
Sr. DevOps & Full-Stack, ex-IBM, Waterloo CS, 15+ years of experience (since 2008)

I teach Operating Systems to CS students and guide fellow professionals through legacy codebase maintenance, practical software architecture, and new language/framework learning skills.

For students, I offer two types of sessions - one is a lecture-style session where I can go over course notes/slides on a particular topics and offer additional explanations and examples to improve your understanding of the material. Another type is an assignment take-up session where I can go over a past assignment and guide you through steps to solving it.

For working professionals, I offer the following options:

  • Focused problem-solving sessions - if you have a particular issue that you're stuck with in a project you're working on, I can pair with you over Zoom screen-sharing

  • Code review - if you cannot understand how to work with part of your codebase or if you'd like a second opinion on work that you've just completed, I can pair with you over Zoom and do a live code review and/or prepare ahead of time and go over my findings on a call

  • Long-term mentorship - if you would like to learn some more fundamental skills or pick up a framework/design pattern/best practices, I can develop a custom-tailored learning plan that fits your skill level and schedule and offer regular teaching sessions with optional take-home exercises

A bit about me

I am a tech founder and a senior polyglot/full-stack developer, with a passion for teaching and mentorship. In a bit of spare time from my work, I am looking to help fellow software developers get more comfortable with our craft and exercise my teaching skills while I'm at it.

So far, I've done a wide range of work - web app front-end and back-end, data pipelines at scale, DevOps/infrastructure, mobile (quite a bit of iOS and previously some Android) and some security. I have a reasonable taste for UI design and user experience, despite that not being my primary specialization.

The industries I've worked in so far were heavily concentrated around finance/banking/FinTech and GovTech, although I've also been a founding developer at a couple of B2C startups and learned a lot throughout that experience.

My personal research interests include operating systems and programming language theory.

As cliche as it sounds, I try to learn something new all the time and I consider this of vital importance to my professional skillset. I always prioritize systems understanding and learning how to learn over memorizing APIs - and it's a philosophy that I try to share with my students as well.

Teamwork and constant exchange of expertise with my peers is a close second most important value to me. A software product can be almost meaningless without a team that welcomes learning from failures, encourages curiosity and fosters true human friendships, and empathy both towards each other and towards the customers of the software we create.

New client intake process

  1. Intro/triage call [free of charge] [15 min] - this is a Zoom video call where I try to understand your background, the problem you're looking to solve and whether I believe we'd be a good fit for a productive mentor/mentee relationship.

  2. Supplemental terms acceptance - as an independent contractor and not an employee of Arc, I ask my clients to accept a few additional terms that make session time measurement, scheduling and work product acceptance more precise, and further clarify the extent of our mentorship relationship.

  3. Creation of Freelance Job/Scheduled Session on Codementor - if you haven't done that yet, I will ask you to create and assign me a freelance job and/or a scheduled session with a precise description of the topics we would be covering.

For certain sessions, preliminary preparation may be required - if that is the case, we would discuss the details and estimated time ahead of time and a Freelance Job would be required to cover the effort of the preparation.

Availability

Please take a look at my Codementor calendar to plan intro calls and sessions. Generally, I am available between 3:30pm and 8pm Eastern Time (New York/Toronto), Monday to Saturday, but I try to schedule all of my teaching engagements between 6pm and 8pm whenever possible.

IMPORTANT: Urgent sessions are unfortunately not available at this time. I am currently working through Codementor as a mentor, and unable to work as an on-call freelance developer.

Please also note that I cannot provide consultations over chat - in my experience, it's generally more time-consuming for everyone, and copy-pasting code over chat can get messy. For those reasons, I only work through Zoom video calls with screen sharing.

If you have any questions about the process or would like to book a call, I am happy to chat on Codementor - I should be usually available Monday-Saturday, 1pm - 8pm Eastern Time, subject to my other engagements. While I try to respond as soon as I can, I may take up to one business day or longer depending on how busy my schedule might get.

Chinese, French, Russian, English
Eastern Time (US & Canada) (-05:00)
Joined August 2018
EXPERTISE
4 years experience | 2 endorsements
Experience provisioning, configuring and monitoring clustered systems (e.g. Kafka, Zookeeper, etc) and maintaining multi-tiered applicati...
Experience provisioning, configuring and monitoring clustered systems (e.g. Kafka, Zookeeper, etc) and maintaining multi-tiered applications for scale and high availability from projects in FinTech and public sector. Fluent both with VM-based deployment and containerized ones. My approach emphasizes infrastructure as code, and a security-first mindset.
9 years experience | 3 endorsements
Everything JVM - from a regular Spring-boot REST API setup, to novel frameworks built on Scala and Clojure, to legacy code maintenance un...
Everything JVM - from a regular Spring-boot REST API setup, to novel frameworks built on Scala and Clojure, to legacy code maintenance under IBM WebSphere.
View more
View more
6 years experience | 10 endorsements
Implemented FinTech/banking applications' UI with React.js, and used React with and without Redux as my go-to front-end stack for all of ...
Implemented FinTech/banking applications' UI with React.js, and used React with and without Redux as my go-to front-end stack for all of my projects. Recent experience building specialized highly-interactive graphical applications with React.
View more
View more
10 years experience
10 years experience

REVIEWS FROM CLIENTS

5.0
(231 reviews)
vv
vv
June 2021
excellent mentor
vv
vv
June 2021
excellent as always
Balraj
Balraj
June 2021
Very helpful and knowledgeable! Resolved my JavaScript related doubts clearly.
vv
vv
June 2021
Excellent work as allways.
vv
vv
June 2021
Excellent knowledge, speed and personal approach. He is fast to understand code and complete tasks. He helped me with a project that involved docker, node.js, redux, react, and testing with enzyme. He is great with AWS tech stack as well
Dada L
Dada L
June 2021
I was having trouble with my code (in TypeScript) not showing errors on my UI. Kirill was able to speed through my React components and showed me where my api was not being functioning properly and helped me fix it. Also showed me another way to see the results i wanted when running docker.
Dada L
Dada L
May 2021
Kirill was incredibly patient as he showed me my dev environment ( PHP, Lithium, NGNIX, Docker) and did a full-stack demo. Also adding a feature with TypeScript, React, and API. He was able to quickly go through the sequence, so I’m able to run locally and work on my own.
Dada L
Dada L
May 2021
Another great session where Kirill continued to help me understand the nuances of PHP, Docker, AWS, Rest API, TypeScript, and debugging Java. Super patient and knowledgeable; he seriously made his way through 4 different client files like it was a walk in the park.
Dada L
Dada L
May 2021
Kirill is a genius! He helped setup my environment, eating his way through the permission errors and docs faster than lasagna. Then proceeded to ensure the endpoints were set up, so I have a stating point.
Removed User
Removed User
April 2021
great at understanding the problem and working through it
EMPLOYMENTS
Founder, Senior Software Developer
Tachyon Owl Ventures
2024-06-01-Present
TBA
TBA
Python
React
DynamoDB
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Python
React
DynamoDB
Swift
Airtable
AWS
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Senior Software Developer
Epsilamic Solutions
2018-09-01-Present
Successfully bootstrapped my own consulting agency that helped multiple startups build out their products, and provided focused enterpris...
Successfully bootstrapped my own consulting agency that helped multiple startups build out their products, and provided focused enterprise training to various software development teams. In a couple of startups, I have acted as the founding developer, building out the entire product from concept to public launch and maintenance. [more details TBA]
Java
Node.js
Docker
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Java
Node.js
Docker
React
Spring Boot
Clojure
React Native
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Contract Senior Software Developer/Architect
The Hospital for Sick Children
2018-04-01-2018-09-01
Eliminated performance bottlenecks by decoupling parts of a monlithic Node.js application into a microservice architecture Led th...
Eliminated performance bottlenecks by decoupling parts of a monlithic Node.js application into a microservice architecture Led the team to further advance decoupling efforts and educated junior developers on infrastructure best practices Set up monitoring and alerting across the system, to improve awareness of production issues
Node.js
RabbitMQ
OpenStack
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Node.js
RabbitMQ
OpenStack
Docker
View more
PROJECTS
Bachelor of Computer Science Degree (University of Waterloo)
2009
Computer Science
Computer Science