Contact information
- Mikhail Gusarov
- E-mail cv@dt.mg
- Phone +356 99100291 (timezone is UTC+1)
Summary
I design, develop, maintain and run software systems with a focus on long-term maintainability, and lead compact teams doing so.
What do I do?
Software design
Software systems need both functionality and properties such as flexibility, adaptability and ease of operations. I know how to isolate layers, invert dependencies, partition systems, evict state, add immutability, split interfaces and make tons of other small and large decisions to make it happen.
Requirements change all the time. I know how to do an MVP to avoid spending months implementing features nobody wants.
Complexity creeps in. I know how to prune unwanted statefulness, remove layering violations, keep the interfaces minimal.
All software is distributed now: Web SPA and mobile apps are distributed systems too. I know how to manage upgrades, do a staged rollout client- and server-side, collect metrics and log messages, how to deal with old versions of client software suddenly reappearing out of the blue and how to version REST protocols to avoid breakages while staying flexible.
(Distributed) team leadership
I have experience leading compact engineering teams (from 2 to 8 people), both on-site and distributed (with timezones spread from UTC-4 to UTC+8), both in commercial setting and in a voluntary cooperation around an open source project.
I like this kind of work and would like to do it again, especially in an environment where management and technical leadership are separate roles.
Reengineering and refactoring
Is your legacy system a mess? Does implementing a new feature take ages, do bugfixes cause more problems than they solve, do system administrators have to apply enormous amount of effort to keep it running?
This is something I am able to do and like to tackle. I have experience decluttering various software systems, getting rid of creeping statefulness and streamlining operations.
Tools
I know my tools. I have introduced CI into several projects, bootstrapped an embedded Linux distribution and all of its infrastructure, and wrote a countless number of tests, makefiles and scripts.
DevOps / SRE
Server configuration management is so XX century (I’m saying this as a major contributor to CFEngine).
Read-only stateless containers are a good thing (I added a container-related tool to util-linux).
I’d like to work on a project that either plans to, switches, or uses existing tools, such as Docker and Kubernetes. Implementing infrastructure bits and pieces from scratch is a lot of fun and one can sink enormous amount of effort on it.
What do I expect?
- Remote work (unless the company offices are located on Malta).
- Flexible work schedule, to a reasonable extent.
Projects/Companies
Open Source
I have contributed numerous patches to various open source projects, mostly fixing problems I have encountered.
Are you running Ubuntu or Debian? Say apt-cache show libssh2-1 and see the
Maintainer field.
Are you running Linux? Check out the AUTHOR stanza in man 1 unshare.
Ridge (2018+)
I am a software architect of Ridge project.
I am responsible for eliciting and developing users' needs, formulating requirements for Ridge, shaping the architecture to fulfill these needs.
I am also responsible for code reviews and for for improving project tooling.
Hola! / Luminati (2013-2018)
Wearing my SRE hat, I have improved insight into performance of Hola services, by adding
- centralised application-level logging, and
- application-level metrics
that made it much easier to pinpoint and resolve performance problems and bugs.
I have created several internal-facing statistic dashboards for Hola VPN and also user-facing statistics for Hola Spark CDN.
While working on Luminati I have implemented a custom in-memory DB to track the status of 1M+ peers of Luminati network that decreased the price of hardware running this database by 8x compared to the off-the-shelf DB.
Debian (2006+)
I maintain several packages in Debian, mostly “scratching my own itch”.
My Debian experience usually makes me a “resident Debian/Ubuntu expert” in companies I work for.
CFEngine (2011-2013)
I have thrust CFEngine from SunOS 4 times into 21 century (not single-handedly, but pushing hard for the changes), converting it from R&D-ware to a reliable software package along the way, adding unit and system testing, continuous integration, discernible release management and other useful software engineering practices.
OpenInkpot (2007-2012)
A Linux distribution for eBook readers. It was fun while it lasted until Kindle killed it.
I have started it, have built the infrastructure (from bugtracking to cross-compiling Debian packages in CI environment to repository manager) and was BDFLing it until it withered out.
Also I’ve got the experience managing distributed team in addition to the previous experince working in one.
Parallels (2004-2007)
For Plesk for Unix I have created (in a team) a tool for transferring contents of competing hosting panels to Plesk, which was then repurposed as a backup system.
OpenFusion project was my first spell as a software architect. I have designed SSO mechanism for Parallels apps, and also a Web applications packaging format (Wikipedia page).
Other
| From | To | Name | What it was/is about? | |
|---|---|---|---|---|
| 2009 | 2010 | IPlinux | Unwillingly started a Debian-based embedded distro to build OpenInkpot on top of something after previous base distribution got abandoned by the primary developer. Worked OK, but OpenInkpot was always the main focus. | |
| 2007 | 2009 | ALTÂ Linux | I was maintaining distro bugtracker, bringing development documentation into order and creating internal web apps for analysis of development process. | |
| 2003 | 2004 | Axmor | As a member of IBM Solutions Group team I was doing R&D work for IBM, evaluating new cool technologies of the time for potential usefulness for IBM projects. Also doubled as system administrator. | |
| 2003 | 2003 | Novosoft | An intern! My first “real” place of work. Billing system based on Cisco NetFlow. |
Keywords/Experience
30Y+ experience in
Russian language (native).
10Y+ experience in
C, Linux, Make, Debian, Korn-like shells, POSIX/SUSv3.
5Y+ experience in
C++, Javascript, Node.js, TCP/IP, Python, git, CFEngine.
Norwegian language (upper intermediate).
3Y+ experience in
MongoDB, various Internet protocols, REST interfaces, ElasticSearch, AWS.
1Y+ experience in
Clojure, Perl, various Unices, XSLT, Java, Django, Eclipse RCP, SQLite, PostgreSQL.
Have a good grasp of
OO, functional, structured and other kinds of programming. OO and functional design. Various tools and toolchains (CI, builds, testing etc).
Toyed with
Various Lisps, Go, Docker, Haskell, React, Ruby, OCaml, Rust, Erlang, C#, J2EE (old one), Google Cloud Platform, Kubernetes, Ansible, Salt, Puppet, and everything else on the front page of Hacker News.