..: Yuriy Netesov | Backend Scala Freelancer :..

[ intro ]

I am a software consultant with over 15 years of experience building commercial software. I have worked in both corporate and startup environments. I specialize in backend, distributed systems, functional programming, Scala, C++, and Python.

[ legal ]

Company name: ynetesov
KvK nr: 88420612
Dutch citizen

[ contacts ]

phone nr: 0613949260 (whatsapp)
email: yuriy.netesov@gmail.com
github: http://github.com/dehun

[ where ]

I have a fully equipped home office to work remotely. As for the onsite, I am located in Almere, Netherlands, and can commute to nearby cities (i.e. Amsterdam, Utrecht, and Den Haag).

[ experience ]

FedEx/TNT | Senior backend developer, as self employed | 01.2023 - present | 1y8m | NL

I am part of a backend team developing new features and supporting B2B shipping platform .

tech

• Scala 2.13 amd 3, cats, zio, http4s, sql, akka, avro4s, elastic4s
• Kafka, Cassandra, ElasticSearch, azure, PostgreSQL, aws

highlights

• Unified our tech stack by migrating half of the microservices from akka to typelevel stack.
• Migrated codebase to Scala 3 and jdk21.
• Participated in numerous incident mitigations.

ActiveVideo | Senior software developer | 09.2021 - 12.2022 | 1y4m | NL

https://www.activevideo.com/

I have come back to ActiveVideo to work on their new platform - AppCloud. Joined in the middle of project development I mainly participated in stabilizing platform.

tech

• C++17, boost, stl, catch2, trompeloeil
• Python, py.test
• linux, git, gitlab, docker

highlights

• Optimized appcloud fingeprinting technology, which allowed certain applications to run on the platform way smoother.
• Refactored and partially rewritten HLS handling code for more performance, better readability and extendability, and a bunch of bugs.
• Fixed numerous platform bugs, which stabilized a bunch of applications on the platform.

Woov | Senior backend developer -> Backend tech/team lead | 04.2019 - 08.2021 | 2y5m | NL

http://woovapp.com

Woov is a platform for digital and live festivals. I have been working on the backend. First as Senior backend developer and after a year as a backend tech/team lead.

tech

• Scala, cats, cats-effect, fs2, http4s, doobie, sangria, circe, Scalapb, elastic-4s, pureconfig, scalikejdbc, monocle, magnolia, Scalajs
• PostgreSQL, ElasticSearch, neo4j, firebase rtdb, firebase firestore, Kafka, rabbitmq
• aws, aws-cdk (typescript), aws ecs, aws ecr, aws rds, aws elastic, aws s3
• sbt, git, pants-build, gitlab, docker, linux, bash/sh
• Python, pytest, asyncio, aiohttp
• datadog, opentracing, kamon

highlights

• Saved the day by making request handling 10 times faster, right before the biggest festival - turning a huge disaster into huge victory
• Played scrum master role, introduced feature teams with guilds which improved daily communications
• Implemented new CMS using Scalajs and Scalajs-react
• Designed and implemented some reusable parts for microservices to make start of a new microservice painless
• Fixed numerous performance problems and memory leaks, which had visible effect on stability
• Designed tracing and monitoring modules which improved incident response times (datadog)
• Organized hackathon to introduce api integration tests into the team and made those tests part of normal development practice
• Designed and implemented in-memory cache with invalidation through rabbitmq/Kafka messages - integrated into tooling used by content managers, replacing old implementation, this made content updates visible instantly
• Migrated backend build from pants-build into sbt, which enabled team to benefit from some widespread tools (like Scalapb, Scalajs, etc)
• Designed and participated in re-implementation of event search feature, significantly improving speed and stability in comparison to old implementation
• Implemented location based cache for events for blazingly fast lookup of events
• Improved compilation time making it 2 times faster, enabling faster compile-run loop for team members.
• Brought down number of compile warnings from over 10k to 0
• Implemented load testing tool

Reaqta | Backend software developer | 04.2018 - 03.2019 | 11m | NL

Participated in actively growing startup specialized on cyber-security. I worked as a part of small backend team.

tech

• Scala, akka(http, streams, cluster, persistence), http4s, cats, doobie, slick, circe, specs2, Scalatest, elastic4s
• Cassandra, ElasticSearch, kamon, prometheus, git, gitlab, jenkins, ansible
• linux, docker, Python, bash/sh, nginx

highlights

• Built simulator/load testing system from scratch
• Built horizontal scaling of the platform (akka-cluster) with a custom split brain resolver for akka-cluster

StackState | Backend software developer | 10.2017 - 03.2018 | 6m | NL

As a part of backend team I has been developing innovative platform for algorithmic operations on IT infrastructure.

tech

• Scala, akka(http, stream), Scalaz, Scalatest, spray-json, java 8
• HDFS, HBase, Kafka,
• aws, ansible, terraform, linux, Python, bash/sh, git

ActiveVideo | Senior software developer | 01.2016 - 09.2017 | 1y9m | NL

https://www.activevideo.com/

As a part of the small end-to-end scrum team, I have developed features across several components of the video delivery platform.

tech

• C++, stl, boost, gtest/gmock, cmake,
• Scala, java 8,
• Python, tornado, py.test, ansile, pypcap, dpktmpeg2 ts, h264, mpeg2, activemq
• linux, git, bash/sh
• clustering, double phase commit

highlights

• Clustering solution hardening: better handling of network partitioning and failure detection.
• Design and implementation of smart multiplexing.
• Designed and implemented a special tool to capture user interactions with tcpdump on production and replay them on the debug system.
• Refactored/bugfixed component test framework into something usable.

Bright Computing | Software developer | 08.2014 - 12.2015 | 1y5m | NL

https://en.wikipedia.org/wiki/Bright_Computing

I have been working as a member of the core team for the cluster management solution.

tech

C++, stl, boost, gtest/gmock, Python, tornado, jinja2, mysql, sql, linux, perl, bash/sh, git

highlights

• Designed and implemented new features.
• Introduced unit testing
• Migrated codebase to C++11/14
• Interviewed new colleagues
• Migrated process to Agile/Scrum like and introduced Jira

Cloudmade | Senior software developer | 11.2012 - 07.2014 | 1y9m | UA

I have been one of the core developers of Hybrid, Micromap, and Mapsafe cross-platform libraries (Android, Linux, Windows, WinCE, etc.). Those libs can be found in in-dash navigation systems in cars.

tech

C++, Python, stl, boost, linux, PostgreSQL, git, svn, cmake, bash, sqlite, sql

Dark Joker Games | Backend developer | 04.2011 - 10.2012 | 1y7m | UA

I was part of a small backend team (2 developers). My main responsibility was developing new features for a social game backend.

tech

C++, stl, boost, Python, mysql, sql, svn, mercurial, cmake, linux, bash, gtest

Ubisoft | Software developer | 01.2010 - 11.2010 | 11m | UA

• https://www.ubisoft.com/en-us/
• http://en.wikipedia.org/wiki/Tom_Clancy%27s_Splinter_Cell:_Conviction

I have been part of a small team of developers. Our main task was to port “Splinter Cell 5 Conviction” from the PC/PS3/Xbox platforms to the Mac OS X platform. My main responsibilities were network library porting and porting general game code to a Mac OS X.

tech

C++, tcp/ip, bunch of internal Ubisoft technologies

Vogster | Backend software developer | 01.2008 - 10.2009 | 1y10m | UA

• http://vogster.com
• https://en.wikipedia.org/wiki/CrimeCraft

Worked on the backend of the CrimeCraft game. I have been part of a medium-sized team of server-side developers. My main responsibility was the network connection between client and server and between nodes in the backend cluster as well. I have been mainly working on server fault tolerance and performance, but I have also implemented several game logic subsystem parts in C#.

tech

C++-03, C#, stl, C++/cli, RakNet, xml/xslt, tcp/ip

[ EoF ]