Viktor Shlapakov
Software Developer at Localistico
Belgrade, Central Serbia
Summary
🤩
Rockstar🎓
Top SchoolViktor Shlapakov is a backend-focused software developer with 12 years of experience building distributed, scalable systems and platform services from Belgrade. He specializes in Python and Erlang, has deep hands-on expertise with Docker, Kafka, Storm, Mesos/Marathon and service discovery tools, and has driven platform migrations and high-throughput scheduling at Zyte (formerly Scrapinghub). An active open-source contributor, he improved widely used projects like kafka-python, streamparse and Frontera—bringing Kafka integrations, async reliability fixes, and deployment simplifications to production tooling. Viktor combines a practical, tool-agnostic mindset with strong infrastructure instincts (monitoring, messaging, and stream processing) and a proven track record of automating provisioning and scaling for thousands of jobs per day. He’s comfortable learning new languages and paradigms (Clojure, Go, Scala on his roadmap) and often surfaces non-obvious system improvements that materially boost reliability and throughput.
12 years of coding experience
13 years of employment as a software developer
Professional retraining, Information Technology, A level, Professional retraining, Information Technology, A level at Computer Science Center (Saint-Petersburg)specialist, Сontrol and Informatics in Technical Systems, 4.8/5, specialist, Сontrol and Informatics in Technical Systems, 4.8/5 at Pacific National University
English, Russian
Stackoverflow
36reputation
114reached
1answer
0questions
Github Skills (21)
apache-storm10
python10
back-end-development10
kafka10
scrapy10
apache-kafka10
backend10
devops10
virtual-environment9
python-multiprocessing9
message-queue9
distributed-systems9
leiningen9
multi-process9
multiprocessing9
Programming languages (7)
Github contributions (5)
scrapinghub/frontera
Nov 2014 - Sep 2017
A scalable frontier for web crawlers
Role in this project:
Back-end Developer
Back-end DeveloperContributions:40 commits, 4 PRs, 2 pushes in 2 years 9 months
Contributions summary:Viktor primarily focused on improving the `frontera` backend by fixing bugs and refining existing features. Their contributions included addressing Unicode encoding issues within models, correcting variable names in the Scrapy middleware, and implementing bug fixes for the same middleware. The user also added the capability to send crawl statistics to a Kafka message bus and enhanced the backend to support stats for distributed systems.
scalableweb-crawlersweb-crawlercrawlerscrawler
dpkp/kafka-python
Feb 2015 - Jun 2015
Python client for Apache Kafka
Role in this project:Back-end Developer
Back-end DeveloperContributions:42 commits, 19 PRs, 49 comments in 3 months
Contributions summary:Viktor focused on improving the kafka-python client library, contributing several bug fixes and enhancements. Their work included correcting message keys in the async batching mode, improving the retry logic for asynchronous message sending, and fixing issues related to the MultiProcessConsumer. The user also made changes to the producer, including fixing the queue put arguments and updating tests to improve their compatibility. These changes directly enhanced the stability and performance of the Kafka client.
sinkapache-kafkapythonapachepython-client
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