Vladimir Zapparov
Senior Backend Developer at Sequencing
Greater La Coruña Area Spain
Summary
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RockstarVladimir Zapparov is a tech lead with 13 years of hands-on software engineering experience and over a decade working on network services, analytics, automation tools, and games. Currently leading engineering at Sequencing, he advanced there from senior backend developer to tech lead, driving data pipelines and backend delivery. He brings strong full-stack instincts demonstrated in contributions to high-profile open-source projects like js-yaml and Fontello, where he focused on backend testing, browserification, and cross-project integration. Vladimir pairs pragmatic engineering with test automation expertise, having refactored and modernized test suites and built functional testing helpers for complex parsing logic. Based in the Greater La Coruña area, he combines startup and consulting experience—shipping market-analysis and trading tools as well as indie game projects—so he’s comfortable switching between product-focused and infrastructure-heavy work. Peers describe him as a pragmatic problem-solver who prefers improving reliability and developer workflows behind the scenes.
13 years of coding experience
14 years of employment as a software developer
English, Russian
Github Skills (11)
testing10
mochajs10
javascript10
yaml10
test-automation10
front-end-development9
nodejs9
browserify9
j8
back-end-development8
css6
Programming languages (7)
Github contributions (5)
nodeca/js-yaml
Nov 2012 - Oct 2016
JavaScript YAML parser and dumper. Very fast.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:401 commits, 9 PRs, 14 pushes in 3 years 11 months
Contributions summary:Vladimir primarily focused on porting and testing the existing codebase. They refactored and converted existing test suites to utilize a new API and testing framework (Mocha). The user implemented and adapted a functional testing framework, including the creation of test helpers for loading and comparing data. The contributions involved significant interaction with JavaScript, testing, and YAML parsing.
javascriptyaml-parserdumperparserjson
fontello/fontello
Apr 2013 - Jul 2013
Iconic fonts scissors
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:82 commits, 1 comment in 3 months
Contributions summary:Vladimir primarily focused on refactoring and reorganizing client-side files within the Fontello project. This involved browserifying client-side modules and integrating them with existing systems. Additionally, the user contributed to porting and synchronizing the project with the Nodeca Core, which included changes to wire, render and other system components. This suggests a focus on both front-end and back-end aspects of the project.
scissorsgoogle-fontsfont-sizewebfontsfont
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