perechnev
Software Developer With 10+ Years Of Experience
Low-level and systems software engineer with 10+ years of professional experience writing production-grade code in C, Objective-C, Python, and Swift.
Strong background in Unix/Linux systems, embedded firmware, and network protocols.
I am currently studying Rust intensively and transitioning into cryptocurrency and blockchain development — focusing on secure, performant, and reliable systems programming.
Maintainer of the official Monero Wallet client for FreeBSD. Passionate about open-source software, decentralized technologies, and privacy-oriented architectures.
Experience: 11 years
Yearly salary: $36,000
Hourly rate: $25
Nationality: 🌏 Remote
Residency: 🌏 Remote
Experience
Lead Software Developer
BookBook 2023 - 2024
Led the end-to-end development of a client-server architecture for booking platforms. Responsible for both backend and mobile client development using C/C++, Python (Django REST Framework), PostgreSQL, and Swift. Improved overall reliability, eliminated chronic issues, and launched a stable product ready for production.
Lead Mobile Developer
World Chess PLC 2021 - 2023
Built the official FIDE (International Chess Federation) application from scratch. Implemented high-performance chess logic algorithms, real-time synchronization, and low-latency client-server interaction. Technology stack: C/C++, Objective-C, Python, Swift, ARM Assembly.
iOS Developer
Chess.com LLC 2019 - 2021
Worked on chess analysis algorithms for the world’s most popular chess platform. Designed optimized logic for local game and opening analysis, targeting low-end mobile devices. Collaborated with an international distributed team across multiple time zones.
iOS Developer
Ultimate Guitar 2017 - 2019
Developed audio processing modules and cross-platform rendering engines for sheet music and tablatures. Contributed to the modernization of the mobile codebase in Objective-C.
iOS Developer
Topface LCC 2015 - 2017
Supported and enhanced the Kiss Kiss app using C/C++/Objective-C. Migrated legacy modules to Swift, improving stability and code maintainability.
iOS Developer
Top Digital LLC 2013 - 2015
Led mobile application development in C and Objective-C. Designed cross-platform core modules and mentored junior developers.
Mobile Application Developer
Dino Systems 2011 - 2013
Built cross-platform components in C and Objective-C for the ContaXter project. Developed the server backend in Python, implementing data processing and APIs.
Skills
assembly
c-plus-plus
compiler
linux
mongo
objective-c
postgres
python
rust
swift
english
russian
spanish