Viktor Chystiakov
Hi! My name is Viktor, and I’m a software developer with 8+ years of commercial experience, primarily focused on PHP backend development with Laravel and Symfony.
My experience includes REST APIs, microservices, third-party integrations, database optimization, and maintaining and modernizing existing systems.
I’ve also worked with Node.js, React, WebSockets, SIP/WebRTC, FreeSWITCH, and Swift while developing Dialerr, a communications platform featuring telephony integrations, a Chrome extension, and a native iOS softphone.
I enjoy solving complex technical problems, working independently, and building reliable, maintainable software. I also use AI-assisted development tools to improve productivity while remaining responsible for code quality and technical decisions.
Developed a Chrome extension (Manifest V3) embedding an agent softphone toolbar into third-party CRM pages, and a native iOS softphone using CallKit, PushKit, and SIP/WebRTC. Worked on REST APIs and WebSockets, multi-device inbound call routing and ringing, APNs push notifications, iMessage and FaceTime channels with companion macOS daemons, and GoHighLevel integration.
Developed a system for managing Amazon Advertising campaigns. Implemented charts and CSV/Excel report generation, REST APIs and microservices, and unit tests. Optimized databases, upgraded Symfony from 4.4 to 6.4, and refactored code.
Integrated tracking and affiliate systems, including Tapfiliate and Effitrace. Worked with Swagger and ElasticSearch, and ported modules from Symfony 2.8 to Laravel 7.
Ported the project from Yii 1 to Yii 2 and developed RESTful APIs, frontend, admin, and client sections. Integrated third-party APIs including Google, Facebook, Instagram, Zendesk, and FirstData payments. Developed an email integration microservice, performed website scraping, and worked on acceptance, unit, and functional tests.
Maintained university and faculty websites and fixed bugs.