Available to hire
Hi, I’m Alex Sonich, a seasoned Senior Full-Stack Developer with over 20 years in IT and more than 10 years of commercial software engineering experience. I’ve had the opportunity to lead teams and launch complex SaaS, e-Commerce, and enterprise projects. I’m passionate about delivering quality code, mentoring junior developers, and integrating cutting-edge technologies to meet business needs.
I thrive on collaborating with international clients and teams, bringing a business-oriented mindset to every project I tackle. Whether it’s full-stack development, DevOps, AI integration, or SEO optimization, I love helping software and SaaS projects succeed with scalable and reliable solutions.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Advanced
Ukrainian
Fluent
Russian
Advanced
Work Experience
Team Lead Developer at S****-** (NDA)
January 1, 2024 - PresentLed a TypeScript-based application project integrating browser GUI powered by Puppeteer. Responsibilities included development on the frontend with Vue 3 and Pinia, backend with Node.js, NestJS, TypeScript, Puppeteer and PostgreSQL, and server management on AWS EC2 with Cloudflare and CloudWatch. Used Git, PGadmin, and Acunetix for versioning and security audit.
Senior Software Engineer, Full Stack Developer, Symfony Development at SoftServe
January 1, 2024 - July 13, 2025Worked on a monolith e-commerce application based on Symfony PHP framework. Added new features, migrated UI, fixed bugs, estimated tasks, prioritized issues, and maintained Docker environments. Backend technologies included PHP, Memcached, Composer, MySql, and Solr, hosted on AWS EC2.
Senior Full-Stack Developer, Team Lead Developer at DDI development
January 1, 2022 - July 13, 2025Developed a prompt generator app for Pinterest social area, creating custom pins for advertisement companies via Laravel RESTful API backend and Vue.js frontend. The project included integration with OpenAI for prompt generation and IdeogramAI for pin generation, hosted on Digital Ocean.
Senior Software Developer, Full Stack Developer, WordPress Developer at WildSolutions LTD
June 30, 2021 - July 13, 2025Maintained a USA-based project supporting up to 30k online users. Responsibilities included CI/CD pipeline management, HubSpot integration, data migration, SEO and code optimization. Developed new multilingual features using Laravel and WordPress on WP-Engine + AWS with Cloudflare services.
Senior Full-Stack Developer / Senior WordPress Developer at Work-Nest Technologies LTD
December 31, 2020 - July 13, 2025Updated client-specific WordPress themes, rebuilt frontend parts using Async JS, SCSS, and classic HTML. Integrated Tableau and HubSpot APIs to visualize US maps with dynamic data. Worked on Google Tag Manager, Analytics, and HeapIO integrations, hosted on Managed WP Engine.
Senior Full-Stack Developer (with SalesForce responsibilities) at StarWindSoftware
January 1, 2020 - July 13, 2025Executed core SEO updates across 40+ client resources including virtualization platforms like Hyper-V. Updated technical libraries and supported custom CRM and SEO resources using Vanilla PHP, JS, SalesForce, and ModX REST API integrations, hosted on Cloudflare.
Backend Developer at Grapps LTD
January 1, 2018 - July 13, 2025Maintained and upgraded a legacy payment gateway PHP monolith application. Migrated PHP from version 7.2 to 8.2 while ensuring code maintainability and security with OWASP compliance. Used Git and XDebug during development.
Senior Software Engineer / Full-Stack Developer (WordPress Developer) at SierraGroup LTD
January 1, 2017 - July 13, 2025Supported 'ComeBackAlive' UA military aid website including bug fixes and e-commerce development using Vue.js v3, WordPress, WooCommerce. CI/CD, GitLab, Jira, Confluence, and Scrum practices were employed on AWS EC2 with Cloudflare.
Senior Full-Stack Developer (with DevOps responsibilities) at Freelance
January 1, 2014 - July 13, 2025Maintained USA project with 30k users including CI/CD, HubSpot kernel updates, data migration, SEO improvements, and database optimization. Developed new features with Laravel blade templates, WordPress CMS, and API integrations hosted on WP-Engine.
Senior Software Engineer (with Full-Stack Developer responsibilities) at SierraGroup LTD
January 1, 2010 - July 13, 2025Worked as Senior Software Engineer responsible for Drupal, WordPress, and enterprise hosting. Developed websites, CRM modules, SEO, and marketing integrations. Utilized PHP, Node.js, SQL, HTML, CSS, JavaScript, Docker, Jenkins, AWS EC2, Cloudflare deployment, and Agile methodologies.
DevOps System & Administrator at Osnova-Group LTD
January 1, 2008 - July 13, 2025Provided DevOps and System Administration services for a leading Ukraine building and construction company. Managed server environments and supported various full-stack development tasks.
Team Lead Developer at SierraGroup onlyfuns.com
January 1, 2024 - PresentLed hands-on development of a TypeScript-based application using Vue 3, Node.js, NestJS, Puppeteer, REST API, and PostgreSQL hosted on AWS. Responsible for frontend and backend development and integrating cloud services and security tools.
Senior Software Engineer, Full Stack Developer at SoftServe mobile.co.uk carphonewarehouse.com
December 31, 2024 - July 13, 2025Worked on a monolithic e-commerce Symfony application adding features, migrating UI, fixing bugs, and managing code with Docker and AWS environments.
PPC Lead Generator / ASO Specialist (with Full-Stack & DevOps expertise) at SierraGroup darico.com.ua
December 31, 2021 - July 13, 2025Led end-to-end marketing for eCommerce including analytics, product selection, SEO, Google Ads campaigns, and landing page development. Significantly increased organic traffic and sales.
Senior Full-Stack Developer, Team Lead Developer at SierraGroup pincraftr.com
December 31, 2020 - July 13, 2025Developed a prompt generation app for Pinterest social area, combining frontend Vue.js and backend Laravel with AI content generation integration.
Senior Software Developer, Full Stack Developer, WordPress Developer at SoftServe Amplify.com
December 31, 2020 - July 13, 2025Maintained and supported a US education project with high traffic, implementing CI/CD, HubSpot integration, multilingual support, SEO enhancements, and database optimizations.
Senior Full-Stack Developer / Senior WordPress Developer at Placer.AI
December 31, 2019 - July 13, 2025Solved critical lead tracking issues, integrated Tableau and HubSpot APIs for real-time analytics, and improved WordPress theme performance and SEO.
Senior Full-Stack Developer / Lead Generation Specialist at StarWindSoftware
December 31, 2018 - July 13, 2025Developed a global lead generation platform integrating CRM and sales tools with SEO-optimized resources, reducing lead handling time and increasing conversion.
Backend Developer at SoftServe Vivint.com
December 31, 2024 - July 13, 2025Maintained and updated a PHP monolith payment gateway application for customer billing, migrating PHP 7.2 code to 8.2.
Senior Software Engineer / Full-Stack Developer (WordPress Developer) at ComeBackAlive savelife.in.ua
December 31, 2019 - July 13, 2025Supported and enhanced an e-commerce WordPress solution for Ukraine military support, fixing bugs and adding features.
Senior Full-Stack Developer (with DevOps responsibilities) at SoftServe amplify.com
December 31, 2020 - July 13, 2025Led support and maintenance of a high-traffic US education PWA project, implementing data migration, SEO work, and new feature development in a multilingual environment.
Senior Full-Stack Developer at LinkedIn Chess.com
December 31, 2019 - July 13, 2025Designed and developed a blockchain-based game prototype with Solidity smart contracts, frontend integration, and testnet deployment.
Education
Master's degree at Kyiv National University of Construction and Architecture
January 1, 2017 - December 31, 2019Bachelor's degree at Kyiv National University of Construction and Architecture
January 1, 2004 - December 31, 2017Master's degree at Kyiv National University of Construction and Architecture
January 1, 2017 - December 31, 2019Bachelor's degree at Kyiv National University of Construction and Architecture
January 1, 2004 - December 31, 2017Qualifications
Google Ads Certification
January 1, 2009 - December 31, 2009Google Ads Certification
January 1, 2013 - December 31, 2013Google Ads Certification
January 1, 2017 - December 31, 2017OWASP Web Security
January 1, 2023 - December 31, 2023Udemy, Coursera, internal trainings
January 1, 2020 - December 31, 2025Google Ads Display Network Certification
January 1, 2025 - December 31, 2026OWASP Web Security
January 1, 2022 - December 31, 2023Udemy, Coursera, Internal Trainings
January 1, 2020 - December 31, 2025Industry Experience
Software & Internet, Education, Healthcare, Government, Real Estate & Construction, Professional Services, Non-Profit Organization, Gaming
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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