Open to opportunities

Andrey Antonov

@andreyantonov

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AI Software engineer and team lead building scalable web payment platforms.

Argentina

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What I'm looking for

I’m looking to lead and build scalable Ruby/JS applications with strong architecture and performance. I want to own features end-to-end—integrations, debugging, deployments—and collaborate closely with clients while mentoring teams.

I’m a highly experienced Full-Stack Developer with over 17 years building and optimizing web-based applications, with a strong focus on E-Commerce, Online Booking Systems, and Payment Gateways. I specialize in scalable, secure systems across industries like real estate and cryptocurrency.

In my current role as Senior Lead Software Engineer at CoachVantage, I developed a coaching management platform using Ruby on Rails and Vue.js, integrating Stripe and PayPal for subscriptions and one-time payments. I also implemented calendar sync with Cronofy and automated session links with Zoom, leveraging PostgreSQL with Hasura for efficient front-end data management.

I lead development teams through onboarding, mentoring, code reviews, and deployments, with a strong emphasis on architecture and performance optimization. I’m client-facing too—debugging and resolving issues with clear communication to deliver tailored solutions that meet project goals.

Experience

Work history, roles, and key accomplishments

Current

Senior Lead Software Engineer

Current

CoachVantage

Feb 2021 - Present (5 years 4 months)

Developed a B2B coaching management platform using Ruby on Rails and Vue.js to streamline scheduling, payments, and client communication. Integrated Stripe/PayPal subscriptions and one-time payments, added Cronofy calendar sync and Zoom session link automation, and led architecture, code reviews, deployments, and platform stability.

Ruby on Rails Vue.Js PostgreSQL Stripe PayPal Cronofy Zoom CI CD Team Leadership

Senior Software Engineer (Tech Lead)

ShareInvestor

Jan 2019 - Feb 2021 (2 years 1 month)

Maintained and improved software for a government-linked stock exchange platform for Bursa Malaysia and MBSB Bank, focusing on bug fixes and corporate website enhancements. Built a live webcast app for Annual General Meetings during the pandemic and supported data integration via a Go client for SGX, while serving as technical lead.

Ruby on Rails Vue.Js Elasticsearch PostgreSQL AWS Go Git Technical Leadership

Freelance Full Stack Developer

Upwork

May 2018 - Feb 2019 (9 months)

Built and optimized key features for a remote crypto investment platform, delivering improvements to existing functionality. Developed backend components using Ruby and JavaScript with PostgreSQL for data management and Puma for runtime support.

Ruby JavaScript PostgreSQL Puma Git Backend Development Crypto Platform Features Performance Optimization

Full Stack Developer

Bitcoin.co.th

Jan 2018 - Apr 2018 (3 months)

Developed e-commerce plugins to enable cryptocurrency payments, supporting BTC, BCH, LTC, and DASH across multiple platforms. Implemented crypto payment flows so merchants could accept digital currencies directly within their e-commerce software.

E Commerce Plugins Crypto Payments BCH Payments LTC Payments Merchant Checkout Enablement

Full Stack Developer

Krabi Riviera Ltd.

Jan 2012 - Dec 2017 (5 years 11 months)

Led development of Ruby on Rails applications including booking systems, e-commerce platforms, and real estate/property management tools. Built responsive interfaces with shopping carts, invoicing and quotations, implemented property management (bookings/finances and automated email notifications), integrated PayPal/Omise.io/local bank payments, and managed server infrastructure for reliable deplo

Ruby on Rails PostgreSQL Redis PayPal Omise.Io

Freelance Web Developer

Various Clients

Jan 2008 - Jan 2012 (4 years)

Managed multiple client projects end-to-end, including communication, budgeting, and delivering customized responsive web solutions. Developed apps using PHP (CodeIgniter/Laravel) and Ruby on Rails, implemented interactive features with AngularJS, and improved reliability with SSL security and cross-browser testing.

CodeIgniter Laravel Ruby on Rails MySQL AngularJS SSL Git SEO Optimization Cross Browser Testing

Web Developer

Crystallex

Jan 2006 - Jan 2008 (2 years)

Managed and debugged an online store built on 1C-Bitrix CMS, supporting product updates and order tracking for managers. Developed front-end components and PHP modules, and ensured cross-device compatibility for the shopping cart and checkout experience.

1C Bitrix CMS