Open to opportunities

Roman Grishkov

@romangrishkov

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I modernize SaaS and CRM platforms with Go, PHP, TypeScript, and Vue.

Germany

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What I'm looking for

I'm open to remote EU/UK B2B contracts where I can modernize SaaS, CRM, e-commerce, or loyalty platforms through architecture, API design, frontend delivery, migrations, and reliable CI/CD.

At 1CRM Systems, I’m modernizing a legacy CRM end-to-end, migrating 92% of its frontend to Vue and TypeScript and improving rendering speed by 28%.

I initiated the PHP-to-Go backend migration, designed REST and gRPC services, and reduced server costs by 40%. I also built real-time ClickHouse reporting, migrated core storage from MySQL to PostgreSQL, and automated 200+ Playwright tests on every pull request.

Previously at Collinson, I delivered loyalty and e-commerce platforms for 40M+ users across Etihad, Virgin, and LATAM. I’ve also built Magento subscription and fulfillment integrations for Billforward and Danone, combining reliable PHP backends, APIs, CI/CD, Docker, and Kubernetes.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

1CRM Systems Corp.

Apr 2022 - Present (4 years 5 months)

Architected modernization of a legacy CRM, migrating 92% of the frontend to Vue and TypeScript and leading backend migration from PHP to Go, reducing server costs by 40%. Designed REST/gRPC endpoints, implemented ClickHouse reporting, and built CI/CD with 200+ Playwright E2E tests.

Go PHP TypeScript Vue.Js PostgreSQL Redis Kafka Clickhouse Docker GitHub Actions

Current

Senior Full Stack Engineer | Go, TypeScript, PHP, Vue | Migration Expert

Current

1CRM Systems Corp.

Apr 2022 - Present (4 years 5 months)

• Architected the strategic modernization of a legacy CRM in a small engineering team (3-5): migrated 92% of the frontend from JS/PHP to Vue + TypeScript, improving UI rendering speed by 28%. Simultaneously initiated and architected the backend migration from PHP to Go, resulting in 40% lower server costs.
• Designed 15+ REST/gRPC endpoints in Go (Gin) to decouple the frontend from legacy PHP, ena

Senior Full Stack Engineer

Collinson

Mar 2019 - Mar 2022 (3 years)

Delivered SmartRedeemStore, a high-load loyalty platform for 40M+ users, and migrated CI/CD to GitHub Actions, reducing infrastructure costs by 40%. Owned technical delivery, implemented React admin dashboards, and integrated with Magento APIs.

PHP React TypeScript Docker Kubernetes GitHub Actions Magento Elasticsearch

Senior Full Stack Engineer | PHP, React, Kubernetes | Scalable E-Com Platforms f

Collinson

Mar 2019 - Mar 2022 (3 years)

• Collaborated with 4 cross-functional squads to deliver SmartRedeemStore, a high-load global loyalty platform handling promotional deals for 40M+ users across Etihad, Virgin, and LATAM.
• Engineered migration of CI/CD from TeamCity to GitHub Actions, reducing infrastructure costs by 40% (measured via cloud billing); containerized applications with Docker/Kubernetes for scalable deployments.
• Own

Senior Magento Developer | AWS, REST API

Billforward

Mar 2017 - Mar 2019 (2 years)

• Built HappyFamily Magento 2.x plugin (Danone) from scratch: integrated Billforward Subscription API + Amazon FBA to automate billing and fulfillment for 1,500+ monthly U.S. orders, reducing manual processing time by 23%.
• Engineered PHP/MySQL backend with REST API integrations (Magento ↔ Billforward ↔ Amazon FBA), achieving 99.8% order sync accuracy and reducing payment/delivery errors by 40% p

Senior Magento Developer

Billforward

Mar 2017 - Mar 2019 (2 years)

Built the HappyFamily Magento 2.x plugin for Danone, integrating Billforward Subscription API and Amazon FBA to automate billing and fulfillment, reducing manual processing time by 23%. Improved NPS by +18 through reliable automation and zero-downtime deployments.

PHP Magento MySQL Amazon FBA GitHub Actions

Magento Developer

Natur.no

Oct 2015 - Mar 2017 (1 year 5 months)

• Developed and maintained Magento 1.9 e-commerce platform (PHP/MySQL) for a Norwegian health food retailer, contributing to 15% annual profit growth (2016).
• Integrated shipping and billing systems to automate order fulfilment; implemented advanced checkout logging for faster debugging and transaction tracking.
• Delivered a subscription service feature and performed Linux server maintenance to

PHP Magento MySQL SQL Linux