Looking for a job

Karen Ghalachyan

@karenghalachyan

Message

I build secure Node.js payment, blockchain, and e-commerce systems that scale reliably.

Armenia

Message

What I'm looking for

I'm looking to build secure, scalable backend systems involving payments, blockchain, APIs, and high-volume transactions.

At Skillex, I build secure payment and blockchain transaction platforms, integrating payment gateways, banking APIs, smart contracts, and multiple blockchain networks while maintaining 99.9% uptime.

Previously at Hydralab and as a self-employed web developer, I built Node.js REST APIs, e-commerce systems, inventory and payment features, CMS platforms, and Telegram bots for automation and real-time messaging.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Skillex

Sep 2024 - Present (2 years 1 month)

Engineered secure, high-performance payment and blockchain-based transaction platforms. Administered databases with sensitive financial and blockchain data, ensuring compliance and data integrity.

NodeJS Blockchain Payment Systems PCI DSS Smart Contracts Databases Debugging Performance Optimization Scalability

Software Engineer

Hydralab LLC

Sep 2022 - Sep 2024 (2 years)

Architected backend systems for secure online payments, inventory control, and high-volume transactions. Built Node.js REST APIs and designed scalable Telegram bots for automation and user engagement.

NodeJS REST APIs Caching Load Balancing Telegram Bots Ecommerce Backend Development

Web Developer

No-company. (Self-employed)

Jan 2020 - Sep 2022 (2 years 8 months)

Designed and developed e-commerce platforms and content management systems to enhance user experience. Implemented responsive design, user authentication, and API integrations.

Ecommerce CMS Responsive Design User Authentication API Integration Performance Optimization