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Gurgen Muradyan

@gurgenmuradyan

Senior Backend Engineer with 7+ years building scalable Node.js/NestJS systems for SaaS, fintech, payments, and real-time platforms.

Armenia

Message

I'm a Senior Backend Engineer with 7+ years of experience building scalable and reliable backend systems using Node.js, NestJS, TypeScript, PostgreSQL, Redis, RabbitMQ, and Docker.

I've worked on SaaS, fintech, payment processing, hotel ordering, healthcare, and real-time communication platforms. My experience includes designing REST APIs, microservices, asynchronous workflows, distributed systems, and database-heavy business logic.

I have hands-on experience building reliable payment flows with idempotency, concurrency control, database locking, retries, background processing, and recovery mechanisms. I've integrated multiple payment providers and worked on systems where consistency and fault tolerance were critical.

At Altoros, I worked on production backend systems for healthcare and logistics projects, focusing on performance, database optimization, scalability, and reliability.

I enjoy solving complex backend problems, improving system architecture, and building services that remain reliable as traffic and business complexity grow.

Experience

Work history, roles, and key accomplishments

Senior Backend Engineer

Freelance

Jan 2024 - Dec 2026 (2 years 11 months)

Designed and developed scalable backend services using Node.js, NestJS, TypeScript, and PostgreSQL. Built backend architecture for SaaS platforms, integrated payment providers, and implemented asynchronous workflows with RabbitMQ and Redis.

Node NestJS TypeScript PostgreSQL Redis RabbitMQ Docker AWS WebSockets Distributed Systems Microservices Payment Integration

Senior Backend Engineer

Altoros

May 2022 - Jan 2024 (1 year 8 months)

•Developed and maintained backend services using Node.js, TypeScript across multiple production projects.
• Worked on healthcare-related systems as well as a delivery/logistics platform, implementing backend APIs and business logic for route planning and order assignment.
• Designed and optimized backend components for high-traffic production systems, with a focus on scalability and performance.

NestJS NodeJS PostgreSQL TypeScript Docker Kubernetes Redis RabbitMQ

Full Stack Engineer

evistep

Jun 2020 - May 2022 (1 year 11 months)

• Spent the majority of the role focused on backend development, building and maintaining REST APIs, business logic, database integrations, and server-side features using Node.js, TypeScript, PHP/Laravel, and relational databases.

• Worked across 20+ client projects in an outsourcing environment, adapting to different codebases, architectures, business domains, and technical requirements.

NestJS NodeJS PostgreSQL TypeScript Docker Kubernetes Redis RabbitMQ

Full Stack Developer

X-Soft LLC

Sep 2019 - Apr 2020 (7 months)

• Developed and maintained web applications using PHP, Laravel, Vue.js, and MySQL.

• Worked on a logistics/shipping platform for a US-based company involved in container transportation by sea.

• Built backend functionality, REST APIs, business logic, and database-driven features with PHP/Laravel and MySQL.