Professional Experience

TitanHub · Contract

Sep 2025 - Present · 2 mos

Dubai, United Arab Emirates · Remote

Industry: iGaming / Online Casinos

Working on the backend of a multi-tenant, multi-casino system that powers scalable online gaming platforms.

Develop and maintain backend services with Node.js and TypeScript
Design and optimize RESTful APIs for core platform features and real-time operations
Improve system architecture for better scalability, reliability, and security

Node.jsNestJSTypeScriptPostgreSQLMicroservicesApache KafkaRedisDockerRESTful WebServicesPrisma ORMGitHub

Self-employed

Jan 2025 - Present

Yerevan, Armenia (On-site)

Developed and maintain ApiCron, an API automation platform that enables developers to schedule HTTP requests using cron expressions. I maintain an active development cycle with updates every 1-2 weeks, adding features, improving optimization, and enhancing SEO.
Designed and created ToolsZone, a comprehensive suite of browser-based utility tools with a clean, ad-free interface.
Architected and developed a microservices-based language learning platform (LLT) encompassing web and admin panel applications.
Implemented backend services using TypeScript/NodeJS, NestJS, PostgreSQL, MongoDB, and RabbitMQ.
Developed frontend components utilizing TypeScript, React/NextJS, and Tailwind CSS.
Designed features including text and video reading/watching with integrated dictionary lookup, YouTube media extraction, speech-to-text processing with Whisper, and sentence saving capabilities.
Gained experience across the full stack, from UI components to server-side logic and infrastructure.

Node.jsReact.jsNestJSTypeScriptTypeORMNext.jsRabbitMQPostgreSQLMongoDBDocker

Self-employed

Sep 2024 - Jan 2025 · 5 mos

Remote

Developed and implemented robust APIs using NodeJS and TypeScript with the NestJS framework.
Designed and wrote comprehensive unit tests to ensure API reliability and code quality.
Utilized PostgreSQL for data persistence and management.

Node.jsTypeScriptPostgreSQLUnit TestingNestJS

Teracloud Armenia

Feb 2021 - Oct 2022 · 1 yr 9 mos

Yerevan, Armenia (On-site)

Led the design of the backend architecture for Blast TV, ensuring scalability and performance.
Defined and documented backend workflows, effectively delegating tasks within the backend team.
Authored comprehensive system and API documentation using Confluence and Swagger, improving team understanding and integration efforts.
Conducted thorough code reviews, contributing to improved code quality and reduced bugs.
Swiftly identified and resolved critical bugs in the production environment, minimizing impact on end-users.
Developed and implemented numerous RESTful CRUD APIs using NestJS, enhancing system functionality.
Designed and implemented a multi-PostgreSQL database architecture and schema, optimizing data storage and retrieval.
Established and documented coding standards and naming conventions, promoting code consistency across the team.
Integrated Sentry for proactive error monitoring and debugging.
Integrated AWS S3 for scalable and reliable storage of system resources.
Designed and implemented a microservice to abstract the handling of uploadable resources, improving modularity.
Enhanced the authentication microservice by adding new features and resolving issues within a dynamic roles-based access control system.
Developed an API stress testing tool, ensuring the robustness and performance of backend endpoints.
Main Tech Stack: NodeJS, TypeScript, PostgreSQL, NestJS, AWS, Docker

Node.jsNestJSAWSPostgreSQLJavaScriptTypeScriptDockerJiraVimGitLinuxMicroservicesSentryTypeORMRedisCI/CD

Hexact

Mar 2020 - Jan 2021 · 11 mos

Yerevan, Armenia (Remote)

Worked on Hexometer and Hexowatch, web monitoring platforms that track website changes and issues.
Successfully resolved critical production issues, ensuring system stability for end-users.
Developed and optimized complex MongoDB aggregations and PostgreSQL queries, improving data processing efficiency.
Implemented GraphQL APIs, providing flexible and efficient data fetching capabilities.
Developed new tools leveraging a headless browser (Puppeteer) to enhance system functionality.
Significantly improved the web crawler/spider in Hexometer through fixing bugs, optimizing performance, re-implementation, and extending its capabilities.
Implemented a structured and readable logging system, improving observability and debugging.
Integrated the Stripe payment system, enabling secure and reliable transaction processing.
Developed APIs for generating comprehensive summaries, reports, statistics, and charts, providing valuable data insights.
Implemented a thread pool to manage high-concurrency synchronous operations, improving system responsiveness.
Designed the backend architecture and implemented core components for both products.
Implemented a graceful shutdown mechanism and recovery strategies to enhance system resilience against partial failures and reboots.
Main Tech Stack: NodeJS, TypeScript, PostgreSQL, MongoDB, GraphQL, Stripe

TypeScriptGraphQLNode.jsPostgreSQLMongoDBJavaScriptMicroservicesStripeRabbitMQGCPDockerApolloGitLinux

Vishup Technologies

Dec 2018 - Mar 2020 · 1 yr 4 mos

Yerevan, Armenia (On-site)

Designed the complete backend architecture for the company's smart home system The Moon.
Worked as the main backend developer for Vishup PC and mining farm rental system.
Developed and implemented a custom bidirectional communication protocol over TCP for real-time data exchange.
Implemented a flexible trigger-rule-action mechanism for controlling a wide range of Z-Wave smart home devices.
Deployed and managed the system using PM2.
Created an intuitive smart home system management admin dashboard using VueJS.
Gained practical experience in NodeJS, TypeScript, PostgreSQL, MySQL, WebSocket, TCP/TLS, and binary data manipulation and processing.
Main Tech Stack: NodeJS, TypeScript, PostgreSQL, MySQL, WebSocket, VueJS

Node.jsTypeScriptPostgreSQLWebSocketJavaScriptTCP/IPVimGitLinuxMySQLVue.jsSASSIoTMicroservices

ColibriLab LLC

Sep 2018 - Dec 2018 · 4 mos

Yerevan, Armenia (On-site)

Gained foundational experience in AngularJS, HTML, CSS, and JavaScript.
Developed problem-solving skills through effective work on challenging codebases.
Implemented user authentication forms using Facebook and Google APIs.
Integrated the Stripe payment form into the frontend.
Developed new user-facing pages and features and efficiently resolved existing bugs.
Main Tech Stack: JavaScript, AngularJS, HTML, CSS, ReactJS, Stripe

JavaScriptHTMLCSSAngularJSFacebook APIGoogle APIReact.jsStripeVimLinuxBash