Open to opportunities

Tigran Zakharyan

@tigranzakharyan

Message

Full-stack software engineer building secure APIs and RAG-powered AI systems with performance-driven focus.

Armenia

Message

What I'm looking for

I’m looking for a role where I can build secure, scalable full-stack products and ship AI features (especially RAG pipelines), while continuously optimizing performance and reliability with modern tooling and strong engineering standards.

I’m a full-stack software engineer focused on application security and AI systems. I translate UI/UX designs into responsive, pixel-perfect web interfaces and build scalable, production-grade applications with secure APIs and optimized performance.

At BraintSystems, I developed and maintained full-stack products using React, Node.js, NestJS, Python, FastAPI, and SQL databases, and led delivery through task assignment, code reviews, and stakeholder communication in an Agile environment. I also run web application penetration testing, documenting 100+ vulnerabilities (including XSS and SQL Injection) and I build local LLM-powered solutions with RAG pipelines—hybrid search, reranking, embeddings, NER, and prompt engineering—using FastAPI, Ollama, and Qdrant.

Experience

Work history, roles, and key accomplishments

Full-Stack Web/Mobile Developer

BraintSystems

Mar 2023 - Apr 2024 (1 year 1 month)

Developed and maintained full-stack web and mobile applications using React, Node.js, NestJS, Python, FastAPI, and SQL databases. Built and optimized RESTful APIs and backend services, and coordinated development work with Jira and GitLab, including task assignment and code reviews.

React React Native Redux JavaScript TypeScript Node.Js Development ExpressJS NestJS Python fastAPI SQL Databases REST APIs Backend Services Responsive UI Agile Development Jira Gitlab Code Review Stakeholder Management

Practice Web Development

Actrade

Jul 2022 - Feb 2023 (7 months)

Gained hands-on experience in web development by assisting in building and maintaining web applications. Translated UI/UX designs from Figma into responsive, pixel-perfect interfaces using React and SCSS.

Web Development Frontend Development React SCSS Figma UI UX

AI Development

NDA

Built local LLM-powered AI applications and developed optimized RAG systems. Designed scalable AI APIs using Python and FastAPI, including hybrid search, reranking, NER, embeddings, and prompt engineering.

Python fastAPI Ollama Qdrant LLM RAG Hybrid Search Reranking NER Embeddings Prompt Engineering LLM APIs

Penetration Testing

NDA

Conducted web application security testing across numerous targets using industry-standard tools and documented vulnerabilities. Demonstrated impact by gaining unauthorized access to user accounts.

Penetration Testing Web Application Security XSS SQL Injection Manual Testing

Full-Stack Web Developer

NDA

Built and deployed production-grade CMS-driven web applications using Next.js and MySQL. Designed secure server architectures with access controls and hardened configurations and managed production lifecycle tasks including Nginx configuration and infrastructure optimization.