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Ivelin Zlatanov

@ivelinzlatanov

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I build full-stack web applications with React, Rails, Java, and PostgreSQL.

Bulgaria

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What I'm looking for

I'm looking to continue building production-oriented full-stack applications, contributing across frontend, backend, APIs, databases, and application architecture while growing through hands-on engineering work.

I built a full-stack Cost Allocation System at Wollow International using Ruby on Rails, PostgreSQL, and Tailwind CSS. I created CSV ingestion that converts vendor billing files into normalized expense records, alongside role-based authorization, project-cost linking, and approval workflows.

At Quad Solutions, I developed an AI-powered internal administrative assistant with React and Java Spring Boot. I integrated REST APIs, OpenAI/LLM capabilities, Slack functionality, databases, and external services, helping reduce critical bug occurrences by 40% post-launch.

I'm also developing an independent full-stack application with Next.js, React, TypeScript, PostgreSQL, and Prisma, building APIs, authentication, admin functionality, and database-backed features with Git and Docker.

Experience

Work history, roles, and key accomplishments

Junior Full-Stack Software Developer

Wollow International

Feb 2026 - Jun 2026 (4 months)

Developed a full-stack Cost Allocation System using Ruby on Rails, PostgreSQL, and Tailwind CSS. Built CSV ingestion workflow and implemented role-based authorization and approval workflows.

Ruby on Rails PostgreSQL Tailwind