P. Kostadinov Portfolio

Hi, I'm Petar Kostadinov

JavaScript Developer

Software engineer who turns complex requirements into clear, dependable web solutions. I bring a practical mindset, careful attention to quality, and a strong sense of ownership to every project.

About Me

Full-Stack JavaScript Developer

I am Petar Kostadinov, a full-stack JavaScript developer experienced in building and maintaining enterprise web applications. At the Financial Times, I have contributed to frontend and backend development, cloud infrastructure, platform modernization, service integrations, and observability. My earlier work at Ipsos strengthened my skills in quality assurance, client communication, and delivering accurate solutions under tight deadlines. I value thoughtful engineering, effective teamwork, and continuous professional growth.

My Journey

Education

05/2020 - 04/2023

JavaScript Developer — Software University (SoftUni)

Completed the full JavaScript development track, including front-end, back-end, applications, advanced JavaScript, and object-oriented programming.

Certificates

09/2006 - 05/2010

Transportation Equipment and Technologies — Burgas State University “Prof. Dr. Assen Zlatarov”

Graduated with a degree in transportation equipment and technologies.

Experience

08/2023 - Present

Software Engineer — Financial Times

Remote / Bulgaria

Develop and maintain enterprise-scale web applications using modern JavaScript and TypeScript.
Design and improve scalable frontend and backend solutions while maintaining high code quality.
Contribute to cloud infrastructure, platform modernization, migrations, and service integrations.
Implement secure configuration and secrets management, and improve observability and monitoring.
Collaborate in Agile teams through planning, code reviews, and knowledge sharing.

05/2021 - 10/2022

Survey Developer — Ipsos

Remote / Bulgaria

Created questionnaires based on client materials while meeting strict deadlines.
Implemented updates and improvements to existing projects with strong quality focus.
Combined development, QA, and direct communication with clients and project managers.

My Skills

Technical Skills

Languages & Frontend

JavaScriptTypeScriptC# HTMLCSSReact BootstrapLitHTML

Backend & Data

ExpressRESTGraphQLMongoDB

Cloud & Platform

AWSCloudflareCircleCI DopplerGrafana

Testing

JestMocha/Chai

Languages & Professional Strengths

How I Work

Problem-solving Attention to detail Team collaboration Clear communication Adaptability Continuous learning Ownership

Featured Projects

Full-stack application

ShoppingWell

A MERN shopping application developed as my React JS course defense project at SoftUni.

MongoDBExpressReactNode.js

View repository

Real-time application

MyReactChat

A real-time chat application focused on responsive communication through Socket.IO.

JavaScriptReactSocket.IONode.js

View repository

Explore More on GitHub

Browse my repositories, course work, experiments, and other development projects.

Visit GitHub profile

Contact Me