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Ongun Demirağ

Software & Web Developer

Certificates & Skills
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Poland, Europe

ongun@ongundemirag.com

© OngunDemirag- 8 / 2026

Software & web developer with an engineering foundation — BSc in Electrical and Electronics Engineering and MSc in Mechatronics, Robotics and Automation Engineering from Poznan University of Technology, plus an Erasmus semester at Lodz University of Technology. Based in Poland, I build production web products, automation tools, and client platforms with Next.js, React, TypeScript, and Python.

Currently Senior Customer Support Engineer at Web Scribble (USA, remote), helping organizations ship and support web products with tools like HubSpot, Salesforce, Slack, and LiveChat — while also delivering responsive single-page applications. Previously a JavaScript & full-stack developer at Digital Strategies, working on cryptocurrency, blockchain, and Web3 experiences including MetaMask flows and ERC-20 / ERC-721 integrations. Earlier roles at Arimed combined UI design, ECMAScript CAD tooling, and electrical engineering automation.

Across freelance and product work since 2018, I have shipped company sites, marketplaces, mentorship platforms, job-automation products (Apllie / Automated Bots), dashboards, and SaaS-style apps. I care about modern frameworks, clean UX, and upgrading older systems with practical, maintainable technology.

Experience

7+ years

Focus

Full-stack & automation

Based in

Poland, Europe

Stack

Next.js · React · Python

What I bring

Front-end & product UI

Build responsive, production-ready apps with Next.js, React, TypeScript, and Tailwind CSS — from company sites to SaaS dashboards and marketplaces.

Automation & scripting

Ship browser and workflow automation with Python, Selenium, and custom tooling — including job-apply products like Apllie / Automated Bots.

APIs & integrations

Connect front ends to APIs and third-party systems, optimize data flow, and support stacks involving HubSpot, Salesforce, Slack, and LiveChat.

Web3 & blockchain apps

Experience with crypto/Web3 product work: MetaMask flows, helper scripts, and ERC-20 / ERC-721 token integrations for play-to-earn and NFT experiences.

UI / UX & engineering tools

Design interactive interfaces with Figma, plus engineering-side UI work in Qt and KivyMD, and CAD/script automation from earlier electrical engineering roles.

Performance & maintenance

Improve speed, scalability, and reliability of existing web apps — modernizing older codebases while keeping delivery practical for clients and teams.

Support & documentation

As a Senior Customer Support Engineer, translate product issues into clear fixes and docs so clients, support, and engineering stay aligned.

Remote teamwork & delivery

Comfortable in scrum/git environments across remote US and European teams. Strong English communication and collaborative delivery from concept to launch.