About

Berkay Arda Yıldız

Software engineer and frontend developer at Twin Science, three years in, specialising in Angular and React/Next.js. Before the web, six published mobile games as sole developer.

3+ yearsİstanbul, TREnglish C1Freelance open
Portrait of Berkay Arda Yıldız
Berkay Arda Yıldızİstanbul, TR

I build interfaces that have to survive real users, real deadlines and a roadmap that never stops moving.

01

Performance is the baseline

Speed is not a bonus feature. It is product quality, and it is a requirement from the first commit.

02

People, not screens

I design experiences, not surfaces. Every interaction should read as clear, purposeful and easy to trust.

03

The roadmap does not stop

I build large rewrites incrementally, so the team never has to stop releasing to accommodate them.

04

Technology serves something

I run science and AI workshops with YGA for children in the regions hit by the 2023 earthquakes.

Path

Games first, then production frontend.

09/2023 — now

Software Engineer / Frontend Developer · Twin Science

Led the Angular 8 to React migration and established the reusable component architecture. Ran frontend architecture across 5+ concurrent projects and drove a 65%+ PageSpeed gain on app.twinscience.com. Built an AI content editor and Node.js prompt pipelines, shipped the Scratch-based components behind code.twinscience, and owned Sentry monitoring and code review.

07/2023 — 09/2023

Frontend Intern · Twin Science

Component work across edtech products — the foundation of production-level frontend discipline.

11/2022 — 06/2023

IMAGINER Student Ambassador · Microsoft

Ran student workshops and technical sessions on Microsoft tooling at university and community events.

06/2022 — 02/2023

Junior Game Developer · Servo Studios

Owned the full lifecycle of five mobile games in Unity and C# — sole developer and product manager, shipping inside one-month deadlines.

05/2023

Software Engineer Intern · Beylikdüzü Municipality

A short public-sector term on implementation-focused engineering tasks.

2023 —

Science and AI workshops · YGA

Leading science and AI workshops for children in the regions hit by the 2023 earthquakes.

Credentials

Stack, education and languages.

The details, in one place and in plain text.

Stack

LanguagesTypeScript · JavaScript · Java · Python · C# · C/C++ · SQL
FrontendAngular · React · Next.js · React Native · HTML/CSS · Tailwind CSS · RxJS · NgRx
Backend & dataNode.js · Express.js · MongoDB · Redis · Socket.IO
ToolsUnity · Git · OpenAI · WordPress · Cursor · Amplitude · Photoshop

Education

2020 — 2024Istanbul Aydın University
B.S. Software Engineering
2019 — 2020Yeditepe University
English Preparatory, C1
2018Erasmus+, Lisbon
Cultural Introduction Programme

Languages

EnglishC1
GermanA2
SpanishA1
Next

Got something that has to hold up?

yberkayarda@gmail.com

Or use the contact formLinkedIn

© 2026 Berkay Arda Yıldız