Ilker Guller - Senior Engineering Lead at Raisin

Ilker Guller

Senior Engineering Lead at Raisin

Berlin, Germany

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Summary

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Rockstar

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Top School

Ilker Guller is a Senior Engineering Lead based in Berlin with 14 years of experience building front-end-first, full-stack products and scaling engineering teams across Europe and beyond. He specializes in modern JavaScript ecosystems—React, React Native, Next.js, TypeScript and component-driven architectures—while pairing that with server-side experience in Node.js and ASP.NET and operational knowledge of AWS, Docker and Kubernetes. He has led cross-functional teams at companies like Moonfare, heycar and Delivery Hero, mentored 10+ developers across global offices, and driven growth-focused product domains and mobile launches. An active open-source maintainer, he authored the RAN toolkit (React + GraphQL + Next.js) to simplify SSR, SEO and CSS-in-JS workflows, reflecting his knack for shipping developer-friendly tooling. Outside work he’s a gamer and metal drummer, a detail that hints at his collaborative, high-energy approach to team leadership and creative problem solving.

14 years of coding experience

17 years of employment as a software developer

4.4 Software Development, 4.4 Software Development at Akif Tuncel Technical High School

Leadership Principles, Leadership Principles at Harvard Business School Online

Master of Interactive Marketing, Master of Interactive Marketing at Istanbul Bilgi University

Bachelor's degree Business Administration, Bachelor's degree Business Administration at Anadolu University

Graduate School Computer Technology & Programming, Graduate School Computer Technology & Programming at Çanakkale Onsekiz Mart University

Stackoverflow

Stats

3,244reputation

509kreached

22answers

16questions

Github Skills (16)

graphql10

nextjs10

styled-components10

wordpress-graphql10

wpgraphql10

react10

javascript9

nodejs8

keyword6

declaration6

struts6

apollo6

jquery6

react-native6

ecmascript6

Programming languages (18)

C#JavaC++CSSRustTextHTMLNunjucks

Github contributions (5)

Sly777/ran

Jun 2017 - Mar 2021

:zap: RAN! React . GraphQL . Next.js Toolkit :zap: - SEO-Ready, Production-Ready, SSR, Hot-Reload, CSS-in-JS, Caching, CLI commands and more...

Role in this project:

Full-stack Developer

Contributions:24 releases, 510 commits, 516 PRs in 3 years 9 months

Contributions summary:Ilker primarily contributed to the front-end aspects of the RAN! toolkit. They added and updated UI components using React, Next.js, and styled-components. Their work included adding new pages and routing functionality to enhance the user experience. They also made changes to the build process and added documentation for deployment.

seo-readynext-jsreloadproduction-readyran

Sly777/hayde

Sep 2023 - Mar 2025

Open Source Component-Driven Code Generator; It supports OpenAI, Ollama, ChakraUI, MaterialUI, BuilderIO, and more.

Contributions:13 releases, 15 PRs, 71 pushes in 1 year 6 months

aiai-helperbuilder-iochakra-uicli

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