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Süleyman Koçak

@sleymankoak

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Senior Frontend Engineer at Expo who contributed to mobile and web interfaces for its AI chatbot.

Turkey

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At Expo, I contributed to mobile and web interfaces for the product’s AI chatbot, and stepped into backend work when it moved things forward.

At Crea Inc., I developed frontend and backend solutions for AI-powered products while leading the product team’s development strategy and delivery from concept to launch.

Before that, as a Senior Frontend Engineer at Crea Inc., I contributed to mobile and web projects for Silicon Valley startups, working with agile teams on development and optimization.

Earlier, I worked on Krembi’s mobile application, enhancing its user experience and functionality, and contributed to mobile projects at Taptoweb.

Experience

Work history, roles, and key accomplishments

Senior Frontend Engineer

Expo

Mar 2026 - Jul 2026 (4 months)

Contributed to both mobile and web sides of the product, building interfaces around an AI chatbot and stepping into backend development when needed.

React Native Expo Next.js React TypeScript ExpressJS PostgreSQL Redis Firebase Socket.IO

Team Lead

Crea Inc.

Aug 2025 - Mar 2026 (7 months)

Led the company's product team focused on AI-powered products, developing frontend and backend solutions while overseeing development strategy and product delivery.

Senior Frontend Engineer

Crea Inc.

Mar 2022 - Aug 2025 (3 years 5 months)

Worked on various large-scale mobile and web projects for Silicon Valley startups, collaborating in agile teams to develop and optimize innovative solutions.

Next.js React React Native TypeScript Auth0 GetStream.Io Socket.IO Firebase Adjust Appsflyer Sentry RevenueCat

Mobile Software Engineer

Krembi

Aug 2021 - Mar 2022 (7 months)

Worked on the mobile application for a secure marketplace connecting service providers and recipients for beauty services, enhancing user experience and functionality.

Mobile Application Developer

Taptoweb

Sep 2020 - Jul 2021 (10 months)

Contributed to various mobile projects for digital transformation, playing a key role in advancing digital initiatives and enhancing mobile capabilities for diverse clients.