Senior Web Application Developer

Wowoo; Fatih; On-site; TRY 280,000 - 420,000; Full time

Benefits offered by this job

Private health insurance

Learning and education budget

MacBook, meal allowance, tools to ship

Team events

Job summary

Wowoo is a hyper-growth AI Mobile App Studio building AI-driven products for the global market. We seek a Web Developer to translate mobile experiences into fast, mobile-first web versions and own code quality end-to-end.

You will design and ship modern web apps with React/Next.js, implement type-safe TypeScript, and optimize performance while collaborating directly with founders and product owners in a fast-paced startup environment.

Qualifications

• 2–3 years of professional frontend development experience.
• Strong expertise in TypeScript, React/Next.js, and state management (Redux Toolkit, RTK Query).
• Experience designing responsive, performance-focused web apps and collaborating with product teams.

Responsibilities

• Design and build modern web applications with React & Next.js, choosing SPA/SSG/SSR as needed.
• Write clean, type-safe TypeScript and apply best practices for async programming.
• Shape state management and data fetching with Redux Toolkit and RTK Query.
• Develop secure authentication flows and integrate Firebase/Auth or similar services when needed.
• Improve web performance and optimize Core Web Vitals; ensure robust loading and error handling.

Skills

TypeScript

React/Next.js

Redux Toolkit

RTK Query

Tools

Keystone.js

Strapi

Sanity

Job description

Wowoo is a hyper-growth AI Mobile App Studio developing innovative, AI-driven products for the global market. Completely bootstrapped from day one, our lean and powerful team of 8 has scaled 7x in just 6 months, successfully reaching an $18M ARR milestone. Today, we stand as one of the most aggressively growing teams globally in the non-gaming mobile app category. Our portfolio features internationally acclaimed products such as ChatPrime, FaceForm, AI Baby Generator, and Render AI. Driven by a massive vision for AI-powered image processing and content creation, we are positioning our next-generation AI products to challenge the market dominance of major global players like Photoroom. We foster a high-trust, results-oriented start-up culture that cuts through the noise and bureaucracy.

We are looking for a “ Web Developer” to join our team.

Build, maintain, and scale the web versions of our consumer-facing mobile products end-to-end. Translate existing app experiences into fast, mobile-first, responsive, conversion-focused web products. Contribute to product decisions by working directly with founders and product owners without a heavy PM layer. Own code quality, performance, web vitals, and user experience as a personal responsibility.

Overview

• AI-first. We work alongside AI agents daily for coding, design, data, and experimentation. You're expected to be comfortable with this.
• Small team, big impact. Everyone owns their domain end-to-end. No hand-offs, no waiting for approvals.
• No unnecessary layers. You work directly with the founders. Decisions happen fast.
• Ship and iterate. We move quickly, learn from real users, and improve as we go.

What You'll Do

• Design and build modern web applications with React & Next.js, thoughtfully choosing between SPA, SSG, and SSR based on what each product needs
• Write clean, type-safe TypeScript, bringing functional and asynchronous programming best practices to our codebase
• Shape state management and data fetching using Redux / Redux Toolkit and RTK Query
• Help craft secure, seamless authentication experiences — sign-in flows, token/session handling, social login — and work with Firebase Auth, including shared authentication with our mobile products
• Build meaningful features on top of Firebase services, including Firestore, Realtime Database (RTDB), and Remote Config
• Integrate REST APIs, work with JSON data, and thoughtfully design loading, error, and offline states
• Continuously improve web performance by optimizing Core Web Vitals (LCP, CLS, INP), reducing bundle size, and applying smart lazy loading and caching strategies
• Keep an eye on production health using error/crash monitoring tools like Sentry, and turn what you learn into lasting improvements
• Help manage our CI/CD pipelines and deployment processes, using tools like Vercel
• Bring Claude Code or similar coding agents into your everyday workflow
• Translate user needs and existing app flows into thoughtful, well-scoped web solutions
• Work closely with founders, product owners, and UI/UX designers, iterating quickly and openly on feedback
• Take ownership of testing your own work, keeping reliance on QA light
• Keep an eye on key user metrics — conversion, retention, session behavior, errors, and web vitals — and turn insights into meaningful action
• Bring subscription/paywall and funnel thinking into how you build for our B2C web products

What We're Looking For

• Minimum 2–3 years of professional frontend development experience
• Strong expertise in TypeScript, React/Next.js, and state management (Redux Toolkit, RTK Query)

Nice-to-Have

• Backend familiarity with Python and/or .NET
• Experience shipping the web counterpart of an existing mobile app
• Content management systems — Keystone.js, Strapi, or Sanity
• Web animations — GSAP and Framer Motion
• A/B testing and experimentation on onboarding, paywall, and subscription flows
• LLM/AI SDK integration (API-based)
• Accessibility (WCAG) and localization experience

What You Get

• Direct impact on revenue and millions of users.
• Fast learning and real responsibility from the start.
• Equity: potential to earn stock options based on your impact and growth, reviewed after your first year.
• Private health insurance.
• Learning and education budget.
• MacBook, meal allowance, and the tools you need to ship fast.
• Team events

Think you're a good fit for this job?

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