Frontend Developer

About Ideawise 🌍

We don’t just build ventures—we create impact. Our mission is to transform bold ideas into high-growth, scalable startups that challenge norms and drive meaningful change. With a decentralized structure and a focus on agility, transparency, and purpose, we empower each venture to evolve independently while staying aligned with our vision.

What We Do 🚀

We take startups from concept to scale, combining rigorous validation, rapid development, and strategic growth. Our plug-and-play infrastructure gives ventures a strong foundation, while our data-driven, modular approach ensures they scale with precision.
One of our ventures, Kaufmich, is the largest escort/client marketplace in the DACH region with over one million registered members and more than 8 million monthly visitors. As a value-driven project, Kaufmich is on a mission to empower sex workers and their clients, and is expanding internationally.
The Kaufmich Platform Engineering Squad builds and maintains the technical backbone that powers every Kaufmich experience. From frontend architecture and CI/CD pipelines to shared component libraries and automated testing frameworks, the squad ensures our systems are fast, reliable, and scalable. We work across squads to enable developer productivity, strengthen our infrastructure, and raise the bar for code quality and performance.

What You’ll Own & Drive🔥

• Design, develop, and optimize shared Frontend foundations: React components, libraries, and frontend infrastructure.
• Partner with DevOps to streamline CI/CD pipelines, reduce build times, and enhance deployment observability.
• Apply and promote TDD, Clean Code, SOLID, Vitest, and TypeScript best practices across the codebase.
• Raise frontend performance, accessibility, and reliability across key user flows.
• Collaborate with backend & QA on automation (Playwright, Jest) and quality gates.
• Support modernization (React 19 migration, static analysis tools, and code health dashboards.)
• Proactively reduce technical debt for sustainable growth.

What You Need to Succeed 🏆

• 5+ years in modern frontend development using React (Hooks, Context API, modern patterns) and Node.js.
• Background in B2C or high-traffic web applications, especially in platform or infrastructure teams.
• Proficiency in TypeScript, Vite/Webpack, and CI/CD pipelines (preferably Git).
• Proven ability to diagnose and resolve complex performance and build issues.
• Familiarity with DevOps practices — Docker, CI/CD pipelines, observability tools (e.g., Grafana, Sentry).
• Solid understanding of web performance optimization, Core Web Vitals, and frontend architecture.
• Hands-on experience with testing frameworks (Jest, Vitest, Playwright).
• Strong foundation in data structures, design patterns, and maintainable system design.
• Excellent English communication — clear, structured, async-friendly.
• Experience working in Scrum teams and contributing to an iterative development process.

Bonus Points 🎁

• Experience with frontend platform initiatives (design systems, component libraries, or CI/CD improvements).
• Knowledge of micro-frontend architecture, monorepos, or large-scale React application structures.
• Hands-on experience with Playwright, Cypress, or other end-to-end testing frameworks.
• Experience in AI-assisted development tools (e.g., Copilot, Cursor, Codex) or static code analysis systems like SonarQube or Qodana.
• Experience with Next.js, TailwindCSS, or Storybook for scalable UI systems.

Who We're Looking For💡

You’re not just a frontend developer — you’re a craftsman who takes pride in creating scalable, maintainable, and high-performance web systems. You’re obsessed with engineering excellence and thrive in an environment where Clean Code, SOLID principles, and TDD aren’t buzzwords — they’re daily habits. You’ll collaborate with the team to set standards, automate workflows, and elevate our engineering culture.

Engineering Craftsmanship 🔨

• Clean, maintainable, well-tested code — pride in code quality.
• Attention to detail — including accessibility, UX polish, and micro-interactions.
• Balance of speed vs. sustainability — pragmatic but long-term minded.
• Culture of excellence — raises the bar for the team via thoughtful code reviews and best practices.

Soft Skills & Mindset 🪴

• Storytelling ability — explaining trade-offs to technical and non-technical audiences.
• Coachability — openness to feedback and continuous learning.
• Mentorship — willing to guide peers, share knowledge, and nurture juniors.
• Ownership mindset — takes end-to-end responsibility for features/platform.
• Entrepreneurial drive — proactive, resourceful, experiments with MVPs.
• User empathy — cares about how code impacts the end-user experience.
• Collaborative spirit — thrives in international, cross-functional teams.
• Influence without authority — can rally others around ideas.
• Growth mindset — eager to learn new technologies and expand scope.

Cultural & Market Awareness 💹

• Impact orientation — motivated by seeing features used at scale.
• Global collaboration — comfortable in a diverse, borderless team.
• German market insights (nice-to-have) — understanding of local users and expectations.

What’s In It for You? 🤩

• 🚀 Impact-Driven Work – Build features used by hundreds of thousands of active users, directly shaping product growth and user experience.
• 💡 Autonomy & Innovation – Turn ideas into MVPs, test quickly, iterate, and see the real impact of your work on users and the business.
• 🎯 Ownership & Influence – Go beyond coding by contributing to product direction and technical solutions, and help foster a culture where everyone feels empowered to contribute ideas.
• 🌍 Collaborative & Global Culture – Join a diverse international team, collaborating across disciplines with top-tier professionals.
• 📈 Growth & Learning – Gain mentorship, access to cutting-edge technologies, and professional development opportunities in a fast-moving, borderless team.

How to Apply

📩 Apply now by submitting your CV and a short note on why you’re excited to join Ideawise and contribute to Kaufmich’s international growth.

Our Commitment to DEI 🤝

At Ideawise, we believe diversity fuels innovation. We’re committed to creating an inclusive environment where people from all backgrounds can thrive. Different perspectives, experiences, and ideas drive the success of our ventures, shaping the future we’re building.
We welcome applicants of all races, ethnicities, religions, gender identities, sexual orientations, abilities, ages, and backgrounds. What matters most is your passion, expertise, and vision. Let’s build something great—together.