Senior Full Stack Developer (70% FE)

About this role

Kendago is a global AdTech leader leveraging advanced digital optimization and creative technologies to profitably scale some of the world’s most successful DTC brands.

We are looking for a Senior Full-Stack Developer to join our growing R&D team. This role is a key addition to a small, high-impact engineering group building one of Kendago’s core technologies — a React-based funnel engine that sits at the heart of Kendago’s business activity and long-term technological vision.

This is a front-end–leaning full-stack role (approximately 70% front-end / 30% back-end), ideal for someone who thrives in an intensive, collaborative environment and enjoys building scalable, flexible systems that directly impact business performance.

Requirements:

• **6+ years of professional experience** as a Full-Stack Developer
• Minimum **5 years** of experience with **React** and modern front-end development.
• Minimum **2 years** of experience with **Node.js** or **Python development**
• **Strong understanding of TypeScript and modern JavaScript**
• **Strong understanding of databases, data structures, and data flow across web components**, with the ability to design and implement complex data processes
• Proven experience working on **complex, flexible front-end systems or engines**
• Strong system **design**, architecture, and problem-solving skills
• Experience working with **AWS** or similar cloud platforms
• Excellent English proficiency (spoken and written)
• Ability to work independently while maintaining close collaboration within a remote team

Responsibilities:

• Design, develop, and maintain scalable, high-quality web applications, with a strong focus on **front-end development using React**
• Take ownership of features end-to-end, from design and architecture to implementation and optimization
• Develop and maintain robust server-side services and APIs using **Python/Node.js**
• Work closely with team members in a **highly collaborative,...