Senior JavaScript Developer

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior JavaScript Developer (MarTech) in Finland.

This role is an exciting opportunity to build and maintain high-performance marketing technology platforms in a fast-paced, international environment. As a Senior JavaScript Developer, you will primarily focus on backend development while contributing to full-stack projects that power landing pages, experimentation platforms, and analytics tools. You will work with modern technologies such as , TypeScript, MongoDB, Kafka, and ClickHouse, designing REST-like APIs and ensuring system reliability and scalability. The position offers collaboration with distributed teams, ownership over CI/CD pipelines, and involvement in performance optimization and testing strategies. Your contributions will directly impact marketing automation capabilities and the performance of high-traffic digital products.