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Full Stack Developer

Rotterdam, NL💼 Full-time🗓 2026-09-29

Core

Build and scale internal tools and AI-powered applications supporting Merkle's delivery, owning the application layer end-to-end.

Role type

Senior Full-Stack Developer (AI/Platform)

Builds

Internal tools, AI-powered applications, serverless backend functions, and modern frontends.

Domain

MarTech, Experience Economy, AI/LLM integration

Deliverable

production ML models | product features

Required skills

Full-stack development, JavaScript/TypeScript, React, Node.js, PostgreSQL, Docker, CI/CD, Multi-tenant architecture, Authentication/Access control

Preferred skills

Backend-as-a-service platforms (Supabase, Firebase), Alternative JS/TS runtimes (Deno, Bun), LLM APIs (OpenAI, Anthropic), SSE streaming, MarTech platforms (Adobe, Salesforce)

Responsibilities

Design and implement authentication and access control (SSO, SAML, OAuth2), Write and maintain database schemas and migrations, Build and manage serverless backend functions, Set up and maintain CI/CD pipelines, Build and maintain modern frontends, Debug and resolve issues across the stack

Seniority

Senior, hands-on IC

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