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Senior Engineer (MarTech) - Leaply

Warsaw🌐 Remote💼 Full-time🗓 2026-09-11 → 2026-09-25

Core

Building internal MarTech products including funnel builders, creative generation, and ad campaign automation for a global health app.

Role type

Senior Backend Engineer (MarTech)

Builds

Internal marketing infrastructure, LLM pipelines for creative analysis, and ad integration systems

Domain

HealthTech / MarTech

Deliverable

production ML models | product features

Required skills

Backend development in Node.js/TypeScript, API integration design, system architecture, data modeling, legacy code refactoring, ownership of service zones

Preferred skills

Experience with Meta/Google/TikTok ad APIs, LLM pipelines (Vertex/Gemini), BigQuery, GCP, Kubernetes, Terraform

Technologies

NestJS, TypeScript, PostgreSQL, GCP (GKE, Cloud Run, Cloud Functions), BigQuery, React, Next.js

Responsibilities

Lead architecture and development of a specific service zone, integrate with ad networks (Meta, Google, TikTok), develop LLM pipelines for creative generation, migrate marketing logic from Airtable, establish engineering standards and monitoring

Seniority

Senior, hands-on IC

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