MarTech Full Stack Developer

Role overview

Join Leadtech’s Marketing Technology & AdTech team as a MarTech Full-Stack Developer. You’ll build attribution and tracking systems across web and app environments, extend internal CRM and marketing tooling, and help ensure high-quality, available data for analytics.

Key missions

• Develop and maintain attribution and tracking systems for web and application environments.
• Collaborate with marketing teams, product owners, developers, and data stakeholders to define tracking structures and data.
• Bridge business needs and technical implementation, translating marketing requirements into engineering solutions.

Responsibilities

• Build and extend features in internal CRM and marketing tooling.
• Own data quality and availability to support downstream analysis.
• Design and maintain tracking schemas/event governance.
• Integrate with APIs and event-driven workflows to support tracking and attribution.
• Work with multiple stakeholders across engineering, data, and business.

Requirements

• Strong ownership mindset.
• Experience with cloud environments and serverless architectures.
• Backend strength with Node.js, TypeScript, and Python.
• Solid understanding of tracking, attribution, and event-based systems.
• Ability to work with SQL/NoSQL databases.
• Experience building/maintaining data pipelines.
• Experience with APIs (REST), webhooks, and server-to-server integrations.
• Knowledge of Google Cloud Platform ecosystem, including:
  • Cloud Functions (serverless workloads)
  • Cloud Scheduler (job orchestration)
• Experience with Datastore/Firestore for operational and lightweight storage.
• Experience with BigQuery for data warehousing and analysis.
• Experience with Pub/Sub for event-driven systems.
• Comfort working across technical and non-technical stakeholders.
• Strong fundamentals in HTML, CSS, and web performance.
• English communication skills (written and spoken).

Nice to have

• Spanish.
• Frontend experience with React, Next.js, Vue, or Astro.
• Experience with MMPs (Appsflyer, Adjust, Branch).
• Familiarity with ad platform APIs and tracking flows.
• Experience with subscription businesses and tools like RevenueCat.
• Exposure to CDPs, marketing automation, or product analytics tools.
• Experience with internal tools/CRMs/operational dashboards.
• Exposure to marketing/analytics tool ecosystems (CDPs, automation, product analytics).