Senior TypeScript Developer – Automation

Role Overview

• Software development and creation of TypeScript-based automations and services
• Use of Connected App patterns for integrations
• Management of scopes, token rotation, app versioning and deployments
• API
• and event-driven architecture
• Use of HubSpot CRM APIs and utilization of webhooks & subscriptions
• Building robust retry, error-handling, and monitoring mechanisms
• Data modeling & CRM architecture
• Implementation of complex business logic in backend services
• Validation, enrichment and transformation of CRM data
• Establishing clean interfaces between HubSpot and core production systems
• Shaping the long-term CRM & integrations architecture

Requirements

• Strong knowledge of TypeScript, ideally with Nest.js / React.js
• Experience with REST APIs, asynchronous systems and event processing
• Understanding of clean API contracts, versioning and testing
• Systems thinking: automation & scalability
• Experience designing scalable CRM and integration architectures
• Ability to meaningfully integrate HubSpot into a larger system landscape
• Awareness of sensible automations, performance, limits, rate limits and data volumes
• Several years of experience with the HubSpot Developer Platform or comparable systems
• Practical experience with Connected Apps, OAuth 2.0, scopes and webhooks
• Very good German language skills (C‑level)

Tech Stack

• JavaScript
• React
• TypeScript

Benefits

• Technical responsibility instead of an admin role
• Real impact through architectural decisions
• Speed and freedom to make decisions in a motivated team
• Community and mobility with a subsidy for the Deutschlandticket
• Creative freedom without hierarchical layers
• Growth opportunities for personal and professional development
• Meaningful work contributing to the energy transition
• Fast learning curve and personal responsibility
• Innovative environment within an agile team