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Backend Developer

Willemspark, Den Haag💼 Full-time🗓 2026-05-29 → 2026-09-07

Core

Developing and improving an event-sourced prototype register, focusing on back-end implementation and software architecture.

Role type

Backend Developer (Event Sourcing)

Builds

Event-sourced software prototypes with logging, history, context, and rectification features.

Domain

Software Engineering / Event Sourcing

Deliverable

production ML models | product features

Required skills

Event sourcing architecture, back-end development, software documentation, open source contribution, performance testing, technical problem identification

Preferred skills

Collaboration with product owners and architects, team feedback mechanisms, solution improvement recommendations

Technologies

Event sourcing patterns, logging frameworks, history management systems, context propagation tools, rectification mechanisms

Responsibilities

Design and implement back-end systems for event-sourced prototypes, document technical architecture and processes, contribute to open source codebases, collaborate with cross-functional teams to deliver working solutions, identify technical challenges and propose improvements, test system performance and reliability

Seniority

Mid-level, hands-on IC

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