Senior Fullstack (.NET/Python) Engineer

Jimmy Technologies

Contract type

Freelance

Work mode

Remote · EU

Experience

Senior · Not stated

Level inferred from job title

Job description

Senior Fullstack Engineer (.NET/Python) for a consultancy's delivery to a Dutch insurance client, building middleware APIs and agentic CDD services for anti-financial-crime and enterprise AI platforms. Long-term remote-first contract for EU-based candidates.

At a glance

Employment: Contract · Independent contractor
Work mode: Remote · EU

What you'll do

Build the middleware APIs between Salesforce / API management, Databricks or SQL databases, and legacy cores such as AS400.
Build and harden the Agentic CDD services: asynchronous client-check API with callback, retries instead of dropped messages, and safe write-back with an on/off switch.
Extend the Python capability modules and the connector framework.
Package and deploy as containers or Databricks bundles through the CI/CD pipeline.
Write unit and integration tests, and fix issues found in testing and in production.

What we're looking for

C# / .NET (Core Web APIs)
Python (FastAPI or similar)
Containerized packaging (Docker), Azure DevOps, CI/CD, Git
Integration with enterprise systems (REST, messaging/queues)
Strong analytical and problem-solving skills, with the ability to diagnose and resolve complex issues under pressure.
Excellent communication skills, capable of explaining technical concepts to both technical and non-technical stakeholders.
Ownership mindset – the ability to work independently and as part of a team while taking full responsibility for assigned tasks.
Proactive attitude – the ability to escalate issues early, follow up on blockers, and support teammates when needed.
Constructive feedback approach – ability to receive and provide feedback in a way that improves overall team performance.

Nice to have

Databricks Asset Bundles (DAB)
Kubernetes
LangGraph or other LLM frameworks
Insurance or banking experience

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