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Python Developer, Optimisation

Delta Freight Cloud

Actively hiring🇳🇱 Utrecht, NetherlandsHybridFull-time€58k – €82k /yr3–6 yrs expPython Developer
Posted 23d agoBe an early applicant

About the role

Delta Freight Cloud is hiring a Python engineer in Utrecht. This is a product engineering role in Python rather than a notebook role: services, scheduled work and the libraries around them, all of it tested and deployed like any other production code. If you have wanted Python work with real engineering discipline attached, this is that.

Dutch offers are quoted as an annual gross figure with the 8% holiday allowance normally paid on top, and the 30% ruling may apply if you are relocating.

What the work actually looks like

You will build and maintain services and pipelines, tighten the interfaces between them, and spend a fair share of your time on correctness — typed boundaries, tests that fail for the right reason, and data validation at the edges. There is regular pairing with the people who own the domain logic. The team works a hybrid week out of Utrecht, usually three days together and the rest wherever you work best.

What we look for

This is a mid-level role. You should already be able to take a loosely specified problem, break it down and ship it without close supervision. We are looking for command of the standard library, comfort with type hints and a real testing habit. Experience with FastAPI, Django or a serious data stack is welcome; the ability to reason about a slow query or a memory profile is what we will actually probe.

Working at Delta Freight Cloud

A four-day week is a normal request here rather than an unusual one, and genuine part-time contracts are available for this role. The range shown is the annual gross salary band for this role.

Responsibilities

  • Build and maintain Python services and scheduled jobs in production
  • Validate data at the boundaries so bad input fails loudly and early
  • Write tests that pin down behaviour rather than restating the implementation
  • Profile and fix performance problems with evidence rather than instinct
  • Keep dependencies and runtime versions current and boring

Requirements

  • Several years of Python in production, not only in notebooks
  • Comfortable with type hints, packaging and virtual environments
  • Experience with FastAPI, Django, Flask or an equivalent framework
  • SQL beyond the basics, including reading an execution plan
  • Familiar with containerised deployment and CI

Skills

Benefits

  • 8% holiday allowance paid each May
  • Pension scheme with employer contribution
  • Support with the 30% ruling for those relocating
  • NS Business Card or a travel allowance