Quantitative Developer (C++ / Python) vs Core Banking Systems Specialist (Temenos / Mambu): Salary & Career Benchmarks in the Netherlands

In the Netherlands, Quantitative Developer (C++ / Python) roles typically command a higher median salary than Core Banking Systems Specialist (Temenos / Mambu) positions. According to our 2026 live benchmark data, a mid-level Quantitative Developer (C++ / Python) earns a median salary of €90K, whereas a Core Banking Systems Specialist (Temenos / Mambu) brings in roughly €68K (a gap of €22K at the median).

Seniority, tech stack, and location all move this gap. Senior practitioners in either discipline can exceed the upper range through specialist skills. See the skills premium section below for the specific certifications and tools that push offers to the top of the range.

While both positions are vital to a modern tech organisation, Quantitative Developer (C++ / Python) and Core Banking Systems Specialist (Temenos / Mambu) have fundamentally different daily workflows.

Quantitative Developer (C++ / Python) focuses primarily on building the pricing, risk, and execution libraries that quantitative trading and risk teams rely on, bridging research code in Python with production-grade C++ systems. Day-to-day work revolves around translating research prototypes into production C++ libraries, optimising numerical code for performance, building Python bindings for quant research teams, and validating pricing models against market data.

Core Banking Systems Specialist (Temenos / Mambu) focuses on configuring, customising, and maintaining core banking platforms such as Temenos or Mambu that handle account, ledger, and product processing for banks. Their time is spent configuring product and account rules in Temenos or Mambu, managing core banking upgrades and patches, integrating the core with payment and channel systems, and supporting regulatory reporting extracts.

Transitioning between these two paths is achievable but requires targeted upskilling.

Moving from Quantitative Developer (C++ / Python) to Core Banking Systems Specialist (Temenos / Mambu):

Moving from Core Banking Systems Specialist (Temenos / Mambu) to Quantitative Developer (C++ / Python):

Neither path requires starting from scratch. Professionals in both roles share underlying technology fluency; the gap is usually domain knowledge and specific tooling rather than core engineering fundamentals.

In the Netherlands in 2026, both roles are seeing demand, but with different drivers.

Quantitative Developer (C++ / Python) demand is high, particularly in Amsterdam's high-frequency trading and market-making firms alongside bank quant desks serving European derivatives markets. Core Banking Systems Specialist (Temenos / Mambu) demand is high, concentrated in Dutch banks and fintechs modernising core banking infrastructure onto Temenos or Mambu, led by employers such as ING and Adyen.

Workspace flexibility significantly impacts total compensation value in the Netherlands.

Quantitative Developer (C++ / Python) roles score 35% on our remote-friendliness index (Moderate). This is because library development work can be done off-site for parts of the sprint, and Amsterdam's market-making firms generally allow more remote flexibility than the bank quant desks do. Where in-office attendance is required, it is typically driven by close collaboration with quant researchers on live pricing models keeps this role largely office-based at Amsterdam trading firms.

Core Banking Systems Specialist (Temenos / Mambu) roles score 40% (Moderate). Configuration work can largely be done remotely, and Dutch banks under De Nederlandsche Bank oversight have generally kept this flexibility in place is the primary driver of flexibility. When office days are required, it is usually for go-live cutover windows and integration testing require on-site coordination with core teams, and De Nederlandsche Bank compliance sign-off pushes most Dutch banks toward a fixed office presence during migrations.