Amsterdam
20 Aug 2026
Senior Backend Developer (.NET / Azure) logo

Senior Backend Developer (.NET / Azure)

S4D

Senior Backend Developer (.NET / Azure)

S4D, a SaaS company providing an omnichannel operating system for Quick Service Restaurants, is seeking a Senior Backend Developer (.NET / Azure) in Amsterdam. The role involves end-to-end ownership of backend services, mentoring junior developers, and driving engineering excellence. Requires 5+ years of C#/.NET Core experience, Azure cloud expertise, and event-driven architecture skills.

On-siteFull-timeSeniorC#.NET Core

Salary

Not specified

Work Location

Amsterdam, North Holland, Netherlands, NL

Work Model

On-site

Experience Required

5 years

Employment Type

Full-time

Experience Level

Senior

Core Qualifications

Technical (Must-have)
C#.NET CoreAzure Service BusMassTransitMicroservicesEvent-Driven ArchitectureMicrosoft AzureUnit TestingTDDClean CodeSystem DesignRabbitMQApache Kafka
Soft Skills
MentorshipTeam LeadershipCollaborationKnowledge SharingCode Review

Preferred Qualifications

Technical (Nice-to-have)
KubernetesSQL ServerCI/CDAzure DevOpsGitHub ActionsCursorClaude Code

Key Responsibilities

  • Own backend services across their full lifecycle—from initial architectural design and technical scoping to coding, deployment, and operational health.
  • Coach and mentor junior and mid-level developers, conduct constructive code reviews, and help elevate engineering standards across the team.
  • Help define architectural patterns, design scalable microservices, and ensure our event-driven integration flows are resilient and decoupled.
  • Write clean, modular, and maintainable C# code targeting modern .NET Core runtimes.
  • Build robust asynchronous integrations using Azure Service Bus and MassTransit.
  • Champion automated unit testing, continuous integration, and proactive performance profiling.
  • Utilize AI coding tools to boost daily productivity and streamline system troubleshooting.
Senior Backend Developer.NETAzureSaaSQSRMicroservicesEvent-DrivenAmsterdamFull-timeOn-site