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Senior Backend Engineer - Health Tech (Kotlin/Python)

HybridEuropeSenior Licensed NL sponsor

Senior backend engineer building cloud-native services in Kotlin and Python for Evondos's medication management platform. Owns features end-to-end—from development and code review to production monitoring—within an international Scrum team, working hybrid from the Zoetermeer office with colleagues in Finland.

Cloud Cloud Native Kotlin Python Scrum

Nederlandse Spoorwegen (NS)

Senior Backend Engineer – Domain‑Driven ROB Platform

Nederlandse Spoorwegen (the Dutch national railway) is hiring a senior backend engineer to help rebuild its Regie Op Berichten (ROB) platform. Day to day you model a complex domain and build microservices with hexagonal architecture, tests and ops instrumentation in a DevOps team, using Azure resources like Service Bus and Cosmos DB.

Azure Cosmos Db DevOps Microservices

Corecom Consulting

Senior Java Backend Engineer - Payments

Senior Java backend engineer role focused on payments, based in the Netherlands. The posting body contains no substantive detail, so day-to-day responsibilities and the tech stack beyond Java are not specified.

AI Data Engineering Dynatrace Java Observability +1 skills

Senior Backend Engineer - Domain-Driven Microservices

Impact Vandaag seeks a senior backend developer to rebuild the Regie op Berichten (ROB) platform for Dutch railway operator NS in Utrecht. Day to day: building C#/.NET microservices, designing REST APIs, and implementing domain events with Azure Service Bus in a DevOps team focused on quality, observability, and recoverability.

API Azure Azure Service Bus C# DevOps +4 skills

Mid-Senior Java Backend Engineer — Hybrid Amsterdam

Thewhiteam is hiring a Mid-Senior Java Backend Engineer in Amsterdam for a hybrid role (2-3 office days per week). The engineer designs, develops, tests, and maintains Java backend applications within an engineering team, writing clean code; 3-6 years of experience and a bachelor's degree are expected.

Avance Consulting

Senior Blockchain Backend Engineer

Senior backend engineer at Avance Consulting in Amsterdam designing and building enterprise-grade Java/Kotlin (Spring Boot) APIs and microservices for digital asset products. Day to day: agile cross-functional work on blockchain platform integrations and SaaS solutions with a focus on security, reliability, and scalability.

Agile API Blockchain DevOps Java +4 skills

Senior Backend Developer (SaaS) – Hybride Werk & Groei

Ngage IT in Heerenveen seeks a Senior Backend Developer to fully own its SaaS backend: setting technical direction, shaping the architecture, doing R&D, and coaching colleagues. Day-to-day focuses on designing scalable systems that handle billions of requests per month and continuously optimizing backend performance.

Senior .NET Backend Developer – Hybrid, Microservices

Sterksen is seconding (detachering) a senior .NET backend developer to a client team in Utrecht, hybrid. Day to day: designing, building and maintaining cloud-native microservices with .NET, OpenShift and Azure DevOps in a DevOps team, integrating with external parties while upholding privacy and security standards.

Azure Azure DevOps Cloud Cloud Native DevOps +3 skills

Senior .NET Backend Developer | Azure | DDD | Microservices

HybridEuropeContractSenior

12-month contract (extendable) senior .NET backend role in Utrecht (hybrid) for a large Dutch mobility organization: rebuilding a mission-critical multichannel communication platform within a DevOps team using C#/.NET, DDD, event-driven microservices, and Azure (Service Bus, SQL, Cosmos DB), with strong testing and CI/CD focus. Dutch language required.

Agile AI AKS Angular API +34 skills

Senior Backend Developer (team Backbone)

Senior backend Java developer joining NDW's Team Backbone in an autonomous DevOps team, building APIs and backend services for the Netherlands' realtime road-traffic data platform and improving its scalability, performance and reliability using Docker, Kubernetes, CI/CD and public cloud. Hybrid role based in Utrecht, 32-36 hours, via a secondment (detachering) contract.

Angular API Backbone.js CI/CD Cloud +5 skills

Nederlandse Spoorwegen

Senior Backend Developer – Domein-Driven Berichtensysteem

Backend developer at Nederlandse Spoorwegen (Dutch national railway) building domain-driven C#/.NET microservices for ROB, a multichannel messaging service for employees. Involves Azure Service Bus integration, guarding bounded contexts, testing, and working in a DevOps culture with CI/CD.

Azure Azure Service Bus CI/CD C# DevOps +2 skills

Bright Cubes BV

Senior Python Backend Developer — Hybrid Work & AI Cloud

HybridEuropeSenior

Bright Cubes BV zoekt een Python Software Developer die samen met ervaren consultants werkt aan innovatieve, data-gedreven applicaties. Je bouwt schaalbare back-ends met Python, Django of FastAPI, zet cloud- en…

AI Cloud Django FastAPI Python

Software Development Engineer III, Fiat Payments (Backend)

Open 70d UKContractSenior

Senior backend engineer owning high-throughput fiat payment microservices (Node.js/TypeScript) that move money between traditional banking and crypto rails, using MongoDB, Redis, AWS, and Jenkins in a distributed systems environment.

API Authentication AWS Blockchain CI/CD +31 skills

Senior Backend Engineer (F/H) - 65K€ - 70K€

HybridEuropeSenior

**Contexte **Worklife est en phase de scale et souhaite renforcer son expertise et sa maturité technique. Nous recherchons un(e) Senior Backend Engineer expérimenté(e), qui apportera les meilleures pratiques de…

Agentic AI Airbyte Airflow Android API +30 skills

Senior .NET Developer - AI-Driven Backend, Hybrid

Dilaxia è una tech company in continua evoluzione specializzata nello sviluppo di soluzioni software tailor made, gestione di infrastrutture IT e cybersecurity. Verifichi che le sue competenze e la sua esperienza…

Agile AI Cybersecurity .NET

Senior C# Backend Developer – Milano, Onsite

AGAP2 Italia cerca un Backend Developer con C# da inserire nel team a Milano (Zona Bicocca). Aumenti le sue possibilità di ottenere un colloquio leggendo la seguente panoramica di questo ruolo prima di candidarsi. Il…

AMARIS GROUP SA

Senior Backend developer - Aeronautics | italian speaker (HYBRID)

RemoteEuropeSenior

Job description Interessato/a a questo ruolo? Può trovare tutte le informazioni pertinenti nella descrizione qui sotto. English,Italian Vuoi iniziare una nuova avventura professionale come Backend Developer Java in una…

AI Java Linux PostgreSQL Spring +1 skills

Senior Backend Developer (NET/C#) – API, Azure & SQL

Agap2 Italia è alla ricerca di un Senior Backend Developer con almeno 5 anni di esperienza nello sviluppo di applicazioni .NET in produzione, con solide competenze in C#, ASP.NET Core Web API, SQL Server e servizi…

API Authentication Azure Cloud C# +5 skills

ISA Digital Consulting

Backend Developer Senior Freelance – Java Spring – Full Remote

RemoteEuropeContractSenior

Gallicano Nel Lazio

ISA Digital Consulting, società di consulenza ICT, AI & Digital Consulting attiva da oltre 30 anni sul mercato italiano, europeo e mediorientale, ricerca un/a Backend Developer Senior da inserire in un progetto in…

AI Java Jsp MVC SOAP +3 skills

ISA Digital Consulting

Senior Backend Developer - Java Spring, Remote

EuropeFull-timeSenior

ISA Digital Consulting, società di consulenza ICT, cerca un Backend Developer Senior da inserire in un progetto in ambito Pubblica Amministrazione. Aumenti le sue possibilità di ottenere un colloquio leggendo la…

Java Jsp MVC SOAP Spring +1 skills