Hybrid Backend .NET Engineer — Banking Onboarding

Keytrade Bank SA; Brussel Hoofdstad; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Hybrid work policy

Agile culture

Green surroundings

Inclusive workplace

Competitive benefits

Job summary

Keytrade Bank is building modern back-end services in a microservices architecture on AWS, applying Domain Driven Design. The role focuses on onboarding, prospect and personal data management with a strong emphasis on testable, scalable APIs.

You will join a cross-functional team, collaborating with frontend, DevOps and analysts to deliver features in two-week sprints, while enjoying a flexible remote policy and a balanced hybrid work arrangement.

Qualifications

• Academic background in a technical field or proven 5+ years back-end experience.
• Strong analysis skills and ability to translate business requirements into technical solutions.
• Proven skills in object-oriented design and API development.
• Experience with agile delivery and collaborative teamwork.

Responsibilities

• Be a team player in the OPPA Feature Team (Onboarding, Prospects, Personal Data & Access Management).
• Develop and refactor back-end services deployed on AWS using Domain Driven Design.
• Collaborate with frontend, DevOps, testers, product owner and scrum master in two-week sprints.
• Contribute to smoother, more user-friendly client onboarding across web and mobile.
• Ensure code quality with testing, CI/CD and robust integration to services like RabbitMQ.

Skills

Back-end development

C# / .NET

Domain-driven design

API design (REST/gRPC)

Relational databases

Unit testing

CI/CD

Git

English proficiency

Agile / Scrum

Independence

Education

Technical degree or 5+ years experience

Tools

NHibernate

Entity Framework

NServiceBus

RabbitMQ

AWS basics

Job description

Keytrade Bank is building modern back-end services in a microservices architecture on AWS, applying Domain Driven Design. The role focuses on onboarding, prospect and personal data management with a strong emphasis on testable, scalable APIs.

You will join a cross-functional team, collaborating with frontend, DevOps and analysts to deliver features in two-week sprints, while enjoying a flexible remote policy and a balanced hybrid work arrangement.