Senior .NET Backend Engineer for High-Impact SaaS

Yukisoftware; Rotterdam; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Training budget for certifications

28 vacation days (+5 can be bought)

Home-office budget

Company pension

Job summary

Yuki is hiring two Senior Back-end Developers to join our development teams; Team AO Ops and Team Platform. You will drive the core accounting engine, build scalable services, and contribute to internal tooling and system integrations.

You’ll mentor juniors, own critical features, optimize performance, and collaborate with cross-functional teams in a fast-paced, international scale-up environment. Join us to help shape the heartbeat of our platform.

Qualifications

• At least 4 years of experience as a back-end developer using .NET Technologies (VB.NET/C#).
• Experience mentoring junior developers (peer reviews, sharing best practices).
• Strong experience with relational databases (MSSQL).
• Experience with API development including HTTP, REST and .NET Web API.
• Experience with Agile methodologies (Scrum).
• Experience with Azure DevOps and/or GitHub.

Responsibilities

• Participate in the entire application lifecycle, focusing on optimizing and refactoring the existing codebases for maximum speed and scalability.
• Build readable, maintainable, and performant code using best software practices.
• Mentor and coach junior developers, providing guidance and code reviews.
• Develop features, APIs, system integrations, and data interfaces with external parties or Visma solutions.
• Collaborate with cross-functional teams and stakeholders to achieve project goals.

Skills

Autonomy

Analytical mindset

Mentoring juniors

Strong organizational skills

Tools

C#

VB.NET

ASP.NET

MSSQL

Azure DevOps

GitHub

REST API

Job description

Yuki is hiring two Senior Back-end Developers to join our development teams; Team AO Ops and Team Platform. You will drive the core accounting engine, build scalable services, and contribute to internal tooling and system integrations.

You’ll mentor juniors, own critical features, optimize performance, and collaborate with cross-functional teams in a fast-paced, international scale-up environment. Join us to help shape the heartbeat of our platform.