Senior X++ Developer

SD Worx is a leading European provider of Payroll & HR services with global reach. We have offices in Europe and Mauritius. Our goal? We bring people solutions to life and turn HR into a value source for our clients and their people.

Our people solutions span the entire employee journey, from salary payment to attracting, rewarding, and developing talent. Are you ready to join us?

About the role:

Join our Implementation Team team building SD Worx’s top‑tier payroll solution for large Belgian organizations—powered by Microsoft Dynamics 365 F&O.

You’ll help drive the product forward, experiment with new ideas, and explore fresh tech. Think of it as crafting clean code with a side of innovation.

What do we have to offer?

• Stable employment conditions: permanent employment contract (after a 3-month probation period)

• Flexible working hours and remote work opportunities

• Private medical care (LuxMed)

• Cafeteria system / Sports card

• Lunch card (Edenred)

• Financial allowance for remote work

• Loans for employees

• Workation: possibility to work from any SD Worx location (4 weeks per year, EU only)

• Life insurance

• Holiday allowance

• Free language courses (during your working hours)

• Annual bonus

• Integration events

• Free parking spaces for employees

• Referral program

• PPK (Employee Capital Plans): 3.5% employer contribution

• Learning opportunities: through an individual development plan and professional training

• Career growth: whether you want to become more of an expert in your field or expand your knowledge horizontally, there’s always room to grow within SD Worx!

Which tasks can you expect?

• Become a true expert in our application — you’ll dive in, dissect it, understand it, feel it.

• Design and build new features and APIs in X++

• Enhance and maintain our D365FO add‑on “X‑Tend”

• Develop and ship clean updates, fixes, and improvements.

• Hunt down bugs and unravel the kind of issues that make others sigh loudly.

• Work with analysts, the PM and stakeholders to turn needs into sharp, workable solutions.

• Help build a squad that works autonomously, makes bold decisions, and consistently delivers value.

What do you have to offer?

Must‑haves:

• Strong experience with Dynamics 365 FinOps

• Hands‑on mastery of X++

• Comfortable with Visual Studio, Azure DevOps, LCS, MS SQL

• Fluent English

Bonus points:

• Dynamics AX2009

• C# experience

• ATL-based automated testing

• Power Platform (Apps, BI, Automate) embedded in FinOps

• Azure SQL, Data Lake, Dataverse

• Build pipeline experience in Azure DevOps

Who you are ?

You’re someone who:

• Has a hunger to learn — fast, often, gladly.

• Takes ownership — “not my problem” isn’t in your vocabulary.

• Communicates clearly and isn’t afraid to speak up.

• Enjoys feedback (giving and receiving).

• Has the curiosity to explore and the discipline to finish.

Who you’ll work with

A tight, international squad: developers, functional analysts, testers, project managers, and a service/business manager — all driven, supportive, and ready to welcome you. We’re powered by people, not labels. Whatever your background or story — you’re welcome here.

From many places, we work as one, moving from better to best together.

SD Worx embraces diversity in the workplace. Diversity brings inspiration and innovation to our company. We particularly welcome applications from qualified talent, regardless of origin, nationality, gender, skin color, ethnic and social background, religion, age, disability, sexual orientation, or stage of life.