Fullstack Developer

About SD WorxSD Worx is a leading European provider of Payroll & HR services with global reach. We have offices across Europe and in Mauritius. Our purpose is to bring people solutions to life, enabling organisations of all sizes to turn Human Resources into a source of value for both the business and its people.

Our people solutions cover the entire employee journey – from getting people paid to attracting, rewarding and developing talent. About the role: As Fullstack Developer, you will be part of a team responsible for building and maintaining our existing payroll application for the Belgian market: LOS21. Your customers are the hundreds of internal users of this application, and you play an essential role in improving their experience.

Together with your colleagues, you improve customer experience every day by following up on new legislation, and simplifying their processes. What do we have to offer? Stable employment conditions: permanent employment contract (after a 3-month probation period)Flexible working hours and remote work opportunitiesPrivate medical care (LuxMed)Cafeteria system / Sports cardLunch card (Edenred)Financial allowance for remote workLoans for employeesWorkation: possibility to work from any SD Worx location (4 weeks per year, EU only)Life insuranceHoliday allowanceFree language courses (during your working hours)Annual bonusIntegration eventsFree parking spaces for employeesReferral programPPK (Employee Capital Plans): 3.5% employer contributionLearning opportunities: through an individual development plan and professional trainingCareer 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? Cooperating closely with the team to understand requirements for legacy applicationsContributing throughout all phases of the product lifecycle, from ideation and development to maintenanceDevising solutions that are both functionally effective and technically robustTroubleshooting, debugging, fixing, and implementing solutionsParticipating in code reviews and knowledge-sharing activities within the teamProviding third-line support to end users when requiredWorking independently and proactively identifying solutionsHandling periods of intensive workload effectively and efficientlyCollaborating with server and network support departmentsWhat do you have to offer?5+ years of .

NET development experience within complex software environmentsPractical expertise in WinForms application developmentStrong SQL skills and database querying knowledgeProficiency with Git and modern version control practicesAbility to work across both front-end and back-end technologiesComfortable using Visual Studio as a primary development environmentFamiliarity with AI tools and their application in software developmentDegree in Information Technology or equivalent hands-on experience and expertiseFluent English communication skills, both written and spokenNice to haveKnowledge of DB2 databasesFamiliarity with NServiceBus messaging architectureExperience working with Entity FrameworkUnderstanding of Azure DevOps, CI/CD pipelines, and release processesExposure to ASMX web servicesExperience collaborating in Agile/Scrum development teamsSalary range information will be shared with candidates during the initial interaction with the Talent Acquisition team, either by phone or email. SD Worx values diversity and inclusion in the workplace. We welcome applications from all qualified candidates regardless of origin, nationality, gender, gender identity, sexual orientation, age, disability, religion, ethnic or social background, or stage of life.

All hiring decisions are made based on skills, experience and role‑related qualifications.