Senior C++ 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?

Are you a seasoned C++ craftsman who gets genuinely excited when someone mentions stuff like “Btrieve” in 2025? Then we're inviting you to strengthen our eBlox payroll team - the powerhouse behind Belgium's most popular payroll solution for mid-to-large organizations. We process over 500,000 payslips monthly, which means your code directly impacts half a million Belgian workers getting paid correctly and on time. No pressure! 😉

What you'll actually be doing:

• Enhance, maintain and refactor our legendary C++ system - Work with a mature, battle-tested codebase that's been processing millions of payslips reliably for years
• Master our specialized technologies - You'll work with our optimized Btrieve databases and proven MFC interfaces that deliver durable performance for high-volume payroll processing
• Contribute across the full product lifecycle - From brilliant ideas to production deployment and ongoing optimizations
• Bridge business and tech - Work with our business experts to translate complex Belgian payroll requirements into elegant technical solutions
• Troubleshoot like a detective - Debug code that spans decades of development decisions (no direct customer contact required)

While our performance-optimized backend continues delivering rock-solid reliability, we're steadily modernizing our solution. We've already virtualized the GUI layer, giving users sleek web interfaces . Now we're actively refactoring the backend - this is where you come in to help us modernize the core while preserving everything that makes it so dependable.

Your profile and skills:

Essential Experience:

• 5+ years of C++ development in complex software environments
• Strong knowledge of Boost and MFC
• Experience with document and relational databases like Btrieve and MS SQL
• Familiarity with Windows profiling tools like VTune
• Degree in IT or equivalent battle scars from the software trenches

Bonus Points:

• If you've survived legacy modernization projects
• Familiarity with TDD and CI/CD (Azure DevOps, Jenkins, etc.)
• Visual Studio mastery - Our primary IDE
• Python scripting - Automation is your friend
• Payroll domain knowledge - Understanding why Belgian tax calculations are... Special

We want someone with a "Can Do!" attitude who can:

• Self-educate and adapt - Our codebase will teach you things they don't cover in university
• Work autonomously - You'll own your problems and solutions
• Communicate clearly - You'll be our beacon of trust in a complex and technical domain and explain technical decisions and report on progress to your team mates, your product owner and yes, also management
• Collaborate internationally - Our team spans Belgium (Antwerp) and Poland (Katowice), English is our lingua franca
• Embrace the agile mindset - Continuous learning, transparent feedback, and value delivery

Why you'll love working here:

• Actually important work - Your code ensures +500.000 real people get their paychecks, holiday pay, and 13th month bonuses 
• Vintage problems, modern tools - We use contemporary development practices on fascinatingly complex legacy systems
• Hybrid Setup: Work flexibly from home, with at least 1 monthly visit to our Katowice office and occasional extended office periods. Because sometimes you need to be in the same room to figure out why that 20-year-old calculation module does what it does.
• Stable employment conditions: permanent employment contract (after a 3-month probation period)
  
• Flexible working hours and remote work opportunities
• Private medical care (LuxMed)
• C