C++ Developer

Posted 16 Days Ago
Be an Early Applicant
Katowice, Śląskie, POL
Hybrid
Junior
HR Tech
The Role
Maintain, refactor and modernize a high-volume, legacy C++ payroll backend (Btrieve, MFC). Work across the full product lifecycle, translate payroll rules into code, debug legacy systems, and collaborate with business experts and an international agile team.
Summary Generated by Built In

About SD Worx

SD 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:

Are you a C++ developer 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.

eBlox is a user-facing application, used by payroll professionals to manage their payroll processes.

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 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?

  • 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.

Essential Experience

  • 2-3 years of C++ development in complex software environments

  • Knowledge of libraries and frameworks such as STL, Boost, MFC

  • Experience with document and relational databases like Btrieve and MS SQL

  • Degree in IT or equivalent battle scars from the software trenches

Bonus Points

  • If you've survived legacy modernization projects

  • Familiarity with TDD, CI/CD (Azure DevOps, Jenkins, etc.) and Windows profiling tools like VTune

  • 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

Salary range information will be shared with candidates during the initial interaction with the Talent Acquisition team, either by phone or email.

Why Join SD Worx?

  • Flexible working: Flexible working hours and remote/hybrid working options – working arrangements are open for discussion

  • Learning & development: Access to professional training and an individual development plan

  • Career growth: Whether you want to deepen your expertise or broaden your career, there is room to grow within SD Worx

  • Collaborative culture: From many locations, we work as one – moving from better to best together

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.

Skills Required

  • 2-3 years of C++ development in complex software environments
  • Knowledge of STL, Boost, MFC
  • Experience with Btrieve and MS SQL databases
  • Degree in IT or equivalent practical experience
  • Experience with legacy modernization projects
  • Familiarity with TDD and CI/CD (Azure DevOps, Jenkins)
  • Experience with Windows profiling tools (e.g., VTune)
  • Visual Studio mastery
  • Python scripting for automation
  • Payroll domain knowledge (Belgian payroll rules)

SD Worx Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SD Worx and has not been reviewed or approved by SD Worx.

  • Flexible Benefits Benefits are frequently positioned as flexible and customizable, including cafeteria-style options and country-specific choices. This tailoring (e.g., mobility, extra insurance, or additional leave) is presented as a way to align rewards to individual needs.
  • Leave & Time Off Breadth Leave and time off options appear broad in several markets, with multiple leave types from day one and, in some countries, generous holiday allowances or the ability to trade for extra days. These provisions are often linked to strong work–life balance and flexibility.
  • Wellbeing & Lifestyle Benefits Wellbeing and lifestyle offerings include workation policies, wellness schemes, vouchers and discounts, and Employee Assistance Programs. Hybrid work practices and allowances further round out the day‑to‑day experience.

SD Worx Insights

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The Company
HQ: Antwerp
3,403 Employees
Year Founded: 1945

What We Do

We spark success at the heart of your business so you and your people can thrive. About SD Worx In today’s new world of fluid work, people want to be inspired by what they do and have the freedom to focus on what matters. Organisations need a dynamic, motivated workforce empowered by smart technology. As a leading European provider of integrated HR solutions, SD Worx turns HR into a source of value for their customers’ business and the people that work for them. SD Worx delivers HR solutions across the entire employee lifecycle, from paying employees to attracting, employing, rewarding and developing the talent who make businesses succeed. SD Worx powers performance through four core capabilities: software, outsourcing, consultancy and data-driven insights. SD Worx is the trusted leading European provider of end-to-end HR solutions for all organisations and workers. About 90,000 small and large organisations across Europe place their trust in the company and its +75 years' worth of experience. SD Worx calculates the salaries of approximately 5.7 million employees and ranks among the top five worldwide. The more than 7,500 employees operate in Belgium (HQ), Austria, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, Mauritius, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the UK. SD Worx achieved a consolidated revenue of EUR 1.058 billion in 2023.  More info on www.sdworx.com

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