C Developer
Software Engineering
Warsaw, Poland
Posted on Jul 26, 2026
🚀 Are you curious, motivated, and forward‑thinking?
At FIS, you’ll work on financial software that empowers corporations worldwide to process millions of transactions securely and reliably—every single day.
👥 About the Team
You’ll act in an advanced professional role, contributing to the development and support of innovative fintech solutions used by leading financial institutions across Europe. The role involves direct customer interaction for system analysis and support, with occasional on‑site travel.
💼 What You’ll Be Doing
- Participate in all phases of product development, implementation, and support
- Actively contribute to Agile ceremonies (planning, stand‑ups, retrospectives, story telling)
- Develop new features and enhance existing functionality with a strong focus on quality
- Support clients on medium to large‑scale projects
- Coach and mentor junior colleagues
🛠️ Technology Context
- UNIX / Red Hat Linux
- ANSI C/C++ (UNIX), Bash, Perl, PL/SQL
- Git, Maven/Gradle, Helm, Docker, Kubernetes, Jenkins (or similar tools)
- Cloud deployments on AWS and Azure (development and client environments)
✅ What You Bring
- Strong experience in C development and relational databases
- Excellent analytical and problem‑solving skills
- Self‑motivated, collaborative, and communicative mindset
- Experience working in Agile environments
- Ability to work independently on complex projects
- Fluent spoken and written English
- Willingness to travel when required
🎯 What We Offer
- Competitive salary and benefits
- Flexible working hours
- An international, collaborative work environment
- Challenging projects with real opportunities to learn and grow
👉 Ready to make an impact in fintech? Let’s talk.