Senior Back - End Developer responsible for developing APIs and data projects for SEB. Collaborating with tech experts in a hybrid agile environment in Vilnius.
About the role
- Maintain and enhance core payment algorithms and C++ SDK integrations within a Windows-based client environment.
- Enhance our card reading capabilities in the SDK and optimize our message-based protocol between the SDK and our Cloud payment services.
- Develop high-performance, secure client-side components optimized for Windows OS.
- Ensure client-side architecture and development practices meet PCI MPoC and other security compliance standards.
- Implement secure coding practices, threat modeling, and vulnerability mitigation strategies.
- Support partner integrations through secure client-side implementation, testing, and technical assistance during deployment and troubleshooting.
- Mentor junior team members by promoting best practices in C++ development, Windows architecture, and secure software design.
- Collaborate with team to refine requirements, user stories, estimates, and development plans.
- Design, implement, and unit test Windows-native applications using modern C++ standards and development tools.
Requirements
- 8+ years of professional experience in software development with a strong focus on C++ in Windows desktop environments.
- 5+ years of experience designing and maintaining application data models and writing high performance SQL code.
- Bachelor's or advanced degree in Computer Science, Software Engineering, or equivalent practical experience.
- Solid understanding of Windows OS internals, including memory management, threading, and system APIs.
- Deep knowledge of Object-Oriented Design (OOD) and Object-Oriented Programming (OOP), with experience refactoring complex legacy systems.
- Proven ability to mentor junior developers, fostering a collaborative and growth-oriented team culture.
- Expertise in performance profiling, debugging, and optimizing high-volume client-side transactions.
- Hands-on experience with Windows security features, encryption protocols, code signing, and secure software distribution.
- Security-first mindset with experience designing and implementing software in regulated environments.
- Experience deploying and supporting enterprise-grade Windows applications, including installer packaging and update mechanisms.
Benefits
- 3 weeks of vacation leave per year to relax and recharge.
- 6 additional paid personal leave days per year to support your well-being.
- Comprehensive employee benefits program.
- Snacks and drinks to keep you energized throughout the day.
- Hybrid work model with 3 days on-site and 2 days work from home to promote flexibility and collaboration.
Job title
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