
Windows Engineer | Mid-Senior | C#/.NET
Nord Security8 hours ago
Warsaw, PolandMid Level / Senior
Responsibilities
- Design, develop, and maintain Windows applications and system components, including services, IPC, networking, GUI, APIs, and drivers.
- Collaborate with designers, QA, and the Product Owner to improve product functionality from technical discussions through delivery.
- Own features end to end by researching solutions, writing maintainable code, and supporting releases.
- Contribute to architectural decisions and the product’s technical direction.
- Debug and troubleshoot Windows applications using Windows debugging tools.
Requirements
- Minimum 3+ years of experience in Windows application development using .NET.
- Deep familiarity with the Windows API, including multithreading, inter-process communication, and memory management.
- Excellent debugging and troubleshooting skills with experience using Windows debugging tools.
- Experience with Git.
- Strong English language skills.
- Understanding of TCP/IP, UDP, VPN technologies including OpenVPN, WireGuard, and IPSec, and network security principles is preferred.
- Understanding of security best practices and a commitment to writing secure code is preferred.
Benefits
- Training, mentorship, and opportunities for professional growth.
- Extra vacation days, sick days, and time off when needed.
- Fully covered private health insurance in Lithuania and Poland.
- Free Calm, Headspace, and Mindletic subscriptions plus resilience and mindfulness training.
- In-house gyms, sport cards, online workouts, and personal fitness guidance.
- Company-wide workation trip abroad.
- Work-from-anywhere flexibility.
- Gifts for birthdays, weddings, and new family members.
- Children’s summer camps and flexible scheduling for parents.
- Team-building activities and company events.
- Access to Nord Security’s Vilnius headquarters amenities, including a coffee bar, gyms, children’s room, music room, and massage chairs.
About Nord Security
Nord Security builds consumer and business cybersecurity software under the Nord brand, including NordVPN, NordPass, NordLayer, and NordLocker. It sells subscription-based privacy and network security tools—VPN, zero-trust access, password management, encrypted storage, and threat exposure management—to individuals and companies globally. Founded in 2012 and headquartered in Vilnius, Lithuania, its products serve millions of users.