Windows Engineer · Mid-Senior · C#/.NET · Apps

📍 Vilnius, Lithuania
📍 Kaunas, Lithuania

EUR 38,400-84,000 per year

MIDDLE SENIOR

✅ Hybrid

Tech Stack
Tag name is followed by "@" symbol and proficiency level value. About proficiency levels:

1-2 — basic awareness. Minimal hands-on experience, and a rudimentary understanding of the technology's purpose;

3-6 — daily use. Comfortable and regular usage, capable of handling common tasks and challenges related to the technology;

7-9 — you are an expert, you can teach others, you know all the pitfalls and tricks;

10 — exceptional knowledge, comprehensive understanding, and adeptness in all aspects of the technology, including advanced problem-solving. Think twice before claiming or demanding such level.

API @ 2 Agile @ 3 Communication @ 2 Debugging @ 3 Git @ 3 Networking @ 3 Security @ 3

At Nord Security’s B2B team, you will help build cybersecurity products that enable businesses to protect themselves and their data.

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 extend and improve product functionality, from early technical discussions through final delivery.
Take ownership of features end-to-end by researching solutions, writing clean and maintainable code, and seeing work through to release.
Contribute to architectural decisions and help shape the technical direction.

At least 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, including experience with Windows debugging tools.
Experience with Agile and Git.
Profound English language skills.

Understanding of networking protocols such as TCP/IP and UDP.
Experience or knowledge of VPN technologies, including OpenVPN, WireGuard, and IPSec.
Understanding of network security principles and security best practices.
Commitment to writing secure code.

Online and in-person training, access to Coursera and Skillshare, mentorship, and internal career opportunities.
Extra vacation days, additional sick leave, special-occasion and parenting leave.
Premium private health insurance in Lithuania and Poland.
Free Calm, Headspace, and Mindletic subscriptions, resilience and mindfulness training, and mental health events.
In-house gyms, Multisport and Urban Sport cards, online workouts, and physical well-being support.
Company workations and the opportunity to work from different locations.
Gifts for birthdays, work anniversaries, weddings, and new family members.
Summer camps for children and flexible working arrangements for parents.
Team-building activities and company events.
Access to Nord Security’s Vilnius headquarters, including silent rooms, gyms, a game room, a music room, and a coffee bar.