Windows Engineer | Mid | C#/.NET | Apps at Nord Security

At NordLayer, we’re building cybersecurity that scales with the business. A toggle-ready platform that helps modern teams thrive—without the security headaches. Trusted by 11,000+ global companies, NordLayer plugs into any tech stack and protects users across borders. Your impact? Helping businesses stay protected and moving forward with future-ready network security. The Desktop Applications department is a collaborative team of passionate and talented engineers focused on developing cutting edge secure networking cybersecurity solutions for businesses. We build on each other's ideas with security in focus and solve complex problems. Main Responsibilities • You will have a great team to mentor you: skilled Windows, Linux, macOS and mobile engineers • You will also be collaborating with designers, QA, and Product Owner, to extend and improve the functionality of our product • You will work on Windows development - Services, IPC, networking, GUI, APIs, drivers • Mentor others and share your expertise team-wise. Core Requirements • Proven Experience: minimum 3+ years of experience in Windows application development using .NET • Windows API Proficiency: deep familiarity with Windows API, including experience with multithreading, inter-process communication, and memory management • Debugging & Troubleshooting: excellent debugging and troubleshooting skills with experience using Windows debugging tools • Experience in Agile & Git • Profound English language skills. Bonus Points For • Good understanding of networking protocols (TCP/IP, UDP), VPN technologies (OpenVPN, WireGuard, IPSec), and network security principles • Good understanding of security best practices and a commitment to writing secure code. Salary Range • Gross Salary 3200 - 5600 EUR/Month. What We Offer Innovate with industry leaders Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world. Learn & grow Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.  Work in a next-gen Cyber City office Thrive in our bustling office, featuring ergonomic workspaces, modern meeting rooms, engaging events, and specialty coffee to fuel your day. Hybrid work Enjoy the flexibility with 3 office days and working from home for the remaining 2. Work from anywhere Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.   Physical well-being Boost your health with free-of-charge 24/7 gym access, onsite and online workouts, and consultations led by in-house Physical Well-Being experts.  Mental & emotional health Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic. Premium healthcare Receive private health insurance giving you peace of mind for your health needs. Extra days off Enjoy additional vacation days off as you grow with us. Plus, get extra days for sick leave, special occasions, or parenting needs.   Joyful moments – special treats Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.   Company events & team-building Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success. Workation Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together. Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes: [Upgrade to PRO to see link] We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we’ll let you know in advance. By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. As part of our recruitment process, we may use an AI-based application review tool to help assess applications based on skills and experience relevant to the role. This technology is used to support - not replace - human decision-making, and every application is ultimately reviewed by a recruiter. If you would like more information about how AI is used in this process or wish to exercise your rights under applicable data privacy laws, please contact us at [Upgrade to PRO to see contact]. Should you prefer to opt out of the automated evaluation, please submit your application directly to [Upgrade to PRO to see contact].