Windows Engineer | Mid-Senior | C#/.NET | Apps
- Role
- Backend
- Experience
- Senior
- Employment
- Full-time
Open to LT only. Set where you work from to check your eligibility.
No BS summary
Mid-senior Windows engineer with 3+ years in Windows application development using .NET/C#. Must know Windows API, debugging, Agile/Git, and English. Lithuania-based remote role.
Core skills
Required skills
Optional skills
Required languages
At Nord Security’s B2B team, we build cybersecurity products that enable businesses to protect themselves and their data.
From product and engineering to sales, marketing, and data — our teams work closely together to deliver secure, scalable solutions trusted by companies around the world.
Your impact? Empowering businesses everywhere to keep their people, systems, and data safe.
Main Responsibilities
- Design, develop, and maintain Windows applications and system components - Services, IPC, networking, GUI, APIs, and drivers.
- Collaborate with designers, QA, and the Product Owner to extend and improve the functionality of our product, from early technical discussions to final delivery.
- Take ownership of features end-to-end: research solutions, write clean and maintainable code, and see your work through to release.
- Contribute to architectural decisions and help shape the technical direction.
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.
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.
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.
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 privacy@nordaccount.com_. Should you prefer to opt out of the automated evaluation, please submit your application directly to_ career@nordsec.com_._
What you'll do
- 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 to final delivery.
- Take ownership of features end-to-end: research solutions, write clean and maintainable code, and see work through to release.
- Contribute to architectural decisions and help shape the technical direction.
What they require
- Minimum 3+ years of experience in Windows application development using .NET.
- Deep familiarity with Windows API, including experience with multithreading, inter-process communication, and memory management.
- Excellent debugging and troubleshooting skills with experience using Windows debugging tools.
- Experience in Agile and Git.
- Profound English language skills.
- Preferred: Good understanding of networking protocols, VPN technologies, and network security principles.
- Preferred: Good understanding of security best practices and a commitment to writing secure code.
- Candidates must provide accurate and complete information during the recruitment process.
- Candidates remain fully responsible for ensuring that submissions reflect their own qualifications, skills, and experience.
Benefits
- Work alongside global experts to build world-leading cybersecurity tools impacting millions of users around the world.
- Extensive online and offline training programs and other learning resources.
- Mentorship and career-switch opportunities to grow within the company.
- Next-gen Cyber City office with ergonomic workspaces, modern meeting rooms, engaging events, and specialty coffee.
- Work from any location when needed to power creativity and drive.
- Free-of-charge 24/7 gym access.
- Onsite and online workouts.
- Consultations led by in-house Physical Well-Being experts.
- Free psychologist consultations.
- Dedicated mental health events.
- Premium access to wellness apps like Calm, Headspace, and Mindletic.
- Private health insurance.
- Additional vacation days as you grow with the company.
- Extra days for sick leave, special occasions, or parenting needs.
- Special gifts for birthdays, anniversaries, weddings, and arrival of a new family member.
- Company celebrations, team-buildings, and knowledge-sharing events.
- Company getaway abroad with activities, live concerts, workshops, and time together.
Nord Security creates cybersecurity, privacy, and data products including VPNs, password managers, threat intelligence, and eSIMs for travel, trusted by millions worldwide.
What people say about this company
4.3/ 5