Low-level engineer | Mid-Senior | NordVPN

Nord Security; Poland; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Hybrid work: 3 office days, 2 remote

Private health insurance

Multisport card

Company events

Workation

Job summary

Nord Security is seeking a skilled Low-Level Engineer to design and develop high-quality Rust code for multiple platforms. You will tackle security, performance, and networking challenges at scale while collaborating with the Low-Level Team to deliver secure software solutions.

Strong candidates will have deep OS and networking knowledge, plus experience with GitHub, GitLab and CI/CD. Mentoring others and contributing to open-source are valued attributes.

Qualifications

• Desire to learn and improve; focused on results.
• Ability to self-drive software development and ownership.
• Solid software engineering knowledge in at least one strongly typed language (Rust/C/C++ preferred).
• Deep understanding of networking protocols: UDP, TCP, IP v4/v6, DNS.
• Experience with GitHub or GitLab and CI/CD fundamentals.
• Willing to mentor others and share knowledge.
• Knowledge of virtualization or containers.

Responsibilities

• Design and develop clean, maintainable, high-performance Rust code.
• Solve security, performance, privacy and networking challenges at scale.
• Apply clean code principles and industry standards.
• Collaborate with Low-Level Team members to deliver secure software solutions.
• Contribute to the libtelio open-source project.

Skills

Rust

Networking

Operating systems

GitHub

GitLab

CI/CD

Mentorship

Virtualization/Containers

Education

Computer science degree

Tools

GitHub

GitLab

Python

Docker

Linux

Windows

macOS

Job description

The world’s most advanced VPN, and a whole lot more.

If you’re a curious problem-solver who carves their own path, join the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN on the planet—tools that put privacy, security, and control back in people’s hands.

Your impact? Helping millions take back control of their online security, privacy, and data.

Low Level Team is reponsible for delivering commonly used components for multiple platforms, like Windows, Linux, Android, Apple.

Main Responsibilities

• Design and develop clean, maintainable, performant code in Rust;

• Solve difficult problems in security, performance, privacy and networking at scale;

• Apply clean code principles and work according to the best-in-class industry standards;

• Work together with the members of the Low-Level Teams to deliver high-quality, secure and performant software solutions;

• Get involved and contribute to growing the open source community around the libtelio library;

• Leave code better than you found it.

Core Requirements

• Desire to learn and improve;

• Ability to self-driven software development and understanding of code ownership;

• Solid software engineering knowledge in at least one strongly typed programming language (based on our experience C/C++ developers are jumping very easily into Rust shoes);

• Deep understanding of at least one operating system (firewalls, routing, networking, services, interrupts etc);

• Advanced knowledge of networking protocols - UDP, TCP, IP v4/v6, DNS etc;

• Experience with GitHub or GitLab and understanding of core CI/CD principles;

• Willing and eager to share knowledge and mentor;

• Virtualization (or/and containers) knowledge.

Don’t worry if you do not tick all the boxes, we would still be interested in hearing from you. What we are trying to say by those requirements is that you must be focused on results and be a specialist in some ‘particular’ area.

Bonus Points For

• Previous experience in C or C++;

• Previous experience with Python;

• 5+ years experience;

• Computer science degree.

Tools You Will Use

• Rust;

• Gitlab/Github;

• Python;

• Linux, Windows, MacOS, iOS, Android;

• Docker.

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.

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

Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card.

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.

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 [e-mail]. Should you prefer to opt out of the automated evaluation, please submit your application directly to [e-mail].