Senior .NET Backend Developer

Join our innovative R&D team as a Senior or Mid-Level Software Engineer, where you will take charge of enhancing and maintaining existing device programming tools tailored for automotive applications. Your expertise in device communication and firmware programming will be essential, as our software directly interfaces with hardware for firmware flashing, updates, and configuration.Your primary responsibility will involve the modernization of our legacy Delphi 7-based device programming tools, transitioning them to a robust C# / .NET architecture. These applications are pivotal for programming, updating, and configuring automotive device firmware while ensuring reliable communication through various interfaces. Your goal will be to establish a clear, maintainable, and scalable architecture that supports long-term development.Key Responsibilities:Own and enhance existing device programming tools for hardware device configuration and updates.Lead the migration of legacy tools from Delphi to a modern C# / .NET framework.Design, maintain, and optimize software solutions for device communication and firmware workflows.Implement and manage communication layers for hardware devices via Serial (COM), USB, and other interfaces.Refactor existing codebases to ensure clarity, maintainability, and scalability.Diagnose and resolve complex issues related to device communication and firmware interactions.Collaborate closely with firmware, hardware, and R&D engineers to ensure effective device programming and diagnostics.

Join the NordLayer team as we revolutionize cybersecurity for businesses worldwide.NordLayer offers a flexible, toggle-ready platform that empowers modern teams to work seamlessly, free from security concerns. Trusted by over 11,000 companies globally, our solution integrates effortlessly into any tech stack, safeguarding users wherever they are.Your Role: Play a crucial part in helping businesses maintain robust, forward-looking network security.As part of our Desktop Applications department, you'll collaborate with a dynamic team of skilled engineers to develop innovative cybersecurity networking solutions tailored for businesses. We foster a collaborative environment to tackle complex challenges with a strong focus on security.

Join NordLayer as we innovate cybersecurity solutions that grow with our clients.Our platform is designed for seamless integration into any tech stack, enabling modern teams to excel without the burden of security concerns. With the trust of over 11,000 global companies, NordLayer provides robust protection for users across the globe.Your contribution? Ensure businesses remain secure and progressive with our advanced network security solutions.As a member of the Desktop Applications team, you will collaborate with a dynamic group of skilled engineers dedicated to developing next-generation secure networking solutions tailored for businesses. We emphasize teamwork and innovative thinking, focusing on security while tackling complex challenges.

Join our dynamic team at Nordsec as a Mid-Level Software Engineer, specializing in Python development for our Quality of Service (QoS) team. In this role, you will be responsible for designing, implementing, and maintaining high-performance software solutions that enhance QoS across our platforms. You will collaborate closely with cross-functional teams to ensure our technology meets the highest standards of quality and reliability.We are looking for innovative thinkers who thrive in a collaborative environment and are eager to tackle challenging problems. If you are passionate about software engineering and dedicated to improving user experiences through technology, we want to hear from you!

Join the forefront of digital security with the world's leading VPN provider. Are you a passionate problem-solver eager to make a difference? Become a member of our innovative team responsible for developing Threat Protection Pro, the NordLynx protocol, and the most efficient VPN available. Our mission is to empower users with unparalleled privacy, security, and control over their online experiences.Your Contribution: Play a vital role in helping millions reclaim their online security, privacy, and data integrity.

Join us at Nord Security as we pave the way for a more secure cyber world.Our mission is to empower individuals and organizations to reclaim their online security, privacy, and data. Whether it's through our cutting-edge VPN services, user-friendly password managers, insightful threat intelligence, or innovative eSIM solutions for travelers, our talented teams are dedicated to transforming intricate challenges into trusted solutions, embraced by millions across the globe.In this pivotal role, you will be instrumental in helping people take ownership of their digital lives.

Join NordStellar, a leading cybersecurity platform, and help organizations stay one step ahead of cyber threats.As a Software Engineer, you will be integral to transforming threat intelligence into actionable insights, developing cutting-edge tools for dark web monitoring and attack surface management that security teams can trust.Your Role: Empower businesses to identify vulnerabilities and thwart cyberattacks, safeguarding both teams and customers.About NordStellar: Our innovative threat exposure management platform is designed to outsmart cyber threats, protect critical data, and prevent fraud. With NordStellar, businesses gain the insights they need to anticipate hacker actions. Our dedicated Dark Web Monitoring Team is a mission-driven, cross-functional group focused on identifying emerging threats and delivering vital insights.Join us in building technology that empowers proactive security leaders with an understanding of what hackers know about their businesses, enabling swift detection and response to potential cyber threats.

Join NordStellar, where we empower businesses to anticipate hacker insights before they strike.Become a part of our dedicated team that transforms threat intelligence into actionable strategies. From dark web surveillance to comprehensive attack surface management, we are crafting robust tools that security teams depend on to stay ahead of cyber threats.Your contribution? Assisting organizations in identifying weaknesses and thwarting cyber-attacks—ensuring safety for teams and customers alike.NordStellar is the latest innovation in our suite of advanced cybersecurity solutions. This pioneering threat exposure management platform is engineered to outmaneuver cyber threats, protect sensitive information, and combat fraud. NordStellar equips businesses with the resources necessary to outsmart hackers and safeguard their operations. Join us in creating technology that reveals what hackers are aware of regarding their targets.The Dark Web Monitoring Team is a mission-focused, interdisciplinary group dedicated to spotting emerging threats on the dark web and providing critical insights. This team emerged from Nord Security's Risk Management and Information Security departments and is currently focused on developing its own standalone cybersecurity offering, NordStellar. We leverage our expertise to empower proactive security leaders with essential insights: the intelligence hackers possess about their organizations. NordStellar enables companies to identify and react to cyber threats before they escalate. Our platform monitors numerous cybercrime communities and dark web sites, equipping cybersecurity teams with the vital information and tools needed for informed decision-making.

Join the forefront of cybersecurity innovation!Are you a proactive problem-solver ready to explore new horizons? Become a vital member of the team powering Threat Protection Pro, the groundbreaking NordLynx protocol, and the fastest VPN in the world—tools that empower individuals to reclaim their privacy, security, and control online.Your contribution? Enabling millions to restore their online security, privacy, and data ownership.Key ResponsibilitiesEnhance the NordVPN Windows desktop application, ensuring all features function seamlessly;Collaborate with a multidisciplinary team of developers, designers, QA specialists, and a Product Owner to innovate and maintain software for our globally recognized product;Utilize Microsoft’s tools and technologies to expand and refine our product’s capabilities—it's all about the code!Engage in a team-oriented approach to software development and problem resolution;Employ technologies and programming languages beyond .NET when necessary.Essential Qualifications4+ years of professional experience in software development as a .NET (C#) developer.Strong grasp of object-oriented programming principles.Familiarity with WPF, UWP, or similar XAML-based frameworks.Solid understanding of native Windows programming principles and APIs.Proficient in source code analysis and optimization techniques.Experience with unit testing and general software testing practices.Ability to swiftly adapt to changes and effectively tackle edge cases.Technologies You Will Utilize.NET/C#;XAML (WPF);MVVM;IPC;OpenSearch.

Join the innovative team at Hostinger as a Mid-Level Python Engineer! In this role, you will leverage your Python expertise to develop and enhance our cutting-edge web solutions. Collaborate with cross-functional teams to design scalable applications that improve user experience and drive our mission forward.

At NordStellar, we empower organizations to anticipate cyber threats before they occur.Become a pivotal member of our team that transforms threat intelligence into proactive measures. From monitoring the dark web to managing attack surfaces, we are developing essential tools that security teams depend on to stay ahead of cyber threats.Your role? Assisting businesses in identifying vulnerabilities and thwarting cyberattacks—ensuring safety for both teams and their customers.NordStellar is an innovative platform within our extensive array of advanced cybersecurity solutions. This state-of-the-art threat exposure management system is crafted to outsmart cyber threats, protect sensitive data, and prevent fraud. At NordStellar, we equip companies with the necessary tools to stay one step ahead of hackers and to outmaneuver them. Join us in creating technology that helps businesses understand what hackers know.

Join NordStellar, where we empower businesses by unveiling the insights hackers possess before they strike.As a pivotal member of our team, you will transform threat intelligence into actionable strategies. From monitoring the dark web to managing attack surfaces, we are developing tools that security teams depend on to stay ahead of potential threats.Your contribution? You will assist organizations in identifying vulnerabilities and thwarting cyberattacks, ensuring the safety of both teams and clients.NordStellar is the latest innovation in our suite of advanced cybersecurity solutions. This state-of-the-art threat exposure management platform is engineered to outsmart cyber threats, protect sensitive data, and prevent fraud. With NordStellar, organizations gain the tools necessary to anticipate hackers' moves and counter their strategies effectively. Join us in crafting technology that keeps businesses informed about the threats they face.

Join the forefront of digital security with the world's most advanced VPN solution.As a proactive and innovative problem-solver, you'll be part of the team that developed Threat Protection Pro and the NordLynx protocol, ensuring that our users have access to the fastest and most secure VPN available. Your mission? Empower millions to regain control over their online security, privacy, and data.Your Role: Drive the success of our mobile affiliate marketing initiatives by managing partnerships and optimizing campaign performance.

Join the forefront of digital privacy with us!As part of the innovative team behind Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN, you will empower millions of users to reclaim their online security, privacy, and control.Your role: You will be integral in developing robust components across multiple platforms, such as Windows, Linux, Android, and Apple.Main Responsibilities:Craft clean, maintainable, and efficient code using Rust.Tackle complex challenges in security, performance, privacy, and networking at scale.Adhere to clean code principles and the highest industry standards.Collaborate with Low-Level Team members to produce secure, high-performance software solutions.Engage and contribute to the open source community surrounding the libtelio library.Ensure code quality by leaving it in a better state than you found it.

Join our dynamic team at Nordsec as a Mid-Senior DevOps Engineer. In this role, you will play a pivotal part in enhancing our deployment processes, working collaboratively to optimize our infrastructure and automate workflows. You will have the opportunity to engage with cutting-edge technologies while driving efficiency and stability across our systems.

Join Saily, an innovative leader in mobile connectivity, dedicated to eliminating the hassle of staying connected while traveling. We offer lightning-fast, secure mobile data across 200+ destinations without any roaming fees or plastic SIM cards. With millions of paying customers and countless travelers exploring Saily at any given moment, we are on a mission to enhance user experiences.At Saily, we cultivate an AI-native Product Engineering culture that empowers our engineers to take ownership of the entire product lifecycle, from ideation to production. Our AI agents streamline coding processes and tackle repetitive tasks, allowing engineers to focus on impactful solutions. Collaboration, curiosity, and continuous improvement are at the heart of our operations, with a customer-centric approach guiding our decisions.We prioritize personal and professional growth, valuing contributions over rigid hierarchies, and ensuring that our team members have the autonomy to excel in their roles. Join us in creating seamless, connected journeys for our customers.

Role overview This Mid-Level Office Manager position at Nord Security focuses on keeping daily operations efficient and organized in the Vilnius office. The role blends resource management, administrative support, and practical help for team members to create a productive work environment. What you will do Manage office resources and keep supplies stocked Coordinate administrative tasks and manage schedules Assist staff with daily needs and requests Contribute to a positive company culture through daily interactions Identify opportunities to make office operations more efficient Location The position is based onsite in Vilnius.

Join Nord Security and Shape a Safer Cyber Future!At Nord Security, we empower individuals and organizations to regain control over their online security, privacy, and data. Our innovative solutions, ranging from VPNs and password managers to threat intelligence and eSIMs for travel, are designed to simplify complex challenges and are trusted by millions globally.In this pivotal role, you'll enable users to confidently navigate their online experiences.Key ResponsibilitiesPerform penetration testing on web and backend applications, networking components, and crypto services—whether it’s white, grey, or black box testing, we want your expertise!Utilize your reverse engineering skills to identify vulnerabilities during code reviews of cutting-edge security solutions.Design and develop solutions to address complex security challenges from the ground up.Create scripts and security automation tools to improve penetration testing processes.Collaborate closely with web and backend developers, and other tech enthusiasts, to validate, assess, and understand vulnerabilities, working towards effective mitigation strategies.Share your security knowledge with hundreds of colleagues!Core QualificationsExtensive experience in conducting application security assessments, encompassing planning, testing, and vulnerability reporting.Proficient in using security scanners, static code analyzers, and debugging tools.Solid understanding of networking and cryptographic principles, including TLS, PFS, PKI, and digital certificates.Proven ability to perform manual security code audits.Prior experience with fuzzing, reverse engineering, and exploit development.Experience in collaborating with application developers to validate, assess, and mitigate vulnerabilities effectively.Strong knowledge of application and infrastructure testing methodologies.Familiarity with secure architecture design and assessment, particularly manual penetration testing.Bonus points for contributions to the security community!

Join Nord Security as a Low-Level Engineer specializing in server-side development. We are seeking a talented mid-senior level engineer to contribute to our innovative projects. In this role, you will be responsible for building and optimizing backend systems that support our world-class VPN services.The ideal candidate will have a strong understanding of low-level programming and a passion for creating efficient, robust server-side applications. You will work in a collaborative environment, utilizing cutting-edge technologies to enhance our existing infrastructure and develop new features.