Mid to Senior Backend Engineer | Threat Protection | Go

Join the forefront of online security technology! Are you a passionate and innovative problem-solver? Become a pivotal member of the team behind Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN. Our mission is to empower users by enhancing their privacy, security, and control online.Your impact? You will be instrumental in helping mi…

Join the forefront of online security with the world's leading VPN and more. Are you a passionate problem-solver eager to make a difference? Become part of the innovative team behind Threat Protection Pro, the cutting-edge NordLynx protocol, and the fastest VPN available—solutions that empower users with privacy, security, and control over their digital lives.Your contribution? Support millions in reclaiming their online security, privacy, and data.Join the Notification Center Team - Shape the Future of In-App Notifications!As a Senior Backend Engineer on our Notification Center Team, you will be integral in designing and maintaining crucial microservices that facilitate in-app notification delivery. Our team is essential in providing a backbone for a multitude of features across various teams that depend on seamless notification delivery. Our mission is to closely collaborate with other Nord teams to pave the way toward a scalable future.Are you prepared to tackle the challenges of scalability, cost-efficiency, clean code, maintenance, and ensuring a stable, functional service that serves as a key component behind many features of NordVPN, NordPass, and NordLayer? Make an impact and help shape the future of NordVPN and its sister products. Join our team of skilled engineers committed to technical excellence today!

Join the forefront of online security innovation.Are you a passionate problem-solver looking to contribute to cutting-edge technology? Join our team at Nord Security, where we develop advanced tools like Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN. Our mission is to empower individuals by enhancing their privacy, security, and control over their online presence.Your contributions will directly impact: enabling millions to reclaim their online security, privacy, and data integrity.As a vital member of the Nord Checkout team, you will help develop and maintain critical services that streamline the final stages of the user purchase journey. Our daily tasks involve scaling our services and rolling out new features to ensure a secure, fast, and user-friendly experience. Additionally, we support other teams by providing access to user purchase data.Key Responsibilities:Design and develop robust, scalable, and secure microservicesWrite high-quality, maintainable code that performs well under loadCollaborate with team members, QA, DevOps, and security teams on daily tasksSuccessfully deliver new features and fixes on scheduleCreate technical designs and maintain thorough documentationEngage in R&D activities to tackle new and complex challengesExhibit ownership of tasks from inception to completionContinuously pursue professional development and learning.

Join our dynamic team of over 500 professionals at Oxylabs, where we specialize in developing state-of-the-art proxy and web data scraping solutions for renowned businesses worldwide, including numerous Fortune 500 companies.What Awaits You:As a Senior Backend Engineer, you will tackle complex challenges and manage our robust infrastructure that handles over 60PB of data traffic monthly. Below are some impressive metrics reflecting our scale and maturity: - 6PB+ of Ceph storage - 60PB+ monthly data traffic processed through our systems - Over 300,000 service requests per second - More than 500,000 Kafka messages streamed per second

Join our mission at NordProtect to create a comprehensive identity theft protection service.Become part of the innovative team behind Nord Security’s latest offering, integrating dark web monitoring, credit tracking, and identity theft insurance into a robust platform.Your role will have a significant impact. You will assist individuals in safeguarding their identities, detecting threats promptly, and enabling resilient recovery.Introducing NordProtect: an all-encompassing digital shield against identity theft, financial fraud, and online scams. Our service provides extensive monitoring, rapid detection, swift recovery, and dependable insurance, ensuring unparalleled security and peace of mind for both businesses and individuals. The true champions behind this advanced solution are our dedicated cybersecurity and insurance professionals. Join us and be a pivotal force in maintaining the safety of digital identities.Key ResponsibilitiesDesign and implement microservices tailored to the needs of users seeking identity theft protection, ensuring the utmost security for sensitive personal information.Collaborate with cross-disciplinary teams to facilitate seamless integration and utilization of microservices throughout Nord Security’s product ecosystem, enhancing user experience.Provide mentorship and technical support to colleagues, fostering a culture of best practices within the engineering team.Contribute meaningfully to the team’s vision and long-term objectives.Engage in research and development initiatives to explore and adopt the latest technologies.Encourage open communication and collaboration among team members and across various engineering, product, and design teams.Demonstrate a collaborative spirit by actively participating in discussions, re-evaluating ideas, and embracing redesigns that lead to collective success.Essential QualificationsExtensive experience with backend technologies, preferably in Go.Proficient in system design with a strong understanding of design patterns and their appropriate applications.Solid grasp of microservices architecture and best practices for building scalable systems.Experience in mentoring junior developers and fostering a collaborative team culture.Strong problem-solving skills and the ability to adapt to rapidly changing environments.Excellent communication skills and a proactive approach to teamwork.

The R&D team at Companial is seeking a talented Senior .NET Backend Developer to enhance our skilled team. We are committed to delivering top-notch quality by employing best practices and advanced tools. If you are passionate about personal growth, eager to innovate, and willing to help improve our existing systems for our clients, you are exactly who we want to add to our dynamic environment. This position is flexible, allowing you to work from our offices in Vilnius, Kaunas, or remotely.Join us if you thrive in a multicultural setting, enjoy tackling new challenges, and aspire to contribute to making IT a better industry!

Join our innovative team at Nordsec as a Mid-Level Backend Engineer! In this role, you will contribute to developing and enhancing security tools that safeguard our users' data. We are looking for a passionate individual with a strong background in PHP who is eager to tackle challenging problems and collaborate within a dynamic team.

Join the forefront of digital privacy and security.Become a part of the innovative team responsible for Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN—solutions that empower users to regain control over their privacy, security, and data.Your role? Assist millions of users in reclaiming their online security, privacy, and data management.Our Payments Team is the backbone of Nord Security's global operations. We design, build, and maintain systems that ensure secure and smooth payment experiences for users across the globe. Collaborating with a diverse array of international payment providers, we tackle challenges related to high-load environments, complex payment processes, and recurring subscription management.This is an environment for engineers who excel at solving intricate problems, creating robust systems, and continually enhancing their skills. You will develop essential components that directly influence how customers handle payments and manage subscriptions for our highly regarded products.If you seek a team that champions ownership, creativity, and technical excellence, you will thrive here.

Join NordPass in Revolutionizing Password Security!At NordPass, we strive to make password security effortless and accessible. We believe that logging in should be both safe and simple. Be part of the NordPass team—a trusted password manager utilized by over 7 million users and more than 10,000 global enterprises to safeguard their credentials, payment information, and sensitive data.Your contribution? Empower millions to protect their digital identities by designing innovative and secure login solutions.Your Responsibilities:Design, develop, and maintain security-focused backend services, including breach detection and email masking, ensuring high standards of quality, performance, and accuracy.Utilize AI-driven workflows daily for code generation, debugging, and performance optimization, while continuously assessing new tools to enhance team productivity.Establish best practices for AI use within the team, ensuring that AI-generated code adheres to the same standards as manually written code.Engage in system design and architectural discussions, advocating for secure, scalable, and maintainable solutions.Collaborate with cross-functional teams, including Frontend, Android, iOS, and Backend engineers, to deliver comprehensive features across all platforms.Take full ownership of your work from design through to production, ensuring accountability for uptime, reliability, and code quality.

Join the forefront of digital security with the world’s most advanced VPN! Are you a driven problem-solver eager to innovate? Become part of the team that developed Threat Protection Pro and the NordLynx protocol, ensuring users enjoy the fastest VPN service while reclaiming their privacy, security, and control online.Your Contribution: Empower millions to regain control over their online privacy, security, and data.About Our Payment Team: We are the backbone of Nord Security’s global business, crafting and maintaining systems that facilitate secure and seamless payment experiences for users worldwide. Collaborating with a diverse array of international payment providers, we tackle challenges associated with high-load environments, intricate payment flows, and recurring subscription payments.This is an ideal environment for engineers who relish solving complex challenges, designing robust systems, and honing their skills. You will develop essential components that influence how customers manage their payments and subscriptions for our globally recognized products.If you seek a team that champions ownership, innovation, and technical mastery, you will find your place here.

nfq is seeking a Senior PHP Software Engineer to help build web applications for clients. This role is based in Vilnius or Kaunas and centers on delivering digital solutions as part of a collaborative team. Role overview This position focuses on PHP development for web projects. The Senior Software Engineer will contribute technical expertise to help shape client-facing applications and support the team in achieving project goals. What you will do Develop and maintain web applications using PHP Work closely with other engineers and team members to deliver solutions Apply problem-solving skills to support client needs Requirements Strong experience with PHP Ability to work effectively in a team setting Interest in building quality digital products

At SumUp, we celebrate the everyday hero—the passionate small business owner who embodies courage and determination. Our mission is to empower these heroes with powerful and user-friendly financial solutions designed to help them thrive. With a founder's mentality and a collaborative 'team-first' culture, our diverse teams across Europe, South America, and the United States work together to support small business owners in their pursuit of success.The Global Bank team is responsible for developing the core infrastructure and services that provide merchants with digital banking solutions, making financial management seamless and reliable.Within this team, the Balance Management Squad is currently undertaking a significant initiative to modernize and consolidate our balance management systems across Europe. The next major project involves creating a global transaction history service—a unified platform that offers merchants a consistent and transparent overview of their financial activities.As a (Senior) Backend Engineer, you will play a crucial role in modernizing existing systems while ensuring a balance between innovation and stability. You will collaborate with teams across various regions to build reliable services that accommodate diverse market regulations.Our technology stack includes Go, AWS, Kafka, PostgreSQL, and Kubernetes, complemented by robust observability tools such as Prometheus, Grafana, and Honeycomb. We also utilize AI-assisted development tools like Cursor and GitHub Copilot to enhance our workflow.Our engineering culture emphasizes ownership and responsibility, adhering to a “build it, run it, improve it” philosophy. Engineers enjoy clear scope and autonomy, with decisions made collaboratively and documented for transparency.The Vilnius team is integral to the Global Bank domain, owning production systems, influencing technical direction, and collaborating with colleagues across SumUp’s global offices to drive essential merchant banking capabilities. Join our Vilnius Team today (Vilnius office).

About the Role Wix2 is looking for a Senior Backend Developer focused on frameworks to join the team in Vilnius. This position centers on designing and building backend solutions that support a range of applications. What You Will Do Design and implement backend frameworks for new and existing products Work with other engineers to solve complex technical challenges Contribute to a collaborative team environment Location This role is based in Vilnius.

Bazaarvoice is looking for a Senior Software Engineer to join the Partnerships team in Vilnius. This position centers on building software that supports partners and contributes to business growth. Role overview As part of the Partnerships group, this engineer will work closely with colleagues from different disciplines. The focus is on developing new solutions and improving existing systems to support a wide range of clients. Collaboration Expect regular collaboration with cross-functional teams. The role calls for strong technical skills and the ability to translate business needs into effective software. Impact Work produced in this role directly supports Bazaarvoice partners and helps drive company objectives forward.

NFQ Technologies is a pivotal technology partner for HomeToGo, comprising a dedicated team of skilled software engineers and data science experts committed to driving innovation in the vacation rental marketplace. As we expand HomeToGo’s technology team in Lithuania, we invite talented professionals to become part of our dynamic and growing company.HomeToGo stands as the leading marketplace for vacation rentals, featuring millions of listings from thousands of reputable partners such as Booking.com, Vrbo, and TripAdvisor. Our platform offers a diverse range of accommodations, including vacation homes, cabins, beach houses, apartments, condos, houseboats, castles, farm stays, and more. By integrating price, destination, dates, and amenities, HomeToGo helps users find their ideal lodging for any global adventure.Founded in 2014, HomeToGo operates localized applications and websites across 25 countries in Europe, North America, South America, Australia, and the Asia-Pacific region. The company also oversees brands like Agriturismo.it, AMIVAC, Casamundo, CaseVacanza.it, e-domizil, EscapadaRural, Tripping.com, and Wimdu.We are seeking an experienced Senior Software Engineer to join our Consumer Product teams in Vilnius or Kaunas. In this role, you will be instrumental in shaping the future of HomeToGo. Our tech stack is modern and varied, including Symfony, MariaDB, ElasticSearch, Snowflake, Redis, Aerospike, RabbitMQ, Docker, Kubernetes, and more. With millions of properties listed on our platform, this position presents a thrilling opportunity to make a significant difference. Join us and help elevate our team to new heights!

Join Omnisend: A Thriving Work Environment!At Omnisend, we pride ourselves on fostering a professional and engaging work culture. Our environment is defined by collaboration and innovation, where smart individuals come together to deliver exceptional results. Forget about unnecessary meetings and micromanagement — here, we focus on what truly matters. Our data-driven approach allows us to test, iterate, and continuously improve our processes. We prioritize insights over assumptions and maintain a culture of trust, transparency, and constructive feedback. Our team is composed of seasoned professionals who adapt quickly and deliver impactful solutions for ecommerce brands. We are committed to solving real challenges while having genuine fun through activities like workations and team gatherings.The Reporting Team at Omnisend is dedicated to providing merchants with clear, actionable insights into their marketing performance. We develop analytics and reporting capabilities that help merchants understand the effectiveness of their campaigns, automations, and channels in driving engagement and revenue. Our solutions simplify complex marketing data into intuitive dashboards and reports, empowering merchants to analyze performance, uncover opportunities, and make informed, data-driven decisions to enhance their business growth.We are seeking a Senior Software Engineer with a strong emphasis on backend development, while also being comfortable working across the full stack. Ideal candidates are proactive, product-minded individuals who thrive on owning features from conception to deployment and are passionate about creating data-driven products. If you are excited about designing scalable backend systems, managing complex data, and occasionally enhancing front-end experiences that deliver actionable insights to merchants, we would love to welcome you to our team!

Join a Transformative CompanyPalantir Technologies is at the forefront of developing innovative software that empowers organizations to make data-driven decisions. Our advanced platforms enable partners to create life-saving medications, predict supply chain interruptions, locate missing persons, and much more.Position Overview As a Forward Deployed Software Engineer (FDE), you will collaborate closely with clients to swiftly identify their most pressing challenges and devise impactful solutions that leverage data. Our clients depend on Palantir’s platforms for critical operations, often starting with open-ended questions such as, "What causes our flight delays?" or "How can we improve our detection of money laundering activities?" In this role, you will utilize your analytical mindset, creativity, and technical expertise to help organizations harness their data for significant societal impact. You will gain invaluable insights and contribute to pivotal industries and institutions.As an FDE, you will operate similarly to a startup CTO: collaborating in compact teams with minimal oversight while owning the end-to-end execution of high-stakes projects. Your daily activities may include discussing system architecture with fellow engineers, managing large-scale data sets, building custom web applications, engaging with customer executives, or formulating strategies for your team.Whether your aspirations lie in entrepreneurship or engineering leadership, we believe Palantir is the ultimate environment to cultivate your skills alongside exceptional colleagues. You will learn to dissect complex problems, assess the implications of various solutions, acquire new technologies and programming languages, and even contribute to their development. You will operate independently, making decisions within a supportive community that challenges you to grow.

Join the forefront of online privacy and security.As a passionate problem-solver, you will be an integral part of the team that develops Threat Protection Pro, the NordLynx protocol, and the world’s fastest VPN. These innovative tools empower users to reclaim their online security, privacy, and control.Your contribution? Enabling millions of users to secure their digital presence effectively.Key ResponsibilitiesDesign, develop, and maintain data curation and ingestion services for our Threat Intelligence team.Collaborate on architectural solutions that are future-proof, including distributed computing pipelines and microservices.Engage actively in code reviews, knowledge sharing, and maintain high standards for technical documentation.Develop new services that enhance data feed quality.Ensure compliance with coding standards while delivering maintainable, secure, and efficient code.Think innovatively and contribute ideas that advance our cybersecurity initiatives.Provide technical leadership and mentorship to team members.Essential QualificationsProficient in Python with a deep understanding of its core concepts and data structures.Experience in designing microservice architectures and facilitating inter-service communication.Familiarity with data storage solutions like PostgreSQL.Exceptional ability to write clean, maintainable code.Experience with cloud infrastructure, particularly Docker and Kubernetes.Strong analytical skills and a knack for problem-solving.A keen learner who quickly identifies and resolves issues.Detail-oriented with a structured approach to tasks.

Role overview The iOS Core Product Software Engineer at Speechify works on building and enhancing iOS applications. The main goal is to make Speechify’s products more accessible and intuitive for users. This position is located in Vilnius, Lithuania. What you will do Develop and improve core features within Speechify’s iOS apps Work closely with other engineers and the product team to enhance user experience and accessibility Apply technical expertise to support and advance Speechify’s iOS technologies Location The role is based in Vilnius, Lithuania.

We are looking for a dynamic Java Software Engineer to join our passionate engineering team at scale3c. If you are driven by a desire to innovate and eager to contribute to your professional growth, we want to hear from you!