Mid to Senior Backend Engineer | Threat Protection | Go

Join a dynamic team of over 500 professionals at Oxylabs, a leader in developing innovative proxy and web data scraping solutions for renowned global businesses, including Fortune 500 companies.Your Role:As a PHP/Go Developer, you will tackle complex challenges and maintain our robust infrastructure managing over 60PB of monthly data traffic. You’ll engage with a system characterized by:- 6PB+ Ceph storage- 60PB+ monthly data traffic- 300k+ service requests processed per second- 500k+ Kafka messages streamed per secondBe part of a product that impacts over 15 million users globally, allowing you to see the results of your work from day one. Enjoy a rapid development cycle where your features go live quickly, ensuring continuous delivery and tangible outcomes.Work with a state-of-the-art tech stack including the latest PHP, frameworks, and databases in a containerized environment powered by Kubernetes, which has been in production for over seven years. Daily, you will face big data challenges, gain hands-on experience with Go, and contribute to shaping our engineering standards and best practices.

Location: Vilnius Role: Mid-Senior PHP/Go Developer About Oxylabs Oxylabs brings together more than 500 professionals focused on building proxy and web data scraping solutions used by many of the world’s top companies, including several Fortune 500 organizations. What You'll Do Work on complex technical challenges and support an infrastructure that moves over 60PB of data traffic each month. The scale is significant: 6PB+ of Ceph storage 60PB+ monthly data traffic 300,000+ service requests per second 500,000+ Kafka messages streamed per second Contribute to a product with more than 15 million users worldwide. New features and improvements go live quickly, so your work has visible impact from the start. The team maintains a rapid development cycle with continuous delivery. Tech Stack and Environment Work with the latest PHP frameworks and databases in a fully containerized setup. Kubernetes has been in production here for over seven years. Expect to tackle big data projects daily, use Go in real-world scenarios, and help shape engineering standards and best practices.

Oxylabs creates proxy and web data scraping solutions for a diverse client base, including Fortune 500 companies. The company’s team of over 500 professionals tackles complex data challenges and supports large-scale operations. Role overview This Mid-Level PHP Developer position is based in Vilnius. The role centers on maintaining and enhancing the infrastructure that powers Oxylabs’ global data services. The systems managed in this role process significant volumes of data for clients worldwide, requiring careful attention to reliability and performance. Key systems and technologies Ceph storage handling over 6 petabytes of data Monthly data traffic exceeding 60 petabytes Service infrastructure managing more than 300,000 requests per second Kafka streaming with 500,000 messages per second This role focuses on supporting and improving the core systems that keep data flowing smoothly at scale.

Join our dynamic team of over 500 skilled professionals at Oxylabs, where we create innovative proxy and web data scraping solutions for some of the most recognized brands worldwide, including Fortune 500 companies.What You Can Expect:As a Mid-Level PHP Developer, you will tackle intricate challenges and manage our extensive infrastructure, which supports over 60PB of monthly data traffic. Your role will involve working with significant metrics, such as: - 6PB+ Ceph storage - 60PB+ monthly data traffic through our systems - 300k+ service requests processed per second - 500k+ Kafka messages streamed per second

Join a leader in online security.Are you a problem solver with a passion for technology? Become part of the innovative team at Nord Security, the creators of the world’s fastest VPN, Threat Protection Pro, and the NordLynx protocol. We empower individuals with tools that prioritize privacy, security, and control over their online presence.Your Role: Contribute to a mission that helps millions regain control over their online security, privacy, and data.As a member of the Nord Checkout team, you will play a crucial role in developing and maintaining essential services that facilitate the final step of the user purchase journey. Your responsibilities will include scaling services and implementing new features to ensure a secure, efficient, and enjoyable user experience. Additionally, you will support other teams by providing access to vital user purchase data.

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 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.

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 our dynamic team at AdTech as a Senior PHP Developer specializing in cybersecurity tools. In this role, you will leverage your extensive experience in PHP development to design, implement, and maintain innovative security solutions that protect our clients' digital assets. You will collaborate with cross-functional teams to enhance our product offerings and ensure we remain at the forefront of cybersecurity technology.

Join NordProtect as a Backend Engineer and be part of a dynamic team dedicated to building robust, scalable backend systems using Go programming. As a key player in our development team, you will contribute to enhancing our security solutions and optimizing performance. Collaborate with cross-functional teams to deliver high-quality features that meet our customers' needs.

Join our team at NordPass, where we strive to make password security seamless and intuitive.With over 7 million users and 10,000+ companies relying on our solution to safeguard their credentials, payment methods, and sensitive information, we are dedicated to enhancing digital security.What will your role entail? You will play a vital role in securing the digital lives of millions by developing innovative and secure login methods.

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 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.

At OBDeleven, we are dedicated to simplifying automotive technology for enthusiasts around the world. With over a decade of experience, we specialize in creating powerful yet user-friendly diagnostic and customization tools. Join us in our mission to innovate and enhance the driving experience.Your Role:Develop and enhance our website and e-commerce platform using the latest technologies such as Vue.js, React, Next.js, and Symfony/Sylius.Collaborate with marketing, design, and product teams to transform concepts and requirements into effective features.Take ownership of the development process from initial planning to deployment and subsequent improvements.Focus on optimizing the performance, reliability, and overall developer experience across our web stack.Write high-quality, maintainable, and well-tested code adhering to industry best practices.Utilize AI-driven tools to enhance productivity and maintain code quality.Contribute to setting and improving engineering standards while helping to elevate the technical capabilities of the team.What We Seek:Proven experience in PHP and JavaScript/TypeScript (Vue.js, React, Next.js).Proficient in working with production systems, including SQL, Redis, message queues, and caching.Familiarity with Azure or similar cloud platforms, along with knowledge of Docker and Kubernetes.Strong understanding of testing methodologies (unit, integration, and performance testing).Able to design straightforward, scalable solutions and enhance existing systems without unnecessary complexity.Possess a keen sense of business impact and ownership; proactive communication and teamwork are essential.Stay updated with modern tools and approaches, with a willingness to learn new technologies.Fluency in Lithuanian and professional proficiency in English.Preferred Qualifications:Experience with Sylius/Symfony or other e-commerce frameworks.Background in high-traffic web platforms or marketing-focused environments.Knowledge of observability tools (logs, metrics, tracing, alerting).Experience in cloud migrations, refactoring legacy systems, or enhancing CI/CD pipelines.What We Offer:Competitive Compensation: We provide a salary that reflects your expertise and growth, along with an annual performance-based bonus.Flexible Work Environment: Enjoy a hybrid work setup with three days in the office and two days remote.Health and Well-being: Select from comprehensive health plans, take paid leave for personal care, and enjoy flexible working hours, including a day off for your birthday.Additional Time Off: Benefit from a 4-day workweek for one month each year, depending on company performance.

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

Join our innovative team at nordsec as a Full-Stack Developer at the Mid-Senior level, specializing in cutting-edge AI tools. In this pivotal role, you will be responsible for designing, developing, and maintaining robust web applications while collaborating with cross-functional teams to deliver exceptional user experiences. Your expertise in both front-end and back-end technologies will help shape our AI initiatives and drive the future of digital solutions.

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 the Vanguard of Online Security!Are you a passionate problem-solver eager to innovate? Be part of the team behind Threat Protection Pro, the NordLynx protocol, and the world's fastest VPN. We empower users with enhanced privacy, security, and control over their online presence.Your Role: Make a significant impact in helping millions reclaim their online security, privacy, and data.Join our Notification Center Team - Pioneering the Future of In-App Communications!As a Senior Backend Developer on our Notification Center Team, you will be integral in designing and maintaining the microservices that facilitate in-app notification delivery. Our team is essential to numerous features across various teams that depend on effective notification systems. Collaborating closely with other Nord teams, you will help chart our scalable future.Are you prepared to tackle challenges related to scalability, code quality, and maintenance? Your expertise will ensure that our services remain stable and functional, acting as the hidden backbone of many NordVPN, NordPass, and NordLayer features. Join our talented team of engineers dedicated to technical excellence!Key Responsibilities:Develop and enhance microservices to meet the needs of millions of users across NordVPN and related products, ensuring optimal scalability, stability, and security.Collaborate with cross-functional teams to promote seamless integration and functionality of microservices throughout NordVPN's product suite, enhancing the user experience.Mentor team members and foster technical best practices within the organization.Contribute towards shaping the team's vision and long-term objectives.Engage in research and development activities to explore and implement cutting-edge technologies as needed.

Join our dynamic internal IT team at scale3c, comprised of approximately 10 talented software developers, a creative web designer, and our visionary CTO. In this role, you will thrive in a product-driven environment where the focus is on innovation, allowing you to build exciting new products and features from the ground up with minimal legacy maintenance.