Mid to Senior Backend Engineer - Go | Threat Protection

Join the forefront of online privacy and security!At Nord Security, we are the innovators behind the world’s most advanced VPN technology, including Threat Protection Pro and the NordLynx protocol. We are looking for inquisitive problem-solvers to join our dynamic team in developing tools that empower individuals to reclaim their online privacy, security, an…

Join the innovative team at Tide, a leading force in banking technology, as we embark on strategic projects in collaboration with Architus. We are seeking a skilled Senior Backend Engineer proficient in Python to enhance our applications and drive the development of our finance platform designed to support small businesses in saving time and money.About TideTide, established in 2017, has rapidly gained the trust of over 1 million small businesses worldwide and is currently available for SMEs in the UK, India, and Germany. With a vibrant headquarters in central London and regional offices in Sofia, Hyderabad, Delhi, Berlin, and Belgrade, Tide employs over 1,800 dedicated professionals. Our Lithuanian branch, home to 30 engineers, is poised for significant expansion, making it an exciting time to join us as we innovate and empower small businesses.The OpportunityAs a Senior Backend Engineer at Tide, you will play a crucial role in shaping our products. Reporting directly to the People Manager and Staff Engineer (Functional), you will collaborate with a team of highly skilled engineers. Your responsibilities will include ensuring system consistency and enhancing user experience, along with the design, building, and maintenance of functional and stable web applications that cater to both company and customer needs.We operate in an agile environment with small, cross-functional squads that manage the full lifecycle of microservices within Tide’s service catalog. Your innovative ideas will be valued, and you will be a vital contributor to our ongoing product improvement initiatives. Technical discussions will also take place within our various Communities of Practice.

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!As a Senior Backend Engineer on the Nord Account Team, you'll contribute to the development of industry-leading tools, such as Threat Protection Pro and the NordLynx protocol, which empower users to reclaim their online security and data privacy.Your mission? Enable millions of users to take control of their online security and privacy.Key ResponsibilitiesCraft intuitive APIs that are not only functional but also enjoyable for our internal teams to utilize.Prioritize the creation of high-quality, scalable, and secure code.Work collaboratively with a dedicated team of developers to build and maintain our services using Golang.Take ownership of architecture, design, development, and deployment initiatives with respect and diligence.

Join NordPass in Revolutionizing Password Security!At NordPass, we are dedicated to making password security seamless and user-friendly. With over 7 million users and 10,000 global businesses relying on our password manager, we strive to provide a safe and simple solution for managing credentials, payment information, and sensitive data.Your Role: As a Backend Engineer on our Systems Team, you will play a crucial role in enhancing and developing features that empower millions of users to secure their digital identities. Your contributions will help us create innovative and reliable methods for logging in.

Join Architus as we partner with Tide, a pioneering name in banking technology, to enhance innovative projects. We are searching for a seasoned Senior Java Engineer to become a vital part of Tide’s dynamic team.About TideTide has recently launched its operations in Lithuania, expanding its workforce to over 34 skilled engineers through a successful collaboration with Architus. The company is dedicated to developing a cutting-edge financial platform aimed at empowering small businesses to optimize their time and expenses. Tide not only offers business accounts and banking services but also a wide array of integrated administrative tools, including invoicing and accounting solutions.Since its inception in 2017, Tide has gained the trust of over 1 million small businesses globally, serving SMEs in the UK, India, Germany, and France. With its headquarters in central London and additional offices in Sofia, Hyderabad, Delhi, Berlin, and Belgrade, Tide employs more than 2000 professionals.As Tide expands rapidly and ventures into new markets, it continuously seeks enthusiastic and motivated individuals to join its mission of empowering small businesses.The OpportunityAt Tide, engineering teams are engaged in designing and managing a diverse product catalog across multiple domains. With an exciting roadmap ahead, engineers are empowered to make significant technical decisions that influence the Global One Platform. Working in small, autonomous teams, engineers take charge of microservices, self-organizing to tackle technical challenges and establish guidelines within Communities of Practice.As a pivotal member of an agile engineering team, you will work closely with Backend, iOS, Android, Web, QA, DevOps, Data, and Product teams to deliver meticulously engineered solutions. This represents a unique opportunity to influence engineering practices and make a tangible impact within a rapidly growing international organization.Technical StackProgramming Languages: Java 17Frameworks: Spring Boot, JOOQAPI: RESTful APIs, API design (treated as products, often public in Open Banking)Event-Driven Architecture: SNS+SQS, KafkaDatabases: PostgreSQL (via Aurora)Cloud Infrastructure: AWS (heavy AWS usage)CI/CD: GitHub, GitHub Actions, JUnit, Pact testingDeployment: ArgoCD, Docker, Terraform, EKS/KubernetesMonitoring & Debugging: DataDogCollaboration Tools: Close collaboration with Product Owners on user needs, business opportunities, and regulatory requirements.

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 millions regain control over their online security, privacy, and data.Threat Protection In an era where viruses, Trojans, worms, spyware, and other malware pose significant threats, our Threat Protection team is committed to creating a safer online experience. We are developing robust software solutions that protect our customers from these threats. You will work on scalable code designed for high-volume, secure, distributed systems, crafted from the ground up. If this sounds like the challenge you've been searching for, we invite you to read on!

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 Architus, a company dedicated to bridging top UK and US businesses with exceptional EU engineering talent. We specialize in cultivating high-performing technology teams and establishing a robust international presence. With offices in London, Vilnius, and Kaunas, we boast a stellar track record and an impressive clientele, including industry leaders like Invesco, Tide, Capital Group, Schroders, BNP Paribas, and HSBC.The OpportunityWe are excited to announce a partnership with a prominent UK energy firm, focused on cementing a substantial presence in Lithuania. This innovative company is dedicated to addressing global energy challenges while creating sustainable systems that benefit both the planet and its inhabitants.This is an incredible opportunity to become a part of an expanding team, offering numerous avenues for professional growth. You will collaborate with a passionate group committed to making a significant impact through cutting-edge technology, fueled by an entrepreneurial spirit.About the TeamAs part of the largest strategic transformation in the company's history, you will join a team that develops greenfield technology and innovative solutions for over 4 million customers. You will work within an autonomous product team, closely collaborating with various teams under a common Fintech domain that encompasses Energy Trading, Payments, and Exports. Your contributions will span across local and UK-based colleagues.Your ResponsibilitiesAs a Senior Backend Engineer, you will play a pivotal role in creating API-first services integral to our new target architecture. Your expertise will help shape the design, build, and scaling of customer products and services in collaboration with other Product and Engineering teams.You'll be working with cutting-edge technologies such as TypeScript, PostgreSQL, and MongoDB, utilizing CI/CD pipelines with Terraform and Kubernetes on GCP. Emphasizing agile methodologies, you will work alongside your team to achieve shared objectives.QualificationsExtensive backend engineering experience is essential.Proficiency in TypeScript and Node.js.Demonstrated success in a fast-paced growth environment.Understanding of multi-server architectures with experience in PostgreSQL and MongoDB, as well as familiarity with DevOps practices, including CI/CD pipelines and Terraform/Kubernetes.Exposure to Google Cloud Platform is advantageous; experience with AWS is also acceptable.Strong passion for product development and user experience, coupled with robust commercial insight.Desire to make a meaningful impact and take ownership early in the process.Ability to design resilient and scalable solutions.Meticulous attention to detail and a focus on security aspects.Familiarity with Test Driven Development (TDD) is a plus.Excellent written and verbal communication skills in English.What We OfferCompetitive Salary: Starting ...

KAYAK, a proud member of Booking Holdings (NASDAQ: BKNG), stands at the forefront of the travel industry as a premier search engine. With billions of queries processed on our platforms, we empower travelers to discover their ideal flights, accommodations, rental cars, and vacation packages. Furthermore, we are revolutionizing business travel with our innovative corporate solution, KAYAK for Business.As part of the KAYAK team, you will join a dynamic travel company that encompasses a diverse portfolio of global metasearch brands, including momondo, Cheapflights, and HotelsCombined. Our journey from a startup to an industry leader is driven by innovation, and every team member has the opportunity to leave their mark. Our mission is to create the finest travel search engine, simplifying the process for everyone to explore the world.We are seeking talented Java backend developers to contribute to the enhancement and maintenance of KAYAK’s cutting-edge search and booking technology. By collaborating with over 200 travel partners, we connect users to more than 500,000 hotels and 550 airlines. As a vital member of our high-performance team, you will play an essential role in ensuring seamless operations that help millions of users find the best accommodations and travel options every day!This position requires in-office work at our Kaunas location at least 3 days a week.

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).