Backend Engineer - Transfers at SumUp | Vilnius, Lithuania

Join SumUp as a Backend Engineer in our Global Bank tribe, where we build essential infrastructure and services that empower merchants with reliable digital business accounts. Our mission is to simplify banking for small businesses.As part of the Transfers Gateway squad, you'll connect our internal systems with external financial networks across the EU and t…

Join SumUp's Global Bank tribe, where we are dedicated to creating the essential infrastructure and core services that will empower our merchants with a digital banking experience tailored for their success. Our mission is to be the preferred banking partner for small merchants worldwide by delivering a banking experience that is effortless, straightforward, and cost-effective. As a member of the Global Bank tribe, you will play a significant role in developing SumUp's digital bank. Collaborate with a diverse, autonomous team from 32 different nationalities across cities like Cologne, Berlin, São Paulo, Sofia, London, and Vilnius, all committed to taking ownership, working with purpose, and supporting the growth of small businesses. In your capacity as a Senior Backend Engineer, you will be instrumental in transitioning from localized setups with regional banks to a unified Global Bank. This will involve tackling the challenges associated with migrating to a fully distributed, event-driven architecture. Our technology stack comprises Go, AWS, Kafka, PostgreSQL, and Kubernetes, complemented by a robust observability toolchain featuring Prometheus, Grafana, and Honeycomb. We also leverage AI-assisted development tools such as Cursor and GitHub Copilot. At SumUp, our engineering culture emphasizes ownership. We adhere to a “build it, run it, improve it” philosophy, ensuring strong observability and a commitment to continuous learning. Engineers enjoy a clear scope of work and autonomy, with decisions made collaboratively and documented thoroughly. The Vilnius team is integral to the Global Bank domain, overseeing production systems, shaping technical direction, and collaborating closely with colleagues across SumUp’s global offices on critical merchant banking capabilities. Join our Vilnius Team today! (Vilnius office)

Join the dynamic team at SumUp, where the Global Bank tribe is dedicated to building robust infrastructure and essential services that empower merchants with digital business accounts, simplifying banking for millions of small enterprises. The Transfers Gateway squad plays a crucial role by connecting SumUp’s internal systems to external financial networks across the EU and the UK. We are responsible for the services that facilitate daily money movement through various payment schemes. Our team oversees the complete integration process and manages production services that handle real transactions at scale. You will be instrumental in modernizing legacy systems while ensuring reliability, accuracy, and adaptability, making architectural choices that directly impact uptime and enhance the merchant experience across diverse markets. Our tech stack comprises Go, AWS, Kafka, PostgreSQL, and Kubernetes, reinforced by a comprehensive observability toolchain including Prometheus, Grafana, and Honeycomb. We leverage AI-assisted development tools such as Cursor and GitHub Copilot to enhance our workflows. At SumUp, we foster an engineering culture rooted in ownership. We operate on a “build it, run it, improve it” philosophy, emphasizing strong observability and continuous learning. Engineers enjoy clear responsibilities and autonomy, with decisions documented and made collaboratively. The Vilnius team is integral to the Global Bank domain, managing production systems, influencing technical direction, and collaborating with colleagues across SumUp’s global offices to enhance critical merchant banking capabilities. Be a part of our Vilnius Team today! (Vilnius office)

At Kurk Lietuvai, we embody dynamism and a forward-thinking approach. For a year, you will engage in transformative projects within the Lithuanian public sector, tackling issues that resonate with you—from economic development and innovation to education, environmental sustainability, and security.Kurk Lietuvai empowers you to convert challenges into actionable solutions, driving meaningful change both locally and globally.

Invest Lithuania seeks a Social Media and Content Manager to join the team in Vilnius. This role centers on strengthening the organization’s online presence and ensuring its voice reaches the right audiences. Key responsibilities Design and execute social media strategies that align with Invest Lithuania’s objectives Create original content for a range of digital platforms Monitor and analyze social media metrics to assess engagement and reach Collaborate with colleagues across departments to keep messaging consistent with brand values Location This position is based in Vilnius, Lithuania.

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).

Become a vital part of the Incogni engineering team as we embark on a mission to develop a cutting-edge backend system that efficiently powers our innovative products, Incogni and Ironwall, at scale. We are in search of a seasoned backend engineer who excels in systems thinking, designs with scalability in mind, and thrives in a multi-technology environment.Our goal is to create a robust, secure, and dependable service platform that not only accommodates rapid business growth but also adapts to the evolving needs of our products. You will be engaged in designing and developing core application systems and service architectures that form the backbone of our platform.

Join our dynamic team at nordsec as a Senior Backend Engineer specializing in Golang. In this role, you will be pivotal in designing and implementing robust backend systems that power our innovative security solutions. You will collaborate with cross-functional teams to create scalable architectures and optimize performance.

Become an integral part of the Incogni engineering team and collaborate in crafting a cutting-edge backend platform that powers both Incogni and Ironwall at scale.We are seeking a seasoned backend engineer who excels in system thinking, is adept at designing for scalability, and takes pleasure in developing robust, reliable services.Our vision is to establish a secure, scalable, and high-performance service platform that accelerates business growth and adapts to changing product demands. You will engage with core systems and service architectures that are central to our platform, utilizing Go as a primary technology.

Join our dynamic R&D team at devexperts as a Backend Engineer. We are seeking a skilled professional who is passionate about building scalable and efficient backend applications. You will collaborate with cross-functional teams to design and implement innovative solutions that drive our products forward.

Join our dynamic team at TLT Electronics as an Electronics Engineer. In this role, you will work on a diverse range of ODM projects, from product electronics design to developing custom testing stands within our R&D department, located in both Vilnius and Molėtai. At TLT, we are dedicated to fostering innovation and continuous growth in the manufacturing sector. Our impressive 55-hectare high-tech manufacturing park is equipped with state-of-the-art automation and robotics, allowing us to transform even the most complex electronic and plastic ideas into impactful products that make a difference globally. We promote a culture of collaboration, ownership, and ambition, where teamwork across engineering, project management, and manufacturing leads to meaningful solutions. At TLT, you’ll have the chance to enhance your project management skills, deepen your technical knowledge, and advance your career while tackling challenging ODM projects from conception through to production. Are you ready to make a real impact? Join us and be part of something extraordinary. Your Responsibilities:Evaluate and analyze customer projects to provide accurate workload and timeline estimates.Utilize customer Altium source files effectively.Design and test electronic prototypes in accordance with technical specifications.Create electronic test boards for customer product evaluations.Select appropriate testing equipment for electronics manufacturing (FCT, ICT).Facilitate product adaptation for mass production (DFM, DFT).Utilize laboratory measuring equipment for testing.Construct functional prototypes using development kits (dev kits).Prepare essential manufacturing documentation for electronics projects.Collaborate with electronics engineers, mechanical engineers, and embedded systems developers.

Join our innovative team at guru-pay as a Data Engineer and be at the forefront of transforming data into actionable insights. You will play a pivotal role in designing, building, and maintaining robust data pipelines that drive our business decisions and strategies.

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!

Role Overview Unity Technologies seeks a Quality Engineer - Graphics to join the Platform Graphics team in Vilnius, Lithuania. This role centers on improving graphics quality and performance across a range of mobile devices and specialized hardware. What You Will Do Work closely with senior engineers, QA, and developers to identify, investigate, and resolve bugs in Unity's graphics features. Conduct thorough testing to ensure graphics features perform well on multiple platforms. Help deliver strong graphics experiences for end users by maintaining high standards for quality and performance. Growth and Collaboration This position offers the chance to learn directly from experienced engineers and deepen your skills in real-time 3D graphics. The Platform Graphics team values collaboration and knowledge sharing as part of their daily work.

Join TechBiz Global, a leading recruitment service provider catering to top-tier clients. We are on the lookout for a skilled AI Engineer to join a dynamic team at one of our esteemed clients. If you're eager to advance your career in a cutting-edge environment, this opportunity is tailored for you.Position OverviewWe are seeking a talented AI Engineer to enhance and maintain our existing AI-driven solutions using Kafka, AWS, and Large Language Models (LLMs). Your contributions will be vital in ensuring our systems' reliability, scalability, and performance while also aiding in the development of new features that enhance our platform.Key ResponsibilitiesOptimize and maintain existing AI solutions utilizing Kafka, AWS, and LLMs.Monitor and resolve issues within data pipelines to guarantee smooth data flow and system efficiency.Collaborate with cross-functional teams to deploy AI models into live environments.Enhance features based on LLMs for natural language processing tasks such as text analysis and automation of customer interactions.Design and maintain scalable, secure, and cost-effective solutions on AWS.Ensure high availability and fault tolerance for Kafka-based streaming data systems.Develop and maintain Python applications and scripts to facilitate AI and data processing workflows.Participate in the design and development of innovative AI-driven features to enhance user experience.Stay abreast of advancements in AI, LLMs, and cloud technologies to suggest pioneering solutions.

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.

Join Invest Lithuania and play a pivotal role in shaping the future of the country. Our dedicated team is on a mission to position Lithuania as a premier destination for global businesses. We are seeking a dynamic and driven Project Manager who will oversee the coordination of large-scale manufacturing projects, both domestic and international. You will ensure seamless execution and foster strong relationships with governmental bodies at both national and local levels.Key Responsibilities:Lead the coordination of strategic national and international manufacturing projects, supporting them at every implementation phase.Provide expert consultation on various challenges, including legal matters, infrastructure, permitting, state aid, labor issues, migration, and more.Proactively assist in overcoming obstacles encountered during project execution.Contribute innovative ideas aimed at enhancing the investment climate in Lithuania to support the successful execution of strategic initiatives.Establish and nurture a broad network of stakeholders, including central and local government agencies and other relevant organizations, representing the interests and needs of strategic projects.

Didn’t find the role you’re looking for? Join our Talent Pool!We understand that discovering the perfect job opportunity can take time, and we want to ensure we connect with exceptional talent like you!If you didn’t find a position that aligns with your skills and experience on our careers page, we still invite you to reach out. By submitting your CV along with some details about yourself, you can become part of our Talent Pool—a dedicated resource for individuals interested in future opportunities with us.As a member of our Talent Pool, you will be among the first to know when new roles that suit your profile become available. We’ll retain your information for consideration in positions that correspond with your background, skills, and interests.So, don't hesitate—introduce yourself! We are eager to connect and maintain communication as our team expands.

Role Overview Wix is looking for a Senior Backend Engineer focused on Functions to help build and support scalable backend systems. This position is based in Vilnius. What You Will Do Design, develop, and maintain backend solutions that expand the platform’s capabilities Collaborate with cross-functional teams to deliver reliable software Contribute to high-quality code that meets user needs

About Speechify Speechify helps people access information by turning web articles, cloud documents, and eBooks into audio. Users can listen wherever they are, at their desks or on the move. Like streaming changed music and podcasts, Speechify is reshaping how people engage with audio information. The company has seen strong growth and leads its market. Role Overview: Senior Software Engineer, Core Experiences Based in Vilnius, Lithuania, this senior engineering role joins the Core Experiences Team. The team focuses on building and maintaining the foundational services and SDKs that power Speechify’s product across multiple platforms. This position suits someone who enjoys working where product and infrastructure meet, thinks strategically, and likes building clear, reliable APIs and systems that make a real difference for users. What You Will Do Collaborate with Product Teams to define project goals, improve feedback cycles, and address integration and user experience needs across teams. Deliver solutions using Speechify’s cross-platform SDK. Improve existing features by designing better abstractions and algorithms to boost performance, including faster loading and smarter parsing. Deploy cloud functions, lightweight backend services, and jobs using Kotlin.