Backend Engineer/API, Payments and Risk

Why Verifone For more than 40 years Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone has one of the leading electronic payment solutions brands and is one of the largest providers of electronic payment systems worldwide. Verifone has a diverse, dynamic and fast paced work environment in which employees are focused on results and have opportunities to excel. We take pride in the fact that we work with leading retailers, merchants, banks, and third-party partners to invent and deliver innovative payments solution around the world. We strive for excellence in our products and services and are obsessed with customer happiness. Across the globe, Verifone employees are leading the payments industry through experience, innovation, and an ambitious spirit. Whether it's developing the next platform of secure payment systems or searching for new ways to bring electronic payments to new markets, the team at Verifone is dedicated to the success of our customers, partners and investors. It is this passion for innovation that drives each one of our employees for personal and professional success. Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located. Currently, we do allow a hybrid work schedule but we regularly revisit our attendance policy. About The Role We are seeking a Director of Engineering to lead and grow the Global Payment Platform engineering organization, responsible for building and operating backend services that support payments, checkout, and transactional workflows. You will partner closely with Product, Frontend, Platform, and Infrastructure teams to set technical direction, uphold engineering excellence, and deliver secure, scalable systems in high‑throughput environments. This role sits at the core of Verifone's payment and checkout platform, where engineering leadership directly impacts secure, high‑volume transactions used globally. As a hands‑on director, you will set technical direction while staying close to the code. You will also be accountable for the health, delivery, and culture of multiple teams building production‑critical systems that must perform reliably under real‑world load, evolving payment methods, and strict security requirements. Required Skills and Experience  Leadership & People Management * Proven experience leading multiple software engineering teams, including managing and mentoring engineering managers and tech leads * Strong track record of building, scaling, and retaining high-performing engineering organizations * Ability to set organization-level goals and operating cadence, run effective performance and calibration cycles, and foster a culture of accountability and growth * Experience facilitating cross-functional collaboration across Product, Design, Platform, and Infrastructure stakeholders * Strong communication skills, with the ability to translate technical complexity for non-technical audiences Technical Depth * Strong, current hands-on background in backend engineering — able to read and review code, drive architecture and design reviews, and contribute alongside engineers when needed * Deep, hands-on engineer who works fluently with agentic AI tools, using them to accelerate design, coding, and reviews while maintaining high standards of quality and security * Strong foundation in Java and Spring Boot, along with Node.js and TypeScript — both are essential for our backend and e-commerce systems * Solid grounding in Clean Architecture, Domain-Driven Design (DDD), and modular system design * Strong understanding of RESTful API design, database modeling (MongoDB), and caching strategies (Redis) * Comfort discussing cloud infrastructure (AWS), CI/CD pipelines, Docker, and Git workflows Delivery & Process * Experience owning end-to-end delivery across multiple concurrent workstreams * Ability to balance speed of delivery with long-term code quality, reliability, and maintainability * Familiarity with agile methodologies and the ability to adapt processes to team needs * Experience managing roadmaps and working with Product to scope, prioritize, and sequence engineering work Engineering Culture & Quality * Passion for building high-quality, testable, and well-documented systems * Champion of automated testing, code review practices, and engineering best practices * Data-driven approach to reliability, with comfort in monitoring, incident response, and blameless post-mortems Desirable Skills and Experience Payments & Security Domain * Experience leading teams in fintech, payments, or e-commerce environments * Familiarity with payment provider integrations (e.g., Stripe, PayPal, Klarna) and workflows such as authorization, capture, refunds, and 3D Secure * Awareness of PCI-DSS requirements and security best practices in high-compliance environments * Understanding of fraud considerations and risk in transactional systems Production Engineering * Experience managing high-availability, fault-tolerant systems in production * Exposure to performance optimization, APM tools (e.g., AppDynamics), and SLA management * Familiarity with messaging systems such as Kafka, RabbitMQ, or Redis Pub/Sub Platform & Architecture Exposure * Experience working alongside frontend frameworks such as Angular or React * Familiarity with server-side rendering, iframe-based widget embedding, and internationalization (i18n) systems * Exposure to event-driven or microservices architectures at scale Our Commitment Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

At SumUp, the Global Bank tribe builds the core infrastructure and services that give merchants a digital business account, helping small businesses manage their banking needs easily and reliably. The Transfers Gateway squad connects SumUp’s internal systems to external financial networks across the EU and the UK. We build and run the services that move money through payment schemes every day. The team owns end‑to‑end scheme integrations and operates production services that process real money at scale. You’ll help modernise existing systems while balancing reliability, correctness, and change, making architectural decisions that directly affect uptime and merchant experience across multiple markets. Our tech stack includes Go, AWS, Kafka, PostgreSQL, and Kubernetes, supported by a strong observability toolchain with Prometheus, Grafana, and Honeycomb. We also actively use AI‑assisted development tools such as Cursor, GitHub Copilot, and others. SumUp’s engineering culture is built around ownership. We follow a “build it, run it, improve it” model, with strong observability and a focus on learning. Engineers have clear scope and autonomy, with decisions documented, reviewed, and made collaboratively. The Vilnius team is a core part of the Global Bank domain. We own production systems, shape technical direction, and work closely with colleagues across SumUp’s global offices on critical merchant banking capabilities. Join our Vilnius Team today (Vilnius office). What You’ll Do * Build and maintain production money movement backend services, contributing to their delivery, observability, and ongoing maintenance. * Own and deliver well‑defined tasks and features, and contribute to larger projects within the team’s domain. * Contribute to technical design and implementation, following established architectural patterns and best practices. * Improve service reliability and quality by writing tests, enhancing monitoring, and following established delivery pipelines. * Support the operation of the systems you work on by participating in on‑call rotations, incident response, and learning from post‑incident reviews. * Apply a backend and systems perspective during refinement, raising questions about risks, dependencies, and edge cases. * Collaborate closely with Product, QA, and other engineers to deliver end‑to‑end transfer and banking capabilities. You’ll be great for this role if you * Have experience building backend services in a modern environment and supporting them in production. * Can take a clearly defined problem and implement a solution independently, seeking guidance when needed. * Are comfortable working with cloud‑based systems, containerized workloads, and automated delivery pipelines. * Have experience writing and maintaining automated tests and care about code quality. * Understand the fundamentals of system architecture, data modelling, and API design, and are eager to deepen this knowledge. * Are curious about how your work fits into the broader system and product experience. * Communicate clearly and collaborate effectively with engineers, product managers, and other stakeholders. Any of the following would be considered a plus * Exposure to banking, payments, or financial systems, especially in regulated environments. * Experience supporting systems with production traffic, including participating in incident response. * Use of AI‑assisted tools to improve development speed, learning, or code quality. Why you should join SumUp * 🌎 We’re a truly global team of 3200+ skilled professionals from 92+ countries, spread across 4 continents. Join the team from our Vilnius office. * 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced * 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success * 🏖️ Time off: 25 days of paid leave, plus special holidays * 🏥 Peace of mind: health insurance through Gjensidige and life & accidental coverage from Ergo * 💪 Stay active: gym membership allowance to help you keep fit on your terms * 📚Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University cohort and a yearly learning budget (2,000 EUR) * 💡We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks. * 🌴 Break4me: 1-month sabbatical after 3 years of service * 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team   Compensation: From midlevel level 3,493 to 4,657 Euro p/m + 2000 EUR annual learning budget + Virtual Stock Options. Ranges may vary based on skills and experience.    About SumUp At SumUp, we’re on a mission to empower small businesses around the world with simple, affordable tools to help them start, run, and grow. More than 4 million merchants across 37 markets trust us as their financial partner — and we’re just getting started. We’re a global team of 3,000+ people from over 90 nationalities, united by curiosity, collaboration, and care. Our core values and culture shape everything we do, fostering inclusion, learning, and belonging. SumUp is proud to be an Equal Employment Opportunity employer, committed to building a safe, respectful, and diverse workplace where everyone can thrive. 👉 Explore more about our culture on our careers site, or follow us on LinkedIn and Instagram. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.