
Sumup · Barcelona
About SumUp We believe in the everyday hero. Small business owners are at the heart of all we do, so we're creating tools that help them run their businesses....
About SumUp
We believe in the everyday hero.
Small business owners are at the heart of all we do, so we're creating tools that help them run their businesses. With a founder’s
mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to
ensure that the small business owners we partner with can be successful doing what they love.
Team Description
The Lending team offers a fair, easy, timely, and financially relevant lending experience to small merchants. Empower small
business owners to manage their financing independently of the stage of their business, either funding their growth, managing
their cash flow, or covering their operational costs. Enable capital to be available to our merchants and consumers, always and
everywhere.
We are looking for our new Senior Engineer for our team responsible for developing and maintaining the backend two important
pieces of our products: Risk Assessment and Dunning & Collection. This includes designing, implementing, and testing new features,
as well as improving the performance and scalability of existing ones.
What you’ll do
of our merchants.
You’ll be great for this role if
It will be an awesome add
Why you should join SumUp
continents).
SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring
or employment decisions on the basis of 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. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.
SumUp will not accept unsolicited resumes from any source other than directly from a candidate
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.
🚀 We’re on a mission to make money work for everyone. We’re waving goodbye to the complicated and confusing ways of traditional banking. After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as personal and business bank accounts, we offer joint accounts, accounts for 16-17 year olds, a free kids account and credit cards in the UK, with more exciting things to come beyond. Our UK customers can also save, invest and combine their pensions with us. With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers! We’re not about selling products - we want to solve problems and change lives through Monzo ❤️ ---------------------------------------------------------------------------------------------------------------------------------- 📍Barcelona, Spain | 💰 Base salary for this role is depending on experience + Incentive Awards tied to your performance + benefits Hybrid model: 3 days a week in the office About our Engineering Teams: We have over 650 engineers across Monzo who design and build our in-house banking platform. We have big ambitions for the future, and technology plays a big role in creating a bank our customers want, so engineers at Monzo collaborate across disciplines to solve interesting challenges throughout the company. These range from the products our customers use everyday to underlying infrastructure, security, payments and finance, customer operations, financial crime, and data, to name just a few areas. As a bank, there is scope for impact across a huge number of opportunities. We contribute to open source software as much as possible. Our blog is a good place to learn even more about what we do! Your day-to-day This role is all about collaborating with your team to make a difference to your customers. As a backend engineer you’ll work in a squad alongside other disciplines like product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers and more! Together you’ll build and support a particular part of Monzo. Our squads belong to our wider collectives (a word we use to describe self-governing business units of ~100 people). They are; Core Banking, Business Banking, Wealth, Borrowing, Growth, Payments, Platform, Fincrime, Security & Expansion. They’re all looking for additional Backend Engineers right now, we do a standard interview process across all our collectives and at the end we will find the best match for you based on your skills, experience, preferences and aligning with the business need! Our backend engineers have a variety of different backgrounds. As long as you enjoy learning new things, we’d love to talk to you. We do not ask for formal qualifications or degree requirements for any of our engineering roles. You should apply if: * you have strong experience working on the backend of a technology product * you want to be involved in building a product that you (and the people you know) use every day * you have a product mindset: you care about customer outcomes and you want to make data-informed decisions * you’re comfortable working in a team that deals with ambiguity * you’re interested in distributed systems and writing resilient software * you have some experience with strongly-typed languages (Go, Java, C, Scala etc.). * you think you’d enjoy the kind of work we’re doing We're on the look out for L50 Engineers at the moment, you can read more in our Engineering Progression Framework - we will interview you across the whole frame work, so if you are not sure what level you are aiming for please chat to your recruiters! Not ticking every box? That’s totally okay! Studies show that women and people of colour might hesitate to apply unless they meet every single requirement. At Monzo, we’re dedicated to creating a diverse and welcoming team. If you’re passionate about this role and keen to learn and grow with us, we encourage you to apply— even if you don’t have everything thats listed just yet. Drop us your application, we’d love to hear from you! What you’ll be working on: We hire very technically agnostic so whilst we use the below technologies we do not expect prior knowledge, you will be fully supported in our organised onboarding to get up to speed in the below: * Go to write our application code (there’s an excellent interactive Go tutorial here) * Cassandra for most persistent data storage * Kafka for our asynchronous message queue * Kubernetes and Docker to schedule and run our services * Envoy Proxy for RPC * AWS for most of our production infrastructure and GCP for most of our data infrastructure * React for our public web apps and internal tools * We also have physical datacenters with actual cables to connect to various third parties The Interview Process: Our interview process involves three main stages: 1. Initial Call 2. Take home task or pair coding exercise 3. Final interview: including a system design and a behavioural interview Our average process takes around 4 weeks but we will always work around your availability. One of our engineers has written a detailed blog on their experience through this process, for extra details, hints and tips please see here. What’s in it for you: 💰 Base salary for this role is depending on experience + Incentive Awards tied to your performance + benefits 📍Barcelona, Spain ⏰ We offer flexible working hours and trust you to work enough hours to do your job well, at times that suit you and your team. 📚Learning budget of €1,200 a year for books, training courses and conferences #LI-JS1 ---------------------------------------------------------------------------------------------------------------------------------- Equal opportunities for everyone Diversity and inclusion are a priority for us and we’re making sure we have lots of support for all of our people to grow at Monzo. At Monzo, we’re embracing diversity by fostering an inclusive environment for all people to do the best work of their lives with us. This is integral to our mission of making money work for everyone. You can read more in our blog, 2026 Diversity and Inclusion Report and 2025 Gender Pay Gap Report. We’re an equal opportunity employer. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity or disability status. If you have a preferred name, please use it to apply. We don't need full or birth names at application stage 😊
WHO WE ARE We simplify wealth creation. Founded in 2014 in Vienna, Austria by Eric Demuth, Paul Klanschek and Christian Trummer, we’re here to help people trust themselves enough to build their financial freedom — for now and the future. Our user-friendly, trade-everything platform empowers both first-time investors and seasoned experts to invest in the cryptocurrencies, crypto indices, stocks*, precious metals and commodities* they want — with any sized budget, 24/7. Our global team works across different cultures and time zones, bringing our products to more than 7 million customers, making us one of Europe’s safest and most secure platforms that powers modern investing. Headquartered in Austria but operating across Europe, our products are built by fast-moving, talented, “roll-up-your-sleeves-and-make-it-happen” kind of people. It’s these diverse perspectives and innovative minds operating as ONE TEAM that keep Bitpanda at the cutting edge of our industry. So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team. Let’s go! YOUR MISSION Build the ultimate gateway to our ecosystem. Designing, scaling, and maintaining the critical systems responsible for safely and efficiently onboarding millions of users across Europe will be your primary focus, all while adhering to strict financial regulations. In this role, tackling complex architectural challenges—such as integrating with cutting-edge third-party identity providers and orchestrating real-time compliance workflows—goes hand in hand with collaborating closely with our Product, Legal, and FinCrime teams to turn complex regulatory requirements into smooth, automated user experiences. WHAT YOU’LL DO * Your day-to-day responsibilities will involve designing and developing scalable, resilient, message-driven services using Java to manage complex user verification pipelines. * Writing clean and correct code with high test coverage is essential as we continuously deploy into an event-driven microservices architecture. * Integrating cutting-edge third-party tools will require taking ownership of our connections with global KYC providers, video-identification services, and AML screening databases. * Ensuring a seamless onboarding experience means optimizing our backend systems to minimize user friction while maintaining absolute regulatory compliance and system reliability. * Close collaboration with cross-functional teams, such as Product Managers, Compliance Officers, and security experts, will be key to rapidly adapting to changing regulatory landscapes. WHO YOU ARE * Solid knowledge and professional experience in backend software development using Java and modern frameworks like Spring Boot form the foundation of your technical skill set. * A deep understanding of relational and non-relational databases is required, with hands-on experience in Postgres and MongoDB being a distinct advantage. * Practical knowledge of message-oriented middleware, specifically Apache Kafka, is necessary to successfully handle high-throughput, asynchronous onboarding events. * Creating, securing, and maintaining publicly available REST APIs is something you handle with a keen understanding of performance optimization, data privacy, and scalability. * Familiarity with modern CI/CD pipelines and practical public cloud experience, preferably utilizing AWS and Kubernetes, rounds out your engineering profile. WHAT’S IN IT FOR YOU * Flexibility to work where you thrive – Enjoy the freedom of our Hybrid working model, combining onsite collaboration and remote work, with an additional 25 days per year to work from a city or country of your choice. * Reward for your impact – Receive a competitive total compensation package aligned with Bitpanda’s pay-for-impact policy, including participation in our stock option plan. * Support for your mental wellbeing – Access confidential coaching, counselling, and mental health resources whenever you need them through OpenUP. * Time to recharge – On top of your standard annual leave, Prioritise your wellbeing with 3 additional days of paid time off to rest, reset, and recharge, available once you’ve been with us for 6 months. * Continuous learning and growth – Grow your skills and stay ahead in your career with unlimited access to Udemy’s library of online courses at your own pace. * Exclusive perks and rewards – Enjoy discounts, rewards, and perks from partners worldwide across lifestyle, wellness, tech, and travel. * Support during life milestones – Take advantage of our additional 8 weeks of gender-neutral new parent leave to welcome and bond with your new addition to the family. * Fuel and focus on-site – Pandas in Vienna, Bucharest, Barcelona, and Berlin can enjoy free onsite dining, with freshly prepared lunches and snacks to keep you fueled and focused all day long. * Recognition for your contributions – Celebrate milestones and achievements with recognition and rewards for your Tenure at Bitpanda. * Show your Bitpanda pride – Access exclusive Bitpanda-branded merchandise and gear to represent. * Connect and celebrate with your team – Join unforgettable company events, from our Winter Party in Vienna to gatherings worldwide, fostering fun, connection, and celebration .…and even more location-specific benefits designed to make life at Bitpanda even more rewarding wherever you are. Above all, you will have the opportunity to learn and grow as part of Bitpanda’s incredible journey towards being Europe’s future #1 investment platform. BITPANDA IS COMMITTED TO FOSTERING A FAIR AND EQUAL ENVIRONMENT BASED ON TRUST AND MUTUAL RESPECT. WE BELIEVE THAT A DIVERSE AND INCLUSIVE WORKPLACE IS PARAMOUNT TO OUR SUCCESS AND WE ARE COMMITTED TO BUILDING A TEAM THAT REPRESENTS A WIDE VARIETY OF BACKGROUNDS, PERSPECTIVES, AND SKILLS. * THESE BENEFITS MAY BE ADJUSTED AT BITPANDA’S DISCRETION AND DO NOT APPLY TO OUR INTERNSHIPS AND EXCEPTIONS TO OUR HYBRID WORKING POLICY APPLY TO TEAMS WITH SHIFT SCHEDULES OR FOR FOLKS WHOSE ROLES REQUIRE THEM TO BE IN-OFFICE (THINK: WORKPLACES TEAM OR IT).
Who we are: At Rover, pets and their people are at the heart of everything we do. We connect pet parents with trusted pet care across the U.S., Canada, Europe, and Australia. Headquartered in Seattle and Barcelona, we’re a values driven, fast-growing tech company focused on building safe and personalized experiences tailored to the needs of each unique pet. We’re investing in AI as a business accelerator and provide every team member access to AI tools in service of creating better experiences for our community. We are proud to be recognized as a great place to work, having been named among the 100 Best Companies to Work For in Seattle Business Magazine and Washington’s Best Workplaces in the Puget Sound Business Journal. At Rover we’re committed to creating an accessible, inclusive, and welcoming community, which starts with our employees. Want to make an impact? Join our pack and come work (and play!) with us. This role is approved for Sponsorship and provides relocation assistance to Barcelona. This role is full-time permanent and hybrid (Mondays & Thursdays in our office in Poblenou in Barcelona).