iOS Engineer at SumUp | Berlin

Join our dynamic Design System team as an iOS Engineer at SumUp, where your expertise will shape the future of our user interface components and experience patterns. Your role will empower product teams to create cohesive and accessible user experiences, translating SumUp’s design language into a comprehensive, reusable library.As our team expands to support…

At SumUp, our mission is to create a fair playing field for small businesses. We empower entrepreneurs by providing them with user-friendly and cost-effective tools for managing payments, finances, and customer relationships.As an Engineering Manager, you will spearhead a new team dedicated to constructing the analytical and commercial backbone of SumUp's global sales channels. You will be responsible for merging attribution and commission models into a cohesive, scalable product that serves as a single, reliable source for commercial insights and incentive operations.Your role will encompass overseeing the newly formed Commercial Systems & Intelligence domain within the Acquisition Value stream, collaborating with various Sales Channels, as well as Pricing, Commissions & Incentives.We seek a hands-on, technically adept leader who can drive excellence in delivery, uphold high engineering standards, and enhance SumUp’s capacity to operate swiftly while ensuring quality and reliability in our web and platform ecosystems.This position uniquely intersects data, commercial strategy, and product development. You will work closely with Analytics, Data Platform, and Revenue teams to transition our methodology from isolated models to a robust, service-oriented product that effectively links analytics and operations.

The AML AI Engineering Squad, a dynamic cross-functional team within the Risk & Compliance tribe, is at the forefront of developing state-of-the-art data products and machine learning solutions. Our mission is to enhance Transaction Monitoring and safeguard our merchant base against Money Laundering and Financial Crime. We leverage automation, AI, and engineering excellence to create innovative products that empower Risk and AML teams to operate more intelligently and efficiently.As a Senior Data Engineer, you will play a pivotal role in establishing a robust, high-quality data foundation that enhances efficiency, drives AI-driven automation, and facilitates data-informed decisions for our Risk and AML teams. Your expertise will be crucial in building and maintaining data pipelines within our system, ensuring that analysts, product managers, and AI systems have access to reliable and trusted data.Join us in shaping the future of financial safety and making a significant impact!

Become an integral part of SumUp's Mobile Platform Squad as an iOS Engineer. With substantial investments in our mobile products, we empower feature teams to deliver exceptional experiences. You will play a pivotal role in building the robust infrastructure that enables iOS engineers across the organization to work efficiently and effectively, directly influencing the future of mobile payments for millions of merchants.Our engineering culture fosters autonomy, collaboration, and innovation. Your contributions will make a significant impact, connecting you with mobile engineers throughout the company.This role emphasizes:Enhancing Developer Experience: Developing and maintaining tools and infrastructure that improve the developer experience, decrease build times, and optimize workflows for our mobile engineering team.Maintaining CI/CD Pipelines: Ensuring the reliability and efficiency of our CI/CD systems, enabling feature teams to ship confidently.Advancing a Mature Codebase: Engaging in the enhancement of our iOS codebase, with a focus on simplicity, maintainability, and long-term viability.Ensuring Product Stability: Offering foundational support across our iOS products to guarantee consistency and reliability for merchants globally.

Team OverviewThe Card Not Present (CNP) Protect team is a dynamic, cross-functional unit within SumUp's Risk & Compliance tribe. We are dedicated to safeguarding millions of merchants by mitigating fraud in our card-not-present offerings. Our team excels in developing robust machine learning systems and data pipelines that facilitate real-time automated decision-making. We are currently enhancing our infrastructure to incorporate foundation model embeddings. This role offers significant ownership and impact, directly influencing the efficacy of our fraud detection mechanisms.Key ResponsibilitiesDesign, implement, and sustain high-quality Python-based data pipelines that support machine learning workflows, featuring real-time and near-real-time data processing.Assume complete responsibility for data quality and reliability, executing validations, automated testing, monitoring, and alerting with established SLAs.Enhance our data foundation by meticulously documenting architecture, data lineage, dataset definitions, and managing dependencies.Lead the governance of our Feature Store, refining usability and standardizing setup to enable data scientists to operate with speed and confidence.Collaborate closely with the Risk Platform, ML Data Platform, data scientists, software engineers, and analysts to ensure safe deployment of changes to production.

About the Team: Join our dynamic Commercial Analytics Team within Finance at SumUp, where we are on the lookout for a talented Data Analyst to bolster our strategic initiatives. In this pivotal role, you will collaborate closely with the Global and European Finance Planning & Analysis (FP&A) teams, developing data models, crafting insightful reports and dashboards, and performing advanced analyses that drive impactful business decisions. Your contributions will significantly shape our business outcomes while you engage with an experienced data team, furthering the growth of our analytics chapter. Your Responsibilities: Design and manage efficient data models to monitor financial performance and key performance indicators (KPIs) throughout the customer lifecycle—from acquisition to churn—tracking metrics like recurring revenue, payback, lifetime value, and customer acquisition cost (utilizing dbt). Create user-friendly dashboards that empower self-service analytics for the Finance team and SumUp leadership. Collaborate with stakeholders to translate data into actionable insights, merging quantitative analysis with business context to facilitate informed decision-making. Contribute to data-driven objectives aligned with SumUp’s business goals, including merchant segmentation and performance evaluation. Work alongside cross-functional teams to ensure reliable data collection, proper structuring, and ease of access for analytical purposes. What We Are Looking For: At least 2 years of experience in data analytics and data modeling, ideally with practical experience. Proficient in creating advanced reports and dashboards using Google Sheets or similar tools. Experience in developing scalable, user-friendly dashboards adhering to best practices, preferably with Tableau or comparable visualization tools. Ability to translate financial and business requirements into meaningful KPIs, data models, and actionable insights across various functions. Strong problem-solving and critical thinking abilities, with excellent communication skills for effective collaboration with go-to-market and leadership stakeholders. A solid technical foundation paired with business acumen in finance, stakeholder management, and data visualization. Why Join SumUp? Be part of a global team working on large-scale fintech products utilized by millions of businesses worldwide, all from our Berlin office. This includes an office-friendly environment that fosters collaboration and innovation.

About the Role As the Chief of Staff at SumUp, you will serve as a strategic ally to a C-level executive, facilitating the translation of organizational strategy into actionable plans. This pivotal role involves overseeing, planning, and communicating global initiatives and projects while enhancing the efficiency of various teams and processes. You will engage in close collaboration with C-level stakeholders to manage a wide range of topics and initiatives. Your responsibilities will encompass project management, strategic initiative oversight, communications, and cross-functional coordination, requiring a deep understanding of SumUp's context and an ability to handle sensitive and confidential information. This position significantly impacts decision-making at the leadership level. Beyond project delivery, the Chief of Staff will drive essential events and communications, including all-employee meetings, retreats, and quarterly OKR reviews, ensuring that our mission and strategy remain central to these interactions. In essence, you will play a crucial role in shaping the future of SumUp. What You’ll Do Collaborate across functions to facilitate change, advance strategic projects, and ensure teams meet their objectives. Plan and facilitate key meetings, such as board meetings, OKR sessions, and annual retreats. Continuously enhance collaborative practices within teams. Manage budget and financial planning in conjunction with FP&A, particularly concerning Capital Allocation Agreements. Coordinate resources for special initiatives and projects, including project management follow-through, and at times, leading specific initiatives. Organize pivotal team events that reinforce company culture, connectivity, and alignment with strategic goals. Communicate effectively through compelling internal and external storytelling.

Role overview SumUp seeks a Senior Internal Auditor in Berlin to help ensure the integrity of its financial operations. The position centers on maintaining and refining internal audit procedures, with the goal of supporting both efficiency and compliance across the organization. What you will do Carry out internal audits to evaluate financial controls and processes Collaborate with teams from various departments to collect information and review procedures Spot opportunities for improvement and offer practical recommendations Provide insights that shape financial strategies and guide decision-making Location This role is based in Berlin, Germany.

Role overview SumUp is looking for a Senior Product Designer to join the team in Berlin. This role centers on creating design solutions that make user experiences smoother and more intuitive across SumUp’s products. The team welcomes creative perspectives and values strategic thinking, especially from designers who care about putting users first. What you will do Collaborate with cross-functional teams to help shape the product vision Develop wireframes and prototypes to express and test design concepts Organize and run user testing sessions to collect feedback and improve designs Lead design processes to deliver products that are both functional and visually engaging Requirements Background in designing digital products with attention to usability and visual quality Creative and strategic approach to solving product challenges Experience working effectively within collaborative, cross-functional teams This position is based in Berlin, Germany.

(Flexible start date, internship duration: at least 4 months)At SumUp, we are committed to empowering small businesses worldwide by offering simple and affordable financial tools that help them thrive. Today, over 4 million businesses across 36 markets depend on SumUp as their trusted financial partner for managing payments, finances, and customer relationships.We are seeking a Revenue Planning Intern to join our vibrant Revenue Operations (RevOps) team. This is a unique opportunity to delve into the financial engine of a rapidly growing FinTech company, gaining practical experience in financial modeling, forecasting, and performance analysis.This internship is not just a learning experience; it plays a crucial role in enhancing our analytical capabilities during a phase of rapid growth and increasing operational complexity. You will be instrumental in supporting essential weekly and monthly reporting, maintaining key revenue forecasting models, and assisting in building our future talent pipeline.If you are enthusiastic about making a meaningful impact and eager to learn from the ground up, this position is perfect for you!

At SumUp, our mission is to empower small businesses by leveling the playing field. We provide small business owners with intuitive and affordable tools to manage payments, finance, and customer relationships. This pivotal engineering leadership position within our Lifecycle Tribe is dedicated to building and refining a world-class, high-performing website that serves as the gateway for merchants to discover, assess, and engage with SumUp—from their first interaction through activation and beyond. You will lead cross-functional teams focused on customer-facing platforms and digital experiences that are fundamental to how merchants interact with SumUp. Your work will involve tackling modern web architectures, addressing scalability challenges, and employing data-informed decision-making to enhance quality and performance. We are looking for someone with substantial hands-on experience in developing and managing large-scale, consumer-grade websites where performance, accessibility, and rapid iteration are of utmost importance. We seek a hands-on, technically proficient leader who can champion delivery excellence, uphold high engineering standards, and reinforce SumUp's capacity to act swiftly while ensuring quality and reliability across our web and platform ecosystems.

Revenue Planning Analyst Location: Berlin | Office-first About Our Team The Revenue Planning team is a pivotal component of SumUp's commercial framework, expertly transforming intricate data regarding products, markets, and merchant segments into actionable financial insights that guide our growth trajectory. As we expand our influence—from automating forecasting processes to enhancing our finance business partnerships—this role becomes crucial. You will engage with models and analyses that directly impact the allocation of marketing investments across millions of merchants in diverse markets, granting you significant commercial responsibility early in your career. Your Responsibilities Enhance and maintain the Customer Acquisition Budget (CAB) consolidation model, creating a unified Payback view by country across European channels. Facilitate the migration of forecasting processes from Google Sheets to scalable platforms like Pigment, boosting accuracy across various products and markets. Serve as the finance business partner for Brand Marketing, overseeing the Acquisition forecasting process and aiding in the Brand performance matrix. Conduct in-depth analyses across countries, channels, and merchant segments to uncover opportunities for optimizing CAB spending and enhancing Payback. Develop financial models to bolster product-level revenue and Payback forecasting. Assist the Operations team with a merchant acquisition forecast segmented by category to streamline onboarding and customer support planning. Ideal Candidate Profile Demonstrated experience in an analytical capacity such as Financial Planning & Analysis (FP&A), business analytics, consulting, or data analytics, with practical exposure to financial modeling or forecasting. Exceptional proficiency in Excel or Google Sheets, capable of independently developing, maintaining, and refining complex models. Familiarity with SQL and the ability to extract and manipulate data from databases effectively. Skilled in transforming business inquiries into structured analytical frameworks and conveying findings clearly to non-technical stakeholders. Proficient in managing multiple priorities within a cross-functional environment, exhibiting a proactive and organized approach to ownership. Why Join SumUp? Seize the opportunity to collaborate with a global team of SumUppers on large-scale fintech products that serve millions of businesses worldwide.

Join Our Dynamic AI Team:At SumUp, a leader in the fintech space, we are dedicated to providing an unparalleled customer experience. Our Global Operations team seeks a talented and enthusiastic Data Scientist to enhance our AI initiatives. You will play a pivotal role in developing models that directly impact customer interactions and the overall efficacy of our AI products.In this position, you will engage in the design, testing, and implementation of advanced machine learning and AI models. Your efforts will bolster our customer support framework by pinpointing areas for improvement and customizing experiences to meet merchant requirements.Your collaboration with diverse teams—including analysts, ML engineers, and product managers—will be essential in translating business objectives into actionable, measurable ML solutions. Your work will shape the future of our customer support, enabling SumUp to remain a customer-centric organization.

At SumUp, our mission is to empower small businesses by providing them with accessible and user-friendly tools for payments, finance, and customer relationships. We are a dynamic team grounded in our core values: Founder’s Mentality, Team First, and We Care. We foster an organization that is people-oriented, disciplined, and consistently innovating from within. Agility is at the heart of what we do, and we strive to create an environment that nurtures it. As part of our Global Operations team, you will play a pivotal role in enhancing the customer experience in fintech. The Senior AI/ML Engineer position is essential for the development and deployment of cutting-edge AI solutions that streamline support processes and significantly enhance the experience for our merchants and support agents. You will be a central figure in building and maintaining the ML infrastructure and tools that support our core products utilizing advanced AI/ML models. This role is vital for sustaining our growth, particularly as we expand complex applications such as our AI Assistant and translation tools.

Role Overview airapps is looking for an iOS Engineer in the Berlin Metropolitan Area. This role focuses on building mobile applications that improve user experience and product efficiency. The team values collaboration between engineers and designers to deliver high-quality, scalable iOS apps. What You Will Do Develop and maintain iOS applications for airapps products Work closely with engineers and designers to refine app features and usability Contribute technical expertise to make products more user-friendly and efficient

UNLOCK YOUR POTENTIAL WITH TRADE REPUBLIC As Europe's leading savings platform, Trade Republic operates across 18 countries, catering to over 10 million customers who have entrusted us with more than 150 billion Euros in assets. Our ambition is to achieve even greater heights. Join us in our mission to empower individuals to build wealth through accessible, safe, and free financial systems. Here, you will have the chance to advance your career while collaborating with exceptional talents and cutting-edge technology to create a positive impact on millions. YOUR ROLE Share your expertise within the iOS guild to uphold technical excellence. Mentor fellow engineers while receiving guidance to support your professional development. Take charge of product development by collaborating across teams to ensure quality and timely delivery. Thrive in a dynamic, goal-oriented agile environment. WHAT WE SEEK Minimum of 5 years experience in mobile engineering. Proficient in Swift, programmatic UI, and foundational knowledge of reactive programming. A passion for exceptional UX/UI, with a desire to collaborate closely with our design team. A commitment to quality, with knowledge of best practices in code and product development. TECHNOLOGY STACK 100% Swift SwiftUI and UIKit Reactive data flow utilizing Combine, ReactiveSwift, and WebSockets MVVM-C architecture Dependency Injection WHY JOIN US NOW Our culture values ownership, excellence, and high energy. We are deeply committed to outcomes and accountability, and we strive to tackle one of Europe's largest challenges: closing the pension gap and democratizing wealth. If this resonates with you, we want to hear from you! We celebrate the diverse identities and backgrounds of our team, believing they strengthen us. We are dedicated to fostering an environment where everyone is respected and has equal opportunities to thrive. For inquiries regarding DEI during the interview process, please speak with your recruitment partner.

Team overview The Small Markets Customer Support team at SumUp connects directly with merchants who rely on our services every day. Team members handle inquiries and issues through phone, chat, and email, providing support in the language each merchant prefers. The team plays a key part in building trust and keeping our merchant community running smoothly. Role overview This Customer Support Agent position focuses on supporting Finnish-speaking merchants, as well as communicating in English. The opening comes as the previous Finnish-speaking agent has moved into a new role within the team. The new agent will step in to maintain strong support for our Finnish merchant base. Based in Berlin, this role offers a chance to start a career in fintech. From the first day, the agent will take on meaningful responsibilities and have a clear path for professional growth. What you will do Assist merchants by phone, chat, and email in both Finnish and English Deliver prompt, friendly, and effective support Help merchants resolve questions and challenges, ensuring a positive experience with SumUp

The Run & Grow Tribe of Tribes drives the systems, insights, and experiences that empower millions of merchants to thrive and grow with SumUp across all markets. We are at a pivotal moment in our data journey, transitioning from fragmented pipelines to a robust data foundation characterized by stable business domains, reliable metrics, and AI-ready data products. This is a unique opportunity to influence how data is managed, defined, and constructed at scale. As our Analytics Engineer, you will be the vital link that brings this vision to fruition.ResponsibilitiesCollaborate with teams across the tribe on event design and data contracts, ensuring staging pipelines are well-maintained, modeling conventions are applied, and domain outputs remain consistent, tested, and easily discoverable.Model critical business domains—such as merchant activity, product adoption, lifecycle events, and risk scoring—delivering well-documented, quality-assured data products that serve as the trusted source of truth organization-wide.Develop and sustain the insights layer atop governed domains, creating reusable KPI models, funnels, cohorts, and segmentations that Product, Commercial, and AI teams can access confidently on their own.Implement technical enhancements like incremental processing strategies, performance optimizations, and scalable data architectures to accommodate increasing data volumes.Contribute to SumUp's overarching data domain strategy, helping to establish strong ownership, consistent definitions, and a shared catalog of data products that facilitate self-service analytics and AI at scale.QualificationsDemonstrated expertise in analytics or data engineering, with a proven history of developing and maintaining production data systems.Advanced SQL capabilities for complex transformations and query optimization, with hands-on experience in building production-level data pipelines.

Launch your sales career – 100% commission-based with no income cap! About Us: Are you ready to embrace the challenge of working independently, shaping your own successes, and managing your schedule? If so, you’ve found the right place! SumUp empowers small businesses with smart and user-friendly financial solutions, ranging from card payments to comprehensive POS systems. Our mission is to enable entrepreneurs to focus entirely on growing their business. Your Role as a Field Sales Consultant As a self-employed Field Sales Consultant, you are your own boss and can earn attractive, unlimited commissions! You will establish relationships with local businesses and demonstrate how SumUp can simplify their operations. Your primary responsibility is direct sales of our solutions - whether it’s mobile card terminals or extensive payment systems, you have everything you need to succeed. What Awaits You: 100% performance-based compensation – your income is directly tied to your efforts, with no upper limit. Maximum flexibility – work whenever and wherever you want. Top products with high market potential – compelling solutions for small businesses. Training & Sales Support – we will not leave you alone. Your Responsibilities: Active customer acquisition – identify and win over local businesses...

Join our Global Bank tribe at SumUp, where we are revolutionizing the infrastructure for merchants by providing them with a digital business account that simplifies their banking needs. Our mission is to become the top banking partner for small merchants worldwide, delivering a seamless, straightforward, and cost-effective experience. As a valued member of our team, you will be instrumental in transitioning from a fragmented regional setup to a cohesive global infrastructure, thereby enabling millions of merchants to enjoy tailored banking solutions. In the role of Senior Backend Engineer on the Global Accounts team, you will take ownership of vital components of our bank account platform. You will be involved in the design and development of a fully distributed, event-driven system built for scalability, resilience, and compliance. Your primary development language will be Kotlin, with opportunities to work with Elixir and Golang. We embrace Extreme Programming methodologies: frequent iterations, daily releases, and a strong emphasis on technical excellence and deep problem-solving. Our tech stack includes Kotlin, Golang, Elixir, Java, AWS, Kafka, PostgreSQL, and Kubernetes, complemented by observability tools such as Prometheus, Grafana, and Honeycomb. We also leverage AI-assisted development tools like Cursor and GitHub Copilot.