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senior backend engineer (m/f/d)

backend software engineer

Neural Frames

<div>
 <p>
  Neural Frames is a leading AI music video generator, turning any song into a fully produced music video in minutes. We're bootstrapped, profitable, and growing fast at over $5M ARR.
 </p>
 <br/>
 <p>
  Our ambition is to build a category-defining company, helping tens of millions of audio creators to visualize their content and promote it online.
 </p>
 <br/>
 <p>
  As a profitable company, there is no VC drama. We are a small, ambitious group of people, striving to build something creators love.
 </p>
 <br/>
 Tasks
 <br/>
 <ul>
  <br/>
  <li>
   Own the systems that turn songs into videos: video generation pipelines, model orchestration, queue management, and the infrastructure that keeps it all running at scale.
  </li>
  <br/>
  <li>
   Design and build backend services in Python that orchestrate multiple AI providers (we work with fal, BytePlus, OpenRouter, AWS and others) and gracefully handle their quirks, failures, and pricing trade-offs.
  </li>
  <br/>
  <li>
   Improve reliability, latency, and cost across the generation stack. Every second shaved off a render and every cent saved per video compounds across millions of generations.
  </li>
  <br/>
  <li>
   Build the infrastructure for new product surfaces working closely with the founder and tech lead on architecture decisions.
  </li>
  <br/>
  <li>
   Instrument and monitor what you ship. You'll have real visibility into how your code performs in production and the autonomy to fix what's broken.
  </li>
  <br/>
  <li>
   Contribute to the AI/ML side of the stack: prompt engineering, model evaluation, fine-tuning pipelines, and experimenting with new models as they ship.
  </li>
  <br/>
 </ul>
 <br/>
 Requirements
 <br/>
 <ul>
  <br/>
  <li>
   You've shipped production Python backends that handled real load - async workloads, queues, retries, the unglamorous stuff that makes systems actually work.
  </li>
  <br/>
  <li>
   You're comfortable working with AI APIs and have opinions about how to wrangle them: cost, latency, failure modes, model selection.
  </li>
  <br/>
  <li>
   You think in systems. When something breaks, your instinct is to find the root cause, not patch the symptom.
  </li>
  <br/>
  <li>
   You have high agency. You see a bottleneck, you fix it. You don't wait for a ticket.
  </li>
  <br/>
  <li>
   Bonus points: experience with video/audio processing pipelines (ffmpeg, GStreamer, etc.), GPU orchestration, multi-provider AI infrastructure, or distributed systems at scale.
  </li>
  <br/>
  <li>
   You're genuinely excited about generative AI and where it's heading. You probably have a side project or two that proves it.
  </li>
  <br/>
  <li>
   You're based in Berlin and can join us in the office on at least four days a week.
  </li>
  <br/>
 </ul>
 <br/>
 Benefits
 <br/>
 <p>
  VSOPs &amp; Profit Sharing. Bi-weekly team lunches, regular team events, an annual summer offsite, learning &amp; development support, productivity tools, a one-time headphone budget, Deutschlandticket, and a &euro;5,000 referral bonus.
 </p>
 <br/>
 <p>
  neural frames is dedicated to creating an equitable, inclusive, and supportive work environment that brings people together from diverse backgrounds, experiences, and perspectives. Our strength is in our differences. We're proud to be an equal opportunity employer and welcome all applicants as we're committed to promoting a culture of opportunity for all.
 </p>
</div>


Backend Software Engineer // AI Music Video Platform

BETA Systems Software AG

<div><div><div><div><div><h2 class="jobSectionHeader"><b>&Uuml;ber uns</b></h2></div><div><p>
Wir sind ein unabh&auml;ngiger, mittelst&auml;ndischer Softwareanbieter. 50 Prozent der gr&ouml;&szlig;ten europ&auml;ischen Banken sowie &ouml;ffentliche Einrichtungen und Unternehmen aller Branchen sichern ihre sensiblen Gesch&auml;ftsprozesse mit unseren L&ouml;sungen ab.</p><p>
Hochwertige Softwareprodukte im Bereich <b>Sicherheit und Nachvollziehbarkeit in der IT</b> und zur automatisierten Verarbeitung gr&ouml;&szlig;ter Daten- und Dokumentenmengen lassen uns als deutsches Unternehmen zu einem der <b>f&uuml;hrenden Mittelst&auml;ndler in Europa</b> z&auml;hlen.</p><p>
Es gibt deutschlandweit vier Standorte in <b>Berlin, M&uuml;nchen, K&ouml;ln und Neustadt an der </b>Weinstra&szlig;e. Zus&auml;tzlich gibt es &uuml;ber 20 Tochtergesellschaften weltweit.</p><p>
Wir sind ein f&uuml;hrender Anbieter im Bereich Identity &amp; Access Management und unterst&uuml;tzen Unternehmen dabei, ihre digitale Sicherheit effizient zu gestalten. Unsere L&ouml;sungen erm&ouml;glichen es, Nutzeridentit&auml;ten zentral zu verwalten, Zugriffe zu kontrollieren und Compliance-Anforderungen zu erf&uuml;llen. Zur Verst&auml;rkung unseres Entwicklungsteams am Standort Berlin suchen wir ab sofort einen:</p><p><b>
Senior Software Engineer (Backend) (m/w/d)</b></p></div></div><div><div><h2 class="jobSectionHeader"><b>
Deine Aufgaben</b></h2></div><div><p>
Als Senior Backend Developer bist du Teil eines europ&auml;ischen Entwicklungsteams (Schwerpunkt Deutschland) und entwickelst moderne, skalierbare Backend-Systeme im Umfeld von Identity &amp; Access Management (IAM). Du gestaltest aktiv Architektur, Datenmodelle und Entwicklungsprozesse &ndash; inklusive des Einsatzes von KI zur Unterst&uuml;tzung in der Softwareentwicklung. Zu den wichtigsten Aufgaben geh&ouml;ren:</p><p></p><ul><li>
Entwicklung und Weiterentwicklung von Backend-Systemen auf Basis von<b> Java / Spring Boot</b></li><li>
Design und Implementierung von <b>Microservices und API-basierten Architekturen</b></li><li>
Modellierung und Optimierung von <b>Datenbanken</b></li><li>
Aufbau und Pflege von <b>CI/CD-Pipelines</b> (GitLab) sowie <b>Build- und Deployment-Prozessen</b></li><li>
Umsetzung fachlicher Anforderungen in robuste, <b>wartbare Softwarel&ouml;sungen</b></li><li>
Einsatz von <b>KI-Tools</b> zur Unterst&uuml;tzung von Entwicklung, Testing und Refactoring</li><li>
Enge <b>Zusammenarbeit</b> im agilen Team sowie <b>Mentoring </b>von Kollegen</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>
Dein Profil</b></h2></div><div><ul><li>
Begeisterung und Leidenschaft f&uuml;r die Softwareentwicklung</li><li>
Nachweisliche Erfahrung als Senior Software Engineer</li><li>
Mehrj&auml;hrige Erfahrung in der Backend-Entwicklung mit Java / Spring Boot</li><li>
Erfahrung mit GitLab CI/CD, Build- und Deployment-Prozessen</li><li>
Erfahrung mit Cloud-nativen Architekturen und Microservices</li><li>
Fundiertes Verst&auml;ndnis von Softwarearchitektur, Design Patterns und Clean Code</li><li>
Praktische Erfahrung mit KI-gest&uuml;tzter Softwareentwicklung</li><li>
Strukturierte, eigenverantwortliche Arbeitsweise und ausgepr&auml;gte Teamf&auml;higkeit</li><li>
Gute Deutsch- und Englischkenntnisse</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>
Was wir anbieten:</b></h2></div><div><ul><li>
Unbefristeter Arbeitsvertrag und 30 Tage Urlaub</li><li>
Flexible Arbeitszeiten, Homeoffice-Option und moderne Arbeitsmittel</li><li>
Betriebliche Altersvorsorge, die von uns bezuschusst wird</li><li>
Arbeitgeberfinanzierte Unfall- und Berufsunf&auml;higkeitsversicherung</li><li>
Zuschuss zum Jobticket</li><li>
Fahrrad-Leasing mit Zuschuss</li><li>
Kontinuierliche Weiterbildungs- und Weiterentwicklungsm&ouml;glichkeiten</li><li>
Exklusive Mitarbeiterangebote mit Sonderkonditionen f&uuml;r Produkte und Leistungen renommierter Hersteller und Marken</li><li>
Eine angenehme und lockere Arbeitsatmosph&auml;re mit gelebter Du-Kultur</li><li>
Ein betriebliches Gesundheitsmanagement (Yoga- und R&uuml;ckenfitkurse, Psychologie- und Facharztservice doQtor)</li></ul></div></div><div><div><h2 class="jobSectionHeader"><b>
Kontakt</b></h2></div><div><p>
Haben wir Dein Interesse geweckt?</p><p>
Dann bewirb Dich &uuml;ber unseren Online-Bewerberbogen. Wir freuen uns!</p><h2 class="jobSectionHeader"><b>
Garancy AG</b></h2><p>
Vivien B&ouml;hm<br>
Human Resources</p></div></div></div></div></div><div></div>

Senior Software Engineer (Backend) (m/w/d)

Flix SE

<div></div><div><div><div><div><p><b>City:</b> Berlin<br>
<b>Department:</b> IT &amp; Engineering</p>
<p><b>Recruiter:</b> Anna Symonenko</p></div><div></div><div><br>
</div></div><div></div><div><div><div><p>At Flix, we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.</p>
<p>
We're looking for an experienced<b> Python Engineer (m/f/d)</b> to join our Supply Division. You'll make an impact by taking ownership of core backend systems that power our network planning optimization product. Your work directly supports network planners in scheduling vehicles, drivers, and timetables &mdash; improving travel experiences for millions of passengers while driving profitability.</p>
<p>
Our team builds and maintains an optimization platform addressing use cases from vehicle and driver scheduling to timetable optimization. We follow modern system design &mdash; Domain-Driven Design, Hexagonal Architecture, and SOLID principles &mdash; with strict architectural boundaries enforced by tooling. Our backend workloads (APIs, event consumers, Kubernetes jobs) are built with high code quality standards.</p>
<p>
The product's algorithm engine is developed by Operations Research Engineers using mathematical optimization. As a Python Engineer, you will own the engineering shell around these algorithms: the APIs, use cases, data pipelines, infrastructure, and the domain models that connect optimization output to the rest of the system.</p>
<p>
You'll collaborate closely with other engineering teams to design and implement the interfaces and contracts that connect our platform to the wider system landscape.</p>
<p><b>
Our current tech stack and toolset include:</b></p>
<ul>
<li>Python, TypeScript, Shell scripting</li>
<li>Flask, React, Pytest</li>
<li>PostgreSQL, Confluent Kafka, DataDog</li>
<li>AWS tools, Terraform</li>
<li>GitLab, Kubernetes, Docker, Azure AD</li>
</ul>
<p><b>About the Role</b></p>
<ul>
<li>Own and evolve the backend: APIs, use case layer, domain models, serialization, and event-driven pipelines (Kafka)</li>
<li>Take engineering ownership of new product modules &mdash; designing the architectural scaffold, wiring layers, and ensuring clean boundaries</li>
<li>Build and maintain infrastructure: Kubernetes deployments, CI/CD pipelines, and cloud resources (AWS)</li>
<li>Collaborate closely with Operations Research Engineers to integrate optimization algorithms into the product</li>
<li>Work in an AI-augmented development workflow &mdash; actively using code agents and AI assistants as a natural part of how you ship software</li>
<li>Contribute to architecture decisions and uphold code quality through reviews, testing, and continuous improvement</li>
<li>Write well-tested, self-documenting code following hexagonal architecture patterns</li>
<li>Share your expertise and mentor colleagues, promoting a culture of knowledge sharing and learning</li>
</ul>
<p><b>About You</b></p>
<ul>
<li>Academic background in Computer Science or equivalent</li>
<li>3+ years of experience in backend software engineering with Python</li>
<li>You're comfortable driving alignment across teams &mdash; designing interfaces, agreeing on contracts, and taking end-to-end ownership of integrations</li>
<li>It's beneficial is you have experience with modern front-end stack (some basic front-end tasks are part of our scope)</li>
<li>Experience applying clean architecture principles (hexagonal, ports-and-adapters, DDD) or similar approaches in production</li>
<li>Experience with relational databases (PostgreSQL) and event-driven systems (Kafka or similar)</li>
<li>Hands-on experience with AI-augmented development and eager to make it a core part of how you work</li>
<li>Solid experience with containerization (Docker, Kubernetes) and CI/CD pipelines</li>
<li>Familiar with testing best practices: unit, integration, acceptance testing</li>
<li>Experience with cloud platforms (AWS or similar) and infrastructure as code (Terraform)</li>
<li>Familiarity with mathematical optimization or data-intensive applications is a plus</li>
</ul>
<p>We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!</p>
<p><b>
What We Offer</b></p>
<ul>
<li><b>Travel perks</b>: 12 free Flix vouchers + 12 discount vouchers for friends &amp; family.</li>
<li><b>Work from (M)Anywhere</b>: Depending on your role, work from another location for up to 60 days per year.</li>
<li><b>Hybrid work model</b>: We are an office-first company, but we offer flexibility to balance work and life.</li>
<li><b>Wellbeing support</b>: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.</li>
<li><b>Learning &amp; Development</b>: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.</li>
<li><b>Mentoring Program</b>: Connect with experienced colleagues to gain insights and accelerate your career.</li>
</ul>
<p>To view more local benefits specific to each office location,</p>
<p></p>
<p><b>Why Join Flix?</b></p>
<p>
At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.</p>
<p>
If you&rsquo;re looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey!</p></div></div></div></div></div><p></p>

Python Engineer (m/f/d) - Network Planning

Cycle

<div><h4 class="jobSectionHeader"><b>About us</b></h4><p></p><p>
At CYCLE, we&rsquo;re redefining urban mobility for the people who keep cities moving: couriers, riders, and delivery pros. Our e-bike subscription service combines durable vehicles, fast repairs, and real support, everything riders need to stay on the road.</p><p>
From Berlin to London, Vienna to Amsterdam, we operate in 200+ cities across Europe, providing thousands of riders with bikes built for work, not for show.</p><p>
Our mission is simple: make last-mile delivery more reliable, affordable, and sustainable, one ride at a time. With every bike we deploy, we&rsquo;re helping build the backbone of smarter, greener cities.</p><p>
Ride with us into the future &ndash; sustainable, efficient, and full speed ahead!</p><p></p><h4 class="jobSectionHeader"><b><br>
Your Mission</b></h4><p></p><p>
As a Backend Software Engineer, you will shape the integration and ongoing development of our ERP and backend systems. You will ensure internal processes and interfaces run smoothly, supporting the operations and finance teams that keep our fleet running.</p><ul><li>
Developing, customizing and maintaining Odoo modules in Python</li><li>
Designing and implementing system integrations between Odoo and other internal/external systems (e.g. via REST APIs)</li><li>
Automating business processes within the ERP system</li><li>
Analyzing functional requirements together with business units (e.g. Finance, Operations) and implementing technical solutions</li><li>
Ensuring data quality, performance and stability of the systems</li><li>
Troubleshooting and resolving integration issues</li><li>
Documenting system architecture and processes</li></ul><p></p><h4 class="jobSectionHeader"><b>
Your skills and qualifications</b></h4><p></p><ul><li>
Professional experience in backend development with Python</li><li>
Understanding of ERP processes (e.g. accounting, warehousing, sales)</li><li>
Experience with relational databases (PostgreSQL) and API interfaces</li><li>
Structured, solution-oriented way of working</li><li>
Good communication skills for working with non-technical stakeholders</li><li>
Good German and English skills</li><li>
Nice to have<ul><li>
Hands-on experience with Odoo (developing custom modules, customizing)</li><li>
Experience with additional integration tools (e.g. message queues, ETL processes)</li><li>
Knowledge of logistics, fleet or mobility IT</li></ul></li></ul><p></p><h4 class="jobSectionHeader"><b>
What you can expect from us</b></h4><p></p><ul><li>
Competitive salary aligned with your skills and experience</li><li>
Room to shape the technical evolution of our systems landscape</li><li>
Close collaboration with business units and direct impact on operational processes</li><li>
Flexible working hours and remote/hybrid options</li><li>
Opportunities for personal and professional growth</li></ul><p></p><h4 class="jobSectionHeader"><b><br>
Diversity</b></h4><p></p><p>
CYCLE values diversity and is an equal opportunity employer, providing a safe and inclusive space for everyone. No matter your gender, gender identity, age, disability, body size, race, religion, sexual orientation or nationality, we would love to receive your application! If there is anything we can do to make your recruiting process more comfortable or accessible, please don&rsquo;t hesitate to let us know in advance.</p></div><p></p>

Software Engineer (f/m/d) - Berlin

<div>
 <strong>
  We help the world run better
  <br/>
  <br/>
 </strong>
 At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging &ndash; but it matters. You'll find a place where you can be yourself, prioritize your wellbeing, and truly belong. What's in it for you? Constant learning, skill growth, great benefits, and a team that wants you to grow and succeed.
 <br/>
 <br/>
 <strong>
  What You'll Build
  <br/>
  <br/>
 </strong>
 Ready to shape the infrastructure that powers SAP's cloud commerce? As a Developer on the BTP Metering &amp; Reporting team, part of SAP's Commercial Foundation Services, you'll build the cloud-native services that track and report how SAP products are used by customers worldwide &ndash; feeding directly into billing, compliance, and consumption-based business models. Your work will be embedded at the core of the SAP Business Technology Platform and will be relied upon by dozens of product teams across SAP and its partners.
 <br/>
 <br/>
 You'll design and implement backend services and REST APIs in Java and Go, work with cloud infrastructure on Cloud Foundry and Kubernetes, and integrate with SAP billing and compliance systems. You'll own features from the first line of code through to production, working within an Agile team that values quality, accountability, and continuous improvement.
 <br/>
 <br/>
 <strong>
  What You Bring
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   3+ years of backend development experience in Java, with solid knowledge of Spring (MVC / Boot) and REST API design.
  </li>
  <li>
   Hands-on experience with SQL databases &ndash; you're comfortable with data modelling, schema design, and writing efficient queries.
  </li>
  <li>
   A cloud and automation mindset: you've worked with CI/CD pipelines (Jenkins, Maven) and container technologies (Docker, Kubernetes or Cloud Foundry).
  </li>
  <li>
   Strong engineering fundamentals &ndash; clean code, SOLID principles, and a genuine commitment to test coverage.
  </li>
  <li>
   A collaborative, results-driven approach: you communicate clearly, take ownership of your work, and help teammates when they're stuck.
  </li>
  <li>
   Experience with Go, or eagerness to pick it up quickly &ndash; it's part of our stack.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Where you belong
  <br/>
  <br/>
 </strong>
 You'll join a small, international team of engineers in Berlin who care deeply about code quality and take pride in running reliable, scalable systems. We work in short Agile cycles, review each other's code openly, and make technology decisions together. If you like understanding how your software performs in production &ndash; not just in theory &ndash; you'll feel right at home. SAP invests in your growth through learning platforms, mentoring, and the opportunity to move across a large, diverse organization.
 <br/>
 <br/>
 #SAPBTPCFSCareers #SAPCareers
 <br/>
 <br/>
 <strong>
  Bring out your best
  <br/>
  <br/>
 </strong>
 SAP innovations help more than four hundred thousand customers worldwide work together more efficiently and use business insight more effectively. Originally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end business application software and related services for database, analytics, intelligent technologies, and experience management. As a cloud company with two hundred million users and more than one hundred thousand employees worldwide, we are purpose-driven and future-focused, with a highly collaborative team ethic and commitment to personal development. Whether connecting global industries, people, or platforms, we help ensure every challenge gets the solution it deserves. At SAP, you can bring out your best.
 <br/>
 <br/>
 <strong>
  We win with inclusion
  <br/>
  <br/>
 </strong>
 SAP&rsquo;s culture of inclusion, focus on health and well-being, and flexible working models help ensure that everyone &ndash; regardless of background &ndash; feels included and can run at their best. At SAP, we believe we are made stronger by the unique capabilities and qualities that each person brings to our company, and we invest in our employees to inspire confidence and help everyone realize their full potential. We ultimately believe in unleashing all talent and creating a better world.
 <br/>
 <br/>
 SAP is committed to the values of Equal Employment Opportunity and provides accessibility accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment with SAP and are in need of accommodation or special assistance to navigate our website or to complete your application, please send an e-mail with your request to Recruiting Operations Team: Careers@sap.com.
 <br/>
 <br/>
 For SAP employees: Only permanent roles are eligible for the SAP Employee Referral Program, according to the eligibility rules set in the SAP Referral Policy. Specific conditions may apply for roles in Vocational Training.
 <br/>
 <br/>
 <strong>
  AI Usage in the Recruitment Process
  <br/>
  <br/>
 </strong>
 For information on the responsible use of AI in our recruitment process, please refer to our Guidelines for Ethical Usage of AI in the Recruiting Process.
 <br/>
 <br/>
 Please note that any violation of these guidelines may result in disqualification from the hiring process.
 <br/>
 <br/>
 Requisition ID: 451965 | Work Area: Software-Design and Development | Expected Travel: 0 - 10% | Career Status: Professional | Employment Type: Regular Full Time | Additional Locations:
 <br/>
 <br/>
</div>


Developer (f/m/d) for BTP Metering and Reporting

SumUp

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<br><br>
<b>.css-10dm8y{font-size:</b> inherit!important;margin-bottom: 16px;} SumUp builds simple, affordable financial tools that help over 4 million small businesses across 37 markets get paid, manage their money, and grow. Beyond card payments, we offer a full suite of financial products - business banking, lending, invoicing, and money transfers - giving merchants everything they need in one place.
<br><br>
Our Transfers Excellence squad sits within SumUp's Global Bank, and owns the core services that power how merchants and consumers move money. E.g. IBAN-based transfers, money in and out, and peer-to-peer payments via the SumUp consumer app. With the high volume transfers per hour across our European markets. That means reliability isn't a nice-to-have - it's the baseline for us. Right now, the team is replacing a set of market-specific implementations with a single, unified global transfer platform that will serve Europe, the UK, Brazil, Chile, and eventually the US and Canada.
<br><br>
Join our team and contribute directly to platform-level architecture that will shape how SumUp moves money at scale - work that directly impacts millions of small businesses every day.
<br><br>
Our tech stack includes Kotlin, Java, Go, a bit of Elixir, 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.
<br><br>
<b>Get a feel for life in our .css-k1irjw{display:</b> inline;} Berlin office.
<br><br>
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<br>What you'll do
<br><b>.css-6fljt4{margin-bottom:</b> var(-cui-spacings-mega);}.css-6fljt4 li: last-child,.css-6fljt4 ul: last-child,.css-6fljt4 ol: last-child{margin-bottom: var(-cui-spacings-byte);}
<br><br>
Build and maintain backend services that sit at the heart of SumUp's transfer infrastructure, taking end-to-end ownership from development through to observability, testing and production support
<br><br>
Contribute to the migration from market-specific services toward a unified global transfer platform, working across a mix of active services and legacy systems being decomposed
<br><br>
Raise well-scoped pull requests, conduct thorough code reviews, and help maintain high standards of code quality and test coverage across the team
<br><br>
Participate in incident reviews and the on-call rotation, taking accountability for the reliability of the services you build
<br><br>
Contribute to the technical roadmap by participating in architectural discussions and proposing solutions for complex, distributed systems challenges
<br><br>
Apply AI tooling to accelerate your own engineering workflows and contribute to raising the team's overall AI literacy
<br><br>
You'll be great for this role if…
<br><br>
Solid experience as a Backend Software Engineer in modern languages (e.g. Kotlin, Go, Java, etc.). Kotlin is the team's primary language and we also work with Java, Golang, and Elixir.
<br><br>
Solid understanding of distributed systems and event-driven architecture. Experience with async processing and messaging tools like Kafka (or similar).
<br><br>
Experience working with microservice architectures, including Spring Boot and event-driven patterns, alongside solid knowledge of relational databases and API design
<br><br>
Comfortable working in high-throughput, regulated environments where reliability matters. Defensive coding and attention to edge cases are part of the job
<br><br>
Clear communicator in written and spoken English, with a collaborative approach to working across global teams
<br><br>
Curious about the product impact, not just the code. Comfortable thinking about how backend decisions affect the end user experience.
<br><br>
Why you should join SumUp
<br><br>
Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup
<br><br>
<b>Commitment to Diversity and Inclusion:</b> be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced
<br><br>
<b>Enrolment onto our Virtual Stock Option programme:</b> you will own a stake in SumUp's future success
<br><br>
A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
<br><br>
A corporate pension scheme where we match up to 20% of your contributions
<br><br>
<b>Generous time off:</b> enjoy 28 days of paid leave plus public holidays and special leave days
<br><br>
Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
<br><br>
<b>Break4me:</b> 1-month sabbatical after 3 years of service
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<b>Referral Bonus:</b> earn additional rewards by referring talented individuals to join the SumUp team
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About SumUp
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Be empowered to do more that matters.
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At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships.
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Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.
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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. Discover more about our culture and opportunities on our careers website, , Instagram, and TikTok.
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Job Application Tip
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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.

Senior Backend Engineer - Money Transfers

develop

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   Software Engineer | Java, AWS | Berlin | &euro;70k - &euro;85k | German B2+
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  We're looking for a talented Software Engineer with a strong background in Java and AWS to join a fast growing team in Berlin.
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  In this role, you'll develop and maintain scalable backend applications, contribute to the design of new features, and work closely with product managers, QA, and fellow engineers to deliver high-quality software. We're looking for someone who enjoys solving technical challenges, writing clean, maintainable code, and collaborating in an agile environment.
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   Responsibilities:
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   Design, develop, and maintain high-quality Java applications and backend services
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   Build and enhance RESTful APIs and integrate with internal and external systems
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   Collaborate with cross-functional teams to deliver new features from concept through to production
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   Write clean, maintainable, and well-tested code following engineering best practices
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   Participate in code reviews and contribute to technical discussions and architectural decisions
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   Troubleshoot, debug, and optimise applications to ensure performance and reliability
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   Support continuous improvement of development processes and engineering standards
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   Requirements:
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   Strong commercial experience developing applications with Java
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   Experience building RESTful APIs and backend services
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   Strong cloud experience with AWS
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   Familiarity with relational databases and modern software development practices
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   Experience working in Agile/Scrum teams
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   German language skills at B2 level or above (required)
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   Strong communication skills and a collaborative mindset
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  If you're interested please get in touch ASAP!
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Senior Software Engineer

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