📍 Florianópolis, Brazil
At SumUp, we believe small merchants are the heartbeat of our communities. By joining the Global Bank tribe, you'll help shape the card infrastructure that directly powers how millions of merchants access, manage, and grow their finances in Brazil and beyond.
As a Senior Backend Engineer, you will play a central role in evolving our card domain — from credit card launches and digital wallet integrations to regulatory compliance and cross-market scalability. This is a role for engineers who want their work to matter and who thrive at the intersection of technical excellence and real-world impact.
What you'll do- Shape the card domain globally: Take ownership of complex backend features across the card lifecycle, delivering production-ready code that scales across Brazil, Chile, and Europe.
- Boost reliability: Introduce and improve monitoring, alerting, and runbook practices, actively support incident handling, and contribute to incident reviews with follow-up improvements that stick.
- Drive technical growth: Define reusable architecture patterns, lead service refactoring, and reduce technical debt across 12+ service orchestrations in the Latam card domain.
- Lead & mentor: Act as a technical reference for junior and mid-level engineers, facilitate design discussions, and author RFC sections that push the team's engineering standards forward.
- Collaborate broadly: Partner with Product Managers, Designers, and cross-functional squads to shape roadmaps, influence technical strategy, and deliver compliant, merchant-facing products.
- Ability to take complex, ambiguous product problems and define clear, scalable technical approaches.
- Strong expertise in unit and integration testing, with a focus on writing reliable, maintainable backend code in production environments.
- Proficiency in backend development, with experience in Java, Kotlin or a genuine drive to master it quickly.
- Hands-on experience with AWS Cloud services and relational databases.
- Able to collaborate effectively across teams and communicate complex ideas in a clear, adaptable way — including with non-technical stakeholders.
- Advanced written and spoken English proficiency.
📈 Career growth: Be part of a global team working on large-scale fintech products used by millions of businesses across 37 markets.
📚 Learning & development: Access an annual budget of R$ 10,000 for education, certifications, and conferences.
🌍 Global experience: Collaborate with a diverse team of 3,000+ people from over 90 countries, and join our global off-sites and hackathons.
🌴 Time off: Enjoy 30 additional days off through our Break4Me programme after 3 years at SumUp, plus 22 working days of paid leave and public holidays.
💸 Grow with us: Participate in our virtual stock option programme and benefit from SumUp's success with company shares.
💙 Great benefits: Health plans, meal vouchers (Pluxee), Zenklub for mental well-being, Wellhub gym membership, life insurance, childcare allowance, and private retirement contributions via Santander.
🔗 Referral bonus: Earn additional rewards by referring talented people to join the SumUp team.
Learn more about SumUp
🏙️ Office tour – São Paulo
🚀 SumUp's Innovation Hackathon
🤝 Get to know our hiring process
Be empowered to do more that matters.
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.
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.
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, and follow our journey on LinkedIn, Instagram, and TikTok.
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.
Skills Required
- Design and implement scalable backend features across the card lifecycle
- Strong expertise in unit and integration testing and writing maintainable production code
- Proficiency in backend development with experience in Java or Kotlin (or willingness to learn quickly)
- Hands-on experience with AWS Cloud services
- Experience with relational databases
- Experience mentoring and providing technical leadership to junior and mid-level engineers
- Effective cross-team collaboration and ability to communicate complex ideas to non-technical stakeholders
- Advanced written and spoken English proficiency
SumUp Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SumUp and has not been reviewed or approved by SumUp.
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Leave & Time Off Breadth — Paid time off is positioned as a standout, including 22 vacation days that increase with tenure, public holidays, a quarterly Wellness Day, special leave, and a fully paid one‑month sabbatical after three years. This combination makes time-off benefits feel notably robust in the overall rewards package.
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Healthcare Strength — Health coverage is described as comprehensive, with medical plan options (including carriers such as Cigna and Kaiser) plus dental and vision. Company-paid life insurance and disability coverage are also part of the protection package in the U.S. materials.
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Retirement Support — Retirement benefits include a published 401(k) match formula that provides an employer match up to a stated cap. The clarity of the match structure supports straightforward evaluation during offer comparisons.
SumUp Insights
What We Do
SumUp believes that every business should have access to affordable, easy-to-use financial solutions, no matter their size. That’s why more than 3 million businesses worldwide rely on SumUp to run their business. What started out as one card reader has now turned into a range of payment hardware, banking solutions, marketing, and loyalty tools, invoicing, and so much more. From sales and marketing to product and engineering, our cross-functional US team works together to ensure that small business owners can be successful doing what they love.
Why Work With Us
SumUp USA is part of the global SumUp organization that stretches across multiple continents from Berlin to Sao Paulo. Our teams are multicultural, have a collaborative mindset and bold goals. Join our mission if you want to become part of the success story and help empower over 3 million merchants using SumUp already!
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