At SumUp, we believe small merchants are the heartbeat of our communities. By joining the Payments BR Tribe, you'll help shape solutions that directly solve merchants' everyday challenges and redefine how financial products empower entrepreneurship in Brazil. The tribe is deeply focused on the Brazilian market — understanding the real needs and behaviours of our merchants and building products that truly fit their world. You'll be part of a global, autonomous, cross-functional team of driven, purpose-led people who take ownership, embrace challenges, and care deeply about helping businesses succeed.
As a (Senior) Backend Engineer, you'll be the technical anchor of a small, high-impact squad — bringing clarity to complex integration logic, setting the architectural direction, and helping a growing engineer reach their potential. This is a role for someone who finds satisfaction in making hard systems reliable, loves writing clean Go code, and isn't afraid to navigate the complexity that comes with building at scale in a fast-growing market.
- Own the architecture: Design and author RFCs that shape how the domain evolves, driving clean, scalable solutions across our integration layer with internal SumUp services and third-party services as well.
- Write and review high-quality code: Take full ownership of backend delivery — from writing production-grade code to leading rigorous peer reviews that keep the codebase healthy and maintainable
- Drive technical standards: Establish clear documentation, testing practices, and CI/CD improvements that reduce technical debt and make the squad more autonomous over time
- Mentor and grow the team: Pair-program with and actively develop other engineers on the squad, acting as the technical reference point and fostering a culture of ownership and engineering excellence
- Collaborate broadly: Partner closely with the Engineering Manager, Product Manager, and cross-functional stakeholders to translate business needs into clear technical roadmaps and scalable solutions
- Solid backend development skills, with experience in Go, or strong experience in functional backend programming languages with a genuine drive to master Go quickly
- Strong expertise in code design, automated testing, CI/CD, performance optimisation, and building resilient, well-architected systems
- A track record of leading technical projects end to end — from writing design documents to shipping production improvements that hold up at scale
- Hands-on experience with AWS Cloud services and strong SQL optimisation skills with relational databases
- Have advanced English proficiency, with the ability to present and discuss technical topics clearly across teams and with non-technical stakeholders
- Experience contributing to technical strategy beyond the immediate squad
Why you should join SumUp
🌍 Global Experience: Collaborate with a diverse team of 3,000+ people from over 90 countries, and join our global off-sites and hackathons.
🤝 Collaborative Culture: Join a team that values diversity, innovation, and teamwork, where your ideas and contributions truly matter.
📈 Career Growth: Be part of a global team working on large-scale fintech products used by millions of businesses.
💙 Great Benefits: Health plans, meal vouchers (VR), Zenklub, Wellhub, life insurance, childcare allowance, and more.
📚 Learning & Development: Access an annual budget of R$ 10,000 for education, certifications, and conferences.
🌴 Time Off: Enjoy 30 additional days off through our Break4Me program after 3 years at SumUp.
💸 Grow with Us: Participate in our virtual stock program and benefit from SumUp’s success with company shares.
Learn More About SumUp
🇧🇷 Office tour at São Paulo
💡 Ask me anything: Engineering at SumUp
🚀 SumUp’s Innovation Hackathon
🤝 Get to know our hiring process
Ready to Join us?
Apply now and help us shape the future of financial solutions for small businesses
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
- Experience in Go or strong experience in functional backend languages with a willingness to master Go quickly
- Expertise in code design, automated testing, CI/CD, performance optimisation, and building resilient systems
- Proven track record of leading technical projects end to end, including writing design documents and shipping production improvements
- Hands-on experience with AWS Cloud services
- Strong SQL optimisation skills with relational databases
- Advanced English proficiency for presenting and discussing technical topics across teams
- Experience contributing to technical strategy beyond the immediate squad
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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