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SumUp • São Paulo, São Paulo, Brazil
Role & seniority: Software Development Engineer in Test (SDET); mid- to senior-level role within SumUp’s Global Bank Team
Stack/tools: Kotlin, Go, Python, Java (or similar); internal tools/SDKs; Docker, Kubernetes, AWS; modern observability stacks; CI/CD
Build and operate performance monitoring, regression-detection platforms, data-generation systems, shadow-traffic and automated validation infra
Improve CI/CD reliability, speed, observability; develop internal SDKs/CLIs and automation frameworks; promote contract testing and integration-first patterns
Design and embed tooling to reduce deployment lead time, automate coverage from incidents, modernize automation architecture, and partner with squads to solve high-leverage problems
Strong software engineering experience in Kotlin/Go/Python/Java or similar; built internal tools or frameworks used by engineers
Deep understanding of microservices, event-driven systems, CI/CD; hands-on with Docker, Kubernetes, AWS; familiarity with observability stacks
Experience improving DevEx/CI/CD tooling at scale; performance/load testing and distributed tracing; designing integration/testing frameworks
Kafka, Pact, fintech domain experience, PostgreSQL, developer portals, or open-source tooling
Location & work type: Global, not region-specific; full-time role (remote/global team environment)
SumUp builds financial tools that help millions of small merchants run and grow their businesses. Within this mission, the Global Bank Team is responsible for creating the foundation of SumUp’s digital banking platform - used by merchants across multiple regions. As we scale, we're investing heavily in developer experience, automation, and productivity. About the Role We’re looking for a Software Development Engineer in Test who can supercharge how 200+ engineers build and ship banking features. You’ll create the tools, infrastructure, and platforms that eliminate friction, improve reliability, and raise the engineering bar across the tribe - directly shaping the pace and quality of SumUp’s global banking platform. If you want to prove that great tooling can be a competitive advantage, this is the place to do it.
Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University leadership cohort and a yearly learning budget (R$10.000/ year). Enrollment in our virtual stock ownership program - you will own a stake in SumUp’s future success Access to our Employee assistance program for mental health as well as Fitness and language learning benefits. You’ll attend global offsites and/or hackathons Sabbatical program for tenured SumUppers
Join a global team where you belong: Check out our D&I Initiatives and Employee Resource Groups such as Pride Club, SumAfro, Neurodiversity, Grupos Mais, Women in Tech, and more About SumUp We believe in the everyday hero. Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to 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. 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.