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Build and maintain secure SaaS authentication applications using Kotlin/Java, Spring Boot, and CI/CD, owning the full lifecycle from design to deployment.
Leads development of mission-critical big-data analytics systems for national security, designing scalable web apps and APIs to detect/analyze threats using Java/Kotlin, Spring Boot, Kafka, and AI tools.
Senior Full Stack Engineer builds and optimizes campaign tools, dashboards, and APIs for a mobile ad marketplace, using a polyglot stack and focusing on low-latency, high-throughput systems.
Builds and maintains a full-stack app in Python, Angular, Kotlin/Java and Postgres to track energy use and device inventory across 8,000 sites, improving cost efficiency and CO₂ reporting.
Build and maintain Android SDKs in Java/Kotlin and create bindings for React Native, JavaScript, and other platforms to power push-notification services for mobile apps.
Build and maintain the engineering foundation that lets teams spin up backend microservices in ~20 minutes, standardizing Kotlin/Java stacks, CI/CD, security, and DevOps tooling.
Design and build AI-driven backend services and REST APIs using Java, Spring, and Kotlin for client projects, with a focus on quality via code reviews and CI/CD.
Leads Java/Kotlin teams building AI-native software for European clients using Spring and related tools, mentoring engineers and driving agile delivery.
Develops full-stack applications using Python, Angular, and Kotlin/Java, focusing on backend/frontend integration, system architecture, and component upgrades in an agile environment.
Builds new features and modernizes legacy systems using Python, Angular, Kotlin/Java, and Postgres while documenting and managing technical sites.
Builds a mapping tool for 8,000 telecom offices to optimize energy and space use; writes Python/Angular/Kotlin/Java against Postgres and integrates with partner systems.
Build and maintain high-load microservices in Kotlin/Java using Spring Boot, Kafka, and AWS, ensuring scalability, performance, and security for a multi-mobility app.
Build and maintain Android apps using Kotlin, Jetpack Compose, and modern architectures like MVVM/Clean, collaborating with product and backend teams to deliver high-quality mobile solutions.
Senior Backend Engineer at SumUp leads global card infrastructure development, focusing on credit card launches, digital wallet integrations, and regulatory compliance across Brazil, Chile, and Europe. The role involves designing scalable backend systems, improving reliability, mentoring engineers, and collaborating with cross-functional teams to deliver compliant fintech solutions.
Senior Backend Engineer builds and maintains SumUp’s Brazilian money-transfer and card services, using Go/Kotlin microservices on AWS with Docker/K8s and Kafka.
Senior developer building and maintaining AI-native backend services for a major Brazilian digital bank, using Kotlin/Java, microservices, and AWS, with full SDLC responsibility from design to production support.
A DevOps Engineer for MS Dynamics 365 will design, extend, and deploy CRM solutions in cloud and on-premise environments, focusing on CI/CD pipelines and integrations with other systems to enhance sales processes at a Swiss public bank.
Build and evolve mission-critical tools for Waymo’s ride-hailing and fleet systems using full-stack development with Java/Kotlin, Python, Go, or C++ and JavaScript/TypeScript.
Builds and maintains Java-based real-estate tax systems with autonomy over architecture and tech stack, using TDD and pair programming on large, complex applications.
Builds a high-throughput, distributed advertising marketplace platform in Java/Kotlin/Spring Boot, designing scalable ledgers, API contracts, and cross-team integrations with AWS-native infrastructure while leveraging AI coding agents in production workflows.
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