Senior Platform Engineer (Java/Kotlin)

Our Client is one of the most recognizable e-commerce companies in Poland, developing an advanced technology platform in the Azure cloud and operating at a very large traffic scale.The project focuses on building and evolving a platform that supports key products, including payment and insurance services. We are looking for an experienced Senior Platform Engineer (Java/Kotlin) who will design and develop tools for development teams, combining strong Java/Kotlin expertise with Kubernetes and Azure. 📍 WORK MODE Warsaw – hybrid model (flexible) 🧑‍💻 RESPONSIBILITIES • Developing and maintaining tools and libraries for the Java/Kotlin ecosystem, supporting product teams in their day-to-day work • Optimizing and supporting workloads running on Kubernetes, including integration and configuration of Istio, ArgoCD, and Helm • Designing and implementing high-availability (HA) solutions in multi-region environments • Conducting technology research, building PoCs, and preparing analyses and recommendations • Providing expert support to engineering teams through automation, integrations, and tools that simplify platform usage 🔍 REQUIREMENTS • Very good knowledge of Java (willingness to also work with Kotlin is a plus) • Experience in Platform Engineering, DevOps, or Cloud Engineering • Hands-on experience with Kubernetes and the GitOps ecosystem (Istio, ArgoCD, Helm) • Knowledge of cloud services – Microsoft Azure preferred • Proficiency with containerization tools (Docker) 🤝 WHY JOIN? • Stable, long-term cooperation under a B2B contract • Technologically advanced, large-scale project with real opportunities for PoCs, research, and architectural impact • Work within an experienced engineering team • Friendly, partnership-based work culture focused on knowledge sharing, code reviews, and quality Thank you for all applications. We will contact selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ No. 33580)