Senior DevOps / Integration Engineer

Expected, Kubernetes, Helm, MQTT, Modbus, Profinet, Prometheus About the project, This role bridges the gap between modern cloud-native software delivery (IT) and industrial shop-floor systems (OT) within highly regulated life sciences environments. The position is responsible for deploying, integrating, validating, and maintaining highly available, secure, and GxP-compliant MQTT-based data pipelines running on Kubernetes, ensuring seamless data flow from physical plant floor assets to enterprise analytical systems. This is how we work, at the client's site Your responsibilities, Deploy, operate, and optimize highly available MQTT platforms on Kubernetes using Helm, Operators, and IaC., Configure Kubernetes networking, storage, and MQTT broker performance for reliable industrial workloads., Integrate SCADA, MES, Historians, PLCs, and industrial protocols (OPC UA, Modbus, Profinet, EtherNet/IP) with MQTT., Design secure IT/OT data flows following Purdue Model and ISA-95 principles., Support GxP-compliant infrastructure, including CSV, ALCOA+, and audit-ready GitOps deployments., Build and maintain secure CI/CD pipelines with GitHub and ArgoCD/Flux., Implement TLS/mTLS, certificate management, Kubernetes RBAC, and MQTT topic access controls., Monitor platform health with Prometheus, Grafana, and Loki, and configure proactive alerting., Troubleshoot incidents, perform root cause analysis, and support deviation and CAPA investigations., Collaborate with IT, OT, Engineering, and Quality teams to deliver secure, scalable, and compliant platform solutions. Hands-on experience with Kubernetes, including Helm, Operators, CRDs, and containerized workloads., Experience managing and optimizing MQTT brokers in high-availability environments., Knowledge of industrial OT systems and protocols, including OPC UA, Modbus, and Profinet., Understanding of GxP/CSV validation processes and ALCOA+ data integrity principles., Experience with DevOps and GitOps practices, including Infrastructure as Code (IaC), ArgoCD, or Flux., Knowledge of security best practices, including TLS/mTLS, Kubernetes RBAC, and MQTT topic access control., Experience with observability and monitoring tools such as Prometheus, Grafana, and Loki. SQUARE ONE RESOURCES sp. z o.o., At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations. This is how we work,