DevOps / Site Reliability Engineer

About Us T-Digital is the Deutsche Telekom Tech powerhouse in Greece. We create compelling digital propositions for the worlds’ largest Telekom giant by building scalable and agile platforms to provide the best of digital experience to Deutsche Telekom customers across Europe. We are agile and international organization where creativity and freedom are valued the most. We are looking for those who can embrace our culture, think outside the box and turn ideas into high quality products and services. About Our Culture We strive to build and strengthen a strong culture of caring and performance, building a workplace we are proud of. We attract good fellas, create life-changing experiences and believe in work-life balance. What we absolutely need from you is: Innovation focusCustomer ObsessionGrowth Mindset Our Guiding Principles Delight our CustomersGet things DoneRespect & IntegrityOne TeamOwnership (I am T – Count on Me)Curiosity & Growth About You We are looking for someone who combines deep technical expertise with strong teamwork and communication skills. What You Will Need Must Have 5+ years of DevOps/SRE experience within production-grade, distributed environments. 3+ years of strong Kubernetes expertise operating and supporting production clusters (scaling, advanced networking, RBAC, and troubleshooting). 3+ years of experience in cloud-native environments, designing and operating infrastructure in at least one major cloud provider (Azure preferred, AWS or GCP also considered). Expertise in designing and maintaining CI/CD pipelines (GitLab) and developing reusable CI/CD blueprints to standardize deployments across teams, following a GitOps approach (ArgoCD or similar). Advanced Helm proficiency, including custom Helm templating, chart development, and lifecycle management for complex microservices. Container and Kubernetes Security expertise, moving security left by integrating container image scanning tools (Trivy), enforcing image signature verification, and implementing admission control policies (e.g., Connaisseur). Solid understanding of cloud networking concepts, including DNS, VNETs/Peerings, subnets, load balancing, ingress controllers, and service networking. Experience implementing and operating observability platforms (metrics, logging, tracing) using tools such as Grafana and Prometheus. Strong knowledge of Infrastructure as Code management using Terraform. Strong scripting and automation skills (preferably Go, Python, Bash). Experience with service mesh and distributed tracing technologies (e.g., Istio service mesh, Jaeger tracing). Emerging experience in AI/MLOps infrastructure, deploying and managing AI/ML workloads and model serving platforms (e.g., KServe) Strong troubleshooting skills across infrastructure, networking, and application layers. Nice to have Emerging experience in AI/MLOps infrastructure, deploying and managing AI/ML workloads and model serving platforms (e.g., KServe) Understanding of database performance, backups, replication, and high availability concepts. About What We Can Offer Flexible & remote workVery competitive annual bonus schemeMeal vouchersPrivate insuranceCool office spaces in Thessaloniki and AthensA new team that will support and challenge you on your path to growthExtra days offOpportunities to travel and work all around the world… and many more You know the job. We know what you need to do it well. Let’s talk!