- Continuous work on AWS EKS Kubernetes platform

- Designed and implemented an automated full cluster lifecycle and management platform for AWS EKS via Argo Workflows and Argo Events- Contributor to Argo project- Continuous work on AWS EKS Kubernetes platform (e.g. Istio Ingress integration)

- Technical advocate for Kubernetes, inc. workshops for Concur internals - Designed and implemented central logging collector for Kubernetes to existing ELK stack- Designed and implemented Couchbase cluster (automated bootstrap and failure recovery) on Kubernetes- Designed and implemented integration of Consul K/V to Kubernetes- CI/CD pipeline to Kubernetes/Tectonic- Docker Swarm - Proof of Concept inc. Consul Service Discovery- Scrum and Agile methodology within team located in different timezonesTechnologies and tools: docker, Kubernetes, CoreOS, Tectonic, AWS, Helm, Quay, Prometheus, Docker Swarm, Jenkins, Couchbase, NewRelic, groovy

- Design, deploy and maintain RabbitMQ clusters. Single point of contact for RabbitMQ @Concur- Implementation of Hashicorp Consul- Design and implement Hashicorp Vault, inc. performance tests- Puppetize current and new infrastructure- E2E monitoring of Puppet InfrastructureTechnologies and tools: Puppet, Hiera, Vagrant, r10k, git, Consul, Vault, JMeter, AppDynamics, Jira & Confluence

- Perform system maintenance, configuration maintenance, release management and day to day service request activities in Concur’s production environment.- Monitor and measure systems for performance, availability and reliability. - Deploy new technologies and improve existing systems. PowerShell scripting- Incident Management & Resolution- Troubleshoot Concur's clients performance issues (inc. callbacks)- Generate automation scripts to improve the analysis, issue resolution and prevention to reduce time and labor force to manage Concur services- Provide training, design and knowledge transfer sessionsTechnologies and tools: CentOS, Windows Server, VMware, Tomcat, JVM, ActiveBatch, F5 Big-IP, Akamai CDN, Splunk, ExtraHop, bash, powershell

- Technical, customer oriented support. All Novell SuSE Linux SW platforms on variety of HW setups, clusters, SAN, etc.- Remote Desktop sessions, callbacks or emails with external customers, analyse system design and failures and provide solution.

- 2nd line support and administration for both corporate and customer systems, supporting business-critical systems of network monitoring, management, network elements inventory, troubleshooting, backup (Alcatel, Ciena, Infinera, TACACS+, DNS, NTP, SNMP, CVS, postfix, exim)- Server SW, HW administration and installation (mostly Unix – Solaris, HP-UX, RedHat), health and performance monitoring, investigation and resolution. Bash scripting.- DNS administration on Unix (bind)- User and access management for all systems mentioned above.- Remote, On-site, 24x7 On-call support

Projects1. Mobile Number Portability (MNP)2. Mobile Virtual Network Operator (MVNO)3. Intelligent Networks (IN – SX part) systemResposibilities - On-site SW installations and troubleshooting- New software release testing- Problem analysis and solution testing (problem simulation)- Preparation and performing acceptance tests with customer- Anomaly report handling- Subscriber and Routing administration support, TAC2 level- Customer care for mobile operators (T-Mobile, Orange)- Remote, On-site, On-call support