Sorin Ivan

• Serve as a technical expert, driving organization-wide infrastructure decisions and initiatives.
• Collaborate with Principal and Lead Engineers to design scalable, secure infrastructure architecture using AWS, Terraform, and cloud technologies.
• lead strategic infrastructure projects, supervise cross-functional teams, and evolve from a centralized SRE model to an enablement model.
• Define and optimize network architectures (VPCs, DNS, load balancing, routing) across multi-cloud environments.
• Implement and enforce access management, RBAC, and security best practices, focusing on DevSecOps and AWS services.
• Lead initiatives for Infrastructure as Code (IaC), automation, and CI/CD pipelines, ensuring consistency across products.
• Mentor DevOps teams, oversee incident response, and optimize infrastructure for reliability and performance.
• Extensive hands-on experience with AWS, Prometheus, ELK, Grafana, Influx, OpenVAS, Nessus, and New Relic for monitoring and security.

• Designed and developed a comprehensive managed services platform for multi-cloud environments, utilizing a microservices architecture to ensure scalability and flexibility.
• Architected integration and data exchange frameworks to seamlessly connect various cloud services and components.
• Development of platform processes and data flows to optimize automation, data management, and system performance.
• Development of key platform features, including: Agent/Endpoint for distributed service management
  Data Collectors for real-time data aggregation
  Job Scheduler for task automation and orchestration
  Command/Script Executor for remote execution and management
  Configuration Service (YAML/JSON-based) for dynamic service configurations
  Notification Service (Slack, Teams, AWS SNS) for real-time alerts and updates
  Data Store Service for scalable data storage and retrieval
  Data Processing Service for efficient data manipulation and transformation
  Real-Time Network Analyzer for network performance monitoring
• Built and maintained a robust CI/CD pipeline using GitHub, Jenkins, Terraform, Ansible, Node-RED, Docker, and Kubernetes, streamlining deployment and integration processes.
• Implemented advanced monitoring and troubleshooting with pprof, ensuring optimal code performance and reliability across the platform.
• Built databases and table structures for web applications

Develop Linux on s390 test automation framework with Ansible and Terrafirm z/OS custom tools:

- Participate in new IBM Mainframe (z16) certification process for Linux on Z

- Develop CI/CD pipleline for Linux on Z test areas (OS, KVM, Docker, OpenShift, Kubernetes)

- System provisioning (LPAR and z/VM) automation

- Create and maintain batch processing applications using JCL and REXX

- Configure and test online transaction processing systems using CICS and IMS/TM
- Develop wrapper scripts for z/OS existing tools in Goang and Shell Scripting
- Develop UI and REST API for test execution automation
- Perform test execution flow for stress-ng and LTP suite
- Perform data collection flow
- Implement test execution orchestration

- Work with Red Hat and SuSe Linux development team on Linux Kernel (s390) bugs

- Coordinated with other engineers to evaluate and improve software and hardware interfaces

IT Infrastructure and Strategy Lead

• Designed and developed the technical strategy for company IT services.
• Implemented industry standards and frameworks including Agile/Scrum, ITIL/ITSM, and TOGAF.
• Established and managed relationships with third-party providers and partners.
• Led the implementation of company global network (Site-to-Site link and routing between VMware vCloud Director, AWS, OCI and GCP)
• Implemented monitoring and event management solutions (Prometheus, Grafana, Netdata, Splunk).
• Defined the company's technology stack and developed a technical roadmap for IT services.
• Led the implementation of service management and security standards (ISO/IEC 27001, GDPR).
• Reviewed and approved financial plans for IT services.
• Conducted product demonstrations, webinars, workshops, and training sessions.
• Managed customer onboarding, support, and developed customer case studies for product success stories.

• Conducted comprehensive assessments of IT infrastructure and business processes to define SAP S/4 HANA requirements.
• Evaluated and selected cloud providers IaaS (AWS, GCP, OCI, Azure) , and SaaS services for optimal SAP landscape deployment.
• Architected a scalable, secure multi-cloud environment with integrated cloud platforms and on-premises systems.
• Planned and executed phased migration with risk mitigation, testing, and validation.
• Ensured seamless integration and real-time data exchange across platforms.
• Managed performance optimisation, cost efficiency, security, and compliance within the multi-cloud setup.
• Delivered training and ongoing support for IT staff and end-users, ensuring effective multi-cloud management and usage.
• Evaluated and recommended improvements to existing cloud infrastructures, resulting in enhanced performance and reduced operational costs for clients
• Collaborated with cross-functional teams to achieve project goals within deadlines, ensuring smooth project execution
• Promoted adoption of new technologies within the organization through engaging presentations showcasing potential benefits of implementation in various projects
• Standardized process documentation to ensure consistency across projects, leading to improved overall work quality

• Installed and configured SAP, Oracle, and IBM systems, including WebSphere, WebLogic, and SAP Netweaver.
• Managed database infrastructure setup (IBM DB2, Oracle DB, MSSQL) and system parameter configuration.
• Monitored system performance and tuned IBM, SAP, and Oracle environments using IBM ITM.
• Provided system administration, including user management, system checks, and log maintenance.
• Planned and executed backups, disaster recovery, and system upgrades using IBM TSM.
• Implemented security policies, monitored vulnerabilities, and ensured compliance.
• Handled system integration, managing connections and troubleshooting middleware components like IBM MQ and Oracle ESB.
• Delivered technical support, collaborated with teams, and maintained a knowledge base of issue resolutions.
• Participated in project management, coordinating with stakeholders and ensuring project milestones.

• Planned, designed, and delivered an IoT platform using IBM products including IBM TDS, DB2, WebSphere MQ/MQTT, WebSphere Process Server, WebSphere Portal, WebSphere Commerce, Maximo Asset Management, Message Broker, and Tivoli Monitoring.
• Conducted requirements analysis, aligning infrastructure with IoT needs and business goals.
• Designed scalable, secure architecture for IoT systems, ensuring performance, reliability, and seamless integration across cloud and hybrid environments.
• Managed the implementation, deployment, and optimization of IoT infrastructure, troubleshooting and resolving performance issues.
• Enforced security policies, ensuring compliance with industry standards.
• Supported customer demos (Australian Open 2012) and participated in workshops (Technicolor, Montpelier 2012).

• Provided expert-level support for Oracle Fusion Middleware - Identity Manager, handling critical customer service requests as part of Oracle EMEA Support Services.
• Built and maintained the full Oracle Fusion Middleware stack, including the Oracle SOA Suite and Oracle Identity Manager environments.
• Delivered specialized support for custom integrations of Oracle Identity Manager with third-party applications such as RACF, Lotus Domino, and DB2.
• Ensured high availability, stability, and performance of the middleware environments, supporting large-scale enterprise operations.
• Acted as a key technical resource for resolving complex integration and infrastructure issues.

• Supported and maintained Tivoli Monitoring infrastructure, adhering to ITIL/ITSM best practices for optimal service delivery.
• Deployed, configured, and maintained Tivoli Monitoring for diverse environments, including:Application Servers: WebSphere, WebLogic
  Databases: DB2, Oracle DB, Sybase, MSSQL
  Messaging Servers: IBM MQ, BEA AquaLogic Service Bus
  ERP and CRM Systems: Siebel CRM, JD Edwards EnterpriseOne, mySAP
  Web Servers: IHS, OWS, HTTPD
  
• Implemented monitoring updates across customer systems, ensuring seamless operation and real-time monitoring.
• Provided cross-team support for monitoring implementations and contributed to service improvement plans.
• Played a key role in architectural changes and optimization across diverse environments.
• Developed custom scripts to automate system administration and monitoring tasks, enhancing overall efficiency and system performance.

• Designed and managed the entire ISP network, ensuring high availability, scalability, and seamless performance for customers.
• Engineered a customer service management system, streamlining operations and enhancing user support.
• Developed and implemented a robust Quality of Service (QoS) using iptables, dhcp and Perl/CGI system for dynamic bandwidth management, optimizing customer experience and network performance.
• Established and enforced comprehensive security policies and measures, safeguarding network integrity and protecting against threats.
• Implemented advanced monitoring and event management systems for network gateways, ensuring real-time detection and resolution of issues.
• Administered and maintained network gateways, ensuring their reliability and optimal performance.
• Provided expert support and guidance to the team on network-related issues, fostering collaboration and swift problem resolution.