Building and managing AWS infrastructure in a greenfield project aimed at creating a robust, cloud-based analytics solution from the ground up. • Actively involved in architecture design and decision-making processes to ensure a scalable, secure infrastructure. • Leveraging a multi-account strategy to optimize resource organization, security, and governance. • Developing and provisioning infrastructure using Infrastructure as Code (IaC) with Terraform and Terragrunt for efficient, consistent deployment. • Automating deployment processes through GitLab CI/CD pipelines, enabling rapid, reliable releases across environments. • Contributing to the design and implementation of secure, scalable network architecture. • Implementing robust security measures, including IAM policies, data encryption, and VPC configuration, to ensure compliance and data protection. • Setting up comprehensive monitoring and alerting systems to maintain operational visibility and performance tracking. • Collaborating with cross-functional teams to evaluate and select the most suitable cloud solutions, aligning with project requirements. • Integrating on-premises management systems to enable seamless monitoring and control across environments. • Building a cost-monitoring solution to manage and optimize AWS expenditures effectively. • Providing operational support and guidance to application development teams, ensuring smooth deployment and troubleshooting as needed.

▪ Maintaining availability of Business Support Systems, main areas: ▫ Teradata data warehouse ▫ Amdocs billing system▪ Supervision of ETL processes and applications, handling any surfacing problems▪ Responsible for implementation and testing of new developments, services and features▪ Execution of preventive and corrective maintenance tasks▪ Execution of all operational tasks: configuration, administration, monitoring, reporting▪ Participating in on-call service (data warehouse and billing system)▪ Supporting of business support systems' users▪ Supporting of introduction, implementation, integration, maintenance, resource and performance control of new business support systems/business applications▪ Participating in projects ensuring service handover to operations ▫ requirements specification, documentation ▫ task scheduling, planning of processes and handover ▫ distributing tasks among team members▪ Performance monitoring - mainly with self-written codes (shell, SQL, PHP)▪ Short term planning of upgrades and capacity expansions▪ Vendor performance managing according to contracts▪ Activities coordination within group and with vendors▪ Operational documentation creation and maintenance▪ Responsible for continuous improvement of operated systems’ quality▪ Solving customer complaints and ad hoc requests▪ Giving trainings to new colleagues

- Operation of Teradata data warehouse applications- Maintenance of test and production environments- Supervision of data input and data-loading processes and applications, handling any surfacing problems- Responsible for implementation and testing of new developments, services and features- Staying in touch with business-level users, developers, colleagues from abroad and with operators of other systems- Managing problems with the billing system on an on-call basis- Capacity planning, resource management- Writing scripts that aid the operation of the system- Serving in projects as a technical advisor

- Operation of Teradata data warehouse applications- Maintenance of test and production environments- Supervision of data input and data-loading processes and applications, handling any surfacing problems- Responsible for implementation and testing of new developments, services and features- Staying in touch with business-level users, developers, colleagues from abroad and with operators of other systems- Managing problems with the billing system on an on-call basis- Capacity planning, resource management- Writing scripts that aid the operation of the system- Serving in projects as a technical advisor