• Redeveloped 10+ CICD pipelines into Jenkins+Bitbucker+Spinnaker• Instrumenting Continous Integration/Delivery processes in AWS (CodeBuild, CodePipeline)• Hardening of AWS environments to meet compliance standards (PCI-DSS, SOC2)• Advising on pricing strategies and capacity planning for the most cost-effective provisioning of iaas/saas/paas components• Infrastructure provisioning with CloudFormation, Terraform, or AWS CDK • Provisioning multi-account AWS landing zones with AWS Organizations/ Control Tower, including centralized access controls, networking, monitoring and logging.•

• conducting AWS Well-Architected Framework assessments• database migration from instances hosted on EC2 to AWS-managed RDS database services• modernization of existing network topology for multi-account AWS setup with a central Transit Gateway to reduce cost and simplify management.• created a multi-account AWS environment in line with AWS Control Tower best practices and security guardrail policies.• as an Infrastructure Automation Engineer I created Infrastructure as Code modules in Terraform to provision Machine Learning system components (Feature Store in AWS Keyspaces/Cassandra, AWS EMR clusters for batch processing of historical data, AWS Managed Streaming for Kafka)• Developed and deployed ML data pipelines in AWS Lambda (Python) to orchestrate data flows between different storages and processing engines of an ML system.• Instrumented log shipping and metric monitoring of system components (Kafka, EMR) to NewRelic and Prometheus.• performance tuning and autoscaling setup of system components to optimize provisioned capacity for the workload (AWS Elastic Map Reduce, AWS Keyspaces).

• Designing and implementing scalable, highly available and resilient systems on Public Cloud (AWS)• Implanting advanced security and compliance standards on AWS Cloud (AWS GuardDuty, AWS Config)• Planning and delivering migrations to the AWS cloud.• AWS Infrastructure provisioning with CloudFormation, AWS CDK, Serverless Framework, Terraform• Supporting customer environments with respect to enhancements in line with AWS Well-Architected Framework guidelines.

• Integrating Machine Learning systems across AWS accounts• Application Development (Web Services) in Kotlin and Java• Serverless applications development (AWS Lambda, Kinesis Data Streams, SNS, SQS, Python)• Building data integration solutions• Containerization of Machine Learning applications

• Design and implementation of text search system with Elasticsearch• Designing and implementing data integration solutions for Amazon AWS Cloud (Amazon Redshift data warehouse, Oracle OLTP database, Kinesis Firehose data delivery streams, SQS, SNS, Cloud Watch)• Data warehouse modelling and implementation, Amazon Redshift • Building streaming ETL pipelines with Apache Kafka• Data visualizations with Looker Business Intelligence software• Implementation of data cleansing and enrichment services• Building and securing Amazon AWS cloud environments (serverless processing with Lambda, load balancing, Virtual Private Cloud setup, data storage lifecycle implementation)• Cloud Infrastructure Administration (RDS, EC2, VPC, Route53, Kinesis, SQS, SNS, Redshift, S3, CloudWatch)

• Proactive and reactive database support for tens of customer database estates including database recovery, performance and availability troubleshooting, configuration and database deployment planning.• Setup and administration of application environments composed of WebLogic and Oracle SOA Clusters, Oracle Database 11g with DataGuard and Oracle Cloud Control 12c.• Deployment Automation scripting with Ansible.

- design and implementation of ETL processes, reporting data marts for SEPA payments engine- data engineering for Personalized Offers customer analytics- building data flows and integration services for Customer Analytics warehouse- data modelling with "Data Vault" methodology- database client application development with APEX- Pl/SQL development

- Design and implementation of data ETL pipelines for use with Customer Insights Business Intelligence- Design and implementation of BI dashboards with Jaspersoft software- Working with software architects on application design for optimalperformance- Oracle 11g production database administration (RAC cluster, Data Guard, ASM).- Database performance tuning- Ms SQL Server 2008 setup and administration- Technical evaluation of solutions and guidance for development and production support teams

- Data migrations (Oracle 10g / 11g, IBM DB2, Microsoft SQL Server) - Development of maintenance jobs - Data model design and implementation - Database performance management

- development of tools for automated data acquisition from heterogeneous sources - data quality management - data modelling and database application development - PostgreSQL performance tuning and administration

- Data analysis: application development for market data statistical analysis - Web forms & reports development (PHP, Pg/PL SQL) - PostgreSQL server administration