Design and maintain reliable processing infrastructure, including: Documenting and managing infrastructure with Terraform and Terragrunt. Optimizing PostgreSQL database performance. Writing automation scripts in Python, including integration with Yandex Cloud APIs. Creating SQL queries of varying complexity. Setting up and maintaining GitLab CI pipelines. Working with Ansible for configuration management. Conducting load testing for applications and infrastructure. Configuring monitoring and alerting systems in Grafana (with data from Prometheus). Administering Linux servers and configuring Nginx web servers. Deploying Java applications. Integrating and managing Kafka and RabbitMQ message brokers.

Supporting B2C products. Setting up monitoring systems in Grafana, creating dashboards from scratch using MQL, and configuring alerting. Writing analytical SQL queries for a new system. Maintaining a system deployed in OpenShift (Kubernetes), including configuration, setting up ISTIO, and optimizing application performance. Deploying new distributions via Jenkins. Working with version control systems (Git) and Bitbucket repositories. Writing scripts in Bash and Python. Incident resolution and troubleshooting.

Deploying new versions of applications to test and production environments, supporting updates, performing non-functional and load testing, and administering services on Linux Ubuntu. Developing deployment pipelines, working with Ansible and GitLab CI, and defining infrastructure using Terraform/Terragrunt. Managing PostgreSQL databases and writing complex SQL queries. Solving tasks related to microservices architecture, Kafka, RabbitMQ, and cryptographic information security tools. Writing automation scripts in Python and Bash. Implementing monitoring coverage for infrastructure using Prometheus and Grafana.

Worked on the second line of Apple support; the role involved technical challenges and required communication in English.