.NET, Java, REST, Xml, Node.js, Json, Python, AWS, NoSQL databases, Relational Databases

Oracle Sql, Java, Python, Data Structures, Javascript, Any SQL Database

Amazon Aws, Rabbitmq, Puppet, Logging, Heroku, Shell, Ansible, Hadoop, Kafka, Python, Perl, routing, Firewalls, PostgreSQL, MongoDB, Google Cloud Platform, Capacity Planning, Fabric, graphing, FOSS tools for monitoring

Jvm, Data structures, Kafka, Redis, Postgresql, Elasticsearch, MongoDB, Posix compliant Operating Systems, time complexity of algorithms, server-side software development, benchmarking systems, CLI tools, Regression tests, CS fundamentals

PostgreSQL, Kafka, Node.js, Git, React, Typescript, Docker, Restful Apis, Jest, Kubernetes, OpenAPI 3.0, Playwright, Cypress

Elasticsearch, Nodejs, Java, Reactjs, Kafka, Python, Algorithms, Database Concepts, Javascript, data structures, OpenSearch, event-driven architecture, observability