solutions & services

Programming languages

• Java
• Go
• TypeScript
• JavaScript

DB

• PostgresSQL
• JOOQ
• Flyway

Operating systems

• FreeBSD
• GNU/Linux

Deployment & Automation

• Ansible
• Kubernetes
• OpenShift
• FreeBSD Jails

Web frameworks & frontend

• Apache Wicket
• Svelte
• React

Backend & libraries

• Spring Boot
• Apache Kafka
• RabbitMQ

Storage

• OpenZFS

Web servers & Load balancers & Cache

• Jetty
• NGINX
• HA Proxy
• Varnish

NoSQL & Fulltext search

• Elasticsearch
• OpenSearch
• Redis

Version control

• Git

WS & REST & Integrations

• Apache CXF
• OpenFeign

Build & CI & QA

• Gradle
• Apache Maven
• Jenkins
• SonarQube

Monitoring & Alerting

• Prometheus
• Grafana
• Zabbix
• Kibana

Security & Access control

• Apache Shiro
• OpenLDAP

Testing & Performance

• JUnit
• Gatling

Reporting & BI

• Jasper Reports
• Redash
• eCharts
• charts.js
• Highcharts