Everything you need to know to get the job.

Google core libraries for Java

Free universal database tool and SQL client

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

Orchestrate everything - from scripts to data, infra, AI, and business - as code, with UI and AI Copilot. Simple. Fast. Scalable.

Zipkin is a distributed tracing system

The official home of the Presto distributed SQL query engine for big data

QuestDB is a high performance, open-source, time-series database

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

🏗 Build container images for your Java applications.

Apache Druid: a high performance real-time analytics database.

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

Open-Source Web UI for Apache Kafka Management

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance …

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

Apache Iceberg

Free and open log management

AutoMQ is a diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

Code for Quartz Scheduler

Upserts, Deletes And Incremental Processing on Big Data.

Apache Kafka® running on Kubernetes

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, R…

OpenGrok is a fast and usable source code search and cross reference engine, written in Java

A machine learning software for extracting information from scholarly documents

Open Location Code is a library to generate short codes, called "plus codes", that can be used as digital addresses where street addresses don't exist.

A blazingly fast multi-language serialization framework powered by JIT and zero-copy.

Generates a unified GraphQL schema from gRPC microservices and other Protobuf sources