Java Developer — United States

Job Title: C and Java Developer

Location: Bellevue, Washington / Remote

Employment Type: Full Time

Company: Q1 Technologies, Inc.

About The Company

Q1 Technologies, Inc. is seeking a skilled C and Java Developer to contribute to the development and operation of engaging Minecraft experiences. This role supports Java and Bedrock Edition development, server infrastructure, and cross-platform gameplay. The successful candidate will bring a strong foundation in software engineering and game development, along with the ability to build reliable, high-performance features for active player communities.

About The Role

As a C and Java Developer, you will design, develop, optimize, and maintain custom Minecraft server features and supporting systems. You will work across Java Edition and Bedrock Edition, creating plugins, add-ons, and integrations that provide consistent gameplay across PC, console, and mobile platforms. The position also involves data architecture, deployment, performance tuning, and collaboration with other developers. Candidates should have at least five years of active professional or high-level production experience with relevant technologies and be comfortable taking ownership of complex technical work.

Qualifications

Required qualifications include advanced Java skills and a thorough understanding of object-oriented programming, concurrency, and asynchronous development. Candidates must have experience with C and JavaScript or TypeScript, including familiarity with the Minecraft Bedrock Scripting API. Knowledge of XML technologies—including XML, XSL, FO, JAXP, and JAXB—is also required. Applicants should have hands-on experience with Spigot, Paper, or Purpur APIs, and understand Minecraft server internals, including NMS obfuscation and packet-level development. Experience with ProtocolLib or similar packet manipulation tools is valuable. Familiarity with MySQL, PostgreSQL, or Redis; Docker; Pterodactyl; and AWS or GCP is expected. Experience building CI/CD workflows with Gradle or Maven is important. A public GitHub portfolio, published server network, or marketplace work demonstrating relevant capabilities is strongly preferred.

Responsibilities

Design, implement, test, and maintain high-performance plugins for Minecraft Java Edition using Spigot, Paper, and Purpur APIs. Architect network features and integrations using packet-level techniques and libraries such as ProtocolLib. Diagnose and resolve performance issues, optimizing server throughput, memory use, and garbage collection for environments with high player counts. Develop Bedrock Edition add-ons, behavior packs, and resource packs using the Bedrock Scripting API. Apply C and Bedrock Dedicated Server API knowledge, or work with proxy solutions such as Geyser and Floodgate, to support cross-play. Help ensure consistent functionality and user experience across console, mobile, and PC clients. Build and maintain reliable player-data pipelines using relational databases or Redis. Deploy, monitor, and troubleshoot server infrastructure using containerization, management platforms, and cloud hosting. Participate in technical planning, document implementation decisions, mentor junior developers, and establish consistent code-review standards through Git and GitHub.

Benefits

This is a full-time opportunity with a remote work option and a listed location in Bellevue, Washington. The role offers the chance to contribute to production game development across Minecraft Java and Bedrock environments, work on technically challenging systems, and help shape scalable multiplayer experiences. Specific compensation, benefits, and remote-work arrangements will be discussed during the hiring process.

Equal Opportunity

Q1 Technologies, Inc. is committed to fair and respectful hiring. Applicants will be considered based on their qualifications, experience, and ability to perform the role’s responsibilities. We welcome candidates with varied backgrounds and perspectives and strive to maintain a professional, inclusive environment free from discrimination in accordance with applicable laws.