Duplexz

Hello everyone! I offer Java development services for L2-like projects. I have been working with Java since 2015-2016. During the last years I worked on contract Lineage 2 server development and related infrastructure. My main focus is server-side Java, L2JMobius-based forks, custom systems, packets, datapack/XML, SQL/JDBC, optimization and fixing unstable logic. Experience with: L2JMobius main/original branch; L2JMobius Essence branch; Lucera interlude; Custom L2-like packs where many things were already changed from the original codebase; What I can help with: custom systems for your pack; skills / effects / triggers / formulas; NPC / AI / scripts; shops / services / buffer / GM shop logic; items / enchant / rewards / missions; special hunting zones, instances, spawn/zone logic; custom packets and server-side integration with existing client UI changes; server-side integration for existing client-side edits/maps/geodata; SQL/JDBC, XML/datapack, XSD, configs; porting mechanics between branches/chronicles; bug fixing, cleanup, legacy refactoring; performance fixes: memory leaks, race conditions, broadcast/task-manager bottlenecks. other server-side game mechanics; Examples of larger systems I worked on: clan/economy systems: roles, permissions, auction, shop, warehouse, ranks, seasons, history; PvP/event-like systems: territory/conquest mechanics, rankings, rewards, schedules; hunt pass / season pass / progression systems; account panel / web API for a game project; launcher backend, token-login flow, updater tooling; parsers and analyzers for game/client data; internal testing tools for server-side validation. I can work with Git, separate branches, commits, pull/merge requests or patches, depending on your workflow. For tasks I usually provide a short note about what was changed and what should be tested. Format: hourly: 15-20 USD/hour, depending on the task; fixed price per task after checking the requirements/code; small task: from 15 USD; payment: USDT; no revenue share and no unpaid test tasks; a small paid task is usually the best way to check quality and communication first. Contact: Discord: @stroke_dan Telegram @castirom