Senior Java Software Engineer (Contractor)UK-Based | Fully RemoteOutside IR35Contract to Dec 2026We are supporting a global engineering and technology organisation in the search for a Senior Java Software Engineer (Contractor) to join their Performance Engineering & Research team.This is a fully remote opportunity (UK-based candidates only) working on robust, scalable software that supports sophisticated control algorithms and performance optimisation systems.The RoleYou will design, build and maintain efficient, high-performance Java applications, contributing across the full software development lifecycle including:Requirements analysis and system designDevelopment and implementationTesting and deploymentCI/CD and automation improvementsTechnical documentationWorking under the guidance of the Principal Performance Engineer, you will collaborate with solution design, integration, simulation and delivery teams globally.What We’re Looking ForMinimum 5 years’ professional Java development experienceStrong understanding of OOP, design patterns and software architecture principlesProven experience delivering scalable, maintainable systemsExperience with version control (Git) and CI/CD tools (e.g., Jenkins)Exposure to containerisation and logging technologies (e.g., Docker, ELK)Strong analytical and problem solving capabilityExcellent communication skillsNice to have: Experience within logistics, WMS or warehouse automation — however strong Java developers from any industry will be considered.Contract DetailsFully remote (UK-based candidates only)Outside IR35Contract funded through December 2026Full‑time engagementASAP startNo predefined rate band — quality is prioritisedATA is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation. #J-18808-Ljbffr