{"id":2922912,"url":"https://alion.io/job/xrex-senior-java-backend-developer","title":"Senior Java Backend Developer","company":{"id":2324287,"name":"XREX","domain":"xrex.io","url":"https://alion.io/company/xrex-io","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Breezy","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Taipei, Taiwan"],"countries":["TW"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":16500,"max_usd":49000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":7270},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"DynamoDB","optional":false},{"name":"Git","optional":false},{"name":"Gitflow","optional":false},{"name":"Java","optional":false},{"name":"MySQL","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"AWS","optional":true},{"name":"CI/CD","optional":true},{"name":"Flyway","optional":true},{"name":"Go","optional":true},{"name":"Google Maps","optional":true},{"name":"Liquibase","optional":true},{"name":"Python","optional":true},{"name":"Swagger","optional":true}],"status":"live","first_seen_at":"2026-10-20T09:04:39Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-25T02:34:10Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"About\nWant to build a worldwide brand from Taiwan, and to communicate our brand story to millions of users worldwide?\nWant to be based in Taiwan but work in a silicon-valley-like environment, and to build world-class brand and products?\nWant to participate in the global fintech and blockchain movement, and work at an English-speaking workplace?\nCome change the world with us! Join this fast-growing startup founded by software veterans and funded by top VCs, Skype co-founders, and the Taiwanese government (NDF)!\nWe’re hiring for an experienced Senior Java Backend Developer. The exact mix of other skills does not matter, so long as your tool chest includes a mix of abilities.Be willing to attack anything that comes your way, learn on the fly and get things done.\nCome talk to us if you want to push your skillset in a dynamic fast-paced environment.\nResponsibilities\nDevelop and build robust, scalable, clean and understandable server code\nDesign and implement RESTful APIs that is simple, intuitive, easy to test and fit to business requirements\nTroubleshoot, debug and optimize server code\nDesign and maintain well-structured, scalable and efficient database schemas\nWrite API documentation for API users, server documentation for Ops users\nParticipate and collaborate with functional teams\nTake ownership and responsibility for our backend development activities\nReport to Backend Team Leader\nRequirements\n\n6+ years experience in backend code developing role\nStrong Java, Spring / Spring Boot development experience\nStrong technical development experience on effectively writing code, best practices code refactoring and GoF Design Patterns\nProven problem solving and analytical skills\nExcellent knowledge of RDBMS such as MySQL\nKnowledge of RESTful APIs is a must\nKnowledge of NoSQL such as Redis, MongoDB, DynamoDB\nExperience using Git / Git Flow to manage asynchronous collaboration across teams\nExperience in Agile development lifecycle methodology\nModerate English\nThe skills assist the company in resolving technical issues concerning customer's accounts or company software infrastructure\nA Technical Support Engineer will also support computer software integration by diagnosing and troubleshooting common problems\nGood to have\nExperience in AWS cloud computing services\nExperience in Python, Go and micro-services development\nExperience with API documentation tools such as Swagger\nKnowledge with database versioning tools such as Flyway, LiquiBase\nKnowledge with CI/CD deployment flow\nExperience in building large, scalable distributed systems with good understanding of microservices architecture and associated principles\nKnowledge of managing data consistency in distributed systems\nExperience working with asynchronous systems\nLocation: Taipei (check us out on Google Maps!)\nAbout XREX\nRegarding our culture","description_format":"text","description_chars":2831,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Taiwan","iso":"TW","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Payment Processing & Gateways","Crypto Exchanges"],"lifecycle":[{"event":"open","at":"2026-10-20T12:40:34Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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