{"id":3947191,"url":"https://alion.io/job/mindworx-consulting-intermediate-java-developer-2","title":"Intermediate Java Developer","company":{"id":4496674,"name":"Mindworx Consulting","domain":null,"url":"https://alion.io/company/mindworx-consulting","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Johannesburg, South Africa"],"countries":["ZA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Docker","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"SQL","optional":false},{"name":"ActiveMQ","optional":true},{"name":"Agile","optional":true},{"name":"Apache Camel","optional":true},{"name":"Bash","optional":true},{"name":"Git","optional":true},{"name":"MS SQL","optional":true},{"name":"MySQL","optional":true},{"name":"Oracle","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Postman","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-10-30T12:01:03Z","employer_posted_date":null,"last_verified_at":"2026-10-30T12:01:03Z","board_verified":false,"closed_at":null,"days_open":9,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":9},"description":"Reference: REC000622-MNS-1\n\nWe are looking for an Intermediate Java Developer (4–6 years' experience) for a 12-month hybrid contract. You will build and maintain core Java services on a large-scale telecoms billing and operations platform while driving enterprise integrations and hands-on client UAT/FAT sessions.\nDuties & Responsibilities\nThe Tech Stack Deep-Dive\nMust-Haves:\n\nLanguages & Frameworks: Java (including J2EE, Spring)\n\nDatabases: Deep SQL & query optimization (MSSQL, Oracle, MySQL, or PostgreSQL)\n\nDevOps, OS & Cloud: Linux, Bash scripting, Docker, and Kubernetes\n\nMessaging & Tools: RabbitMQ or ActiveMQ, Git, Scrum/Agile, Postman\n\nNice-to-Haves:\n\nIntegrations & PL/SQL: Apache Camel, Oracle PL/SQL, and Oracle APEX\n\nDomain Knowledge: Telecoms BSS/OSS background\n\nWeb Basics: Basic HTML and CSS\n\nKey Responsibilities\n\nCore Engineering: Build and optimize high-throughput Java microservices on a mission-critical enterprise billing platform.\n\nPerformance Tuning: Write and refine complex SQL across diverse database engines to maintain peak system performance.\n\nContainerized Deployments: Manage containerized services on Linux using Docker and Kubernetes.\n\nDirect Facilitation: Integrate enterprise message queues and lead FAT/UAT sessions directly with customer teams.\n\nWhy Join Us?\n\nImpact at Scale: Work on a massive BSS modernization initiative delivered alongside an established international technology group.\n\nFlexible Hybrid Setup: Enjoy a balanced work model with 2 days a week in Centurion, with all equipment, tools, and licenses fully provided.\n\nCompetitive Compensation: Market-related rates aligned with your experience on a dedicated, highly professional contract 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