{"id":4188244,"url":"https://alion.io/job/scalian-senior-java-middleware-engineer-apache-servicemix-specialist","title":"Senior Java Middleware Engineer / Apache ServiceMix Specialist","company":{"id":181348,"name":"Scalian","domain":"scalian.com","url":"https://alion.io/company/scalian","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"A","score":87,"open_postings":346,"ghost_share":0,"stale_share":0.514,"repost_share":0,"time_to_fill_p50_days":38,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Casablanca, Morocco"],"countries":["MA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ActiveMQ","optional":false},{"name":"CI/CD","optional":false},{"name":"GitLab","optional":false},{"name":"GitLab CI","optional":false},{"name":"Grafana","optional":false},{"name":"Java","optional":false},{"name":"Jenkins","optional":false},{"name":"Linux","optional":false},{"name":"Maven","optional":false},{"name":"Prometheus","optional":false}],"status":"live","first_seen_at":"2026-11-12T12:31:55Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T18:50:14Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Scalian is amultinational engineering consulting firm with over 35 years of experience and nearly 5,500 specialists across 11 countries.\nWe provide expertise in Operations & Technology and Information Technology to a variety of industries, including aerospace, defense, railways, and energy, supporting their development.\nAt Scalian, people are at the heart of our priorities. By joining us, you will have the opportunity to achieve your professional goals in a collaborative and supportive environment.\n Position Overview\nWe are seeking an experienced Senior Java Middleware Engineer / Apache ServiceMix Specialist to support the analysis, optimization, and modernization of a critical middleware platform. The successful candidate will be responsible for improving system performance, diagnosing complex issues, and providing technical recommendations to enhance reliability, scalability, and maintainability.\nKey Responsibilities\nAnalyze and optimize the existing Apache ServiceMix middleware platform.\nReview and enhance Apache Karaf, Apache ActiveMQ, and overall middleware configurations.\nMonitor, analyze, and improve JVM performance, including memory management, garbage collection, and runtime optimization.\nIdentify, troubleshoot, and resolve memory leaks, performance bottlenecks, and system inefficiencies.\nConduct detailed performance assessments and root-cause analyses.\nEvaluate platform vulnerabilities, technology obsolescence, and associated risks.\nDefine and implement recommendations to improve application stability, scalability, and performance.\nCollaborate with development and infrastructure teams to optimize middleware architecture.\nReview CI/CD and build processes, leveraging GitLab and related development environments.\nProduce technical documentation, assessment reports, and performance improvement roadmaps.\nRequired Skills & Experience\nTechnical Expertise\nStrong hands-on experience in Java development.\nProven expertise with:Apache ServiceMix\nApache Karaf\nApache ActiveMQ\n\nAdvanced knowledge of:JVM tuning and optimization\nGarbage Collection (GC) analysis\nMemory profiling and leak detection\nThread analysis and troubleshooting\nPerformance monitoring and diagnostics\n\nExperience with middleware architecture, integration patterns, and messaging systems.\nKnowledge of vulnerability assessment and technology lifecycle management.\nFamiliarity with GitLab, source control, build pipelines, and deployment processes.\nPreferred Tools\nJProfiler, YourKit, VisualVM, Eclipse MAT\nPrometheus, Grafana, ELK Stack\nMaven, Jenkins, GitLab CI/CD\nLinux environments and shell scripting\nQualifications\nBachelor's or Master's degree in Computer Science, Software Engineering, or a related field.\n7+ years of experience in Java development and middleware technologies.\nProven experience in performance optimization and troubleshooting of enterprise applications.\nStrong analytical, communication, and reporting skills.\nDeliverables\nServiceMix platform assessment report.\nJVM and middleware configuration review.\nMemory leak and performance bottleneck analysis.\nVulnerability and obsolescence assessment.\nActionable recommendations and optimization roadmap.\nPerformance improvement reports with measurable outcomes.","description_format":"text","description_chars":3229,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All 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