{"id":3681638,"url":"https://alion.io/job/horizon-global-services-software-engineer","title":"Software Engineer","company":{"id":4429116,"name":"Horizon Global Services","domain":"horizonglobalservices.com","url":"https://alion.io/company/horizon-global-services","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":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":8000,"max":13500,"currency":"SGD","period":"month","gross":true,"usd_annual":126672},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"GitHub","optional":false},{"name":"IBM MQ","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Spring Framework","optional":false},{"name":"C#","optional":true},{"name":"C++","optional":true},{"name":"COBOL","optional":true},{"name":"Docker","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-03T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-11-03T00:00:00Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Job Overview\nWe are looking for an experienced Middleware Specialist with strong hands-on expertise in IBM App Connect Enterprise (ACE), IBM MQ and Java Spring Framework.\nThe successful candidate will be responsible for designing, developing, deploying and supporting enterprise integration solutions. The role involves managing middleware environments, implementing integration flows, supporting financial messaging requirements and ensuring the stability and performance of production integration platforms.\nKey Responsibilities\n1. IBM ACE Development & AdministrationDesign, develop and deploy integration flows using IBM App Connect Enterprise (ACE) v11/v12.\n\nAdminister, configure and troubleshoot IBM ACE environments.\n\nMonitor middleware platform performance, availability and reliability.\n\nSupport enterprise integration projects and migration initiatives.\n\nPerform troubleshooting and resolve integration-related issues.\n\n2. Java & Backend DevelopmentDevelop backend components using Java Spring Framework.\n\nBuild and maintain integration services and supporting application components.\n\nImplement enterprise integration patterns and best practices.\n\nCollaborate with development teams to deliver reliable integration solutions.\n\n3. IBM MQ & MessagingConfigure, manage and troubleshoot IBM MQ environments.\n\nSupport message queues and communication between enterprise applications.\n\nMonitor messaging services and resolve message processing failures.\n\nEnsure reliable and secure message delivery.\n\n4. SWIFT & Financial IntegrationInterpret and implement solutions using SWIFT messaging formats.\n\nSupport financial services integration and messaging requirements.\n\nTroubleshoot messaging and transaction processing issues.\n\nEnsure accuracy and reliability of financial integration flows.\n\n5. DevOps & DeploymentSupport CI/CD pipelines and deployment automation.\n\nUse GitHub for source code management and version control.\n\nWork with Linux environments for deployment, monitoring and troubleshooting.\n\nFollow established software development and release management practices.\n\n6. Production Support & DocumentationProvide production support and resolve technical incidents.\n\nPerform root cause analysis and implement corrective solutions.\n\nCollaborate with cross-functional teams to resolve integration issues.\n\nMaintain technical documentation, architecture diagrams and code change records.\n\nMandatory Technical Skills\nIBM App Connect Enterprise (ACE) v11/v12.\n\nIBM MQ and Message-Oriented Middleware.\n\nJava Spring Framework.\n\nLinux Operating System.\n\nSWIFT Messaging Formats.\n\nGitHub and CI/CD Pipelines.\n\nEnterprise Integration Patterns.\n\nMiddleware Administration and Troubleshooting.\n\nProduction Support and Incident Resolution.\n\nPreferred Skills\nIBM ACE Upgrade and Migration Projects.\n\nDocker and Containerization.\n\nKubernetes.\n\nFinancial Services Integration.\n\nEnterprise Application Integration.\n\nEducation\nBachelor's degree in Computer Science, Information Technology, Software Engineering or a related discipline.\n\nAdditional Requirements\nMinimum 5 years of relevant hands-on technical experience.\n\nStrong analytical and problem-solving abilities.\n\nExcellent verbal and written communication skills.\n\nStrong attention to detail.\n\nAbility to collaborate effectively with cross-functional technical teams.\n\nSkills\nLiaising with cross functional teams, Migration Projects, Design, Enterprise Integration Solution, Troubleshooting Procedures, Monitor systems performance, Spring Framework, Software Engineering, ACE, Written Communication, Attention to Detail, Analytical and Problem-Solving Skills, Software Design, C#, Backend Development, 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