{"id":1944163,"url":"https://alion.io/job/optimum-solutions-integration-developer-webmethods-specialist-enterprise-b2b","title":"Integration Developer / webMethods Specialist (Enterprise B2B)","company":{"id":3800114,"name":"Optimum Solutions","domain":"theoptimum.net","url":"https://alion.io/company/optimum-infosystem","size_band":"1001-5000","is_staffing_agency":true,"employer_type":"agency","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":"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":4000,"max":7000,"currency":"SGD","period":"month","gross":true,"usd_annual":65604},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"GPG","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-06T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-06T00:00:00Z","board_verified":false,"closed_at":null,"days_open":12,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":12},"description":"About the Role\nWe are seeking a skilled and analytical Software AG webMethods Developer to design, support, and enhance our enterprise E-Invoice integration platform. In this role, you will play a critical part in maintaining robust B2B document exchanges, ensuring compliance with electronic invoicing frameworks, and guaranteeing high availability for mission-critical financial transactions.\nResponsibilities\nDesign, develop, and maintain robust e-invoice integration flows, mappings, and transformations using Software AG webMethods.\nHandle secure file transfers (SFTP) and implement data security using PGP/GPG file processing.\nTroubleshoot production issues, perform Root Cause Analysis (RCA), and resolve integration failures swiftly.\nMonitor, manage, and support scheduled workflows via Control-M.\nTranslate business and statutory requirements into XML, UBL, and Peppol message structures.\nDeploy releases across UAT and Production environments while collaborating with cross-functional technical teams.\nRequirements\n4 to 8 years of hands-on software engineering experience specializing in middleware integration and enterprise application support.\nStrong mastery of Software AG webMethods Integration Server and webMethods Designer\nProficient in developing and debugging Flow Services, mappings, transformations, and complex exception handling.\nDeep familiarity with XML, XSD, and UBL data formats.\nHands-on experience with SFTP and PGP/GPG encryption protocols.\nStrong SQL skills for relational database troubleshooting and data tracing.\nExperience with Control-M job scheduling and monitoring.\nFamiliarity with Peppol e-invoicing standards, EN16931, or Singapore e-invoice (InvoiceNow) frameworks.\nExcellent analytical mind for troubleshooting, strong documentation habits, and effective stakeholder communication.\nSkills\nControl M, XSD, Business Requirements Document, Design, Service Development, Fault Management, Analytical Mind, Data Formats, Technical Deployment, e-invoicing, WebMethods, Workflow Management, RCA, Invoice Handling, Schedule Control, SQL Development, WebMethods Integration Server, Data security 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