Kaushal K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Legacy System Modernization | Enterprise Integration | Digital Transformation With over a decade of hands-on experience in IBM i (AS400/iSeries) development, I specialize in building, modernizing, and integrating enterprise-grade applications across sectors such as finance, retail, manufacturing, and healthcare. I bring a rare blend of core IBM i expertise, modern web technologies, EDI integration skills and AI-assisted development, enabling seamless digital transformation while preserving business-critical operations. Core Competencies- IBM i Development: Expert in RPGLE (Free Format), SQLRPGLE, COBOL, CL, SYNON, ADELIA, and Visual LANSA Web Development: Skilled in PHP for building modern web interfaces and services that interact with IBM i systems Database : Deep knowledge of Db2 for i (DB2/400) and MS SQL, with specialization in query optimization and performance tuning System Modernization & Migration: Proven track record of modernizing legacy RPG/COBOL/Mainframe systems and migrating critical workloads to hybrid environments with minimal disruption EDI & Integration- Standards: ANSI X12, VDA, Positional Tools: IBM Sterling B2B Integrator, EDI Mapping, BPA Connectivity: AS2, FTP/SFTP | VANs: OpenText, Liaison, GHX, SPS, TrueCommerce Transactions: 850, 855, 856, 810, 820, 830, 834, 835, 837, 204, 210, 940, 945, 947, 844, 845 (and others) AI‑Augmented Development- Daily use of GitHub Copilot and Claude for RPG/PHP development, legacy code analysis, SQL optimization, documentation, test case generation, and modernization planning—driving faster delivery, cleaner code, and reduced risk with enterprise compliance. What I Bring to the Table- Strong grasp of IBM i architecture and how to securely integrate it with cloud, web, and third-party systems Ability to analyze, refactor, and modernize legacy codebases for long-term maintainability Experience delivering robust, scalable, and secure solutions for Fortune 500 enterprises Let’s Connect If you’re looking for an experienced professional who can modernize IBM i systems, streamline EDI operations, and accelerate delivery using AI‑assisted development, I’d be glad to discuss how I can support your next initiative. Keywords- #IBMi #AS400 #RPGLE #Synon #COBOL #DB2fori #LegacyModernization #DigitalTransformation #PHPWebIntegration #EDIMapping #EDIIntegration #SterlingIntegrator #VAN #AS2 #ERPIntegration #HybridArchitecture #MainframeMigration #EnterpriseIntegration #WebAndCloudBridge #EDITransactions #NetSuite #Prelude #P21 #WMS #TMS #SecureDataExchange #SQLRPGLE #CLProgramming #VisualLANSA #BusinessProcessAutomation #Fortune500 #iSeriesDeveloper #LegacyCodeRefactoring