Senior IBM i (AS400/iSeries) Developer – Telecom Billing Systems
Brampton, Ontario, CanadaContractPosted Jun 25, 2026
Job description
Senior IBM i (AS400/i. Series) Developer – Telecom Billing Systems Experience Required: 6–8 Years Location: Brampton, ON – Hybrid (2–3 Days WFO) Duration: 6–12+ Months Role Description Must be eligible for Government of Canada Security Clearance Hands-on IBM i (i. Series/AS400) technical expertise across:
- RPG
- RPGLE (Free Format)
- CL/CLLE
- COBOL
- SQL/Embedded SQL
- DDM
- Display/Subfiles
- DB2 for i
- ILE Architecture
- Batch Jobs
- Scheduled Processes Experience in development, production support, troubleshooting, and technical leadership Experience working with telecommunications enterprise billing systems, including:
- Billing
- Rating
- Message Processing
- Accounts Receivable
- Ordering
- System Integrations using Web Services and MQ Proficiency with IBM i development and support tools, including:
- VS Code
- GitHub Copilot
- RDi
- Implementer (MKS)
- Hawkeye
- PKENCRYPT / PKZIP Experience with:
- Development
- Code promotion
- Impact analysis
- Troubleshooting
- Environment management Strong documentation, impact analysis, and solution design capability, including:
- Technical specifications
- Process flows
- Data mappings
- Operational procedures Strong communication and stakeholder management skills, with ability to:
- Lead junior developers
- Manage priorities
- Follow development standards
- Perform peer reviews
- Maintain delivery discipline
- Ensure knowledge transfer and operational readiness across Business, QA, Operations, and other teams Essential Skills 8+ years of IBM i / AS400 experience, including recent hands-on Senior Developer responsibilities Strong capability in:
- RPG/RPGLE
- CL/CLLE
- SQL
- DB2 for i
- Batch Processing
- Legacy Application Support Experience in telecommunications billing environments preferred Strong estimation, planning, and technical delivery management capability Ability to:
- Ramp up independently
- Work with limited transition support
- Collaborate with Business, QA, Operations, and cross-functional teams Additional Requirement Must be eligible to apply for Government of Canada Security Clearance