Modernization Architect || Short Term/Part Time
- Celsior Technologies
- 12 - 22 years
- Noida, Gurugram
- 1 day ago
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Job Description
Role & responsibilities
We are looking for a Modernization Architect with hands-on experience in executing end-to-end modernization of IBM i (AS400) systems. This role will complement an existing architectural leadership team by providing real-world insights, conducting legacy analysis, validating proposed strategies, and ensuring successful technical execution. The consultant will play a key role during the assessment and PoC phases by sharing best approaches, recommendations, risks & challenges, best practices & patterns, and lessons learned from past engagements.
Key Objectives
- Analyze IBM i legacy stack and assist in breaking down monoliths into modern components.
- Provide practical insights into UI, middleware, and legacy backend modernization.
- Validate PoC results and flag tool/approach limitations early in the lifecycle.
- Collaborate with architects and client teams to align on modernization execution best practices.
Key Responsibilities
- Assessment & Planning, Analyze current AS400 systems (jobs, CL programs, COBOL, RPG, DB2). Document dependencies, pain points, data flows, and business-critical logic.
- Strategy & Road mapping, Define phased modernization/migration strategy: rehost, refactor, rearchitect, rebuild. Prioritize components based on risk, ROI, and complexity.
- Target Architecture Design, Design hybrid architectures: bridge legacy and modern systems (e.g., microservices, APIs, cloud-native apps). Align with enterprise tech stack and patterns.
- Data Modernization, Lead DB2 migration to modern databases (SQL Server, PostgreSQL, etc.). Handle schema transformation, data cleansing, and referential integrity.
- Tooling & Automation, Select tools for code analysis, reverse engineering, job orchestration, API exposure, testing, and CI/CD.
- Team Alignment, Help testers understand batch/job logic. Guide full stack teams on legacy constraints.
- Governance & Quality, Enforce best practices for documentation, coding, error handling, testing, and version control during transition.
- Risk Management, Identify failure patterns (e.g., partial logic conversion, data corruption, missed business logic). Define mitigation plans. Prevent rework through early reviews.
- Migration Expertise, Code refactoring strategies (lift & shift vs rewrite), logic reengineering, database migration, API faade layer design.
- Data Migration Tools: Responsible for data migration strategy recommendations and tooling.
- Recommendation of any Reverse Engineering Tools
- Recommendation of Jobs migration to modern tech and cloud
- Expertise in defining testing strategies
Required Technical Skills
- Modernization Strategic Experience: Proven experience in end-to-end IBM i (AS400) modernization projects. Grasp on rehosting (Lift & Shift), reengineering, API wrapping, and hybrid co-existence patterns. Knows how to deal with ongoing maintenance and support changes to migrated applications.
- Reverse Engineering Experience: Understanding legacy technologies (COBOL, RPGLE, CL) and their behaviors. Can identify typical pitfalls (e.g., misinterpreted business logic, missing batch logic, SME unavailability)
- Database Experience: Experience with DB2/400, SQL optimization, and understanding legacy data models.
- Modernization Tool Experience: Experience using any AI tool during migration (e.g., TSRI, SWIM, IBM ADDI, GPT-based tools).
- DevOps Strategic Experience: Exposure to DevOps, logging, and quality practices relevant to migration pipelines.
- Security Considerations: Familiarity with legacy security models (object-level, menu-based) and mapping them to modern RBAC/OIDC models
- Knowledge of dual-run techniques, reconciliation reports, and data validation rules.
- Advises on building robust test strategies data validation, job simulation, user scenario mapping.
- Modernization Migration Resourcing Experience: Identifies missing roles/skills and advises on resource planning or training.
Job Classification
Industry: IT Services & ConsultingFunctional Area / Department: Engineering - Software & QARole Category: Software DevelopmentRole: Technical ArchitectEmployement Type: ContractContact Details:
Company: Celsior TechnologiesLocation(s): Noida, Gurugram
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