Aging COBOL Codebase
Decades-old COBOL programs are difficult to maintain, extend or document without specialized expertise.
Transform legacy COBOL/CICS applications into cloud-native Angular & Spring Boot solutions, powered by Generative AI and validated by your SMEs.

Kumaran's Mainframe Modernization Platform accelerates the migration of legacy COBOL/CICS applications into modern, cloud-native architectures. Using a combination of automated source analysis, Neo4j knowledge graphs and Generative AI code generation, the platform migrates the full application stack - UI screens, business logic APIs and nightly batch jobs - while preserving every business rule with full fidelity.
The platform has been proven on production applications, delivering a complete Angular front-end, Spring Boot middleware and Spring Batch batch processing tier, with human-in-the-loop validation at every critical phase.
Organizations running mainframe workloads face mounting pressures that make modernization both urgent and complex:
Decades-old COBOL programs are difficult to maintain, extend or document without specialized expertise.
Mainframe licensing, MIPS charges and infrastructure costs continue to escalate year over year.
BMS-based screens are tightly coupled to mainframe infrastructure with no web-equivalent counterpart.
Complex JCL-COBOL batch jobs for EOD processing are fragile and hard to migrate incrementally.
The shrinking pool of COBOL/JCL developers creates organizational and operational risks.
Migrating VSAM and relational data without business-logic fidelity risks critical data integrity failures.
Kumaran's platform addresses these challenges through a structured, AI-accelerated migration methodology:
All COBOL programs, copybooks, BMS screens and JCL streams are parsed into a rich structured metadata format, forming the single source of truth for migration.
Metadata is loaded into a Neo4j graph database capturing parent-child relationships across business groups (Account, Card, Transaction, BillPayment) and their operations.
Generative AI prompts translate knowledge-graph nodes into working Angular components, Spring Boot service layers and Spring Batch job implementations.
SME review gates before and after code generation ensure business correctness, with IDE-based compilation and runtime error correction built in.
Angular UI, Spring Boot APIs and Spring Batch jobs are deployed together as a unified cloud-native application with Azure SQL as the backend datastore.
The migration follows a structured 7-step process from analysis to deployment:
Parse all COBOL programs, copybooks, JCL job streams and BMS screens to extract structured metadata.
Load parsed metadata into Neo4j to capture relationships, workflows and business groups across all components.
Review groups, operations and workflows with business SMEs before committing to migration targets.
Select design templates; GenAI converts BMS screens into modular Angular components with Material controls.
GenAI creates Entity, Repository, Service, Controller and DTO layers from COBOL business logic.
JCL-COBOL batch jobs (PostTransaction, InterestCalculation, StatementGeneration) converted with Azure SQL.
All applications compiled, IDE-validated and deployed together for complete end-to-end online + batch flow.

Generative AI prompts drive code generation across Angular, Spring Boot and Spring Batch layers, cutting delivery timelines by up to 70%.

Every COBOL paragraph, copybook structure and JCL job is captured and migrated without loss of business rules.

Neo4j-based knowledge graph maps relationships across programs, groups and workflows, enabling smart, traceable migration decisions.

SME review checkpoints at every key phase ensure business correctness before code generation begins.

Covers online CICS flows, BMS screen UIs, nightly batch jobs and data migration, all in one unified platform.

Migrated applications are containerizable, CI/CD-ready and integrate with Azure SQL, Spring Batch schedulers and modern DevOps tooling.
Accelerates data transfer and comparison across diverse sources, integrity guaranteed at every stage.
Explore DQVReal-time visibility into team performance with full transparency across every level of the org.
Explore eTRKReusable frameworks that slash test creation time, built for teams that ship fast and can't afford gaps.
Explore KTAC
Computer-vision pipeline that extracts complex tables, text and layouts straight into clean JSON.
Explore IDPAccelerates data transfer and comparison across diverse sources, integrity guaranteed at every stage.
Explore DQVReal-time visibility into team performance with full transparency across every level of the org.
Explore eTRKReusable frameworks that slash test creation time, built for teams that ship fast and can't afford gaps.
Explore KTAC
Computer-vision pipeline that extracts complex tables, text and layouts straight into clean JSON.
Explore IDPAccelerates data transfer and comparison across diverse sources, integrity guaranteed at every stage.
Explore DQVReal-time visibility into team performance with full transparency across every level of the org.
Explore eTRKReusable frameworks that slash test creation time, built for teams that ship fast and can't afford gaps.
Explore KTAC
Computer-vision pipeline that extracts complex tables, text and layouts straight into clean JSON.
Explore IDP







Real outcomes delivered through mainframe migration engagements across enterprises.
Talk to our migration experts about transforming legacy COBOL/CICS applications into cloud-native Angular & Spring Boot solutions.