You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Neeraj KumarNK

Neeraj Kumar

Mainframe Modernization & Migration Specialist

€370/day
Calcutta, IN
15+ years

Average response time: 1 hour

About Neeraj

  • • Accomplished and agile Mainframe Modernization Architect with over 17 years of experience delivering enterprise-scale IT transformations.
  • • Proven track record of leading end-to-end modernization projects, including cloud migrations (AWS), mainframe reengineering, and transitions to Java, Linux, and Raincode platforms.
  • • Adept at defining modernization blueprints, executing PoCs, and bridging legacy systems with cloud-native and open technologies.
  • • Recognized for cross-functional leadership, strategic planning, and optimizing large-scale IT environments for global clients.
  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Cognizant
    Mainframe Architect
    DIGITAL AND IT
    August 2018 - August 2025 (7 years)
    Kolkata, West Bengal, India
    • Directed modernization projects for AXA UK & Ireland; designed cloud-friendly architectures aligned with business KPIs.
    • Oversaw OMNI enhancements for VOYA Financial’s retirement services on Linux.
    • Led Adabas/Natural-based development for logistics and finance during Nissan HQ transition.
    • Partnered with clients to assess legacy environments and create optimization roadmaps.
    Mainframe, COBOL Natural Adabas Linux Raincode
  • Tech Mahindra
    Senior Mainframe Developer
    DIGITAL AND IT
    June 2016 - July 2018 (2 years and 1 month)
    Kolkata, West Bengal, India
    • Managed migration of Bell Canada’s mainframe systems to Linux, replacing JCL with Shell scripts.
    • Migrated applications to Micro Focus COBOL.
    • Coordinated between clients, onshore and offshore teams to ensure project alignment and delivery.
    Linux COBOL Mainframe, Bash Powershell
  • Tata Consultancy Services
    Assistant Consultant
    DIGITAL AND IT
    February 2015 - June 2016 (1 year and 4 months)
    Kolkata, West Bengal, India
    • Led core banking modernization projects using mainframe technologies for RBS UK & Ireland.
    . Developed application re-writing and mainframe data migration initiatives.
    COBOL CICS VSAM JCL

Recommendations

Be the first to recommend Neeraj

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor of Engineering
    Delhi College of Engineering
    2007
    Bachelor of Engineering

Skill set

Categories