Rukshanth Devakumar
Mainframe Solution Architect - Legacy Modernization
Chennai
Summary
Mainframe Solution Architect with 11 years of experience in developing and modernizing large-scale enterprise systems. Adept in COBOL, DB2, CICS, JCL, and Java Spring Boot, delivering robust solutions across banking, financial services, and manufacturing domains. Known for resolving critical system failures, optimizing performance, and designing scalable, cloud-enabled, API-first architectures. Experienced in Agile development and shift-left testing practices. Passionate about legacy transformation using tools like GitHub Copilot and Python automation, and mentoring teams to deliver secure, production-grade software.
Overview
11
11
years of professional experience
4
4
years of post-secondary education
4
4
Certifications
Work History
Principal Software Engineer
Fidelity Investments
Chennai
08.2018 - Current
- Executed scalable software solutions by designing a real-time processing framework using event listeners, which improved high-volume transaction throughput and ensured synchronous operation with upstream and downstream systems.
- Produced secure, high-quality production code across COBOL and Java Spring Boot microservices, adhering to design constraints and system performance standards for enterprise-grade applications in wealth management and retirement systems.
- Architected and delivered modernization designs for the T+1 Stock Settlement program, aligning with financial industry transformation goals while leading cross-functional development teams.
- Led full-stack modernization efforts integrating Java Spring Boot REST APIs with cloud-to-CICS mainframe systems, improving interoperability and enabling distributed processing.
- Enhanced operational stability by improving batch job efficiency and automating mainframe error resolution, reducing job failures by 25% through deep debugging and monitoring.
- Created and implemented Change Data Capture (CDC) patterns to support incremental updates, leading to faster processing and better system hygiene.
- Applied shift-left testing practices across the SDLC, enabling earlier issue detection and significantly reducing defect leakage to later stages.
- Conducted root cause analysis and system troubleshooting for critical production systems, proactively identifying hidden issues and improving coding hygiene and architecture stability.
- Developed Python automation tools for managing job dependencies overall analysis efficiency.
- Produced architectural documentation and visual artifacts to align code with design principles, ensuring traceability and accountability for business-critical applications.
- Mentored junior engineers in both mainframe and Java technologies, promoting high-quality design, clean coding practices, and effective debugging approaches.
- Contributed to engineering community practices by introducing GitHub Copilot for faster mainframe modernization and peer collaboration.
- Drove cross-team collaboration by acting as the bridge between mainframe legacy systems and modern cloud-native application development squads.
- Led development of scalable software solutions using Java and Spring Framework, improving system efficiency and performance.
- Architected microservices for financial applications, enhancing modularity and maintainability of codebase.
Analyst System Dev
Verizon
Chennai
07.2017 - 08.2018
- Led CICS screen migration to open systems, improving user experience and flexibility.
- Developed an automated DB2 contention resolution system, reducing job failures by 25%.
- Supervised iVision project development, ensuring successful implementation and deployment.
Software Engineer
Tech Mahindra
Chennai
08.2014 - 07.2017
- Implemented TSQ-based data storage, reducing DB2 MIPS usage and saving 20 hours/month in processing time LSS Kaizen certified.
- Optimized order processing workflows, improving efficiency for Nissan North America.
- Developed CICS-based enhancement, reducing deployment time and minimizing manual errors.
Education
B. Tech - Information Technology
Rajalakshmi Engineering College
Chennai 06.2010 - 05.2014
Skills
Cobol
Certification
Microsoft DP-203: Data Engineering
Accomplishments
- Batch Process Optimization: Reduced job failures by 25% via production automation & debugging enhancements.
- Process Automation: Implemented automated solutions to reduce manual data corrections for L2 using SJobs, file templates, and cloud-to-CICS API call.
- Designed and Developed T+1 Stock Settlement: Led team to establish new process, improving reliability and reduced settlement time by 60%.
- Strong Analytical and Debugging Skills: Possess excellent analytical, debugging, and problem-solving skills.
Timeline
Principal Software Engineer
Fidelity Investments
08.2018 - Current
Analyst System Dev
Verizon
07.2017 - 08.2018
Software Engineer
Tech Mahindra
08.2014 - 07.2017
B. Tech - Information Technology
Rajalakshmi Engineering College
06.2010 - 05.2014
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