ARUNKUMAR R
Chennai
Summary
Senior Full Stack Specialist with 20+ years of experience designing, modernizing, and managing cloud-native, event-driven, high-throughput financial platforms across Banking, Custody, Trading, and Middle Office (Post-Trade) domains. Currently based in India, owning and supporting U.S.-based mission-critical platforms, collaborating closely with U.S. product, architecture, and operations stakeholders. Strong ownership of platform and application non-functional requirements (NFRs) including performance, scalability, resilience, security, modernization, and operational stability, with deep expertise in platform engineering, post-trade processing, and AI-enabled decision support.
Overview
21
21
years of professional experience
1
1
Certification
Work History
Senior Full Stack Specialist / Principal Consultant
Bank of New York (BNY)
08.2017 - Current
- Serve as Platform Manager and Application Manager for a mission-critical Middle Office platform supporting U.S. business lines, owning non-functional requirements (NFRs) including performance, scalability, resilience, security, modernization, and operational stability to meet the defined OKRs.
- Manage the application landscape across 4 agile teams with a total of 12 engineers, providing technical leadership, prioritization, and delivery governance across geographies.
- Own performance engineering and capacity planning for U.S.-facing platforms, ensuring sustained high-throughput post-trade processing with predictable latency and availability.
- Drive application modernization strategy, including architectural simplification, service refactoring, technology upgrades, and cloud cost optimization.
- Lead cybersecurity and vulnerability management, coordinating remediation, risk reduction, and compliance with enterprise security standards.
- Ensure resilience and high availability through proactive design reviews, failure-scenario analysis, retry/orchestration strategies, and operational readiness.
- Oversee BAU and client support operations for U.S. stakeholders, including incident management, root-cause analysis, production stabilization, and continuous improvement.
- Partner with product owners, solution architects, RTEs, operations, SRE, and infrastructure teams to align delivery priorities with platform scalability, resilience, and long-term architectural health.
- Champion AI adoption within engineering and operations, enabling predictive insights and data-driven decision support.
- Mentor engineers across pods, enforcing enterprise engineering standards and best practices.
- Architected cloud-native microservices powering Middle Office post-trade workflows including trade capture, enrichment, matching, exception handling, and settlement for U.S. markets.
- Built and maintained 40+ event-driven microservices supporting critical transaction lifecycles.
- Led large cross-domain Cash Sweeping and Pooling initiatives involving custody, accounting, cash management, and reconciliation teams.
- Consolidated microservices footprint from 80 → 60, simplifying event workflows and reducing messaging overhead.
- Delivered Postgres → Oracle Exadata migration improving reliability and database performance.
- Executed Ruby → Java modernization, reducing instance counts and optimizing cloud resource usage.
- Part of ongoing initiative to replace IBM MQ with Apache Kafka to support higher throughput and reduce message duplication.
- Built database archival and purge frameworks; performed deep Oracle and Postgres performance tuning.
- Standardized CI/CD pipelines and implemented enterprise DevSecOps practices.
- Improved platform resiliency through distributed tracing, retry orchestration, failure isolation, and performance tuning.
- Contributor to Platform Engineering AI enablement using GitHub Copilot, Windsurf, and BNY’s ELIZA AI platform.
- Developed Trade Volume Prediction Agent using Linear and Logistic regression models to support capacity planning and scaling decisions for U.S.-based platforms.
- Built an automation solution to convert complex vulnerability reports into concise, non-technical summaries for PI planning and leadership review.
- India-based role supporting U.S. Middle Office, Custody & Platform Engineering teams
Senior Software Engineer
Pershing Technologies
07.2010 - 07.2017
- Engineered NEXUS Trade Desk, an institutional trading and portfolio management platform.
- Built ESB-based integrations and SOAP services across multiple enterprise systems.
- Designed enterprise-grade RBAC authorization frameworks.
- Led onboarding of institutional clients with regulatory and compliance requirements.
- EMEA (Global Client Platforms)
Software Engineer
Verizon Data Services India
Chennai
06.2005 - 06.2010
- Built large-scale broadband provisioning and order-management systems.
- Integrated HSI negotiation workflows into enterprise platforms.
- Refactored and optimized legacy systems for performance and maintainability.
- Chennai, India
Education
Bachelor of Engineering - Computer Science
Anna University
01.2005
Skills
- Java
- Python
- Ruby
- C#
- JavaScript
- Spring Boot
- Ruby on Rails
- NET
- Nodejs
- Middle Office Post-Trade Processing
- Cash Sweeping & Pooling
- Custody
- Settlement
- Trading Systems
- Microservices
- Event-Driven Architecture
- Orchestration Frameworks
- Regression Models (Linear, Logistic)
- Predictive Modeling
- Azure
- Kubernetes
- Docker
- GitLab CI/CD
- Jenkins
- IBM MQ
- RabbitMQ
- Apache Kafka
- Oracle Exadata
- Postgres
- SQL Server
- Performance Engineering
- Scalability
- Resilience
- DevSecOps
- Production Support
Certification
Microsoft Azure Fundamentals (AZ-900)
Timeline
Senior Full Stack Specialist / Principal Consultant
Bank of New York (BNY)
08.2017 - Current
Senior Software Engineer
Pershing Technologies
07.2010 - 07.2017
Software Engineer
Verizon Data Services India
06.2005 - 06.2010
Bachelor of Engineering - Computer Science
Anna University