Architecting reactive systems & high-throughput cloud scale.
Hi, I'm Aravind Suresh. I design resilient distributed architectures, event-driven streaming pipelines with Apache Kafka, and reactive microservices processing over 1 Crore (10,000,000+) transactions daily. Currently leading the PFM B2B Rearchitecture across SaaS & On-Premises, spearheading InfoSec AI initiatives, and championing Claude Code agentic workflows.
"lead": "Aravind Suresh",
"role": "Senior Technical Lead Engineer",
"throughput": "10,000,000+ txn / day",
"architecture": "PFM B2B (SaaS & On-Prem)",
"stack": [
"Spring Boot", "Java Reactive", "Claude Code",
"Kubernetes", "Docker", "AWS", "Kafka"
],
"specialization": "InfoSec AI & Enterprise FinTech",
"system_health": "99.99% Operational"
}
★ 1st Place - Clash of Tech Titans Hackathon
★ Pat On the Back Excellence Award
Scaling Critical Financial Infrastructure
Over half a decade of engineering high-availability banking systems and leading high-velocity engineering teams.
I am a Senior Technical Lead Engineer at Perfios Software Solutions, where I lead the architecture, scalability, and modernization of our enterprise financial platforms — including the PFM (Personal Finance Management) B2B Rearchitecture across SaaS and On-Premises deployments, as well as India's Account Aggregator (AA) framework powering financial data sharing across premier banks.
My engineering journey spans taking architectural blueprints to high-volume production systems handling over 10 million transactions daily. By adopting non-blocking Reactive programming paradigms, I optimized system throughput, reduced resource overhead, and eliminated thread pool starvation across our core microservices.
Beyond distributed backend systems, I actively drive AI modernization — architecting InfoSec AI initiatives for financial data protection and threat modeling, and integrating Claude Code agentic workflows to accelerate enterprise refactoring.
PFM B2B Rearchitecture (SaaS & On-Prem)
Architecting modular, decoupled microservices for Personal Finance Management, enabling simultaneous rollout to multi-tenant cloud SaaS and air-gapped on-premises banking distributions.
Reactive Architecture & High Throughput
Engineered non-blocking microservices using Spring Boot & Java Reactive streams, reliably servicing 10M+ (1 Crore) transactions daily with minimal latency.
InfoSec VAPT Automation & Agentic AI
Automated VAPT dependency scanning with Google ADK and Claude slash commands interfacing with Harbor and Tenable APIs, and led automated GitLab Ultimate security remediation.
Professional Experience
Progressive technical leadership and architectural achievements at Perfios Software Solutions.
Senior Technical Lead Engineer
Spearheading enterprise PFM B2B rearchitecture across hybrid deployment models, driving InfoSec VAPT scanning automation with Claude Code & Google ADK, and accelerating CI/CD security fixes.
- Leading the architectural modernization of PFM (Personal Finance Management) B2B solutions, architecting dual-target deployments for cloud-native multi-tenant SaaS and secure, compliant On-Premises banking environments.
- Automated InfoSec VAPT and dependency scanning workflows using Google ADK and custom Claude slash commands integrated directly with Harbor and Tenable APIs.
- Spearheaded automated GitLab Ultimate VAPT remediation, vulnerability triage, and secure code intelligence across CI/CD pipelines.
Technical Lead Engineer
Led engineering teams across core Account Aggregator microservices, platform modernization, and AI innovation.
- Engineered the scaling of Perfios Account Aggregator framework microservices using Reactive programming, optimizing system throughput to handle close to one crore (10,000,000+) transactions per day while reducing response latency.
- Spearheaded architectural modernization of core Account Aggregator microservices, transitioning legacy monolithic components into resilient, loosely coupled microservices.
- Pioneered strategic AI initiatives, leading the end-to-end development of Generative AI Proof of Concepts (PoCs) evaluating LLM viability for financial automation.
Principal Software Development Engineer
Spearheaded platform integration layers and owned key modules within the national Account Aggregator framework.
- Architected a robust API Orchestration Layer to standardize external service invocations, promoting code reusability and reducing integration turnaround for new financial institutions by several weeks.
- Owned the end-to-end SDLC of the Financial Information Provider (FIP) module, taking the product from whiteboard architectural design to a production-grade system handling millions of requests daily.
- Developed key growth-focused initiatives within the AA framework, directly contributing to wider ecosystem adoption and banking market penetration.
Senior Software Engineer
Drove institutional bank onboarding and engineered real-time data streaming architectures.
- Led the technical onboarding for marquee major Private and Public sector banks to the Account Aggregator platform, managing the complete lifecycle from sandbox testing to production rollout.
- Developed a high-throughput data streaming service to feed the Admin Dashboard, reducing data latency and providing stakeholders with real-time operational visibility into system metrics.
Software Developer
- Engineered the Perfios-AA Admin Dashboard, a critical internal tool for managing the AA module. Developed robust RESTful Web Services using Spring Boot while crafting a responsive frontend with React JS and Material UI.
- Streamlined the release lifecycle by establishing GitLab CI/CD pipelines and containerizing applications with Docker, ensuring consistent production deployments.
Software Development Intern
Contributed to initial research, service prototypes, and core banking interface integrations during final semester of B.Tech.
B.Tech in Information Science & Engineering
Graduated with 8.0 CGPA. Deep foundation in Data Structures, Algorithms, Distributed Computing, Database Management Systems, and Computer Networks.
Architecture & Key Initiatives
Key systems architected to handle mission-critical financial workloads, reactive processing, and real-time streaming.
PFM B2B Dual-Target Architecture
Leading the architectural modernization of Personal Finance Management (PFM) B2B solutions, decoupling legacy modules into scalable microservices supporting both multi-tenant cloud SaaS and private on-premises banking deployments.
Account Aggregator Reactive Framework
Engineered non-blocking reactive microservices for the Perfios AA framework. Transitioned legacy thread-per-request models into high-throughput reactive pipelines capable of servicing 1 crore transactions daily with minimal latency.
API Orchestration Layer
Architected an enterprise-grade orchestration layer to unify and standardize external banking service invocations, promoting code reusability and reducing time-to-market for new financial integrations by several weeks.
Financial Information Provider (FIP) Module
Owned end-to-end SDLC from whiteboard design to production deployment. Handles millions of concurrent user requests from Tier-1 public and private banking partners across India.
High-Throughput Streaming & Admin Dashboard
Built an event-driven data streaming service using Apache Kafka to feed the operational Admin Dashboard, delivering real-time telemetry, transaction metrics, and anomaly detection.
InfoSec VAPT Automation & Agentic Workflows
Architected automated security and dependency vulnerability scanning using Google ADK and custom Claude slash commands integrated with Harbor (container registry) and Tenable APIs. Spearheaded automated GitLab Ultimate VAPT remediation across distributed microservices.
Automated CI/CD & Containerization Pipeline
Architected automated GitLab and GitHub release pipelines with Docker and Kubernetes, standardizing deployment verification, static security analysis, and zero-downtime rollouts.
Awards, Publications & Certifications
Technical contributions, hackathon honors, and professional credentials.
AI vs 2000 Dot-Com Bubble: Simple Guide
NEWComprehensive economic and systems analysis comparing 1995–2002 to 2022–2026+. Explains where AI stands on the hype curve, the $600B capex-revenue gap, and what the impending application shakeout looks like.
Winner — Perfios TechLeap
March 2025Authored and published the acclaimed tech article: "Embracing Reactive Programming: Optimizing Cloud Database and Web Operations" on the official Perfios Tech Blog.
Read Article on Medium1st Place — Clash of Tech Titans
March 2023Secured first place in the company-wide hackathon at Perfios Software Solutions for building innovative platform solutions solving complex banking bottlenecks.
Pat On the Back Award
March 2024Awarded by Perfios leadership for exceptional engineering leadership, architectural ownership of the FIP module, and dedication to platform scalability.
Generative AI with Large Language Models
April 2024 • CourseraCertified in LLM architectures, fine-tuning methodologies (PEFT/LoRA), transformer mechanisms, and RLHF aligned model deployment by DeepLearning.AI.
Skills & Technologies
Core competencies, cloud systems, and architectural patterns applied daily.
Backend & Reactive
Cloud, SaaS & On-Prem
Databases & Storage
AI & Security
Frontend & UI
Leadership & Practices
Let's Connect
Open to discussions regarding technical leadership, distributed system architecture, and strategic collaborations.
Get in Touch
Whether you're looking to discuss high-throughput reactive architecture, banking system modernization, or exciting engineering challenges, feel free to drop a message or reach out directly.