Varadharajan Raghavendran profile photo

Varadharajan Raghavendran

Senior Consultant Staff Engineer / SDE-4

Building the regulated onboarding infrastructure powering Currencycloud’s B2B2X ecosystem at Visa.
6+ years designing event-driven distributed systems, GenAI-assisted compliance workflows, and fintech platforms at scale.

Experience

7+ years

Patents

2 Filed

Tech Stack

Java & Cloud

Education

BE CSE 9.3

Programming Skills

Java Expert
Python & Scala Advanced
JavaScript · Angular · Node Proficient
SQL · MongoDB · Firebase Proficient

Technical Skills

  • Distributed Systems
  • Event-Driven Architecture
  • Apache Kafka
  • Spring Boot
  • Kubernetes
  • Full Stack Development
  • ETL / Data Pipelines
  • Redis / RediSearch
  • React / Angular
  • AI / Deep Learning
  • NLP
  • Domain-Driven Design
  • Android Development
  • JanusGraph / Hadoop
  • Blogging

Career Impact at a Glance

0+ Years at Visa Intern → Staff Engineer
0 Events / sec Kafka peak throughput per pod
0M+ Records / day Cardholder pipeline (Tier-0 SLA)
0% P99 Latency Cut Datadog-driven observability
0% Faster Compliance Claude AI agentic automation
0 Patents Published USPTO + tdcommons

Domains of Expertise

Distributed Systems

Designing event-driven, fault-tolerant architectures that scale to millions of daily transactions with Tier-0 reliability.

Apache Kafka Kubernetes Spring Boot DDD
AI & GenAI Engineering

Building production AI systems — agentic compliance workflows with Claude, RAG pipelines with Redis VectorStore, and LLM-powered creative tools.

Claude AI RAG Llama-3 Vector Search
Fintech Platform Engineering

Building regulated B2B2X onboarding and digital benefits platforms serving global Issuers, Resellers, and cardholders.

PCI DSS GDPR FIDO B2B2X
Data Engineering

Modernising ETL/Spark pipelines to real-time stream processing with Lambda architectures handling 5M+ records/day.

Apache Spark Hadoop Hive Snowflake pattern
Full-Stack Engineering

End-to-end platform development from React micro-frontends and REST/gRPC APIs to reactive Spring Boot microservices.

Java React gRPC Redis
Identity & Fraud Intelligence

Generating next-gen fraud signals from identity graphs, driving ML-based fraud scoring and machine unlearning on Graph Neural Networks.

JanusGraph Graph ML Graph Neural Nets TC40

Patents & Accomplishments

  • USPTO Patent – US20240036914A1 – System and Method for Scheduling Database Applications • Visa (Feb 2024)
  • Technical Disclosure – tdcommons – IoT Devices as Payment Instrument for ATM Transactions (Jun 2023)
  • Patent Awarded – Machine Unlearning on Identity Graph Neural Networks
  • Trade Secret Filed – Enhanced methods for advertiser campaign measurement (2021)
  • TechCon 2022 – Visa Bengaluru Technical Conference, Paper: Multiparty Transaction SCA (Runner-up)

Certifications & Volunteering

  • Certified Kubernetes Application Developer (CKAD) – The Linux Foundation (2021)
  • Deep Learning Specialization – Coursera (2020)
  • GRIT Volunteer (2022)
  • Visa Bengaluru Quiz Volunteer (2021)
  • Toastmaster — VSpeakers (2020)

Recommendations

From LinkedIn • Colleagues at Visa & Uber

Sai Kiran Ramella — Sr. Product Analyst, Visa • Nov 2025
“I had the opportunity to work closely with Varadh, and I must say he’s one of the most impressive colleagues I’ve worked with. The depth of his knowledge and the level of ownership he brings to any project truly stand out. He doesn’t just focus on completing tasks, he sees the bigger picture, ensures every detail is taken care of, and drives things forward with clarity and purpose. During the time we worked together, Varadh took complete ownership of the project and handled it end-to-end, keeping all stakeholders well-informed. His ability to design complex systems is remarkable, and he brings a great mix of technical strength and leadership. Working with him has been a great experience, and I would highly recommend Varadh to any team looking for a reliable, skilled, and truly proactive professional.”

Shivani Gupta — Software Engineer, Uber • Feb 2022
“Varadharajan is a great professional to work with. He is an intelligent and curious person and has a great eye for detail. His energy to get things done is wonderful and it helped us achieve multiple milestones.”