Coming soon
Building Scalable Payment Systems with Event-Driven Architecture
Lessons learned from designing high-throughput payment systems that process millions of transactions.
System DesignKafkaPayments
Coming soon8 min read
// 01. about
About Me
Pune, IndiaIBS Intelligence Award Winner7.5+ yrs · distributed systems & AI platforms
From designing mechanical systems to architecting payment platforms serving millions of users, my unconventional journey into software engineering has shaped how I approach building resilient and scalable systems.
I started my career as a Mechanical Engineer working on piping design and stress simulations. While using C/C++ for simulation tooling, I discovered my interest in software engineering. What began as weekend experiments building small applications soon became a full transition into backend development.
I prepared intensively, secured All India Rank 34 in the C-DAC entrance exam, and completed my PG Diploma in Advanced Computing from C-DAC ACTS Pune, which launched my career in software engineering.
My journey in fintech began at Volante Technologies, where I worked on enterprise payment infrastructure contributing to the VolPay platform, recognized by the IBS Intelligence Awards and used by financial institutions such as Goldman Sachs.
I later joined TartanHQ as a Founding Software Engineer, working directly with the CEO and CTO to build products from day zero. I helped build the Perks employee benefits platform, onboarded 30K+ concurrent users generating $66K/month revenue, and designed distributed systems and integrations across multiple providers.
Today I focus on designing high-scale backend systems and event-driven platforms handling large volumes of data and financial transactions. Recently, I've also been working on AI-powered developer tooling and production support agents using RAG pipelines and LLM APIs.
Beyond code, I'm a National Level Taekwondo player who has won multiple gold medals and represented Maharashtra State. Music is my other passion - as a guitarist and vocalist, I've been part of an indie-rock band performing at venues like Hard Rock Cafe and Blue Frog. Whether it's sports, music, or software - I love finding new ideas and turning them into reality from scratch.
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Years Experience
0
Companies
0
Revenue Generated
0
Users Impacted
My Journey
2014
Mechanical Engineering Graduate
B.Tech from Shivaji University — non-tech to tech journey begins
2019
Tech Transition · AIR 34
CDAC ACTS Pune — pivoted into software engineering
2019–21
First Tech Role
Volante Technologies — IBS Intelligence Award for VolPay
2021–24
Founding Engineer
TartanHQ — built Perks from day zero, 30K+ users, $66K/mo
2024–25
Enterprise Scale
Mastercard — contactless payments, 10M+ users across Africa
2026
Present
Securonix — scaling SIEM platform to 2M+ TPS
Beyond Code
National Level Taekwondo Player
Multiple Gold Medals · Represented Maharashtra State
Indie-Rock Band Member
Guitarist & Vocalist · Hard Rock Cafe, Blue Frog
Product Builder at Heart
Love turning ideas into reality from scratch
// agent_runtime
agent.initializationrunning
▶Loading context store...
▶Connecting vector database [OK]
▶Initializing memory module...
▶System ready. Agents: 3 active
// 02. experience
Work Experience
Senior Software Engineer
Securonix · Cybersecurity | SIEM | UEBA Platform
Jan 2026 - Present · Remote
- ▹Scaling high-throughput SIEM platform from 1M to 2M+ TPS through system redesign and performance optimization
- ▹Built a fully local, cloud-parity dev environment for distributed systems, reducing developer setup and testing time
- ▹Designing next-gen alerting, tracing, and logging for large-scale security analytics
JavaSpring BootKafkaSparkHadoopHBaseRedisAWSKubernetes
// 03. projects
Featured Projects
Engineered a distributed Multi-Service Payment Wallet system using Java Spring Boot, Spring Security, Kafka, and Redis. Improved transaction processing efficiency by 20% (P95 latency: 200ms to 160ms) and reduced SMS notification latency by 30%.
20%
Latency Reduction
160ms
P95 Latency
JavaSpring BootKafkaRedisSpring Security
View projectBuilt a RAG-based document interaction tool using LangChain, Claude AI/OpenAI, and vector databases. Implemented semantic search with context-aware retrieval for natural language PDF querying with multi-document support.
Multi
Documents
Yes
OCR Support
PythonLangChainClaude AIOpenAIStreamlitVector DB
View projectCreated Perks from the ground up at TartanHq, successfully bringing in real customers within just 3 months. Implemented HRMS Connect to onboard 30,000 concurrent users.
$66K
Monthly Revenue
30K+
Users
JavaSpring BootRedisAWSMicroservices
View projectBuilt a comprehensive class management platform handling attendance tracking, notes distribution, and video content delivery. Initially hosted on Raspberry Pi with GitHub Actions CI/CD, later migrated to on-premise server with Google Cloud reverse proxy. Maximized open-source tools to minimize costs while maintaining production-grade reliability.
Minimal
Hosting Cost
Self-Hosted
Infrastructure
JavaSpring BootDockerRaspberry PiGitHub ActionsGCPNginx
View project// 04.5 ai_agent_pipeline · live_demo
Multi-Agent Issue Analyser
Picks a P1 ticket from Jira MCP, gathers context from code, logs, DB, S3 & SQS, then synthesises a root cause + fix with llama-3.3-70b via Groq. — running automatically ↓
Multi-AgentJira MCPRAG PipelineLoki CLIAWS SQS/S3Groq LLM
● Jira · production · us-east-1P1 · Critical
SCRUM-1234
Payment processing timeout — NullPointerException on checkout
Occurrences
847 in 30 min
Revenue Impact
~$24K revenue
Agent Pipeline Progress0/8 agents
// agent_runtime · stream
waiting for scroll…
// agent_runtime · 8 agents
Jira MCP Agent○ idle
Jira Cloud · MCP Server
Code Context Agent○ idle
GitHub · diff analysis
Loki Log Agent○ idle
Loki CLI · logql
DB Inspector Agent○ idle
PostgreSQL · metrics
S3 Config Agent○ idle
AWS S3 · config bucket
SQS Inspector Agent○ idle
AWS SQS · queue metrics
RAG Context Builder○ idle
Vector store · embeddings
LLM Analysis Agent○ idle
Groq · llama-3.3-70b
// architecture
Jira MCPContext AgentsRAG BuilderLLM AgentResolution
// 04. skills
Technical Skills
Languages
JavaPythonTypeScriptJavaScriptSQLBash
Backend & Frameworks
Spring BootSpring SecurityHibernateJUnitgRPCREST APIs
Cloud & DevOps
AWSGCPDockerKubernetesJenkinsCI/CDGitHub Actions
Databases
PostgreSQLMySQLRedisMongoDBDynamoDBHBase
Messaging & Streaming
Apache KafkaNats.ioAWS SQSEvent-Driven Architecture
Tools & Monitoring
GitSplunkDynatraceJIRASonarQubePostman
Currently building with
LLM APIs · RAG Pipelines · Multi-Agent Architecture · LangChain4j · Vector Databases · Platform Engineering · AI-powered Developer Tooling
// 05. testimonials
What People Say
Recommendations from colleagues and leaders I've had the privilege to work with.
“Pratik has an innate ability to analyze complex systems and identify optimal solutions. His insightful contributions have significantly enhanced the efficiency and effectiveness of our projects. He possesses a keen eye for identifying potential bottlenecks and takes a proactive approach to optimize performance. Furthermore, Pratik is an excellent team player who fosters a positive and inclusive work environment.”
MM
Manas Mallik
CTO & Director of Engineering · AI & Distributed Systems Leader | LLM Architect
“Pratik is an exceptional backend engineer with deep expertise in Java, Spring, and building scalable, reliable systems. What stands out most about Pratik is not just his technical strength, but his positive attitude and willingness to go the extra mile for the team. He is someone you can always count on - whether it's solving a complex problem, supporting teammates, or ensuring delivery quality.”
HS
Hiren Savalia
Team Lead HoAT Delivery
“Pratik is a highly skilled developer who consistently exceeded expectations. They are a quick learner, highly motivated, and always willing to take on new challenges. Their work ethic and attention to detail are unmatched, and they consistently produced high-quality work. Pratik was responsible for designing and developing the Batik platform from scratch with excellent problem-solving skills.”
JG
Jatin Garg
Senior Software Engineer
// 06. writing
Writing & Thoughts
Coming soon
From Monolith to Microservices: A Practical Migration Guide
A step-by-step approach to migrating legacy systems to microservices without disrupting business operations.
MicroservicesArchitectureBest Practices
Coming soon12 min read
Coming soon
RAG Systems: Building AI-Powered Document Intelligence
How I built TalkToPDF — a RAG-based tool for natural language document querying using LangChain and vector databases.
AI/MLLangChainRAG
Coming soon10 min read
// 07. contact
Let's Connect
Open to interesting conversations, collaborations, and opportunities.
Email
pratikvilasdesai@gmail.com
WhatsApp / Phone
+91-7588113838
Location
Pune, India
Open to opportunities