Dharanitharan P DeveloperTharan

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`> Building the rails that move money.`

`whoami`

package main
typeEngineerstruct {
NamestringRolestringLocationstringSpeciality []stringCurrentWorkstringAvailabilitystring
}
funcmain() {
me:=Engineer{
Name: "Dharanitharan P",
Role: "Backend Engineer",
Location: "Bengaluru, Karnataka 🇮🇳",
Speciality: []string{
"Payment Orchestration",
"Distributed Systems",
"High-Throughput Pipelines",
"Fintech Infrastructure",
},
CurrentWork: "PayFin · ChitChaat @ Antique Network",
Availability: "Open to high-impact backend roles",
}
_=me
}

`$ cat /metrics/production`

🚀	📊 Metric	💬 Context
⚡	1000 TPS sustained	Payout orchestration engine
⏱️	< 1s API latency p95	Optimized internal services
📨	10,000+ events/sec	ChitChaat messaging backend
🏦	4 payment rails	IMPS · NEFT · RTGS · UPI
🔁	100× throughput	Payout system scaling
🔒	Zero race conditions	Redis distributed locking

`$ ls -la /experience`

📂 Antique Network Solutions — Backend EngineerFeb 2025 → Present

PayFin · Payout Infrastructure

✦ Architected multi-bank payout orchestration with cost-aware routing + automated failover
✦ Designed liquidity & prefunding engine — dynamic capital allocation using real-time signals ✦ Scaled throughput: 10 TPS → 1000 TPS (horizontal scaling + async pipelines + query optimization)
✦ Built concurrency-safe wallet with Redis distributed locking + PostgreSQL double-entry ledger
✦ Sliding-window rate limiter enforcing per-bank TPS contracts without upstream SLA breaches

PayFin · Pay-in Systems

✦ Scaled checkout to 200 TPS — async processing, parallelized bank calls, webhook optimization
✦ Unified abstraction layer across CUB, Axis, Jio (UPI + Cards + Netbanking)
✦ Payment routing engine with success-probability ranking across payment methods

ChitChaat · CPaaS Backend

✦ High-throughput messaging: 10K+ events/sec via Kafka + gRPC (SMS, WhatsApp, RCS)
✦ Provider failover + credit-based routing for reliable delivery under instability

GoGinJavaSpring BootKafkagRPCRedisPostgreSQL

📂 Indusspay / Primeindus Fintech — Software EngineerJan 2024 → Jan 2025

✦ Built UPI pay-in & payout APIs with idempotency guarantees + reconciliation hooks
✦ Designed webhook-driven event flows for real-time merchant state synchronization
✦ Retry & failover mechanisms with structured logging across payment callbacks
✦ Optimized API performance via indexing, connection reuse, and caching strategies

GoJavaPostgreSQLRedisREST APIs

`$ cat /stack/core`

Languages

Infrastructure & Data

Frameworks

`$ cat /architecture/principles`

# dharanitharan.yaml — Engineering Philosophycorrectness_over_cleverness:
rule: "Idempotency, reconciliation, and failure handling are non-negotiable guarantees."not: "Add-ons or nice-to-haves."measure_before_optimize:
rule: "Latency distributions and system metrics drive every performance decision."not: "Gut feeling or premature abstraction."design_for_failure:
rule: "Every system is built assuming downstream failures, retries, and partial success."not: "Happy-path only."patterns_used:
- Saga Orchestration
- CQRS
- Circuit Breaker
- Sliding-Window Rate Limiter
- Outbox Pattern
- Distributed Locking (Redis)
- Double-Entry Ledgering
- Dead Letter Queues

`$ git log --oneline /projects`

Project	Domain	Impact	Stack
PayFin Payout Engine	Payment Infra	1000 TPS · 4 rails · 0 SPOFs	Go · Redis · Kafka · PG
Pay-in Checkout	Payment Infra	200 TPS · 3+ acquirers	Go · Next.js · Redis
Wallet & Liquidity Engine	Payment Infra	Strict consistency · Auto-rebalance	Go · Redis · PG
ChitChaat CPaaS	Communication	10K msg/sec · 3 channels	Go · gRPC · Kafka
UPI Pay-in / Payout APIs	Payment Infra	Idempotent · Zero manual recon	Go · Java · PG
Transactional Messaging	Communication	Multi-provider failover · DLQ	Go · Kafka · Redis

`$ neofetch`

┌─────────────────────────────────────────────────────────┐
│ │
│ "I don't just write code. │
│ I engineer systems that move real money, │
│ stay correct under failure, │
│ and scale without apology." │
│ │
│ — Dharanitharan P │
└─────────────────────────────────────────────────────────┘

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