Lead Software Engineer · Delhi NCR, India
Prashant Prajapati
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Building distributed systems that scale to millions. Architect of high-throughput pipelines that cut costs and redefined reliability at Samsung R&D Institute India · Delhi.
$0
Annual Cost Savings
0x
Faster Indexing
0
Years Experience
$0
Monthly Infra Saved
0x
Scale Increase
Profile
Who I Am
name: "Prashant Prajapati"
role: "Lead Software Engineer"
company: "Samsung R&D Institute India · Delhi"
location: "Delhi NCR, India"
education: "B.Tech CSE, IIIT Vadodara"
expertise:
- "Distributed Systems"
- "High-Throughput Pipelines"
- "Cloud Architecture (AWS)"
- "System Design & Concurrency"
open_to: "SDE-2 / Lead Engineer Roles"
# NCR Region: Noida / Gurugram / Delhi
Architect-Level Thinking
Redesigned distributed indexing pipelines from ground up — replacing lock contention with lock-free architectures, cutting server count by 33%.
Performance Obsessed
Achieved 18x reduction in content indexing time (90 min → 5 min) and scaled capacity from 500 → 7,000 hours of indexed content.
Cloud-Native Migrations
Led serverless migration (Lambda + ALB + SQS) that decommissioned 18 EC2 instances, saving $10K/month with zero downtime.
AI Pipeline Engineering
Built end-to-end AI data pipelines integrating GPU inference, S3 storage, and multi-API orchestration — eliminating 100% manual effort.
Career
Experience
Mar 2026 – Present
Lead Software Engineer
Samsung R&D Institute India · Delhi
- Leading re-architecture of distributed VOD & CC indexing pipelines with Kafka, ZooKeeper, S3 snapshot strategies
- Designing slave synchronization with partition offset embedding for zero-drift bootstrap
- Driving Spring Boot + JNI C++ integration with Thrift RPC and TBB concurrency fixes
- Mentoring engineers and establishing distributed systems design patterns for the team
Jul 2022 – Feb 2026
Software Engineer
Samsung R&D Institute India · Delhi
- Eliminated read/write locks → lock-free concurrent architecture, saving $1M+ annually
- Scaled indexed content from 500 → 7,000 hours (14x); reduced indexing time 90 min → 5 min (18x)
- Migrated EPG REST server to AWS Lambda + ALB + SQS, saving $10K/month, decommissioning 18 EC2s
- Built AI Context Generation Pipeline with GPU inference, 4 third-party API integrations, and Spring Boot REST layer
- Modernized 4 modules from Java 8 → Java 17 with zero-downtime rollout
- Discovered & patched critical S3 race condition in production pipeline
Work
What I've Built
Distributed Systems
Lock-Free Content Indexing Platform
Redesigned the core distributed indexing engine, replacing blocking lock patterns with a concurrent, lock-free architecture. Scaled content capacity 14x and slashed indexing latency by 18x.
$1M+
Annual Savings
18x
Faster
33%
Fewer Servers
Cloud / Serverless
Serverless EPG Infrastructure Migration
Architected and executed migration of EPG REST server from EC2-based deployment to fully serverless stack (AWS Lambda + ALB + SQS). Decommissioned 18 EC2 instances with zero downtime.
$10K
Saved/Month
18
EC2s Removed
0
Downtime
AI / ML
AI Context Generation Pipeline
End-to-end pipeline: video ingestion → frame extraction → GPU inference → S3 storage. Integrated 4 third-party APIs, built Spring Boot REST layer, eliminating 100% of manual data preparation effort.
4
APIs Integrated
100%
Manual Effort Removed
GPU
Inference at Scale
Platform
Distributed Kafka-Based Sync Architecture
Re-architecting VOD/CC indexing with Kafka (frames-insert/delete topics), ZooKeeper 3-state ephemeral node model for swap coordination, S3 snapshots with embedded partition offsets for zero-drift slave bootstrap.
N
Partitions Keyed
3-State
ZK Coordination
0
Slave Drift
Arsenal
Tech Stack
Core Languages
Java 17C++
PythonBashSQL
Backend
Spring BootHibernate
JPAThrift RPCFlask
Distributed
KafkaZooKeeper
RedisJNI (C++)TBB
AWS Cloud
LambdaS3
SQSSNS
ECSRDSCloudWatch
DevOps
DockerLinux
CI/CDPrometheus
GrafanaNagios
Databases
MySQLPostgreSQL
Redis
Proficiency
Architecture Concepts
Microservices
Event-Driven
Lock-Free Design
Distributed
Serverless
High Throughput
System Design
Concurrency
Cost Optim.
Recognition
Awards
Service S/W Lab Award
Samsung R&D Institute India · Delhi
SPOT Award × 3
Samsung R&D Institute India · Delhi
B.Tech CSE
IIIT Vadodara · 2022
$1M+ Cost Impact
Lock-Free Architecture
Let's Connect
Open to SDE-2 & Lead Roles
Actively looking for high-impact engineering roles in the Delhi NCR region (Noida · Gurugram · Delhi), Pune, Bengaluru, Hyderabad. Let's build something exceptional.