Staff Software Engineer · Bangalore, India

Prabhu
Nandan
Kumar

12+ years building large-scale distributed systems & AI-powered platforms

Node.js · 8+ yrs TypeScript GraphQL AWS LangChain · Agentic AI Kafka PostgreSQL
Get in Touch LinkedIn ↗
12+
Years Experience
90%
Assessment Time Saved (AI)
85%
Localization Effort Reduced
500K+
Active Accounts Served

Staff Engineer with deep expertise in event-driven microservices, cloud-native backends, and production-grade AI systems — including RAG pipelines, Agentic AI workflows, and real-time content platforms serving millions of users.

Technical Arsenal

What I Build With

Languages
TypeScript JavaScript PHP Go Python
Frameworks & Runtime
Node.js NestJS React.js Laravel
AI & ML
LangChain Agentic AI OpenAI Ollama RAG PGVector Tortoise TTS
APIs & Messaging
GraphQL REST APIs Kafka AWS SQS
Databases & Caching
PostgreSQL PGVector Redis
Cloud & DevOps
AWS S3/SQS/Lambda Docker Kubernetes CI/CD Serverless

Career Journey

Where I've Worked

May 2023 – Present
Pluralsight
Senior Software Engineer IV
  • Video Translation & Localization: Architected multi-language publishing pipeline reducing manual localization effort by ~85%; built Agentic AI orchestration with LangChain + Ollama and PGVector semantic search.
  • Assessment Auto-generation (RAG): Built RAG pipeline using LangChain + OpenAI and PGVector, accelerating time-to-market by up to 90% with autonomous generation, validation, and refinement.
  • Event-driven pipelines: Designed async pipelines with AWS S3, SQS, and Kafka, improving backend throughput by ~40%.
  • API governance: Defined GraphQL service contracts, schema evolution strategies, and backward-compatibility standards.
Nov 2021 – May 2023
Open Financial Technologies
Senior Software Engineer
  • Scaled backend services: Built secure Node.js / PHP services supporting 500K+ active accounts with modular boundaries.
  • Observability: Implemented structured logging and monitoring, cutting incident resolution time by 60% and MTTR by ~45%.
  • Performance: Improved average API response times by ~25% across core banking endpoints.
  • Delivered full-stack features maintaining 99.9% uptime SLA across payment and account modules.
Aug 2020 – Nov 2021
Tyfone Inc.
Senior Software Engineer
  • Developed digital banking features for 50+ US credit unions (200K+ end users) using Node.js, GraphQL, PHP, and React.js.
  • Performance tuning: Improved API throughput by ~35% via Redis caching and query refactoring, reducing P50 latency from ~450ms to ~290ms.
Jul 2019 – Aug 2020
Landmark Group
Software Developer (Manager)
  • Led development of high-traffic retail platforms serving millions of users across web and mobile.
  • Built React components and Node.js / GraphQL / PHP backend services.
  • Optimized DB queries and Redis caching, reducing API latency by ~30%.
Jun 2017 – Jul 2019
Mahindra First Choice
Module Lead
  • Directed a 3-engineer team; delivered 4 major releases on schedule with zero critical post-release defects.
  • Reduced notification delivery failures by ~40% and improved P95 latency by ~20%.
2012 – 2017
Modasta · Lets Corp / ECS
Senior → Software Engineer
  • Engineered real-time WebRTC tele-consultation backend with secure appointment workflows (Modasta Healthcare).
  • Built high-concurrency learning management and assessment platforms; improved page load times by 15% (Lets Corp).

Signature Work

Key Projects

2023 – Present

Agentic AI Assessment Engine

End-to-end Agentic AI pipeline that autonomously generates, validates, and refines technical assessments. Uses multi-step agent reasoning with tool-calling and self-correction loops to ensure questions align with learning objectives and difficulty tiers — reducing authoring time by 90%.

LangChain OpenAI PGVector NestJS PostgreSQL
2023 – Present

Multilingual Video Localization Engine

Scalable video translation and dubbing platform supporting multi-language publishing workflows. Integrates context-aware translation orchestration and semantic content reuse via PGVector, cutting manual localization effort by 85%. Built on async event-driven infrastructure with zero data loss.

LangChain Ollama PGVector Tortoise TTS Kafka AWS

Credentials

Certifications & Education

AWS
SAA
AWS Certified Solutions Architect
Associate · Amazon Web Services
PSM
I
Professional Scrum Master
PSM-1 · Scrum.org
M.
Tech
M.Tech, Information Technology
Bharathidasan University · 2012
MCA
Master of Computer Applications
Ranchi University · 2010

Let's Connect

Get in Touch

Open to senior/staff engineering roles and interesting distributed systems or AI challenges.

✉ pn0326@gmail.com 📞 +91-8088556442 LinkedIn ↗ GitHub ↗