Raj Pattnaik

Raj Pattnaik

SDE-1 @ DMG

Backend & AI Engineer building resilient, scalable systems.

Backend

Engineer

I build resilient backends and AI-integrated systems — built to ship and hold up under load.

Notable companies I've worked for

Kiwi

Kiwi

$43M · 3M users

DMG

DMG

$1B val · $300M rev · INC5000

About

Me

I build production-grade backends with FastAPI, Spring and Node.js — equally comfortable architecting monoliths or event-driven micro-services that stay fast under load.

Deep in the AI / LLM space — shipping MCPs, toying with Claude skills, integrating Langfuse for AI observability, and orchestrating reliable workflows with Temporal and Airflow.

Wired for performance & reliability — I instrument everything with Datadog, SigNoz, and Grafana, containerise with Docker, orchestrate with Kubernetes, and ship to AWS with CI/CD baked in.

Stack

& Tools

Python

Python

Primary Language

FastAPI

API Framework

Spring

Java Framework

Redis

In-Memory Store

TypeScript

Typed JavaScript

MongoDB

NoSQL Database

AWS

Cloud Platform

Claude

AI / LLM

Docker

Containerisation

Kubernetes

Container Orchestration

Datadog

Observability

Kafka

Event Streaming

Work

Experience

Divisions Maintenance Group

Software Developer Engineer-1

  • Implemented job invite and photo upload pipelines using Temporal, orchestrating media ingestion, validation, and processing with reliable retries, idempotency, and full workflow traceability via Temporal UI.
  • Designed an analytics pipeline that pulls mobile app performance data from Datadog APIs, processes 240+ hourly data points across multiple key widgets, and delivers insights to Snowflake and MongoDB.
  • Integrated Langfuse to monitor LLM activity, capturing prompt flows, model latency, and errors to improve visibility into AI performance and optimize reliability and cost.
  • Improved data collection speed from 1.5hrs to 20 mins adding connection pooling, intelligent retries, and pagination — achieving 100% accuracy in production monitoring.
PythonNode.jsDatadogSentryMicroservicesLangfuseTemporal

Sept 2025 — Present

Kiwi

Backend Engineer Intern

  • Worked on 4 Spring Boot microservices (card-provisioning, vault, Yes Bank adapter, polling) refactored into onboarding core following various design principles.
  • Built an Airflow DAG that automatically retries failed LOS pushes for YES Bank users by pulling recent KYC-approved applications, validating backend sync issues, and invoking the LOS push API for recovery.
  • Reduced Signoz logging cost by 40% by caching multiple states of VKYC and optimized log streaming by setting various severity levels for the logs.
  • Integrated Meta CAPI to restore iOS conversion tracking, increasing attribution coverage by 28% after iOS 14.5 privacy updates.
JavaSpringRedisSigNozAWSAirflow

Jan 2025 — Jun 2025

NeuralSpace.ai

NeuralSpace.ai

Full-Stack Engineer Intern

Full-stack development on the LocAI platform — AI subtitle generation from video. Cut front-end build time by 85% through dependency pruning, lazy loading, and caching.

ReactNode.jsRedisNATSDocker

Jun 2024 — Aug 2024

Hyperspec.ai

Hyperspec.ai

Developer Intern

Built high-performance backend services for the Hyperlite sensor pipeline and delivered a real-time web HMI for device control and data visualisation.

PythonNode.jsAWSDocker

Sept 2023 — Apr 2024

I‑Hub DivyaSampark

I‑Hub DivyaSampark

UG Intern

Built a vehicle speed detection prototype and ANPR-based number plate recognition system for centralized traffic monitoring.

Computer VisionANPRIoT

Oct 2022 — Aug 2023

Recent

Projects