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Software Engineer · AI Systems · AWS

2 years building production-grade backend systems at AI startups — serverless AWS, real-time voice AI, and event-driven pipelines. I live in the backend but work across the stack.

View my work Get in touch
PK
SDE-1 @OneBitShift · 2025

Selected work

Things I've shipped

01
Live
01 · FEATUREDGitHub ↗

Flash Hiring

Real-time conversational AI interview platform with two-way voice interaction. Dynamically generates contextual follow-up questions and produces automated post-interview reports with hiring recommendations.

Node.jsTypeScriptNext.jsAWS ServerlessVertex AIOpenAI Voice
02↗

DocuQuery

Serverless RAG-based knowledge retrieval system. Event-driven AWS architecture with Cognito auth and CI/CD pipelines.

RAGLambdaEventBridge
02
03
03↗

NavAI

Traffic-aware navigation using real-time congestion data. MapMyIndia APIs with OpenStreetMap and heatmap-based route optimisation.

PythonMapMyIndiaOpenStreetMap

Career

Where I've worked

A timeline of roles where I've built real things — from AI interview platforms to RAG systems and legacy modernisation.

0 / 4 roles

Feb 2025 → Present
Software Development Engineer I
OneBitShift Logics · Greater Noida
Designed and deployed AWS-based backend services supporting scalable APIs from dev to production. Built event-driven workflows for real-time data streams and integrated voice AI for live transcription and automated candidate insights on FlashHiring.
TypeScriptNode.jsAWS ECSFargateSNSEventBridge
Aug 2024 → Feb 2025
Freelance Software Developer
Independent · Remote
Built a document query system using RAG architecture. Designed event-driven data pipelines on AWS Lambda + EventBridge. Developed a traffic-aware navigation system using real-time APIs and OpenStreetMap.
PythonFastAPIAWS LambdaRAG
Jun 2023 → Aug 2023
Backend Software Engineer Intern
Digital Heroes · Remote
Modernised legacy backend systems improving performance and response times. Refactored monolithic codebase into modular components in Linux environments.
PythonDjangoLinuxPostgreSQL
Aug 2020 → Jul 2024
B.Tech · Computer Science
NIET · Greater Noida · CGPA 7.78
Coursework in Data Science, Machine Learning, AI, Cloud Technologies, and Statistical Methods. Published two research papers during final year.
ML / AIData ScienceAWSResearch

Toolkit

What I work with

Languages
Core languages
PythonTypeScriptJavaScriptJavaSQLBash
Cloud · AWS
Infrastructure
LambdaECS · FargateS3DynamoDBCognitoSNSEventBridge
Backend & APIs
Server-side
Node.jsFastAPIExpress.jsDjangoREST APIsNext.js
AI / ML
Intelligence layer
RAG ArchitectureGemini APIOpenAI VoicePyTorchTensorFlowScikit-learnPandas
Databases
Data stores
PostgreSQLDynamoDBMongoDB
DevOps
CI/CD & tooling
CI/CDGitDockerLinuxGitHub Actions

Writing

From the blog

Deep-dives on the systems I've built — technical decisions, tradeoffs, and lessons from shipping real products.

AWS · Voice AI
Building a real-time voice interview platform on AWS serverless
How FlashHiring handles live two-way audio, dynamic question generation, and post-interview report automation — all on Lambda and EventBridge.
Coming soon
RAG · Architecture
RAG on a budget: DocuQuery with Lambda + EventBridge
Why I chose a serverless RAG approach over a managed vector database, and the tradeoffs at low cost.
Coming soon
Backend · Lessons
From monolith to event-driven: what I learned at my first startup
The shift in thinking from request-response to events. What breaks, what gets better, what nobody tells you upfront.
Coming soon

Research

Published work

2024
SecureLink Using P2P WebRTC
International Journal of Research and Analytical Reviews · pp. 1479–1495
2024
Designing a Model for Suicidal Behavior Detection
13th ISRD International Conference · Jamia Hamdard, New Delhi

Credentials

Certifications & courses

View all certifications
Coursera, AWS, and other platforms
Machine Learning
Coursera
Machine Learning — Coursera
Deep Learning
Coursera
Deep Learning — Coursera
AWS Cloud
Practitioner
AWS Cloud Practitioner
Python for
Data Science
Python for Data Science
Neural Networks
& Deep Learning
Neural Networks & Deep Learning

Contact

Let's build something
together

Open to full-time backend or full-stack roles. Drop a line or connect on LinkedIn.

prateekasme@gmail.com
↗ LinkedIn ↗ GitHub ↗ prateek271.me ↗ +91 995 819 5508