Software Engineer

Open to opportunities

Hi, I'm Manoj

I build production

Generative AI & Backend · AWS & Azure Certified

Hyderabad, India

8+Systems deployed
9+Projects
5Certifications
3+Years exp.
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About Me

Software Engineer with 3+ years of experience building production-grade Generative AI systems, backend platforms, and cloud-native applications using Python. Hands-on with Flask, FastAPI, LangGraph, LangChain, and Spring Boot across PostgreSQL, AWS, Azure, and React.

Experienced in owning features end-to-end — from RAG pipelines and agentic workflows to real-time voice AI, API design, deployment, and production support. AWS Certified Cloud Practitioner and Microsoft Azure Developer Associate.

Engineering Practices

  • ▹Clean, maintainable code
  • ▹Modular architecture
  • ▹Separation of concerns
  • ▹Config-driven systems
  • ▹Defensive programming
  • ▹Cost-aware AI design
  • ▹Logging & debugging

Career Interests

  • ▹Backend / Platform Engineering
  • ▹AI & Voice Systems
  • ▹Cloud-native applications
  • ▹Full-stack product development

Tech Stack

LangGraph
LangChain
LlamaIndex
Celery
Valkey
ChromaDB
pgvector
Vector DB
RAG
Agentic Workflows
Spring Framework
Material UI
PrimeReact
Typescript
Oracle DB
MongoDB
Python
Flask
OpenAI
Gemini
LiveKit
Deepgram
Twilio
Pusher
AWS
Azure
Apache Airflow
Nginx
LangGraph
LangChain
LlamaIndex
Celery
Valkey
ChromaDB
pgvector
Vector DB
RAG
Agentic Workflows
Spring Framework
Material UI
PrimeReact
Typescript
Oracle DB
MongoDB
Python
Flask
OpenAI
Gemini
LiveKit
Deepgram
Twilio
Pusher
AWS
Azure
Apache Airflow
Nginx
LangGraph
LangChain
LlamaIndex
Celery
Valkey
ChromaDB
pgvector
Vector DB
RAG
Agentic Workflows
Spring Framework
Material UI
PrimeReact
Typescript
Oracle DB
MongoDB
Python
Flask
OpenAI
Gemini
LiveKit
Deepgram
Twilio
Pusher
AWS
Azure
Apache Airflow
Nginx
Vercel
Docker
Docker Compose
Git
Redis
Django
FastAPI
Java
Spring Boot
Hibernate
JavaScript
React
Angular
Tailwind CSS
Recharts
HTML5
CSS3
Bootstrap
PostgreSQL
MySQL
SQLite
SQLAlchemy
Elasticsearch
REST API
JWT
SFTP
Chrome Extension
Web Performance
Vercel
Docker
Docker Compose
Git
Redis
Django
FastAPI
Java
Spring Boot
Hibernate
JavaScript
React
Angular
Tailwind CSS
Recharts
HTML5
CSS3
Bootstrap
PostgreSQL
MySQL
SQLite
SQLAlchemy
Elasticsearch
REST API
JWT
SFTP
Chrome Extension
Web Performance
Vercel
Docker
Docker Compose
Git
Redis
Django
FastAPI
Java
Spring Boot
Hibernate
JavaScript
React
Angular
Tailwind CSS
Recharts
HTML5
CSS3
Bootstrap
PostgreSQL
MySQL
SQLite
SQLAlchemy
Elasticsearch
REST API
JWT
SFTP
Chrome Extension
Web Performance

Skills & Expertise

Expertise in crafting modular backend systems, real-time AI agents, and high-performance cloud architectures.

💻

Programming Languages

PythonJavaScript (ES6+)JavaSQLBashTypescript
⚙️

Backend Engineering

FlaskFastAPISpring BootSpring FrameworkHibernateREST API designJWT AuthModular monolithAsync workflowsBlueprints architecture
🎨

Frontend

React (Vite)Tailwind CSSAngularBootstrapMaterial UIPrimeNGPrimeReactRechartsHTML5 / CSS3AxiosAdmin dashboards
🗄️

Databases & Search

PostgreSQLMySQLOracle DBMongoDBSQLiteSQLAlchemy ORMElasticsearchVector DBChromaDBpgvectorSchema designQuery optimization
☁️

Cloud & Infrastructure

AWS S3AWS IAMAzure (Certified)Ubuntu VPSVercelNginxDocker
🤖

AI, Voice & Real-Time

LiveKitOpenAI APIGemini APIDeepgram (STT)Twilio SIPTTS / STT pipelinesLangGraphLangChainLlamaIndexAgentic workflowsState graph designCelery task queuesValkey brokerRAG pipelinesEmbeddingsLLM function tools
📡

Real-Time & Messaging

PusherEvent-based notificationsLive dashboardsWebSockets
📅

Scheduling & Data

Apache AirflowDAG schedulingSFTP integrationsManaged File Transfer

Professional Experience

Building enterprise systems and AI-powered platforms.

Software Engineer

VKRAFT Software Services Pvt Ltd

Hyderabad, Telangana, India

January 2024 – Present

  • ▹Worked on multiple in-house products focused on cloud automation, AI-assisted communication, and scalable backend APIs
  • ▹Dwani AI – Shipped production voice-agent backend on AWS (LiveKit, Twilio, OpenAI) for 24/7 automated customer calls, transcripts, and per-call cost visibility
  • ▹HospitalMetrics & MFT Automation – Developed healthcare analytics backend with Flask + Elasticsearch and automated file transfer pipelines using Airflow + S3
  • ▹Dynamic Flask Module Loader – Designed plugin-style backend architecture enabling on-demand module import/export via REST APIs

Freelancer Software Engineer

Freelance

April 2023 – October 2023 (7 months)

  • ▹Built and launched the BA Global Ventures (baglobalventures.com) B2B import/export spices website for export client credibility and lead generation
  • ▹Built the Apex Amigo Industries (apexamigo.in) website for industrial plant maintenance, spare parts supply, and service inquiries
  • ▹Delivered custom backend and full-stack solutions for small businesses using Flask, Spring Boot, and React
  • ▹Developed lightweight inventory, booking, and billing applications with PostgreSQL and REST APIs
  • ▹Assisted with AWS deployment and maintenance, including S3 and EC2 setup

Software Engineer

Acute Learning

Bengaluru, Karnataka, India

June 2022 – March 2023 (10 months)

  • ▹Developed interactive e-books and automated content conversion workflows using Python, HTML5, and JavaScript
  • ▹Managed MySQL databases and integrated APIs for seamless data retrieval and interaction
  • ▹Built and maintained software solutions across Java, Python, and JavaScript projects

Internship Trainee

SEED Infotech Ltd

Pune, Maharashtra, India

January 2022 – May 2022 (5 months)

  • ▹Built web applications using Java, Spring Boot, and Hibernate
  • ▹Developed front-end interfaces with Angular, HTML, CSS, and Bootstrap
  • ▹Managed MySQL databases and integrated third-party APIs to enhance application functionality

Featured Projects

End-to-end ownership from database design to deployment - healthcare, AI voice, invoicing, and more.

Professional work reflects my contributions; descriptions are simplified for portfolio purposes.

Filter by tech:

🤝 Client & Freelance Work

BA Global Ventures

Visit

Business website for a B2B import/export spices company — credible digital presence for international buyers.

  • •Designed site structure and product presentation for export audiences
  • •Built responsive pages with contact and inquiry flows
  • •Laid SEO foundations; ongoing refresh for stronger search visibility
ReactViteTailwind CSS

Apex Amigo Industries

Visit

Business website for an industrial service partner — plant maintenance, breakdown response, and spare parts supply across Maharashtra.

  • •Structured services, products, and industries for B2B plant audiences
  • •Built contact and service-request flows for maintenance inquiries
  • •Presented company mission, capabilities, and founder story for client trust
ReactViteTailwind CSS

💼 Professional Work

Dwani AI

Visit

VKRAFT's enterprise voice AI platform — automated phone and chat agents for customer support, healthcare, and B2B clients.

  • •Delivered production APIs powering Dwani AI voice agents — 24/7 automated calls that replace manual support queues for enterprise clients
  • •Integrated LiveKit and Twilio SIP for real-time, two-way phone conversations with natural speech-to-text and text-to-speech pipelines
  • •Built call recordings, transcripts, and per-call AI cost tracking — giving clients full audit trails and spend visibility on every conversation
LiveKitTwilioOpenAIAWS S3

AI Customer Support Agent

Production-grade agentic system for automated customer support ticket processing using LangGraph state machines.

  • •Designed cyclic state graph for ticket classification, routing, and resolution
  • •Built containerized Python worker with Celery + Valkey broker
  • •Persisted agent checkpointer state in PostgreSQL for resumable workflows
LangGraphCeleryValkeyPostgreSQLDocker

Healthcare Analytics Platform

Analytics platform for tracking patient journeys and hospital operational metrics.

  • •Developed backend APIs using Flask
  • •Designed and optimized PostgreSQL data models
  • •Integrated Elasticsearch for analytics and fast querying
FlaskPostgreSQLElasticsearchPusherReact

Hospital Management System

End-to-end hospital management platform aligned with NABH accreditation and maturity stages.

  • •Designed PostgreSQL database schemas for complete hospital operations
  • •Built Flask-based backend APIs for OPD, IPD, appointments, admissions, discharge, billing
  • •Implemented end-to-end backend workflows and validations
FlaskPostgreSQLSQLAlchemy

Enterprise Invoicing Platform

Invoicing system for managing invoices and billing workflows.

  • •Developed REST APIs for invoice creation, validation, and lifecycle management
  • •Implemented invoice status tracking and audit logic
  • •Designed database schemas for invoices and transactions
FlaskPostgreSQLSQLAlchemy

Managed File Transfer (MFT)

Scheduled file workflows and cloud sync.

  • •Built DAGs for SFTP and cloud sync
  • •Scheduled and monitored file workflows
  • •Used AWS S3 and Azure storage
Apache AirflowAWS S3Azure

Analytics Dashboard

Call metrics visualization and agent performance tracking.

  • •Call metrics visualization
  • •Agent performance tracking
  • •React + Recharts
ReactRecharts

🛠️ Personal & Side Projects

MyTools Platform

Visit
In Progress

A comprehensive suite of utility tools like JSON Linter, Password Generator, and MD Viewer, sharing a consistent Cyberpunk theme.

  • •Designed and implemented a unified utility platform
  • •Created a consistent design system with Hyperspeed background
  • •Developed custom interactive cursor modes for enhanced UX
ReactViteTailwind CSSCanvas API

S3 File Explorer

Secure file upload/download system with multi-credential AWS support.

  • •Secure file upload/download system
  • •Multi-credential AWS support
  • •React frontend + Tailwind
FastAPIReactTailwind CSSAWS S3

Modular Flask Backend Framework

Plug-and-play backend features with dynamic module loading.

  • •ZIP-based module architecture
  • •Dynamic imports and Blueprint registration
  • •Plug-and-play backend features
FlaskPython

SleepSlapper

Visit

Python tray application to prevent system sleep.

  • •Python tray application
  • •Prevents system sleep
  • •GitHub Gist-based update checks
Python

Chat DOM Optimizer

Visit

Chrome/Brave extension that virtualizes long ChatGPT and Claude threads so only messages near the viewport stay fully rendered—lighter scrolling and less browser work.

  • •Virtualized message list similar to long feeds on social apps
  • •Off-screen content stays lightweight until you scroll to it
  • •Open source; no tracking, ads, or data collection
JavaScriptChrome ExtensionWeb Performance

🔦 Selected outcomes

Deep dives into problem, solution, and outcome.

Dwani AI

Problem

Enterprises needed scalable AI voice agents for customer support — reliable phone calling, conversation records, and controlled AI spend.

Solution

Built production Flask APIs integrating LiveKit, Twilio SIP, and OpenAI; stored transcripts and recordings on AWS S3 with per-call cost tracking.

Outcome

Live voice agents for client demos and deployments; audit-ready call history; transparent AI usage costs per conversation.

Healthcare Analytics Platform

Problem

Hospitals needed real-time visibility into OPD, appointments, and department metrics without page refresh.

Solution

Built Flask backend with Elasticsearch for fast analytics, Pusher for real-time push updates, and React dashboards.

Outcome

Live dashboards with sub-second updates; reduced manual reporting; supported on-premise deployments.

Testimonials

What clients and collaborators have said about working with me.

"Manoj delivered a clean, professional web presence for our export business and understood our B2B audience. Communication was clear and the site gave us a credible foundation while we expand our digital presence."

— Founder, BA Global Ventures · Import/Export Spices

"Manoj built a clear, professional website that presents our services and makes it easy for plant teams to reach us. The site reflects how we work — direct, responsive, and focused on industrial clients."

— Director, Apex Amigo Industries

Credentials

Education and industry-recognized credentials in cloud and software development.

Education

Master of Computer Science

Dr. Babasaheb Ambedkar Marathwada University

Aurangabad

Year of Completion: 2019 – 2021

Certifications

AWS

AWS Certified Cloud Practitioner

Verify credential→

Azure

Microsoft Certified: Azure AI Fundamentals

Verify credential→

Azure

Microsoft Certified: Azure Developer Associate

Verify credential→

Azure

Microsoft Certified: Azure Fundamentals

Verify credential→

Java

Capgemini Certification Program in Java Full Stack

Verify credential→

Open Source

Projects and contributions on GitHub.

SleepSlapper

Python tray app to prevent system sleep

→

Modular Flask Framework

ZIP-based pluggable backend modules

→

Chat DOM Optimizer

Browser extension that virtualizes long AI chat threads for smoother performance

→

Awards & Recognition

🏆
Spot Award- Vkraft (2024)
🏆
POC Excellence- Team Recognition (2024)

Get in Touch

Let's build something remarkable together! I'm passionate about backend magic, AI adventures, and architecting solutions in the cloud. Whether you want to brainstorm, collaborate, or just chat tech, drop me a message and let's make it happen!

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