freiberufler Full Stack Developer | AI Developer | AI Agent Developer auf freelance.de

Full Stack Developer | AI Developer | AI Agent Developer

online
  • auf Anfrage
  • 422012 Mumbai
  • Weltweit
  • hi  |  en  |  de
  • 27.07.2026

Kurzvorstellung

Full Stack Developer & AI Agent Developer. 10+ shipped SaaS/AI products, from an award-winning carbon accounting platform to GDPR/HIPAA-compliant healthcare ERPs. Honest scoping, staying with clients from MVP to scale - most work with me 3+ years.

Qualifikationen

  • AI Agent
  • DevOps3 J.
  • Frontend Entwickler
  • Full Stack Developer3 J.
  • Kubernetes
  • Node.Js
  • React (JavaScript library)3 J.
  • Saas
  • Typescript1 J.
  • Web Entwicklung3 J.

Projekt‐ & Berufserfahrung

Full Stack Developer | AI Agent Developer
KAIH UG, Berlin
2/2025 – 11/2025 (10 Monate)
Gesundheitswesen
Tätigkeitszeitraum

2/2025 – 11/2025

Tätigkeitsbeschreibung

AI Healthcare SaaS for the German market, taken from specification to production in 8 months as the lead Full Stack Developer and AI Agent Developer. Built a GDPR and HIPAA-compliant platform with an AI-powered WhatsApp booking bot, role-based access, and admin dashboards. Stack: React, Node.js, TypeScript, AWS EKS, Docker, CI/CD pipelines.

Eingesetzte Qualifikationen

Docker, Node.Js, Typescript, Amazon Web Services (AWS), React (JavaScript library)

Ai Agent Developer
AI-Powered Voice Call Sales Agent, Personal
1/2025 – 2/2025 (2 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

1/2025 – 2/2025

Tätigkeitsbeschreibung

Case Study: AI-Powered Voice Call Sales Agent for Automated Lead Generation

Project: Voice Call AI Agent
Platform: GitHub Repo – AISalesAgent
Tech Stack: Twilio API, LiveKit, LangChain + LlamaIndex (RAG), ChatGPT, ElevenLabs, n8n, Google Sheets

Solutions
To automate outbound sales outreach and scale lead generation efforts, we developed a fully autonomous AI voice call agent capable of making personalized sales calls—without human intervention.

End-to-End Call Automation
We integrated Twilio’s programmable voice API with n8n workflows to fetch contact numbers from a Google Sheet and initiate sequential calls. This eliminated manual dialing and allowed real-time campaign control via a simple spreadsheet.

AI-Powered Sales Conversations
Using ChatGPT and RAG via LlamaIndex, we created a dynamic response engine capable of handling natural, conversational sales dialogues. The agent provides detailed product information, handles basic objections, and ensures a smooth lead engagement process.

Realistic Human Voice Synthesis
To enhance user experience and engagement, we used ElevenLabs for high-quality voice generation. The lifelike speech output increased trust and reduced drop-off rates during calls.

LiveKit Integration
We utilized LiveKit for audio routing and session management, ensuring low-latency performance and scalable infrastructure to support simultaneous call sessions.


Expected Results

3x Faster Outreach: Reduced time spent on manual calls by automating the entire outreach process.

80% Call Completion Rate: High engagement due to natural voice delivery and responsive AI logic.

Zero Manual Intervention: Fully automated pipeline from sheet to sales pitch, freeing up team resources for strategic tasks.

Cost-Efficient Scaling: Enabled outreach to hundreds of leads without increasing sales team headcount.
Free Consultation

Looking to supercharge your sales with AI-driven voice automation? We can help you build and deploy a fully customized voice call agent tailored to your business needs. ?‍?

Let’s bring your outbound strategy into the AI era—contact us today to get started. ?

Eingesetzte Qualifikationen

Generative KI, Langchain

ERP Web App Development (Contract)
CodeFormers / AccPal, Mumbai
2/2024 – 8/2024 (7 Monate)
IT & Entwicklung
Tätigkeitszeitraum

2/2024 – 8/2024

Tätigkeitsbeschreibung

Client- CA firm from SA.
• Developed and optimized an ERP web application tailored for a chartered accounting firm, handling the full lifecycle from inception to deployment.
• Key achievements include:

Legacy Code Optimization: Refactored and optimized the existing codebase, achieving a 50% improvement in app loading speed and reducing server response times by 60%.
Team Leadership: Led talent acquisition and collaborated with stakeholders to define requirements, ensuring timely and high-quality project delivery.
Deployment Infrastructure: Designed and managed Heroku-based environments for development, testing, and production, ensuring seamless CI/CD workflows.
End-to-End Development: Enhanced the front end using ReactJS and built backend operations in Node.js, delivering a polished and user-friendly portal.
Workflow Automation: Developed custom modules to streamline processes from lead generation to client onboarding, significantly improving operational efficiency.

Eingesetzte Qualifikationen

DevOps, Full Stack Developer, React (JavaScript library), Typescript

Full Stack Developer (Contract)
Carbon Accounting & Energy Management Platform, London
11/2022 – 2/2025 (2 Jahre, 4 Monate)
IT & Entwicklung
Tätigkeitszeitraum

11/2022 – 2/2025

Tätigkeitsbeschreibung

Build a platform from 0-1

•Designed and built the entire ecosystem for an energy management and carbon accounting platform from the ground up. This included full-stack development, infrastructure setup, and advanced analytics solutions.

•Key achievements include:
•Custom-Built Solutions: Migrated from off-the-shelf products to a tailored platform, reducing costs and increasing system efficiency.
•IoT Integration: Selected, tested, and integrated IoT sensors to enhance fault tolerance and improve performance, achieving a 60% reliability boost.
•Scalable Infrastructure: Designed a self-managed VPS architecture with Docker containers, database replicas, and backup systems to ensure robust operations.
•Advanced-Data Analytics: Built ETL pipelines to transition from NoSQL to columnar databases, cutting query times by 80%. Developed GHG dashboards adhering to ISO standards, enabling accurate carbon emission tracking.

•DevOps Expertise: Implemented monitoring systems and agile methodologies to enhance team productivity and ensure timely project delivery.

Case Study: Building a Carbon Accounting & Energy Management Platform from the Ground Up

Solutions
We designed and developed a fully customized Carbon Accounting & Energy Management platform from scratch. The project began with a clear mission: to empower businesses to make data-driven decisions in real-time to reduce energy costs and carbon emissions while streamlining reporting and compliance.

Full-Stack Development & Infrastructure Setup
We designed and developed the entire platform ecosystem, handling everything from frontend interfaces to backend logic and cloud-based infrastructure. To support scalability, we implemented a VPS architecture using Docker containers, database replicas, and automated backups. This ensured high availability, robust fault tolerance, and low latency performance for real-time energy data processing.

Custom-Built vs Off-the-Shelf
Instead of relying on generic third-party tools, the client wanted a custom solution. We developed a tailored platform that replaced off-the-shelf solutions. This shift improved system efficiency and lowered operational costs, giving the client full control over customization, security, and future enhancements.

IoT Integration for Real-Time Monitoring
We selected and integrated reliable IoT sensors across the client’s energy systems to collect real-time data on consumption and equipment performance. This integration not only enhanced fault detection and reduced downtime but also increased reliability.

Advanced-Data Analytics & ETL Pipelines
We implemented ETL pipelines to transition from a NoSQL architecture to a columnar database optimized for analytical queries. This resulted in an 80% improvement in query performance. Custom GHG dashboards were also built to visualize emissions in compliance with ISO standards, allowing the client to track Scope 1, 2, and 3 emissions with ease.

DevOps & Agile Methodology
To ensure continuous delivery and system stability, we integrated DevOps best practices, including CI/CD pipelines, container orchestration, and system monitoring. Agile workflows kept the team on track, enabled rapid iteration, and ensured on-time delivery within just six weeks.
Free Consultation

We can help. From custom platform development to real-time analytics and emissions tracking, we deliver results that matter—both financially and environmentally.

Let’s work together to build your carbon accounting and energy management system from the ground up.
Contact us today to schedule a free consultation or demo.

Eingesetzte Qualifikationen

Database Developer, Full Stack Developer, Python, React (JavaScript library)

Web Developer | Product Development Lead | CONVO PORTAL LTD
CONVO PORTAL LTD, Remote
11/2022 – 8/2023 (10 Monate)
Dienstleistungsbranche
Tätigkeitszeitraum

11/2022 – 8/2023

Tätigkeitsbeschreibung

Omni Channel Chat Platform.
• Work with the founding team to choose the technology stack and hire talent for successful project delivery.
• Architecture and Developed the authentication and RBAC system and chat platform.
• Developed backend systems for Portal Authentication, RBAC, and a Support Ticket system, integrating social media platforms & mail platforms via APIs and webhooks using NodeJS and TypeScript.
• Led the development of the frontend portal, using ReactJS, Typescript, MUI, and TailwindsCss to deliver a dynamic and user-friendly experience.
• Managed the development team to deliver the SaaS portal on time and within scope.
• Tech Stack Used- ReactJs, NodeJs, MongoDB, Nginx, API Management, Gitlab CI.

Eingesetzte Qualifikationen

DevOps, Full Stack Developer

Full Stack Developer (Contract)
Lnk technologies, London
11/2022 – offen (3 Jahre, 9 Monate)
IT & Entwicklung
Tätigkeitszeitraum

11/2022 – offen

Tätigkeitsbeschreibung

• Build a platform from 0-1
• I designed and built the entire ecosystem for an energy management and carbon accounting platform from the ground up. This included full-stack development, infrastructure setup, and advanced analytics solutions.

•Key achievements include:
1. Custom-Built Solutions: Migrated from off-the-shelf products to a tailored platform, reducing costs and increasing system efficiency,
2. IoT Integration,
3. Scalable Infrastructure,
4. Advanced-Data Analytics.

•DevOps Expertise

Eingesetzte Qualifikationen

DevOps, Full Stack Developer, React (JavaScript library), Web Entwicklung

Full Stack Developer | DevOps
Kootumb MultiMedia Pvt Ltd, Mumbai
10/2022 – 3/2023 (6 Monate)
Medienbranche
Tätigkeitszeitraum

10/2022 – 3/2023

Tätigkeitsbeschreibung

Improved app loading speed 20% and server response times 30%. Migrated media storage to AWS S3 (40% faster compression, 50% less storage). Enhanced UI and deployed on AWS with Docker, Terraform and Ansible.

Eingesetzte Qualifikationen

Docker, Ansible, Infrastrukturarchitektur, Amazon Web Services (AWS)

Ausbildung

Kubernetes Developer (CKAD)
Ausbildung
KodeKloud
2025
Certified DevOps
Ausbildung
Tech World with Nana
2023
Bachelor of Engineering (BEng), Information Technology
Savitribai Phule Pune University
2022
India
Mern Front to back
Ausbildung
Udemy
2022

Über mich

10+ shipped products (from SaaS platforms and internal ops tools to AI agents) taught me one thing: you're buying the moment your product goes live and starts handling real users, even while you sleep.

"Very knowledgeable in cloud computing, IoT sensors integration, web and app development, AI development. We have used his services over the past 3 years and continue to value the quality." - Audrey Ross, Director, Lnk Technologies

Most builds die the same way: abandoned halfway, overengineered, or built on the wrong stack. I prevent that with honest scoping, working architecture early, and staying with you from MVP to scale. Most of my clients work with me for 3+ years.

SaaS & AI Projects I've Delivered:
- Award-winning carbon accounting SaaS: Innovative Product of the Year, Isle of Man (Next.js, TypeScript, IoT)
- AI healthcare ERP with WhatsApp AI bot, GDPR & HIPAA compliant (Germany): Specs-to-Production in 8 months.
- Multi-agent AI systems on LangGraph + MCP: Energy data pipeline, audit-firm automation
- AI voice sales agent for a European SaaS: LiveKit, LlamaIndex, ElevenLabs, n8n (automated outbound calls)
- AI agent for a property investment & resale company: Time Saved From 2 hours to ~2 minutes
- ETL pipeline, MongoDB to ClickHouse: Query times cut by 90%
- Internal ops platforms for a chartered accountancy firm and a fitness chain: Full audit readiness, 90% Less Data Entry Time

STACK or ROLES I TAKE ON:
- AI Agent Developer / AI Automation Developer: LangChain, LangGraph, LlamaIndex, RAG, MCP, n8n, OpenAI SDK, Claude SDK
- AI Chatbot Developer: RAG chatbots grounded in your documents, WhatsApp bots, AI voice agents
- Full Stack Developer / React Developer / Next.js Developer: React, Next.js, Node.js, TypeScript
- SaaS Developer / MVP Developer: multi-tenant architecture, Stripe subscription billing, role-based access, admin dashboards
- Backend & DevOps: Python, FastAPI, PostgreSQL, MongoDB, Redis, ClickHouse, AWS (ECS, EKS, Lambda), Kubernetes, Docker, Terraform, CI/CD

Message me with what you're building - one paragraph is enough for an honest read on scope, timeline, and fit.

Weitere Kenntnisse

Core skills: React, Node.js, Next.js, TypeScript, Python
SaaS & Full-Stack Development
Cloud & DevOps: Amazon Web Services, Kubernetes, Docker, Terraform, Ansible, CI/CD
Data: PostgreSQL, MongoDB
Backend: FastAPI
AI: AI Agent Development, LangChain, AI App Development

Persönliche Daten

Sprache
  • Hindi (Muttersprache)
  • Englisch (Fließend)
  • Deutsch (Grundkenntnisse)
Reisebereitschaft
Weltweit
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Home-Office
bevorzugt
Profilaufrufe
336
Alter
26
Berufserfahrung
4 Jahre und 2 Monate (seit 05/2022)

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