Full Stack Developer | DevOps Engineer | AI Agent Development

1/2025 – 2/2025

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. ?

Generative KI, Langchain

2/2024 – 8/2024

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.

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

11/2022 – 2/2025

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.

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