Software Engineer —
Backend, APIs, Cloud & AI
Lead Backend Engineer · Pentagon AI
I architect scalable SaaS backends, integrate AI systems, and ship production-ready APIs that power real businesses. 3+ years building high-performance systems for startups and enterprise clients.
Ahmed Khawar
Lahore, Pakistan
Engineering systems that scale
Backend engineer, SaaS builder, and independent consultant helping businesses ship reliable software.
I'm Ahmed Khawar, a Software Engineer with 3+ years of professional experience building production backends, APIs, and AI-integrated applications. I currently lead backend engineering at Pentagon AI, where I architect SaaS infrastructure supporting 10,000+ concurrent sessions.
Beyond my full-time role, I run my own software services business and take on freelance projects — delivering custom backend solutions, SaaS products, and enterprise automation for clients who need production-grade engineering without the overhead of a large team.
I'm an advocate of the “building in public” philosophy, regularly sharing technical documentation, architecture deep-dives, and engineering milestones with the professional community.
Bachelor of Science in Software Engineering
University of Central Punjab, Lahore
Oct 2020 — Jul 2024
Ongoing Training
- AWS CSA & DevOpsEC2, ECS, S3, RDS, Docker, Kubernetes, IAM
- Agentic AIMulti-agent frameworks, tool integration, reasoning chains
Interests
Skills & Technologies
The tools and practices I use to build reliable, scalable software.
Languages
Frameworks & Libraries
Databases & Data Stores
DevOps & Cloud
Practices
Professional Journey
Building production systems across Voice AI, enterprise automation, and SaaS platforms.
Lead Backend Engineer
Pentagon AI
Lahore, Pakistan
- Architected scalable SaaS backend in Python supporting 10,000+ concurrent sessions with sub-150ms response latency.
- Designed modular, feature-based service architecture across 7+ interconnected modules for real-time communication, scheduling, transcription, and AI intent parsing.
- Integrated Voice AI and LLM infrastructures (Twilio, OpenAI) via secure REST APIs and webhook handlers across 5+ external services.
- Led PostgreSQL schema design and optimization, reducing query overhead by 45% for a multi-tenant architecture.
- Directed backend security compliance (JWT, OAuth, input sanitization), eliminating 95%+ of exploit vectors in penetration testing.
- Established rigid API contracts with cross-functional teams, reducing integration bugs by 70%.
- Mentored intern on OOP, scalable system design, and clean web API creation.
Software Engineer
Nidam AI
Lahore, Pakistan
- Led design and customization of enterprise ERPNext systems with custom client/server scripts and API integrations.
- Automated modular operations across accounting, sales, and HR departments.
- Established secure authentication flows and access control policies, reducing common security vulnerabilities by ~75%.
Software Engineer
TronAI Technologies
Lahore, Pakistan
- Engineered scalable backend microservices using FastAPI and PostgreSQL, improving API response times by 25%.
- Implemented asynchronous task handling with Celery and Redis for heavy background processing jobs.
- Designed modular, reusable core backend components reducing feature development effort by 35% with 90%+ test coverage.
What I Can Build For You
Custom development solutions for startups, enterprises, and independent clients.
Selected Work
Technical case studies from production systems I've architected and shipped.
SmartConvo
Distributed Voice AI platform with high-throughput real-time voice data orchestration.
Architected a high-performance backend ecosystem utilizing Django for core business logic and a custom FastAPI service layer for high-throughput, real-time voice data stream orchestration.
- Redesigned microservice communication boundaries, increasing throughput by 40%.
- Maintained 99.9% uptime across real-time voice processing pipelines.
Evo Trade AI
Multi-agent autonomous cryptocurrency trading engine with real-time sentiment analysis.
Deployed a modular multi-agent trading engine automating the full lifecycle across four decoupled, specialized AI agents executing real-time sentiment analysis and technical indicators (RSI, MACD).
- Centralized strategic coordinator aggregating asynchronous market data streams.
- Four specialized AI agents for signal validation and trade execution.
UniFix
AI-driven internship platform with intelligent student-to-internship matching.
Developed a full-stack web application featuring secure application tracking, student-to-internship matching via intelligent AI matching logic, and automated application status workflows.
- AI-powered matching logic for student-internship pairing.
- Automated application status workflows and tracking.
SaaS Products I've Built
Production software products designed to solve real business problems at scale.
SmartConvo
Distributed Voice AI Platform for Modern Businesses
SmartConvo is a production-grade Voice AI SaaS platform that enables businesses to deploy intelligent voice agents, manage call workflows, and process real-time transcriptions at scale. Built to handle 10,000+ concurrent sessions with enterprise-grade reliability.
- Real-time voice data stream orchestration
- AI-powered intent parsing and call scheduling
- Multi-tenant SaaS architecture
- Twilio & OpenAI integrations
- Sub-150ms API response latency
- Secure webhook handling across 5+ services
Client Projects
Independent development work delivering custom solutions for clients.
UniFix — AI Internship Platform
Independent Client Project
Problem
Universities and students needed a streamlined way to discover, apply to, and track internship opportunities — with intelligent matching to reduce manual coordination overhead.
Solution
Built a full-stack platform with Django backend and React frontend, featuring AI-driven student-to-internship matching, secure application tracking, and automated status workflows.
Outcome
Delivered an end-to-end internship management system with intelligent matching logic, reducing manual application processing and improving match quality for students and employers.
What Clients Say
Feedback from teams and clients I've worked with.
“Ahmed architected our entire SaaS backend from the ground up. His modular approach and attention to API contracts made our frontend integration seamless. Response times dropped significantly and we scaled to 10,000+ concurrent users without issues.”
Product Lead
Engineering Manager · Voice AI Startup
Building in Public
Technical deep-dives, architecture notes, and engineering lessons from production.
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