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Principal Software Engineer with 14+ years of experience building scalable backend systems, cloud-native architectures, and AI-driven applications. Strong focus on Python, AWS, RESTful microservices, and production-grade engineering practices. Recent work includes Generative AI, LLM pipelines, and RAG systems—designing and deploying reliable LLM orchestration, inference APIs, and evaluation strategies. Experienced in client delivery, end-to-end solution design, and building automation platforms that reduce operational effort and improve reliability.…Principal Software Engineer with 14+ years of experience building scalable backend systems, cloud-native architectures, and AI-driven applications. Strong focus on Python, AWS, RESTful microservices, and production-grade engineering practices. Recent work includes Generative AI, LLM pipelines, and RAG systems—designing and deploying reliable LLM orchestration, inference APIs, and evaluation strategies. Experienced in client delivery, end-to-end solution design, and building automation platforms that reduce operational effort and improve reliability.

Omer Waqas Khan

Back-End Developer, Web Developer, Programmer, +2

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Principal Software Engineer with 14+ years of experience building scalable backend systems, cloud-native architectures, and AI-driven applications. Strong focus on Python, AWS, RESTful microservices, and production-grade engineering practices. Recent work includes Generative AI, LLM pipelines, and RAG systems—designing and deploying reliable LLM orchestration, inference APIs, and evaluation strategies. Experienced in client delivery, end-to-end solution design, and building automation platforms that reduce operational effort and improve reliability.…Principal Software Engineer with 14+ years of experience building scalable backend systems, cloud-native architectures, and AI-driven applications. Strong focus on Python, AWS, RESTful microservices, and production-grade engineering practices. Recent work includes Generative AI, LLM pipelines, and RAG systems—designing and deploying reliable LLM orchestration, inference APIs, and evaluation strategies. Experienced in client delivery, end-to-end solution design, and building automation platforms that reduce operational effort and improve reliability.

Available to hire

Principal Software Engineer with 14+ years of experience building scalable backend systems, cloud-native architectures, and AI-driven applications. Strong focus on Python, AWS, RESTful microservices, and production-grade engineering practices.

Recent work includes Generative AI, LLM pipelines, and RAG systems—designing and deploying reliable LLM orchestration, inference APIs, and evaluation strategies. Experienced in client delivery, end-to-end solution design, and building automation platforms that reduce operational effort and improve reliability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Principal Software Engineer at Arccos Golf

January 1, 2020 - Present

Developed and maintained iOS native modules for the Arccos Golf application using Swift and Objective-C, contributing to feature enhancements and long-term codebase refactoring. Built and integrated RESTful backend services supporting mobile features and data synchronization. Collaborated with product, backend, and mobile teams to align engineering delivery with roadmap. Reviewed pull requests, improved code quality, and reduced production issues through proactive refactoring.

Principal Software Engineer at PwC

January 1, 2020 - Present

Designed and deployed end-to-end LLM pipelines and Retrieval-Augmented Generation (RAG) systems for enterprise use cases. Engineered conversational AI agents and multi-step reasoning workflows using LangGraph for reliable orchestration. Served models using AWS and Docker with high availability, scalability, and monitoring. Built low-latency FastAPI inference APIs for real-time and batch AI workloads. Optimized prompts/system instructions and established evaluation strategies to improve accuracy, consistency, and latency. Rapidly prototyped GenAI features and proofs-of-concept for quick iteration to production-ready solutions, including agentic tool-calling patterns and memory.

Principal Software Engineer at TenX

January 1, 2020 - Present

Designed and deployed AWS serverless architectures (Lambda, EventBridge, S3, CloudWatch, IAM) to automate compliance workflows, improving scalability and reducing manual operations. Built Python ETL pipelines (pandas, Excel reporting) to process survey data and generate compliance risk assessments, with automated delivery via Google Drive APIs and HubSpot CRM. Developed RESTful integrations (HubSpot CRM v3, WordPress, MemberPress) to manage subscriptions, user lifecycle, and compliance states. Implemented secure backup and archival solutions for audit-ready retention and reduced operational risk. Led end-to-end client engagements including requirement gathering, solution design, delivery, reliability improvements using logging/error handling, and idempotent processing for safe re-runs.

Senior Software Engineer at tv2u

October 1, 2018 - January 1, 2020

Developed Python backend services and exposed APIs using Django. Integrated third-party APIs and services, improving application functionality and user satisfaction by ~40%. Built React Native application (VES) for the airline industry supporting booking and operational workflows. Developed iOS native and tvOS applications for media streaming platforms. Delivered production-ready builds for QA, demos, and App Store releases.

Software Engineer at Macrosoft Pakistan

October 1, 2015 - October 1, 2018

Designed and implemented RESTful APIs using Python and Django for web and mobile applications. Developed a Python-based crawler (Address Extractor) achieving ~85–90% data extraction accuracy. Built scripts to parse JSON data and load structured information into relational databases. Improved admin-side performance using React.js-based UI components. Developed and maintained iOS native applications across the full development lifecycle.

Software Engineer at BinaryTech Global

April 1, 2014 - October 1, 2015

Developed and maintained an iPad iOS application in an agile environment. Worked directly with international clients delivering feature enhancements, bug fixes, and performance improvements.

Software Engineer at Excel Sources

October 1, 2012 - April 1, 2014

Designed and built iOS native applications for iPhone and iPad using test-driven development practices. Developed a desktop inventory management system for a transportation company. Contributed across iOS application development and quality improvements.

Associate Software Engineer at Macrosoft Pakistan

September 1, 2011 - October 1, 2012

Developed an iOS application (Vektor) for a Turkish transportation company. Worked with FFMPEG (C++) for multimedia processing and video handling. Implemented a complex custom video player module for an iOS media application.