Looking for a job

Abdul Rehman

@abdul_rehman

Message

Senior software engineer building scalable SaaS platforms with Python, FastAPI, React, and robust APIs.

Pakistan

Message

What I'm looking for

I’m looking to build scalable SaaS backends and APIs, optimize performance, and integrate AI, LLMs, and RAG to create intelligent applications. I aim to combine strong backend engineering with practical AI solutions in a remote, engineering focused environment.

I’m a Senior Software Engineer with 5+ years of experience building scalable SaaS platforms, REST APIs, and full-stack web applications.

Currently, I’m working on AI-powered applications, integrating large language models(LLMs), building retrieval-augmented generation (RAG) systems, and developing AI workflows to deliver intelligent, scalable solutions.

In my previous role, I developed scalable backend services for an AI-powered PropTech SaaS platform, supporting 1M+ residential units and 8.7M+ renter engagements. I designed and optimized APIs, reducing latency by approximately 30%.

Previously, I built and enhanced SaaS products, including a booking and business management platform serving 6,500+ businesses. I’ve contributed to different software architectures, supported learning management systems, and developed a production-grade URL shortener with authentication, analytics, caching, rate limiting, and background processing.

I focus on performance and reliability by optimizing database queries, implementing caching, and using asynchronous processing to improve scalability and system efficiency. I also collaborate with distributed engineering teams in remote, asynchronous environments.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Baaytrix

May 2026 - Present (5 months)

• Developed and enhanced scalable web applications across backend services, frontend features, and API integrations.

• Integrated AI and LLM into applications, working with prompt engineering, model APIs, and structured responses.

• Implemented RAG based solutions, working with embeddings, vector search, and context-aware AI responses

LLM APIs RAG RAG Data Pipelines AI Agents AI Prompt Engineering OpenAI API

Senior Software Engineer

StackUp Technologies

Jul 2025 - Apr 2026 (9 months)

• Developed scalable backend services for an AI-powered PropTech SaaS platform (Hyly.ai; https://hyly.ai/), supporting 1M+ residential units and 8.7M+ renter engagements, providing agentic AI solutions for multifamily properties.

• Designed and optimized backend APIs, reducing latency by ~30% and implemented PostgreSQL/MongoDB optimizations with Redis caching and asynchronous processing.

REST APIs GraphQL APIs PostgreSQL MongoDB Redis Asynchronous Caching Strategies Distributed Systems

Software Engineer

Rastah Labs

Jul 2023 - Jul 2025 (2 years)

• Developed a SaaS booking and business management platform (Nearcut; https://nearcut.com/) serving 6,500+ businesses.
• Contributed to a web crawling platform (Crawlbase; https://crawlbase.com/) accessing 120+ previously inaccessible websites.
• Participated in Agile/Scrum development, code reviews, debugging, and collaborative feature delivery.

Backend Services Microservices Web Crawling Testing

Associate Software Engineer

Baaytrix

Feb 2021 - Jul 2023 (2 years 5 months)

• Enhanced LMS platforms including Brain Box Academy (https://www.lmsbrain-box-academy.com/) and Code S Academy (https://lms-code-s-academy.com/), supporting course delivery and user management workflows.

• Contributed to Junior Coderz (https://juniorcoderz.com/) and integrated the WhatsApp API to automate class scheduling and notifications.

LMS LMS Development LMS Implementation