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Umar Farooq

@umar-fullstack

Senior Software Engineer building scalable SaaS, backend systems, and AI-powered products with Ruby on Rails, Python, AWS, React, and Next.js.

Pakistan

Message

What I'm looking for

Seeking Senior Backend, Full-Stack, and AI Engineering roles with remote international teams. Strong in Ruby on Rails, Python, Node.js, AWS, PostgreSQL, Redis, Docker, scalable SaaS, APIs, distributed systems, and AI/LLM integrations. Interested in long-term roles with technical ownership, architecture, and growth toward Staff-level engineering.

I’m a Senior Software Engineer with 6+ years of experience building scalable SaaS platforms, backend systems, APIs, and AI-powered products using Ruby on Rails, Python, Node.js, React, Next.js, PostgreSQL, Redis, Docker, and AWS.

My experience spans property technology, healthcare, workflow automation, and AI-powered SaaS. I’ve contributed to platforms serving 10,000+ active users, healthcare systems processing 500+ daily patient records, and software used across 150+ ICUs and 70+ acute-care hospitals.

I specialize in backend architecture, REST and GraphQL APIs, multi-tenant SaaS, distributed and asynchronous processing, third-party integrations, cloud deployments, and production system optimization. I also work with OpenAI, Gemini, embeddings, RAG, vector search, MCP, and AI-agent workflows to integrate intelligent capabilities into existing products.

I enjoy solving complex engineering problems, improving scalability and reliability, mentoring engineers, and taking features from technical design through production. I work effectively with distributed, async-first teams and have collaborated with US, UK, and international stakeholders.

I’m currently focused on Senior Backend, Full-Stack, SaaS, and AI Engineering opportunities with strong engineering teams where I can contribute to architecture, product development, and technically challenging systems.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Software Engineer

HappyTenant

Feb 2025 - Aug 2026 (1 year 6 months)

Build scalable Ruby on Rails SaaS applications for property management, including multi-tenant workflows, REST APIs, third-party integrations, and background processing. Contribute to Berto.ai, implementing AI-powered features and workflow automation using LLM integrations. Work across architecture, development, code reviews, and production deployments in a distributed team.

Ruby on Rails React Next.js AI Python SQL Project Management CI CD Ruby AI Tools AI ML AI Agents API Integration API Development

Software Engineer

Placer Guides & Nationwide Surveyors

Jan 2023 - Jan 2025 (2 years)

Built and maintained Ruby on Rails SaaS platforms for US and UK clients, including AI-powered guest communication, digital tour guides, and property compliance systems. Developed REST APIs, backend workflows, React/Next.js integrations, and third-party services while working independently across distributed, async-first teams.

Ruby on Rails React Next.js Python Ruby OpenAI AI Agents AI ML

Software Engineering Intern

Devsinc

Developed Ruby on Rails web applications using MVC architecture, REST APIs, relational databases, JavaScript, HTML, CSS, and Bootstrap. Implemented features, fixed bugs, and worked with backend business logic and API integrations.

Ruby on Rails MVC REST APIs Relational Databases JavaScript HTML CSS Bootstrap Agile Development Code Review Testing

Full Stack Software Engineer

Piecyfer

Developed scalable Ruby on Rails SaaS and healthcare platforms using PostgreSQL, Redis, AWS, Docker, React, and APIs. Worked on systems supporting 100+ doctors, 500+ daily patient records, and healthcare software used across 150+ ICUs and 70+ hospitals.