Roohan Ahmed

Senior PHP Developer with 8+ years building and scaling enterprise web applications on Laravel and CodeIgniter, with deep AWS cloud infrastructure expertise. Led query optimization. AWS Certified Developer – Associate with a track record of reducing production defects, improving delivery velocity, and translating client requirements into scalable technical solutions.

Senior PHP Developer at Qubits Enterprise (2025-06 – Present)

• Develop reliable, high-performance enterprise SaaS PHP apps (Laravel/CodeIgniter) using Claude Code and Git Copilot.
• Partner with product and design teams to scope and ship new features aligned with evolving business requirements.
• Perform systematic debugging and root-cause analysis to resolve production issues and maintain application stability.
• Act as primary technical point of contact in client meetings, translating feedback into actionable requirements.

Senior PHP Developer at E Spark Talent (2024-09 – 2025-06)

• Develop and maintain PHP enterprise applications on CodeIgniter, ensuring high reliability and performance in production.
• Reduced production bug count by introducing structured debugging workflows and formal QA processes.
• Led development and enhancement of SaaS products on PHP/CodeIgniter.

Software Engineer → Senior Software Engineer Specialist at Salesflo Pvt Ltd (2018-01 – 2024-05)

Progressed from Software Engineer to Senior Software Engineer Specialist over 6+ years, taking on increasing ownership of architecture, data, and cloud infrastructure.

• Led database migration, sharding, and partitioning; optimized critical SQL queries to improve performance at scale.
• Built and shipped the Claim Management module, streamlining the end-to-end claims process for 20+ client companies.
• Implemented AWS Secrets Manager to eliminate hardcoded credentials, improving application security posture.
• Implemented Google Maps API geo-fencing to enforce routing compliance for field sales teams, improving route adherence by 80%.
• Reduced mapping API costs by 80% through API selection and usage optimization.
• Drove cross-team collaboration across Product, App, Cloud, and Data teams to deliver quarterly roadmap milestones; owned full SDLC under Agile/Scrum (Jira, GitHub).

MBA in Management Information Systems – University of Sindh (2017)

B.S. in Computer Science – University of Sindh (2015)