Open to opportunities

Hamza Rehman

@hamzarehmandev

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Senior full-stack software engineer specializing in Python, PHP, and multitenant systems.

Japan

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What I'm looking for

I seek roles building scalable, multitenant web platforms where I can improve performance, automate billing/accounting, and speed onboarding in collaborative Agile teams.

I am a Senior Software Engineer with over three years of hands-on experience building scalable, multitenant web applications using Python, PHP, and Laravel. I specialize in designing fault-tolerant architectures, performance tuning large SQL databases, and automating complex billing and accounting workflows.

At EvoraCore I rebuilt core architecture to support isolated multitenancy, designed a formula-driven double-entry accounting engine that reduced reconciliation time by over 90%, and implemented an AWS S3 backup/restore system to enable full tenant recovery and 99% uptime. Previously at Sacred Cube I contributed to a multi-tenant ERP serving over 10,000 financial professionals and helped deliver features that supported major revenue for the Super App.

I am passionate about delivering reliable, performant systems and improving developer and customer experience through automation, no-code templates, and careful observability. I thrive in Agile teams, participate in code reviews, and focus on measurable business impact such as reduced onboarding time and faster query performance.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (Full Stack)

Current

EvoraCore

Jun 2024 - Present (1 year 4 months)

Rebuilt core multitenant architecture and implemented AWS S3 backup/restore to enable full-tenant recovery and 99% uptime; tuned a 150M+ row SQL database to cut load times to 300ms and stabilized CPU usage.

PHP Laravel Python AWS S3 MySQL Performance Tuning

Software Engineer (Full Stack)

Sacred Cube

Jun 2022 - May 2024 (1 year 11 months)

Developed a dynamic multi-tenant ERP serving 10,000+ financial professionals and contributing to a major portion of a $700k product revenue; handled large data queries and improved performance for 1,000+ daily requests.

PHP Laravel JavaScript Agile)Performance Optimization Agile

Software Engineering Intern

EtechLogics

Mar 2022 - May 2022 (2 months)

Built WordPress plugins and themes and developed user-facing interfaces, improving app customization and usability while ensuring reliable functionality through debugging and QA.

WordPress PHP HTML CSS JavaScript Theme Development Debugging

Education

Degrees, certifications, and relevant coursework

Virtual University

Bachelor of Science, Computer Science

2021 -

Pursuing a Bachelor of Science in Computer Science at Virtual University since September 2021, focusing on software development and related technologies.