I'm Raja Mohsin Tariq, a senior software engineer focused on building subscription and payment-driven SaaS platforms with Ruby on Rails. I enjoy turning complex ideas into robust, scalable systems and delivering value to users through reliable backend services and delightful front-end experiences. I collaborate across product and design, mentor teammates, and embrace AI-assisted tooling to raise quality and speed without compromising craftsmanship. I thrive in fast-paced startups and love helping creators monetize their audiences through sustainable, recurring revenue products.

Raja Mohsin Tariq

I'm Raja Mohsin Tariq, a senior software engineer focused on building subscription and payment-driven SaaS platforms with Ruby on Rails. I enjoy turning complex ideas into robust, scalable systems and delivering value to users through reliable backend services and delightful front-end experiences. I collaborate across product and design, mentor teammates, and embrace AI-assisted tooling to raise quality and speed without compromising craftsmanship. I thrive in fast-paced startups and love helping creators monetize their audiences through sustainable, recurring revenue products.

Available to hire

I’m Raja Mohsin Tariq, a senior software engineer focused on building subscription and payment-driven SaaS platforms with Ruby on Rails. I enjoy turning complex ideas into robust, scalable systems and delivering value to users through reliable backend services and delightful front-end experiences.

I collaborate across product and design, mentor teammates, and embrace AI-assisted tooling to raise quality and speed without compromising craftsmanship. I thrive in fast-paced startups and love helping creators monetize their audiences through sustainable, recurring revenue products.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

Language

English
Fluent

Work Experience

Software Engineer at Devsinc
January 1, 2025 - Present
Engineered and maintained Ruby on Rails applications, delivering back-end services for multiple client-facing SaaS products; modernized front-end with Hotwire; built reusable View Components; managed AWS infra via Cloud66; achieved 95%+ test coverage with RSpec; collaborated with product, design, and customer success to translate feedback into technical tasks; leveraged AI-assisted tooling for planning, code reviews, and documentation.
Senior Software Engineer at CoFi
January 1, 2024 - January 1, 2026
Owned end-to-end architecture and delivery of a subscription billing and financing platform; resolved N+1 queries and optimized ActiveRecord with eager loading; modernized a Rails monolith front end using Hotwire and View Components; designed AWS production infra with Cloud66; instrumented feature adoption metrics via CloudWatch; authored comprehensive RSpec suites; mentored junior engineers and collaborated with Product/Design to drive adoption.
Software Engineer at Maple
January 1, 2023 - January 1, 2024
Developed and maintained Ruby on Rails applications; implemented Devise-based authentication and RBAC; performed performance profiling and query optimization; collaborated with non-technical stakeholders to translate business needs into technical specs; enforced Git workflows and code standards.

Education

Bachelor of Science in Computer Science at University of Central Punjab
January 1, 2019 - January 1, 2023

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

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