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Mostafijur Rahaman

Mostafijur Rahaman

Lead Software Engineer

Lead Software Engineer with 10+ years building and scaling high-traffic platforms. Specializing in backend architecture, system design, and leading teams to deliver reliable systems. Combines hands-on technical work with team leadership and production ownership. Open to global remote or hybrid roles at engineering-driven product companies.

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Articles

Article28 July 20262 min read

What Building ScholaBook Taught Me About SaaS Product Decisions

Building ScholaBook sharpened a product lesson: SaaS decisions are less about feature lists and more about tenancy, workflows, and the operational truth of who the software serves day to day.

System Design
Backend Architecture

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Article28 July 20262 min read

Reducing AWS Cost Without Compromising Reliability

Cost work fails when it is treated as a discount hunt. Treat it as reliability-aware capacity design: measure waste, protect the critical path, and change architecture only when the numbers and risks agree.

Cloud & AWS
Performance Engineering
Scalability

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Article28 July 20262 min read

How I Think About Engineering Quality, Delivery Speed, and Technical Debt

Quality, speed, and debt are not slogans. They are competing constraints. Here is a practical way to negotiate them without pretending trade-offs do not exist.

System Design
Backend Architecture

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Article28 July 20262 min read

Designing Notification Systems That Survive Real Traffic

Notifications look simple until retries, fan-out, preferences, and provider failures show up. Here is a durable mental model for building them as an operable subsystem.

System Design
Microservices
Scalability

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Article28 July 20263 min read

Modernising a High-Traffic Laravel Monolith Without Disrupting Production

A practical approach to evolving a busy Laravel codebase: reduce risk first, extract only when the boundary is real, and keep production operable throughout.

Backend Architecture
Performance Engineering
Scalability

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