SSaifullah.

FULL-STACK ENGINEER · BACKEND SYSTEMS ARCHITECT

Engineering digital products that perform beyond expectations.

I'm Saifullah — a backend engineer specializing in Laravel, scalable architectures, API ecosystems, and high-performance digital products.

Let's build something exceptional Explore my work
SCROLL TO EXPLORE01 — 06
01THE ENGINEER BEHIND THE SYSTEMS

Beyond writing code.
Building systems that matter.

I think in systems, not isolated features. From application architecture to performance, infrastructure, and product delivery, I turn complex engineering challenges into software that stays reliable as it grows.

My work lives at the intersection of thoughtful architecture and measurable business outcomes — maintainable code, secure boundaries, and fast paths where they count.

View my approach
5+YEARS OF PROJECT
EXPERIENCE
99.9%PRODUCTION
UPTIME
50K+USERS SUPPORTED
GLOBALLY
0%FINANCIAL
DISCREPANCIES
02SELECTED ENGINEERING OUTCOMES

Proof, measured
in the outcome.

Real engineering work from TradeX Protocol, Adlunam, and Cams-shop — presented with the context behind the numbers.

01 / 05

Performance engineering

From 5 seconds to under 100 milliseconds.

A high-frequency ROI distribution engine built with Laravel Queues and Redis. Faster calculations made daily payouts more accurate and dependable.

LaravelRedisQueues
<100msROI calculation time
03THE TOOLKIT

Technology is a means.
Architecture is the craft.

The tools change. The principles stay: clear boundaries, observable systems, and engineering decisions that hold up under pressure.

Backend engineering

  • PHP / Laravel
  • REST APIs
  • Microservices
  • Clean Architecture

Data & performance

  • MySQL / PostgreSQL
  • Redis
  • SQL optimization
  • Indexing

Distributed systems

  • Queues & workers
  • RabbitMQ / SQS
  • Retry strategies
  • Async processing

Infrastructure & quality

  • AWS / Docker
  • Kubernetes
  • CI/CD
  • OWASP / PHPUnit
04ARCHITECTURE PLAYGROUND

Good architecture
is invisible.
Its impact isn't.

An illustrative system map for exploring how I think about reliable products. Select a node to see its responsibility and trade-offs.

Client

Web and mobile clients send authenticated requests to the application boundary.

ILLUSTRATIVE ARCHITECTURE · NOT A PRODUCTION SYSTEM
05EXPERIENCE & TRUST

Built through
real constraints.

Download CV
01

AUG 2025 — PRESENT

Backend Engineer

TradeX ProtocolDubai, UAE · Remote
02

OCT 2022 — DEC 2025

Backend Engineer

AdlunamTortola, BVI
03

SEP 2021 — SEP 2022

Junior Backend Engineer

Cams-shopChantepie, France

2019 — 2023

B.Sc. Computer Science & Engineering

Port City International UniversityChittagong, Bangladesh
06START A CONVERSATION

HAVE A COMPLEX PROBLEM?

Let's engineer
the solution.

Whether you're building a new product, scaling an existing platform, or improving backend performance, let's discuss what needs to be built.

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