23.81°N · 90.41°ESIJANEST · 2023DRAFTING…
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Architecting the system
Mohammad Sijan — Engineer

Mohammad

Sijan.

Founder & Lead Architect of SpritEX AI (the cognitive infrastructure foundation) and its flagship product ecosystem RexiO.

See the work→Get in touch
Mohammad Sijan
based in
Dhaka, BD
2+
Years Buildingsince 2023
10+
Systems Shippedend to end
1
Lead ArchitectSpritEX AI
01 — about

A short
introduction.

01

Founder of SpritEX AI & its flagship consumer core, RexiO.

02

Building cognitive infrastructure and high-performance orchestration layers.

03

Engineering care equal to any major lab — without the lab.

What I do, I'd rather you read in the work. A portfolio should show, not tell. If something here interests you, my inbox is open.

I'm not looking to be hired, and I don't take freelance work. But I'm open to collaboration, regional work, and offers worth a real conversation.

direct contact
contact@sijan.pro.bd
Open to collab
02 — principles

What I
stand by.

Guiding values that direct my architecture, my products, and my day-to-day focus.

01

Build before announcing.

Code is truth. Commit first, talk later. The best demonstration of capability is software that actually runs.

02

Systems over shortcuts.

Avoid temporary fixes and quick hacks. Spend the extra time to design resilient architectures and clean abstractions that scale.

03

Long-term over trends.

Tools and hype cycles fade. Focus on foundational computer science principles, solid system design, and lasting engineering value.

04

Technology should amplify people, not replace them.

Software is a tool to extend human capability. AI and infrastructure should automate the mundane to empower creative architectural focus.

03 — vision

AI for
everyone.

Democratizing artificial intelligence and engineering intuitive tools for daily life.

Artificial Intelligence should not be something reserved for experts, researchers, or large companies. It should be accessible, understandable, and useful to everyone.

At SpritEX AI, our vision is to make AI simpler, more practical, and more valuable in everyday life. We believe the true purpose of AI is not to replace people, but to help them think better, learn faster, create more, and solve problems with greater confidence.

Too many people still see AI as something complicated, intimidating, or even threatening. We want to change that. By building tools that are intuitive and genuinely helpful, we aim to help individuals understand the right way to use AI and unlock its full potential in their daily lives.

As AI continues to evolve, we will continue improving the technology behind it—but innovation alone is not our goal. Every advancement should create real value for real people. Technology matters only when it makes life easier, work more efficient, and opportunities more accessible.

Our Mission

Make AI easier to understand, easier to use, and more useful for everyone.

04 — work

Selected things I've built, and am still building.

More in progress.

01Featured · Research Lab

SpritEX AI

A public-benefit artificial intelligence research laboratory and cognitive infrastructure foundation.

SpritEX is a deep research lab specializing in high-performance orchestration layers, multi-agent frameworks, and cognitive reasoning cores designed to secure and power the future of autonomous intelligence. It acts as the parent brand and research backbone for flagship product ecosystems like RexiO.

Cognitive ArchitecturesOrchestration CoreMulti-Agent FrameworksAI Safety
role
Founder, Lead Architect
year
2022 — present
spritexai.pro.bd
Ecosystem Projects & Frameworks
01.1Product Ecosystem

RexiO

A polyglot AI assistant for the next generation of digital infrastructure.

Powered by SpritEX's cognitive orchestration cores, RexiO is an AI assistant platform featuring a custom semantic memory engine and multi-language support.

role
Founder & Lead Architect
rexio.pro
01.2Open source

hello-coder

A framework that makes AI coding agents plan, ask, and review before they write.

Built because I was tired of watching agents pick random colors, fix the first bug they saw, and ship unreviewed code. It installs in seconds, finds every agent on your machine, and gives them professional engineering habits.

TypeScriptAI agentsOpen source
role
Creator
github.com/SpritexAI/hello-coder

If you want to talk about something specific, get in touch.

Let's talk →
05 — stack

What I
work with.

Languages, systems, and surfaces I'm comfortable owning end to end.

"The list is not
the point."

Languages
Rust·Go·Python·Kotlin·TypeScript·C·C++
Systems & Infrastructure
Linux·Docker·PostgreSQL·Async services·Distributed primitives
AI / ML
PyTorch·LLM orchestration·Retrieval & embeddings·Agent systems·Inference at the edge
Product Surfaces
Native Android·Next.js / React·Progressive web·Real-time interfaces
06 — notes

On engineering, in four short opinions.

  1. 01

    Decisions before code.

    Most software fails not because of bad code, but because of bad decisions made before a single line was written.

  2. 02

    Useless beauty.

    A product that solves a real problem badly will always outlive a beautiful product that solves nothing.

  3. 03

    Documentation is not optional.

    Undocumented code is technical debt with interest. Every system I build ships with the writing it needs to be understood later.

  4. 04

    Performance is a feature.

    Slow software is broken software. The user does not care about your architecture diagram; they care that it works, and works fast.

07 — contact

Get in touch.

Email is best. Collaboration, regional work, and offers worth a real conversation — not freelance.

Send me an emailUsually replies within 24h