Kareem Saad

Software Engineer | Backend & Platform Systems

 
I'm a software engineer working on backend systems, multi-tenant platforms, and the infrastructure AI agent systems run on.
 
I currently work on BRAIN, a SuperAgent harness that researches, codes, and creates using sandboxes, memory, tools, skills, and subagents. I built its multi-tenancy, authentication, and isolation foundation, designed the file upload pipeline ahead of RAG integration, integrated Google Cloud Storage and bridged it to sandboxed execution environments, and architected the custom agents marketplace — schema, permissions, install and update workflows.
 
Before this, I built backend services and full-stack products across e-commerce, healthcare, and SaaS, and spent a year evaluating LLM code generation — which is why I think carefully about where AI tooling helps and where it quietly hurts.
 

What I work on

• Multi-tenancy, authentication, and tenant isolation
• Backend services and API design
• AI agent infrastructure — sandboxes, tools, memory, retrieval
• Cloud storage and file pipelines
• Database schema design and data modeling
• System design and architectural decision-making
• Full-stack delivery when the work calls for it

How I work

 
I care about the problem behind the code. Most of my time on hard features goes into design — what the data model has to guarantee, where the security boundaries are, what happens on failure. I write design docs, work through alternatives explicitly, and flag trade-offs rather than hiding them behind a decision.
 
I don't have a static stack: TypeScript/Node.js, PHP/Laravel, Python, React, Angular, on PostgreSQL, MySQL, and MongoDB. The stack follows the problem.
 

What I bring

 
Design → Build → Question → Iterate
 
If you need someone who'll dig into an unfamiliar system, understand why it's shaped the way it is, and ship something solid inside it, that's the work I'm good at.