Systems Engineering · Full-Stack · SaaS Architecture
Production systems that survive scale, audits, and the gap between MVP and enterprise. Backend architecture, cloud pipelines, and SaaS infrastructure — owned end-to-end.
Engineering Philosophy
Three principles guide every system I design — from initial architecture to production handoff.
Every system begins with a threat model. Failure modes, data consistency boundaries, and operational bottlenecks are mapped before a single line is written. Complexity is governed through deliberate constraint.
Software that runs on localhost and software that survives production are two different products. Deployment pipelines, environment isolation, and failure recovery paths are spec requirements — not afterthoughts.
The deliverable is not a component — it is a working, monitored, documented system that a non-technical operator can run without calling the developer.
Selected Work
Cloud-native RTSP camera streaming platform with resilient offline archiving and sub-2-second live feed latency over unstable networks.
Unified POS and repair-tracking platform replacing fragmented paper workflows. Four RBAC role tiers, barcode scanning, and offline-first distribution.
City-scale delivery ecosystem with real-time WebSocket order dispatching, live GPS tracking, and tripartite mobile architecture for customers, couriers, and merchants.
End-to-end IoT-to-mobile telemetry pipeline surfacing real-time pediatric vitals to parents. Threshold alerting and AI-assisted interpretation built in.
Playwright-powered Google Maps extractor that bypasses anti-bot measures to build a verified database of private schools across all 58 Algerian wilayas.
Stateful fairness-guaranteed round-robin algorithm with holiday memory, eliminating scheduling bias across medical on-call rosters.
Multi-tenant SaaS digitizing student enrollment, financial reconciliation, and academic tracking for private Algerian schools. PostgreSQL row-level security throughout.
Systems Playground
Interactive data-flow node topologies. Watch packets traverse pipelines in real-time.
Client Perspective
Oussama delivered a production-ready cloud video surveillance platform in record time. The architecture was clean, documented, and required zero post-launch firefighting. Exactly the kind of senior technical partner we needed.
The multi-tenant SaaS system he built handles our entire repair shop network — inventory, POS, RBAC roles, thermal printing — all from a single codebase. He thought about the business model, not just the feature list.
Engagement Model
Every engagement follows a structured, low-risk delivery model. No sprint-planning theatre — just clear deliverables at each stage.
Requirements audit, threat model, and architecture decision record. We align on constraints, data boundaries, and success criteria before a line of code is written.
System architecture diagram, data model, API contract, and deployment topology. Every design decision is documented with its rationale and trade-offs.
Disciplined development against the spec. Staging environment from day one, milestone sign-offs, and no scope creep without a documented change request.
Full technical documentation, operator runbook, environment setup guide, and post-launch monitoring. The system runs without me — that's the goal.
Interactive Terminal
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Technical Stack
Get In Touch
Available for project-based engineering work and long-term technical partnerships. Response within 24 hours.
Whether you need a production system built from scratch, an existing codebase audited, or a technical co-founder — let's talk.