System Online· binhakim.dev · v26
>whoami
//Backend Engineer · Systems Infrastructure
>ls skills/ | head -5
//Java Spring Node.js PostgreSQL JavaScript Nginx

Yusuf Naeem
Abd El-Hakim

I build production systems end to end, designing scalable APIs and data models, integrating LLMs and AI agents where they earn their place, and shipping live SaaS that real users rely on. I build, secure, and measure what I ship.

Yusuf Naeem Abd El-Hakim
scroll

// 01. About

Engineering systems that just work

$ cat profile.txt

I'm a backend-leaning software engineer who builds and ships production systems end to end — API design and data modelling, modern frontends in Next.js and TypeScript, and the deployment and security hardening around them.

I deep-dive into system internals — query planners, reverse proxy routing, LLM streaming pipelines — and integrate AI where it earns its place: building tools that are genuinely useful in production, not just impressive in demos.

I ship real products: Orbit, a Professional Relationship OS with OAuth SSO, Gemini AI semantic search, and Stripe billing, runs live at byorbit.io today.

When I'm not building systems, I write on Medium about backend engineering, databases, and infrastructure patterns I've found useful.

GitHubLinkedInMediumEmail

$ diagnostics --soft-skills

System Design
Structure before syntax, always
Problem Decomposition
Divide, conquer, iterate
Systems Thinking
Seeing the full picture before touching a line
Critical Analysis
Cutting through noise to find the real problem
Technical Writing
Turning complexity into clarity

// 02. Tech Stack

Tools I Build With

$ core --primary

$ stack --all

LANGJava·TypeScript·JavaScript·Python·SQL
FRONTENDReact·Next.js·Tailwind CSS·TanStack Query
BACKENDNode.js·Express.js·Spring Boot·REST APIs
DATABASEPostgreSQL·Supabase·Drizzle ORM·JPA
AI/LLMClaude AI·Gemini AI·SSE Streaming·Prompt Engineering
INFRANginx·Docker·Vercel·AWS
SECOWASP Top 10·Burp Suite·Pen Testing·Kali Linux
TOOLINGTDD·BDD / Cucumber·Git·Agile / Scrum

// 03. Live

Shipped & Deployed

Not prototypes. Not toy demos. Live, full-stack products running on real infrastructure with auth, billing, persistence, and production deployments.

Live Now
SaaS · EdTech

commit_

Finish What You Started Learning

A habit-forming curriculum tracker for self-taught developers who are great at starting but rarely finish. The entire product speaks git: a study session is a commit, your streak is a contribution graph, finishing a course is merging to main. Built around a completion loop— log a session → keep the streak → see what's next → get a nudge → celebrate → repeat. Features a smart ETA engine, a gamification layer with XP and badges, a glowing transit-style roadmap, pacing nudges that encourage instead of guilt, and daily email digests via Resend — all on SQLite locally and Postgres in production with a one-line schema swap.

Study Sessions
Timer-style quick-log — every session is a commit; the keystone of the habit loop
Streak + Grid
Daily activity lights up emerald; GitHub-style contribution heatmap
Roadmap View
Glowing transit line: completed stations lit, current one pulsing, real ETA to finish
Curriculum Engine
Programs → Semesters → Courses → Checkpoints — your degree, your rules
Pacing Nudges
"Aim for ~0.8h/day" — always encouraging, never "you're behind"
XP & Badges
Gamified milestones: Merged to Main, On a Roll, Early Bird, and more
Email Reminders
Daily cron digest via Resend; graceful console fallback in dev
ETA Engine
Smart deadline tracking with gentle reschedule — keeps momentum, never guilt
// interactive demo · click tabs to explore
https://commit.binhakim.dev/
▸ Next Up
Express.js — REST APIs
68%
⏱ aim for ~0.8h/day📅 due in 14 days
18
Day Streak
47h
Logged
1,240
XP
Recent Sessions
Express.js1.2htoday
Node.js Basics0.9hyesterday
Express.js1.5h2d ago
Next.js 16React 19TypeScriptPrisma 7Auth.js v5Tailwind v4Framer MotionSQLite → PostgresResend
Live Now
Full-Stack SaaS

Orbit

Professional Relationship OS

A full-stack Professional Relationship OS that turns your professional network into a queryable, visual, and AI-powered system. OAuth SSO via Google & LinkedIn, Gemini AI semantic search, D3 force-directed relationship graph, Stripe billing, Supabase RLS multi-tenancy, push reminders and a bilingual EN/AR interface, all deployed on Vercel.

People Dashboard
Track & organise your professional network
Relationship Graph
D3 force-directed visualisation
Gemini AI Search
Semantic queries & smart contact insights
AI Contact Intelligence
Strength scoring & smart outreach nudges
OAuth SSO
Google & LinkedIn one-click sign-in
Stripe Billing
Free + Pro subscription tiers
PWA · Offline
Installable on iOS & Android
RTL i18n
Full English + Arabic support
// interactive demo · click tabs to explore
https://byorbit.io
Search connections...
All
Colleagues
Mentors
Clients
S
Sarah Chen
VP Eng · Google
88%
M
Marcus Reid
Founder · YC W24
64%
L
Layla Al-Amin
CTO · Careem
93%
247
People
18
Active
4
Clusters
Next.js 16TypeScriptSupabaseGemini AIOAuth 2.0StripeTanStack QueryTailwind v4PWA
Live Now
Internal Platform · B2B

NexFlow

Intelligent Lead Pipeline Management

An internal B2B platform that replaced Excel-based lead tracking across 4 business entities. Built with a field-level RBAC system that strips Marketing data server-side before it reaches Sales clients — not just hidden in the UI. Features an atomic REQ code engine for conflict-free concurrent writes, Whisper AI voice transcription in Egyptian Arabic, real-time WhatsApp handoff cards, and a full audit trail logging every field change with user, timestamp, and before → after values.

REQ Code Engine
Atomic sequence locks — conflict-free under concurrent writes
Field-Level RBAC
Marketing fields stripped server-side — never sent to Sales clients
Multi-Entity Platform
HSL · MGL · MKL · HCL — isolated data, shared infrastructure
WhatsApp Handoff
Configurable lead cards sent instantly to BU coordinators
Voice Transcription
Egyptian Arabic dictation via Whisper AI, mixed Arabic/EN
Live Analytics
KPIs, pipeline stages, source ROI, sector heatmap in real time
Excel Migration
Bulk import with column mapping, conflict detection & validation
Full Audit Trail
Every field change logged: user, timestamp, before → after
// interactive demo · click tabs to explore
https://nexflow-os.vercel.app
Search by REQ code or company...
REQ CodeCompanyEntityStatus
HSL506240001Acme Industrial
HSL
With Sales
MGL506240002Cairo Steel Co.
MGL
Completed
MKL506240003Delta Machinery
MKL
Submitted
HCL506240004Nile Trading
HCL
Draft
4 Entities
247 Leads
38% Conv.
Next.js 14TypeScriptPostgreSQLPrismaNextAuth v5RechartsShadcn/uiWhisper AIPWAxlsx

// 04. Experience

Where I've Built Things

Software Engineer / IT Business Analyst

Egyptian Packaging & Plastic Systems Corp

Apr 2024 - PresentEgypt · On-site

Full-stack engineer and IT systems lead — building internal production tooling and driving data-informed decisions for executive stakeholders.

  • Designed and engineered a multi-tenant personal CRM architecture using Next.js 16, React 19, and Supabase, enforcing full data isolation exclusively at the database layer via Postgres Row-Level Security (RLS) to eliminate data-leakage vectors globally
  • Developed an interactive, real-time relationship mapping interface utilizing react-force-graph-2d and client-side cache hydration via TanStack Query v5, rendering dynamic D3 force simulations while maintaining instant optimistic UI updates
  • Implemented a metered subscription billing system using Stripe webhooks and a custom server-side Postgres usage-metering function (increment_usage), decoupling application logic from critical transaction tracking
  • Architected and shipped a multi-entity B2B lead management system that consolidated disparate operational workflows from 4 business units into a single unified platform
  • Enforced zero-trust data privacy at the API layer by implementing a 5-layer server-side security stack and field-level Role-Based Access Control (RBAC), ensuring sensitive marketing and sales fields were filtered on the server and never leaked into client network payloads
  • Engineered an Egyptian Arabic speech-to-text pipeline by implementing OpenAI Whisper with specialized context priming prompts, significantly reducing Word Error Rate (WER) for colloquial dialects and mixed English/Arabic technical terminology
  • Engineered SC 3D Optimizer, a React + Three.js web application that computes optimal container loads via a 3D bin-packing algorithm — delivering real-time 3D visualisations with door-clearance validation, multi-solution comparison, and one-click PDF export for logistics teams
  • Built the company's IT Asset Management (ITAM) platform from scratch, designing the data model and lifecycle workflows to centralise hardware and software inventory — eliminating manual tracking gaps and maintenance blind spots across the organisation
  • Owned security, reliability, and cost governance for 25+ domains and 7 production websites by implementing automated backups, wp-admin hardening, caching, image compression, and database optimisation
  • De-risked capital allocation by delivering cost-benefit and ROI analyses to executive stakeholders, translating business requirements into Power BI dashboards and written executive summaries
  • Co-architected the corporate IT department from the ground up — defining governance frameworks, technical role structure, and SOPs for access control, change management, and service delivery — scaling operations to 90+ users
  • Automated repetitive IT and reporting workflows with Python scripts, reducing manual overhead and improving consistency across operations
Node.jsExpress.jsPostgreSQLSupabaseVercelReactPythonJavaScriptREST APIsLLMsWordPressStripeGitNext.js

Offensive Security Engineer Intern

WE INNOVATE

Sep 2024 - Dec 2024Egypt · Hybrid

Executed white-box and black-box penetration testing across enterprise web, mobile, and infrastructure systems.

  • Identified and exploited vulnerabilities in real-world web, mobile, and infrastructure targets against the OWASP Top 10 framework — delivering severity-rated reports with attack-chain documentation and remediation guidance
  • Mapped attack surfaces and intercepted traffic using Burp Suite Professional, Metasploit, and Wireshark, demonstrating exploitability with proof-of-concept payloads for client-facing reports
  • Ran Active Directory and network penetration tests across enterprise environments, surfacing privilege-escalation paths and lateral-movement risks
  • Automated vulnerability scanning and security-testing workflows with Python scripts, reducing repetitive manual steps in the assessment pipeline
PythonBurp Suite ProMetasploitWiresharkOWASP Top 10Kali Linux

Software Engineer

HomeBay Furniture

Nov 2023 - Oct 2024Canada · Remote

Built and optimised the e-commerce platform for a Canadian furniture brand, improving site performance and eliminating manual catalogue overhead.

  • Engineered responsive e-commerce interfaces for Homebay.ca and extended WooCommerce's product management and checkout flows to meet evolving business requirements
  • Improved site performance and user engagement by implementing multi-layer caching, image optimisation, and database tuning
  • Built Python automation scripts integrated with the Google Sheets API to synchronise product catalogue data, eliminating manual data-entry overhead from daily operations
  • Grew organic search visibility through structured keyword analysis, meta-tag optimisation, and on-page SEO improvements
JavaScriptPythonWordPressWooCommerceREST APIsGoogle Sheets APIHTMLCSS

Software Engineer Intern

Kites Software

Aug 2023 - Nov 2023Egypt · Hybrid

Built test-driven RESTful APIs for Egypt's first SaaS ERP in an Agile/Scrum engineering team.

  • Shipped production RESTful API endpoints for a Spring Boot SaaS ERP serving Egyptian import and distribution businesses, following a strict test-first (TDD) development workflow
  • Wrote Cucumber BDD integration tests against a PostgreSQL backend, catching regression defects before they reached QA
  • Investigated and resolved QA-reported bugs, improving release stability and reducing the defect escape rate
  • Authored technical onboarding wikis documenting the team's stack and engineering practices, accelerating ramp-up time for incoming engineers
JavaSpring BootPostgreSQLREST APIsBDDCucumberGitScrumJira

Business Analyst

Tact Decorations

Jun 2022 - Aug 2023Egypt · Remote

Led the company's first digital transformation — centralising operations and redesigning cross-functional workflows from the ground up.

  • Built the company's CRM and operations hub in Notion from scratch, giving site engineers, architects, and supervisors a single platform for project communication, task assignment, and progress tracking
  • Redesigned cross-functional workflows to eliminate handoff bottlenecks, improving coordination and reducing delays between field and office teams
  • Drove the company's first digital transformation initiative — defining the tooling stack, establishing documentation standards, and producing operational playbooks adopted across departments
NotionSystems ThinkingProcess DesignDigital TransformationAutomation

Frontend Developer Intern

Information Technology Institute (ITI)

Sep 2022 - Oct 2022Egypt · Hybrid

Developed foundational frontend skills through ITI's intensive web development programme.

  • Built responsive web interfaces using HTML, CSS, JavaScript, and Bootstrap as part of ITI's structured training programme
  • Adopted Git version control and collaborative development workflows from day one
HTMLCSSJavaScriptBootstrapGit

// 05. Projects

Things I've Built

01

Throughline

Full-Stack · AI

Behavioral Intelligence Platform

Full-stack AI platform that transforms CliftonStrengths PDF reports into 14 sections of personalized, theme-grounded behavioral insights. Features parallel SSE streaming AI generation, PDF extraction via Anthropic's Files API, Neon PostgreSQL persistence, and a specificity-checking pipeline that auto-rejects generic output.

Next.jsTypeScriptClaude AIPostgreSQLDrizzle ORMClerk AuthSSE StreamingVercel BlobZod
02

EPPS Container Optimizer

Algorithms · Visualization

3D Bin Packing & Logistics Tool

Engineering tool that computes optimal product placement inside shipping containers using 3D bin packing algorithms. Real-time 3D visualization with door clearance validation, multi-solution comparison, and one-click PDF export for logistics teams.

ReactThree.jsVite3D AlgorithmsBin PackingPDF Export
03

Algorithm Visualizer

Educational · CS

Interactive CS Learning Platform

Interactive educational platform visualizing 15+ sorting, searching, graph, and tree algorithms alongside 8 core data structures in real-time. Step-by-step animations with time complexity breakdowns.

ReactViteJavaScriptCanvasAlgorithmsData Structures
04

Interpack26 Scraper

Data Engineering · Python

Automated Data Extraction Pipeline

Automated web scraping pipeline extracting structured exhibitor data from the Interpack 2026 trade show platform. Outputs clean JSON/CSV for downstream business intelligence workflows.

PythonWeb ScrapingData PipelineBeautifulSoupJSON

// 06. Writing

Thoughts & Articles

All articles

// 07. Contact

Let's build something together

I'm open to backend engineering roles, infrastructure projects, and collaborations involving systems design, APIs, or databases. Whether you have an opportunity or just want to talk tech — my inbox is always open.

binhakim.dev · Yusuf Naeem Abd El-Hakim · 2026