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Mohamed Salem Younes

Open to freelance workCairo, EgyptGMT+2, GMT+3 in summer

MohamedSalemYounes

Backend-focused Software Engineer. Python/Django, Node.js/NestJS, and PostgreSQL.

UPTIME
in production since Oct 2022
View work

ABOUT

Background

Backend-focused software engineer with 3+ years of professional experience designing, building, and maintaining production systems. Core stack is Python/Django and Node.js/NestJS, with PostgreSQL as primary database — comfortable across the full stack with React/Next.js when a project needs it. Also works with containerized deployments, cloud infrastructure on AWS and GCP, and CI/CD pipelines.

B.Sc. Computer Science, Ain Shams University (2017–2021). Native Arabic speaker, full professional proficiency in English — comfortable working async with clients across timezones.

Full bio & experience

EXPERIENCE — CHANGELOG

Where the work happened

  1. a1c7f92Presentsince Dec 2025

    Software Engineer · SaySoft

    Currently working here.

    • Build multi-tenant SaaS platforms — property/union management, live-class tutoring, fleet management, and dental clinics — with NestJS, Prisma, PostgreSQL, and React, deployed on AWS with Terraform-managed infrastructure.
    • Built Opal, a multi-branch dental clinic SaaS: 132 permission-guarded endpoints, tenant isolation enforced by Postgres row-level security, an animated SVG tooth chart, and 800+ automated tests.
    • Designed multi-tenant auth and RBAC (JWT, WhatsApp OTP, magic links), a double-entry accounting engine, and Paymob subscription billing with verified webhooks.
    • Shipped Ittihad, Fleet Management, Nuqta, Mawid, and Opal, plus client and company websites — including a photographer's portfolio with 100/100 Lighthouse accessibility and SEO.
    case studies:OpalIttihadFleet ManagementOmar AbolabanNuqtaMawidSaySoft website
    NestJSPrismaPostgreSQLReactAWSTerraformNext.js
  2. e48b310Presentsince Jun 2025

    Backend & Cloud Engineer (Part-time) · Tameni

    Currently working here.

    • Own the Django REST backend of a Flutter health app — Firebase auth, role-based access control, family profiles, and FCM push notifications.
    • Built the lab-report pipeline: PaddleOCR plus Gemini extraction in Celery, feeding a five-stage matching engine (exact, alias, fuzzy, batched Gemini, human review queue).
    • Protect patient PII with field-level encryption and hashed lookups, a two-step GDPR-style deletion flow, and audit logging on every endpoint.
    • Deploy and run production on Google Cloud (Docker, Gunicorn, Nginx); 1,000+ commits and 845 test cases.
    case studies:Tameni
    DjangoDRFCeleryGCPFirebaseGemini LLMPaddleOCR
  3. 9d2a147Mar 2025 – Dec 2025

    Software Engineer · Oasis for Advanced Technology Systems

    • Built and maintained DRF backends across medical education, real estate, clinics, and gyms.
    • Contributed to a Udemy-style medical education platform — Zoom sessions, VideoCipher streaming, Paymob subscriptions.
    • Rapidly prototyped client-facing UI/UX demos with AI-assisted coding to accelerate decisions.
    • Containerized applications with Docker and managed Linux production servers.
    Django REST FrameworkDockerLinuxPaymob
  4. 6f0c885Oct 2024 – Jan 2025

    Backend & Cloud Developer (Internship) · Coformatique

    • Developed backend services with NestJS and Prisma ORM against PostgreSQL.
    • Deployed Dockerized apps on AWS (ECS/Fargate), automated CI/CD with Bitbucket Pipelines.
    • Contributed to Scrum ceremonies and code reviews.
    NestJSPrismaAWS ECSBitbucket Pipelines
  5. 3b7e421Aug 2024 – Oct 2024

    Python Developer (Internship) · NeuronetiX

    • Implemented Python/Django backend components and refactored legacy modules for maintainability.
    • Collaborated with product and ML teams on scalable feature design.
    PythonDjango
  6. 0a49d1cOct 2022 – Apr 2024

    Software Engineer · Research & Development Center (Air Defense Commands)

    • Developed computer vision and AI-driven systems with Python, OpenCV, and C#.
    • Led facial recognition and object-tracking modules, improving accuracy and robustness.
    • Delivered secure, on-premise production solutions with cross-functional teams.
    PythonOpenCVC#Computer Vision

PROJECTS

Things I've built and shipped

DevReps

live
personal

A training log for mastering software engineering — 758 lessons across 46 domains, spaced-repetition flashcards, and a built-in AI tutor.

domains
46
lessons
758
quiz questions
2,550
Next.jsTypeScriptSupabasePostgreSQLGemini APIMDXVercel
View case study

QamoosTech (قاموس تك)

live
personal

A bilingual Arabic/English dictionary of the English words software engineers use every day — 727 terms, each with three workplace examples, a tag filter, flashcard practice, and an animated, RTL-first site.

terms
727
examples per term
3
pronunciation audio
277 of 727
Next.jsTypeScriptReactGemini APIGemini TTSVercel
View case study

Opal

live
built at SaySoft

A multi-tenant, multi-branch SaaS for dental clinics — patients, scheduling, an animated tooth chart, and the money — with tenant isolation enforced by the database itself.

api endpoints
132
automated tests
821
database tables
50
NestJSPrismaPostgreSQLReactViteTanStack QueryTailwind CSSNext.js
View case study

Ittihad

live
built at SaySoft

A multi-tenant SaaS for Egyptian building and compound unions — dues, payments, disputes, maintenance, and votes — Arabic-first, with an AI assistant that answers from the app's own docs.

backend modules
28
database models
51
backend tests
524
NestJSPrismaPostgreSQLpgvectorReactTanStack QueryAWS ECSPaymob
View case study
All 19 projects

SKILLS

stack.json

"languages":
["Python", "TypeScript", "JavaScript", "Go", "C#", "SQL"],
"frameworks":
["Django", "Django REST Framework", "NestJS", "React", "Next.js", "Prisma", "OpenCV", "Pandas", "NumPy"],
"cloud_devops":
["AWS", "Google Cloud Platform", "Docker", "Docker Compose", "Git", "Nginx", "Gunicorn", "Celery", "Redis", "CI/CD"],
"databases":
["PostgreSQL", "MySQL", "SQLite", "MongoDB"],
"integrations":
["REST APIs", "WebSockets", "JWT Auth", "OAuth", "Firebase (FCM)", "Paymob", "Socket.IO", "Gemini LLM", "Claude / Claude Code"]

ACHIEVEMENTS

Certificates & competitions

2nd Place — NeuronetiX Hackathon

ANTHROPIC · CLAUDE

3 verified
LeetCode(opens in a new tab)HackerRank(opens in a new tab)

CONTACT

Start a project

Available for freelance backend and fullstack work, evenings/weekends, Cairo, Egypt time (GMT+2, GMT+3 in summer). The fastest way to reach me is email.

mohamed_salem_ali@outlook.com
WhatsApp(opens in a new tab)+20 112 595 7283LinkedIn(opens in a new tab)GitHub(opens in a new tab)
Full contact formServices & scope