Senior Full Stack Developer - React, Next.js, TypeScript, Node.js

ALADDIN MHEMED

Senior Full Stack Developer / Software Architect (Remote)

Mersin, Türkiye +90-539-***-**** ********@*****.*** linkedin.com/in/admhemed github.com/admhemed

PROFESSIONAL SUMMARY

Senior full stack developer and software architect with 20 years of experience across telecom, banking, fintech, and healthcare. Builds the systems that turn high-volume data into decisions people can act on in seconds: real-time monitoring platforms for MTN's network operations, a transaction-risk system delivered for Barclays, and the full stack (database, backend, frontend, deployment) of an AI-driven medical education product. Currently designing self-hosted AI and analytics systems for institutions that cannot put their data on a public cloud. Fast at stepping into unfamiliar codebases and turning ambiguous domains into a clear technical plan.

CORE SKILLS

Frontend: React, Next.js (SSR/SSG), TypeScript, Angular (1.x-8), design-system architecture, frontend team leadership.

Backend and data: Node.js, NestJS, PHP, PostgreSQL, MySQL, Prisma, Redis, REST/GraphQL APIs, Apache Kafka, PrestoDB, Neo4j/Cypher, multi-tenant platform design.

AI: self-hosted LLMs (Ollama), RAG and embeddings, OpenAI GPT-3 integration, prompt engineering.

Security and performance: SQL injection/XSS remediation, PCI-compliant Stripe payments, KYC flows, caching, code-splitting.

Delivery: CI/CD (CircleCI, GitHub), Jest, Cypress, Agile/Scrum, technical documentation.

Data visualization: D3.js, SVG, Canvas, Chart.js, ECharts.

PROFESSIONAL EXPERIENCE

Independent Developer - Self-Hosted AI & Analytics Systems (Remote) Jan 2026 - Present

- Designing self-hosted AI and analytics systems for organizations with strict data-residency requirements: local LLM deployment, RAG over private documents, dashboards, and alerting engines running inside the client's infrastructure.

- Architecting a general-purpose analytics platform (ingestion, dashboards, alerting, Arabic natural-language querying via a local LLM) with a shared core and per-sector configuration.

- Delivering high-performance Next.js applications (multi-layer caching, Sharp image pipelines, PM2 deployment) and REST integration/migration work.

Senior Frontend Developer - KOPA Market (Los Angeles, remote) Apr 2024 - Dec 2025

- Led frontend architecture and implementation in React and TypeScript for a fractional real-estate investment platform, including the KYC/identity-verification interface.

- Improved key customer flows through code-splitting, asset optimization, and disciplined state management.

- Established reusable component and design-system patterns that reduced duplication across new features.

Full Stack Developer - Freelance via Toptal (remote) May 2019 - Mar 2024

- Lead Frontend Developer, WingAlpha (New York, remote), Sep 2019 - Aug 2022: promoted from frontend developer to team lead; defined quality, performance, security and testability benchmarks; built automated UI test suites; architected a purchase flow spanning five external systems (payments, Affirm/Katapult financing, AT&T/Tracfone activation) with compensating logic for partial failures; mentored junior developers.

- Full Stack Developer, SEI Healthcare Ltd., 2023: designed and built the complete architecture (database, backend, frontend, deployment) of a GPT-3-powered medical-education MVP, delivered ahead of schedule.

- Full Stack Developer, Ruthless Co., 2023: modernized a healthcare application (SPA to Next.js SSR, legacy RxJS/NestJS/Prisma refactor), fixed SQL-injection and XSS vulnerabilities, added Redis caching, PCI-compliant Stripe PaymentIntent checkout and WCAG accessibility improvements.

- React Developer, Spectrum Environmental Solutions, 2022: joined an existing enterprise codebase for real-time air-monitoring dashboards and improved CI/CD pipeline reliability.

- React Developer, Gnosis Enterprises Holdings, 2020: built quiz, chatbot and AI-evaluation tools for a medical-education platform with real-time updates via Socket.IO.

- Frontend / Data Visualization, BCG Gamma, 2019-2020: delivered D3.js/SVG/Canvas data-visualization components for React applications.

Senior Frontend Developer - LigaData (remote) Apr 2016 - Jul 2019

- Architected real-time KPI dashboards for MTN's network operations on Apache Kafka streaming, with Flare (data normalization), Kamanja (ML anomaly detection) and Socket.IO for live delivery.

- Built a security threat-call monitoring dashboard for MTN Guinea, with the supporting REST API and PrestoDB queries over big-data call records.

- Delivered a transaction-risk monitoring platform for Barclays as a project within this engagement: real-time alert-detection dashboards in Angular and D3.js.

- Built MERN/MEAN SaaS analytics platforms giving telecom operators visibility into network performance and customer behavior.

EARLIER EXPERIENCE

- Frontend Developer, Orda Teknoloji (Istanbul), Oct 2015 - Mar 2016: social-media monitoring SaaS for journalists unifying REST APIs of four platforms into one real-time analytics view (React, Node.js, D3.js, Stripe).

- Full Stack Engineer, Interchangeworks (Canada, remote), Jan 2014 - Aug 2015: D3.js/Canvas/SVG data visualization for an enterprise dental-practice management system (AngularJS).

- Full Stack Engineer, EiwanArts (Homs, Syria, serving Saudi private-sector clients), Dec 2004 - Jan 2014: designed and built a configurable multi-tenant HR/administrative platform (PHP, MySQL, JavaScript) adopted by multiple contractor companies; sole architect, developer and DBA for nine years.

SELECTED PROJECTS

- Graph Builder (Neo4j/Cypher): graph-based organizational-structure builder with real-time updates and proactive alert detection; Angular/D3.js/Fabric.js frontend on AWS Elastic Beanstalk.

- WebJacket: e-commerce product-customization platform (HTML5 Canvas, Fabric.js) with Node.js/TypeScript/PostgreSQL backend and Authorize.net payments.

- Self-hosted analytics platform (in progress): ingestion, dashboards, alerting and Arabic natural-language querying over a local LLM.

EDUCATION

BSc, Informatics Engineering - University of Homs. Ranked 1st in class (1st year) and 3rd in class (3rd year).

LANGUAGES

Arabic (native), English (professional working proficiency)

AVAILABILITY

Remote, flexible time zones (US overlap hours preferred). Holds Turkish and Syrian citizenship.

Contact this candidate