About Abderaouf
I build, optimize, and debug high-performance Node.js/NestJS backend APIs for e-commerce, dashboards, internal operations, auth, and database workflows.
My primary stack includes NestJS, TypeScript, PostgreSQL, Redis, Docker, and REST/GraphQL APIs. I also possess rare production experience designing custom Node.js middleware to integrate legacy and enterprise systems with the SAP S/4HANA Service Layer.
If your backend is slow, failing under load, missing critical features, or has broken integrations, I can step in, diagnose the root cause, and deliver clean, production-grade code.
Arabic
Native or bilingual
English
Fluent
French
Conversational
Remote only
Primarily works remotely
Experience
- Pharmainvest SPABackend EngineerPHARMACEUTICALS INDUSTRYSeptember 2022 - Today (3 years and 10 months)El Eulma, SF, Algeria• Integrated backend services with SAP S/4HANA using Service Layer APIs, XSJS, and Calculation Views to unify operational data exchange across internal platforms• Built and maintained production systems digitizing pharmaceutical supply-chain workflows, supporting 1,000+ orders/day for a distributor with 5% national market share• Architected a Preparation API from scratch with DDD and Hexagonal Architecture, serving a Kotlin mobile app and Angular dashboard across 4 RBAC roles with RSA/JWKS-based authentication• Co-developed a Sales platform (API + Angular) used daily by 30+ sales representatives to manage 300+ client interactions and high-volume order workflows• Partnered with business stakeholders to convert operational requirements into scalable technical solutions, proposing workflow improvements adopted in production• Mentored teammates on backend architecture, code review practices, and delivery standards within Agile workflows
- FreelanceFull-Stack DeveloperOctober 2024 - Today (1 year and 9 months)• ● Delivered 2 end-to-end web projects from requirements through post-launch maintenance, including database management, API integrations, and VPS deployment• ● Built SEO-focused Angular SSR applications with responsive, accessible interfaces and strong Core Web Vitals• ● Managed Hostinger VPS deployments with Nginx and PM2 for frontend and backend services
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Education
- Master's inUniversity Ferhat Abbas2022Master's in