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I'm Ali Habib Haydar, a Beirut-based Full Stack Engineer with 6+ years of experience designing and delivering scalable web and mobile applications, with a strong backend focus on API-driven and transactional systems. I have built SaaS platforms, integrated complex third-party APIs, and implemented secure payment workflows with webhook-based asynchronous processing. I also have hands-on experience in travel booking systems, including flight API integrations and transaction lifecycle management.\n\nI thrive on building reliable backend architectures using Node.js, NestJS, and Python (FastAPI), and delivering robust frontends with Angular and Flutter. I also manage Linux-based production environments, VPS hosting, Nginx configurations, and CI/CD pipelines to ensure stable deployments.…I'm Ali Habib Haydar, a Beirut-based Full Stack Engineer with 6+ years of experience designing and delivering scalable web and mobile applications, with a strong backend focus on API-driven and transactional systems. I have built SaaS platforms, integrated complex third-party APIs, and implemented secure payment workflows with webhook-based asynchronous processing. I also have hands-on experience in travel booking systems, including flight API integrations and transaction lifecycle management.\n\nI thrive on building reliable backend architectures using Node.js, NestJS, and Python (FastAPI), and delivering robust frontends with Angular and Flutter. I also manage Linux-based production environments, VPS hosting, Nginx configurations, and CI/CD pipelines to ensure stable deployments.

Ali Habib Haydar

Full Stack Developer, Back-End Developer, Web Developer, +3

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I'm Ali Habib Haydar, a Beirut-based Full Stack Engineer with 6+ years of experience designing and delivering scalable web and mobile applications, with a strong backend focus on API-driven and transactional systems. I have built SaaS platforms, integrated complex third-party APIs, and implemented secure payment workflows with webhook-based asynchronous processing. I also have hands-on experience in travel booking systems, including flight API integrations and transaction lifecycle management.\n\nI thrive on building reliable backend architectures using Node.js, NestJS, and Python (FastAPI), and delivering robust frontends with Angular and Flutter. I also manage Linux-based production environments, VPS hosting, Nginx configurations, and CI/CD pipelines to ensure stable deployments.…I'm Ali Habib Haydar, a Beirut-based Full Stack Engineer with 6+ years of experience designing and delivering scalable web and mobile applications, with a strong backend focus on API-driven and transactional systems. I have built SaaS platforms, integrated complex third-party APIs, and implemented secure payment workflows with webhook-based asynchronous processing. I also have hands-on experience in travel booking systems, including flight API integrations and transaction lifecycle management.\n\nI thrive on building reliable backend architectures using Node.js, NestJS, and Python (FastAPI), and delivering robust frontends with Angular and Flutter. I also manage Linux-based production environments, VPS hosting, Nginx configurations, and CI/CD pipelines to ensure stable deployments.

Available to hire

I’m Ali Habib Haydar, a Beirut-based Full Stack Engineer with 6+ years of experience designing and delivering scalable web and mobile applications, with a strong backend focus on API-driven and transactional systems. I have built SaaS platforms, integrated complex third-party APIs, and implemented secure payment workflows with webhook-based asynchronous processing. I also have hands-on experience in travel booking systems, including flight API integrations and transaction lifecycle management.\n\nI thrive on building reliable backend architectures using Node.js, NestJS, and Python (FastAPI), and delivering robust frontends with Angular and Flutter. I also manage Linux-based production environments, VPS hosting, Nginx configurations, and CI/CD pipelines to ensure stable deployments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Arabic

Fluent

English

Advanced

French

Intermediate

Work Experience

Freelancing Full Stack Engineer at Independent / Freelance

December 1, 2018 - Present

Managed a network of freelancers for large-scale projects, coordinating task distribution, quality assurance, and project timelines. Directed end-to-end mobile lifecycle, including successful deployments on Google Play and Apple App Store. Built modular, API-driven backends using Node.js, NestJS, and Python (FastAPI), adhering to clean architecture and dependency injection principles. Developed cross-platform mobile applications using Flutter and Android, integrated with secure RESTful APIs for real-time data synchronization. Automated deployment workflows via CI/CD, Linux VPS management, and Nginx configurations.

Software Engineer at Libanux Software Solutions

August 1, 2023 - Present

Founded and scaled Libanux Software Solutions, overseeing end-to-end business operations, client acquisitions, and technical strategy. Managed and mentored a team of developers and trained 10+ interns, conducting code reviews and technical workshops to ensure high-quality delivery standards. Orchestrated the full DevOps lifecycle, managing production Linux VPS environments, Nginx reverse proxies, and automated CI/CD pipelines. Engineered high-performance backend systems by integrating Redis, Memcached, and RabbitMQ to handle high-concurrency traffic and distributed messaging. Architected backend services using NestJS and Clean Architecture principles to increase code maintainability and team velocity. Integrated complex external APIs, including booking and financial services, while ensuring high reliability for transactional workflows. Led client relations and project discovery phases, translating complex business requirements into technical roadmaps for diverse stakeholders.

Software Engineer at CapitalSky

October 1, 2024 - October 1, 2025

Designed a robust financial management system integrated with multiple payment gateways, featuring a secure Pay-by-Link workflow for streamlined transactions. Architected the frontend using an Angular Workspace (Monorepo), creating three distinct, role-specific applications (User, Admin, Super-Admin) to manage complex permissions and workflows. Developed a high-performance flight booking engine by integrating LCC and GDS APIs, managing the full booking lifecycle from search to ticketing. Implemented idempotent transaction logic and failure recovery strategies, eliminating duplicate charges and ensuring 100% data consistency across distributed systems. Streamlined payment reconciliation by integrating gateways with webhook-based asynchronous confirmation handling.

Freelancing Full Stack Engineer at Freelancing

December 1, 2018 - Present

Managed a network of freelancers for large-scale projects, coordinating task distribution, quality assurance, and project timelines. Directed the end-to-end mobile lifecycle, including deployment and maintenance on Google Play Store and Apple App Store. Built modular, API-driven backends using Node.js, NestJS, and Python (FastAPI). Developed cross-platform mobile applications using Flutter and Android, integrated with secure RESTful APIs for real-time data synchronization. Automated deployment workflows using CI/CD pipelines, Linux VPS management, and Nginx configurations.