Freelancer profile translated to English.
Back to original languageAbout Med Achref
Technical and functional architect with over 7 years of experience in the design, structuring, and evolution of highly critical information systems.
Computer engineering graduate, I built my career on a complete technical progression, from Full-Stack PHP developer to Lead Developer, before evolving into an architect role. This trajectory allows me today to combine a macro-architectural vision with a fine mastery of implementation.
I am involved in the design of modular, scalable, and secure architectures, primarily in PHP / Symfony environments. My expertise covers the implementation of microservices and API-First architectures, REST/SOAP API integration, real-time webhook management, and asynchronous process orchestration via RabbitMQ.
I also work on containerization and environment industrialization (Docker), CI/CD pipeline optimization (Jenkins, GitLab), and the implementation of monitoring, alerting, and resilience strategies to ensure platform high availability.
Specializing in payment ecosystems, I have developed expertise in transactional flows, regulatory compliance (PSD2, PCI-DSS), KYB onboarding, and the integration of multichannel banking gateways. I pay particular attention to application security: strong authentication, SSO, role management, Symfony Voters.
Beyond the technical aspects, I act as an interface between business and technical teams: requirements framing, specification writing, technological choices, architecture governance, and team support through mentoring, code reviews, and quality standards implementation.
My vision: to design robust, scalable architectures aligned with business objectives, capable of supporting long-term product growth.
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Score and Secure PaymentTechnical and Functional ArchitectBANKING AND INSURANCEJanuary 2024 - Today (2 years and 5 months)FranceIntegration of third-party solutions:Close collaboration with external partners for the integration of third-party APIs and services, setting up secure connections (strong authentication, encryption, certificate management), and optimizing call performance through caching strategies, retries, and fine-grained timeout management.Software Infrastructure & Industrialization:Design and management of Dockerized environments, orchestration of asynchronous processes (messaging, workers), and optimization of CI/CD pipelines to industrialize deployments, make production releases reliable, and reduce time-to-market.Monitoring Critical Processes:Implementation of advanced monitoring systems, real-time dashboards, proactive alerting systems, and resilience strategies (retry, circuit breaker, fallback) to ensure high availability and minimize service interruptions.Technical & Functional Documentation:Writing architecture documentation, technical guides, functional specifications, and development standards to ensure maintainability, knowledge transfer, and solution longevity.Cross-Team Coordination:Interface role between business, product, and technical teams: requirements framing, cross-functional project management, prioritization of critical issues, and monitoring of performance indicators (quality, deadlines, SLA).Payment Solution Responsibility:Leading the management and optimization of a high-volume payment platform, with a focus on advanced security, transaction reliability, and financial flow performance.Payment Domain Expertise:Developing in-depth expertise in payment ecosystems: regulatory compliance (PSD2, PCI-DSS), integration of multichannel gateways, securing banking exchanges, and optimizing end-to-end transactional processes.
- Score and Secure PaymentLead Developer PHPJanuary 2022 - January 2024 (2 years)FranceTechnical Management & Leadership:Supervising and leading a team of developers, with operational management of activities, proactive priority management, and workload arbitration to ensure project commitments, delivery deadlines, and expected quality levels are met.Architecture Design & Evolution:Close collaboration with product, business, and technical teams to design scalable, maintainable, and business-aligned application architectures, while anticipating performance, scalability, and security issues.Industrialization & CI/CD:Implementation and optimization of continuous integration and deployment pipelines, automation of build, test, and release processes, contributing to reducing time-to-market and strengthening application stability in production environments.Development Standards & Software Quality:Definition, formalization, and deployment of development standards: code best practices, TDD, code reviews, automated testing strategies, and quality tools, ensuring solution maintainability and longevity.Training & Mentoring:Supporting developers through regular code review sessions, individualized technical coaching, skill-building workshops, and dissemination of software engineering best practices within teams.
- Score and Secure PaymentPHP Research and Development EngineerJanuary 2019 - January 2022 (3 years)FranceContributing to the development of an omnichannel payment solution aimed at simplifying transactions and providing a smooth, secure user experience that complies with regulatory requirements.Project Team:2 Project Managers · 2 Testers · 1 Lead Developer · 5 Full-Stack PHP DevelopersMethodology: Agile ScrumKey Achievements:KYB Control System:Design and development of a Know Your Business (KYB) verification and compliance module to secure onboarding and meet regulatory requirements.Payment Method Integration:Integration via APIs of multiple payment solutions (credit cards, bank transfers, direct debits, checks) in collaboration with external providers, managing security protocols and optimizing flows.Real-time Webhooks & Callbacks:Implementation and management of real-time transactional notifications to ensure reliable synchronization of payment statuses.Banking Flow Processing:Development of secure mechanisms for processing incoming and outgoing financial flows, in compliance with standards.Asynchronous Systems:Implementation of asynchronous processing via RabbitMQ to improve transaction resilience, scalability, and fluidity.Microservices Architecture:Development of dedicated microservices promoting modularity, functional domain isolation, and load scaling.Monitoring & Alerting:Deployment of supervision tools, performance metrics, and proactive alerts to anticipate and manage anomalies.Administrator & User Back-Office:Design of management dashboards for controlling users, transactions, and financial operations.Optimization of Banking Exchanges:Improving communications with banking partners to ensure fast, reliable, and secure transactions.E-commerce Modules:Development
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Education
- National Engineering Diploma in Computer ScienceISITCOM-HammamSousse2017Diplôme national d'ingénieur en Informatique
- Applied Bachelor's Degree in Computer Network TechnologyISIMA2014Licence appliquée en technologie réseau informatique