This role is focused on designing, building, and maintaining reliable financial platforms, particularly in payment systems and ledger architectures, ensuring the integrity, scalability, and security of transactions.Responsibilities:- Design, develop, and maintain backend services using PHP (Laravel) - Build and manage payment processing workflows (wallets, transfers, settlements, reconciliation) - Design and maintain ledger systems ensuring accuracy, idempotency, and auditability - Ensure data consistency and integrity across high-volume transaction systems - Integrate with external payment providers, banks, and third-party APIs - Optimize system performance, scalability, and reliability - Implement security best practices (encryption, access control, fraud prevention) - Write clean, well-documented, and testable code - Participate in architectural decisions and technical reviews - Collaborate closely with product, frontend, and DevOps teams.Must Haves:- 5+ years of experience as a Backend Engineer - Strong proficiency in PHP and Laravel - Proven experience with payments platforms, fintech systems, or digital wallets - Solid understanding of double-entry ledger systems - Experience with relational databases (MySQL, PostgreSQL) - Knowledge of RESTful APIs and microservices architecture - Experience handling high-throughput, low-latency systems - Strong understanding of transactional systems, consistency, and concurrency - Familiarity with Git, CI/CD pipelines, and Agile development - Experience with scalability of a set of PHP Laravel apps. - Previous experience working in startups environment. - Candidates must be located in national territory - Advanced level of frenchNice to Haves:- Experience with cloud services (AWS, Azure) - Knowledge of additional programming languages (e.g., Python, Java) - Experience with containerization (Docker, Kubernetes)