Senior Software Engineer HF (M/F)

About the role

The HiPay platform allows merchants to benefit from multiple payment methods and journeys for their customers via a single integration. Ensuring payment performance is at the heart of our business, providing fluid experiences to our merchants to support their international development while reducing cart abandonment. In this ecosystem, consumers, in e-commerce and in-store, want the possibility to pay with their preferred payment methods. Meeting this expectation allows our merchants to increase their sales and build customer loyalty by reducing cart abandonment. By integrating our services, they benefit from a complete view of their flow from payment initiation to bank reconciliation. The richness of payment methods offered to our merchants in a single integration is one of HiPay's main assets. The team constantly integrates new APIs into our platform, in close partnership with acquiring banks and payment method providers, whether global (PayPal, Visa, Mastercard...), local, or Wallets (Apple Pay). The growth of our business requires the recruitment of a Senior Software Engineer (M/F) to evolve our platform to ensure the scalability of our model by meeting performance requirements. Our ability to modernize our architectures is therefore a major challenge for the team. Within the 6-person Point of Sales team: * You develop product evolutions, from technical analysis to production deployment, including tests. * You evolve and make existing services more reliable with the same rigor as new code. * You participate in architectural choices for new projects. * AI is an integral part of how we work, across the entire chain: design, code writing and review, tests, CI/CD, and incident analysis. * You actively contribute to evolving these practices to deliver faster and more securely. Graduated with a Bac+2 / Bac+5 degree in computer engineering oriented towards software development, you have at least 5 years of experience. Understanding CI/CD topics and AI is a real asset. * You master TypeScript and Node.js in production, and you know how to write code that remains readable and reliable when the stake is that a payment goes through every time. * You like complex problems: you know how to analyze them, break them down, and choose the simplest solution that works. * You have a real DevOps culture: CI/CD, infrastructure as code, and the reflex to feel responsible for what you deploy, right up to production. * You are curious about the business side: in-store payment has its rules, its actors, and its constraints, and you want to understand them in depth to propose the most relevant solutions. * You are curious about the tech side: you follow what is emerging, you test, and you like to bring to the team the tools and practices that make a difference, with AI at the forefront. Remuneration: to be negotiated.