Senior Backend Engineer

Why Qlub: The end of a great meal shouldn't be the slow part. Waiting for the check, finding someone to take payment, splitting a bill by hand. qlub removes that friction. Guests scan a QR code and pay in seconds. No app, no download, no waiting. From Pay-at-Table and Digital Menus to Order-and-Pay, Payment Links, and SoftPOS terminals, we handle the full payment experience so restaurants can focus on what they do best: great hospitality. Less friction means faster table turnover, smoother operations, and higher profit. We're a fast-scaling fintech backed by Mastercard, Mubadala, e& and Shorooq. $72M raised, live across multiple markets worldwide, and headcount doubled in the past year. We're building the teams that take us to the next stage. The role: qlub is scaling fast across markets worldwide, and we look for people who take real ownership of their work. As our next Senior Backend Engineer – Payments, you'll help drive our growth across our engineering and payment platforms by building secure, scalable, and reliable products from day one. You'll work closely with product, engineering, operations, and external partners to deliver seamless payment experiences for restaurants and diners. You will also use AI-assisted development practices throughout the software development lifecycle and contribute to AI-powered and agentic systems that can reason, retrieve information, use tools, and execute controlled workflows. If you thrive in a fast-moving, build-from-scratch environment and enjoy solving complex problems across payments, integrations, and AI-enabled software, this role is for you. What you'll own: Design, build, and operate secure, scalable, and highly reliable payment services, including payment gateways, transaction processing, reconciliation, and settlement flows Deliver backend features using Golang across customer-facing, restaurant-facing, and internal platforms Build and maintain integrations with POS systems, payment providers, financial partners, and other third-party platforms Use AI-assisted development tools for discovery, implementation, debugging, testing, code review, documentation, and refactoring while maintaining strong engineering quality standards Design and develop AI-powered and agentic workflows that can retrieve data, call tools, interact with internal systems, and execute controlled actions Implement appropriate permissions, human approvals, guardrails, observability, auditability, and fallback mechanisms for agentic systems Identify performance bottlenecks and improve the speed, reliability, security, and cost efficiency of payment and AI-powered workflows Write clean, maintainable, tested, and well-documented code that follows software engineering and financial-system security best practices with AI Contribute to technical design discussions, architecture decisions, engineering standards, and continuous improvement across the team Who you are: You've built and operated…