Senior Software Engineer, New Verticals

Qlub Pay — Germany · Posted ~4 hours ago

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Description

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 At qlub, engineers don't write code by hand anymore, and they don't read it line by line either. AI agents do the implementation. Our engineers decide what gets built, specify it precisely, direct the agents, and prove the result is correct and safe before it touches a single payment. As our next AI Engineer, you'll own that loop end to end: from turning a salon's problem into a clear spec, to orchestrating agents that build, test and ship it, to verifying it through tests, evals and observability rather than code review by eye. You'll ship real results from day one. You'll also build the agentic systems our salons and teams use: agents that reason, retrieve information, call tools and execute controlled workflows across bookings, payments and operations. You'll work closely with product, operations, salon partners and booking-platform partners to turn frictionless payments into real growth for beauty businesses. If you thrive in a fast-moving, build-from-scratch environment and you already work this way, this role is for you. What You’ll Own Direct AI agents to design, build and operate secure, reliable payment services for salons: checkout, booking deposits and no-show fees, tips and tip splitting across staff, refunds, reconciliation and settlementOwn integrations with salon management and booking platforms, payment providers, financial partners and other third-party systems, specified and delivered through agentsWrite the specs, acceptance criteria, test suites and evals that define "done", so agent output is verified by evidence rather than by reading the codeDesign and run the agentic development workflow itself: which agents do what, how they're prompted and given context, and how their work is checked, merged and deployedBuild AI-powered and agentic products for salons and internal teams, such as agents that answer client questions, manage booking and payment exceptions, or handle reconciliation, using retrieval, tool calling and controlled actionsPut permissions, human approvals, guardrails, observability, audit trails and fallbacks around every agent that can touch money, client data or a salon's calendarFind and fix bottlenecks in speed, reliability, security and cost, including LLM and agent cost Who You Are You already build with agents as your default way of working, not as an add-on to hand-codingYou've shipped production software in a fast-moving, high-growth environmentYou move fast and make strong decisions with incomplete informationYou take real ownership and think like an operator, not a coordinatorYou're energised by hard problems in payments, beauty and wellness, and client experienceYou trust evidence over output: if it isn't tested, measured and observable, it isn't done What You’ll Need Proven experience shipping production-grade software, with a track record of doing it through AI coding agentsFluency in English is a mustExcellent problem-solving and communication skillsHands-on experience with LLM APIs, tool calling, retrieval-augmented generation and agentic workflows in productionStrong grasp of system design: REST APIs, microservices, asynchronous processing and distributed systemsSolid knowledge of databases, data modelling and database designExperience with payment providers, booking or POS systems, or complex third-party integrationsA clear understanding of AI-system risks: hallucinations, prompt injection, data leakage, non-deterministic behaviour and unsafe tool execution, and how to contain themExperience with automated testing, evals, observability, debugging and performance optimisation Nice to have Experience in payments, fintech, beauty and wellness tech, booking platforms or a high-growth marketplaceExperience with payment gateways, transaction processing, settlement, reconciliation, or chargeback systemsExperience building agents that operate on APIs, databases, internal tools or operational workflowsFamiliarity with model evaluation, prompt and context management, AI observability, guardrails or LLM cost optimisationExperience running multiple coding agents in parallel, or building the tooling and CI that keeps them safeExposure to vector databases, embeddings, semantic search or retrieval systemsExperience with cloud platforms, containerised services, CI/CD and infrastructure-as-codeFamiliarity with PCI DSS, GDPR and secure development practices What we offer Real ownership over products that impact millions of diners and thousands of restaurants globally The opportunity to solve challenging problems in payments, hospitality, and customer experience A fast-moving environment where great ideas quickly become reality Close collaboration with experienced operators, builders, and industry experts A chance to leave a visible mark on one of the fastest-growing restaurant technology companies globally Ready to build? Join us and help shape how the world pays at the table. If that excites you, apply now.