Senior Software Engineer, New Verticals

qlubAmsterdamHybridFull-time7 Oct 2026

qlub is hiring a Senior Software Engineer for its New Verticals team in Amsterdam, working hybrid. The role focuses on directing AI agents to build and operate secure payment services and agentic products for salons, requiring production software experience and hands-on work with LLM APIs and agentic workflows.

What you'll do

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 settlement
Own integrations with salon management and booking platforms, payment providers, financial partners and other third-party systems, specified and delivered through agents
Write the specs, acceptance criteria, test suites and evals that define "done", so agent output is verified by evidence rather than by reading the code
Design 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 deployed
Build 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 actions
Put permissions, human approvals, guardrails, observability, audit trails and fallbacks around every agent that can touch money, client data or a salon's calendar
Find and fix bottlenecks in speed, reliability, security and cost, including LLM and agent cost

What you need

Must-have

LLM APIsTool callingRetrieval-augmented generationAgentic workflowsREST APIsMicroservicesAsynchronous processingDistributed systems

Nice-to-have

Payment gatewaysTransaction processingSettlementReconciliationChargeback systemsModel evaluationPrompt managementContext management

Soft skills

Problem-solvingCommunicationOwnershipOperator mindsetFast decision-making

Senior Software EngineerFintechPaymentsAI AgentsLLMAgentic WorkflowsHybridAmsterdamFull-time

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Must-have

Nice-to-have

Soft skills

What you'll do

What you need