Q

Senior Software Engineer, New Verticals

Qlub•Technology
Berlin, GermanyVollzeitVor Ortvor 14 Stunden
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📄Stellenbeschreibung

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 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

Who you are

You already build with agents as your default way of working, not as an add-on to hand-coding
You've shipped production software in a fast-moving, high-growth environment
You move fast and make strong decisions with incomplete information
You take real ownership and think like an operator, not a coordinator
You're energised by hard problems in payments, beauty and wellness, and client experience
You 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 agents
Fluency in English is a must
Excellent problem-solving and communication skills
Hands-on experience with LLM APIs, tool calling, retrieval-augmented generation and agentic workflows in production
Strong grasp of system design: REST APIs, microservices, asynchronous processing and distributed systems
Solid knowledge of databases, data modelling and database design
Experience with payment providers, booking or POS systems, or complex third-party integrations
A clear understanding of AI-system risks: hallucinations, prompt injection, data leakage, non-deterministic behaviour and unsafe tool execution, and how to contain them
Experience 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 marketplace
Experience with payment gateways, transaction processing, settlement, reconciliation, or chargeback systems
Experience building agents that operate on APIs, databases, internal tools or operational workflows
Familiarity with model evaluation, prompt and context management, AI observability, guardrails or LLM cost optimisation
Experience running multiple coding agents in parallel, or building the tooling and CI that keeps them safe
Exposure to vector databases, embeddings, semantic search or retrieval systems
Experience with cloud platforms, containerised services, CI/CD and infrastructure-as-code
Familiarity 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.

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Job-Übersicht

Veröffentlicht
13. Oktober 2026
Standort
Berlin, Germany
Beschäftigungsart
Vollzeit
Arbeitsmodell
Vor Ort

Unternehmen

Q

Qlub

Berlin, Germany
Unternehmensprofil ansehen
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Ich bin interessiert