Software Engineer - AI Native Development at Qlub | Berlin, DE | Rezi

Software Engineer - AI Native Development at Qlub

Software Engineer - AI Native Development

Qlub · Berlin, DE

1 months ago

Software Engineer - AI Native Development

Qlub · Berlin, DE

a month ago
Resume preview

Impress employers and recruiters.
Choose from hundreds of resume examples.

Target Resume Now
Resume preview

Tailor your resume to this Software Engineer - AI Native Development role.

Rezi rewrites your resume against Qlub's job description. Free.

Resume score gauge reading 58 out of 100

Don't guess if your resume is good enough.

See how it scores against the Software Engineer - AI Native Development posting at Qlub — free, in seconds.

About the Role

qlub is scaling fast across markets worldwide, and we look for people who take real ownership of their work. As our next Software Engineer, you'll help drive our growth in engineering platforms by building, shipping, and delivering results from day one. You'll work closely with engineers, operators and partners to turn frictionless payments into real growth for restaurants. 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, this role is for you.

Responsibilities

  • Design, build, and operate secure, scalable, and highly reliable payment services, including payment gateways, transaction processing, reconciliation, and settlement flows
  • 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

Requirements

  • Proven experience in building production-grade software applications
  • Fluency in English is a must
  • Excellent problem-solving and communication skills
  • Hands-on experience with Golang
  • Practical experience with LLM APIs, tool calling, retrieval-augmented generation, or agentic workflows
  • Experience designing and implementing secure and scalable software solutions
  • Strong knowledge of REST APIs, microservices, asynchronous processing, and distributed systems
  • Proficiency in databases, data modelling, and database design concepts
  • Experience with POS systems, payment providers, or complex third-party integrations
  • Experience building or integrating production AI applications
  • Understanding of AI-system risks, including hallucinations, prompt injection, data leakage, non deterministic behaviour, and unsafe tool execution
  • Experience with automated testing, observability, debugging, and performance optimization

Skills

  • Golang
  • LLM APIs
  • Tool calling
  • Retrieval-augmented generation
  • Agentic workflows
  • REST APIs
  • Microservices
  • Asynchronous processing
  • Distributed systems
  • Databases
  • Data modelling
  • Database design
  • POS systems
  • Payment providers
  • Third-party integrations
  • AI applications
  • Automated testing
  • Observability
  • Debugging
  • Performance optimization
  • Payments
  • Fintech
  • Hospitality tech
  • Marketplace
  • Payment gateways
  • Transaction processing
  • Settlement
  • Reconciliation
  • Chargeback systems
  • AI agents
  • Model evaluation
  • Prompt management
  • AI observability
  • Guardrails
  • LLM cost optimization
  • Vector databases
  • Embeddings
  • Semantic search
  • Retrieval systems
  • Cloud platforms
  • Containerized services
  • CI/CD
  • Infrastructure-as-code
  • PCI DSS
  • Data privacy
  • Secure software-development practices
  • React
  • Modern frontend development

Experience Level

  • Fast-moving, high-growth environment experience
  • Experience building production-grade software applications

Benefits

  • 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

About the Company

  • qlub removes friction from the end of a great meal by allowing guests to scan a QR code and pay in seconds, with no app or download required.
  • From Pay-at-Table and Digital Menus to Order-and-Pay, Payment Links, and SoftPOS terminals, qlub handles the full payment experience so restaurants can focus on 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.