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Full Stack Software Engineer - Payments B2B

1 week ago
Spain, Italy
Full-time
Mid Level
Full-stack Engineer
Software Development
AWS Cypress Datadog Java Jest Kubernetes PostgreSQL RabbitMQ React Spring Boot TypeScript
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Treatwell

Treatwell

Treatwell is the largest hair and beauty bookings website in Europe, offering over 10,000 treatments at 3000+ salons in 60+ cities. With a team of 500 people and 20,000 local partners, Treatwell provides a 24/7 platform for customers to easily search, ...

Diversified Consumer Services
251-1K
Founded 2008
View All Jobs 4

Description

  • Evolve the systems behind reconciliation, invoicing, transaction history, and pay-in/payout flows used by salon partners.
  • Build and improve internal tooling for operations, support, and data compliance teams.
  • Own services end-to-end from architecture through deployment with a DevOps mindset.
  • Work across the full stack, including backend and frontend implementation.
  • Contribute to experimentation by validating ideas with data before scaling them.
  • Design and deliver features from conception through production.
  • Collaborate with cross-functional teams to create clarity in a complex payments and financial data domain.

Requirements

  • Proven experience owning production-grade web applications end-to-end at a mid or senior level.
  • Ability to own features from database schema to UI without handoff.
  • Strong systems thinking and ability to reason about trade-offs and root causes.
  • Product mindset with the ability to question assumptions and push back when needed.
  • Data-driven approach, including instrumenting work, measuring impact, and using evidence to make decisions.
  • Ability to proactively contribute, align with others, and help teams deliver outcomes together.
  • Comfort working in complex or evolving domains such as payments and financial data.
  • Experience in fintech, payments, or financial SaaS in a B2B context is a plus.
  • Experience with AI-assisted development tools such as Claude, Cursor, or similar is a plus.
  • Exposure to event-driven architectures in production at scale is a plus.
  • Fluency in English.
  • Based in a city within Spain and legally authorized to work there.

Benefits

  • 28 days of holiday plus local bank holidays.
  • Monthly £/€40 Treatwell vouchers.
  • Mental health support through Open-Up.
  • 100% remote work with flexible working within Italy or Spain.
  • Market-specific benefits to be discussed during the interview process.

Interested in this position?

Apply directly on the company website

Apply Now

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