Senior Product Engineer – Payments Team

Role Overview

• Lead payments projects end-to-end: discovery with Product and PayOps teams, integration design with PSPs, build, rollout, monitoring, and incident response.
• Partner with the Product team to gain insight into organizer and traveler challenges, building payment solutions that successfully process transactions.
• Own the reliability of our payments system.
• Contribute to WeTravel’s engineering practices and excellence.

Requirements

• 7+ years of product engineering expertise, with 4+ years dedicated to architecting complex payments systems.
• Proven track record within a PSP, acquirer, gateway, or a high-scale platform payments team.
• Broad practical expertise in deploying and troubleshooting production-level integrations across various PSPs, card acquirer ecosystems, and diverse payment rails. You possess deeply ingrained expertise in settlement processes, reconciliation, dispute management, 3DS2 protocols, high-pressure webhook management, and PCI compliance frameworks, including tokenization methods.
• Strong backend mastery in Ruby on Rails, Kotlin, Python, Go, Java, or Node.js with the agility to ramp up on Ruby quickly.
• Full-stack comfort: you can build the React interface for the payment flows you architect.
• Deep expertise in architecting robust, resilient distributed systems, including double-entry ledgers, automated reconciliation pipelines, money movement state machines, idempotency, exactly-once semantics, event-driven architectures, webhooks, and reliable consumer patterns.
• Direct production on-call experience, including authoring post-mortems and leading incident response.
• Excellent written and verbal communication skills, including cross-functional collaboration experience, and the ability to thrive in a distributed, multicultural environment.
• Pragmatic adoption of AI tools to optimize your engineering workflow, including the ability to mentor and train others on AI concepts.
• Strong background in cloud infrastructure (AWS/GCP), containerization, and modern CI/CD practices.
• Experience in handling critical systems with precision: you will handle FX and multi-currency logic directly within the application layer.
• Bonus: Direct card issuing experience, including BIN sponsorship, processor integrations, controls, and dispute handling.

Tech Stack

• AWS
• Cloud
• Distributed Systems
• Google Cloud Platform
• Java
• JavaScript
• Kotlin
• Node.js
• Python
• React
• Ruby
• Ruby on Rails
• Go

Benefits

• Competitive salary
• Generous "Time to Recharge" policy
• enjoy unlimited paid time off to rest, recharge, and show up as your best self.
• Work remotely for a maximum of 4 weeks per calendar year.
• 2-week cross-functional onboarding program.
• Annual team off-site (often somewhere sunny 🌊).
• Cycle-to-work scheme (Swapfiets subscription) or commuting reimbursement.
• Monday/Thursday team lunches and after-work social events.
• Extensive paid family leave.
• Three paid volunteer days per year
• take time to give back to causes you care about, on us.
• Cutting-edge equipment and tools to set you up for success.
• Join an international, travel-loving team with a passion for adventure and innovation.