Principal Engineer (Payments)

Contract type
Ongoing
Work mode
Remote
Experience
Lead / principal · Not stated

Level inferred from job title

Job description

Principal Engineer - Payments in Masabi's Architecture team, focused on shaping the technical direction of the payments platform. A senior technical leadership role combining architecture work with hands-on contribution across the engineering organisation.

At a glance

Employment
Full-time
Work mode
Remote

What you'll do

  • Shape the technical direction of Masabi's payments platform, contributing to architecture, standards and engineering best practices
  • Design and deliver scalable, secure, resilient and cost-effective payment solutions aligned with Masabi's platform direction
  • Support teams in building towards a modern, microservices-based architecture while balancing delivery priorities and long-term platform health
  • Stay close to technical delivery through architecture reviews, design discussions and targeted hands-on contribution where needed
  • Identify and work through complex technical challenges related to scalability, resilience, operational performance and system evolution
  • Act as a senior technical advisor across engineering teams, supporting and influencing technical decisions, particularly within the payments domain
  • Work with external providers and payment partners on integrations, technical alignment and problem-solving
  • Contribute to technical roadmap planning, prioritisation, technical scoping and architecture discussions for complex initiatives
  • Produce clear technical documentation and contribute to engineering standards, technical forums and good practices across the organisation

What we're looking for

  • Strong experience working on payment systems, including integrations with PSPs, gateways, EMV, contactless EMV, acquirers, etc.
  • Good understanding of payment flows, transaction lifecycles and system design considerations
  • Experience designing and evolving distributed systems and microservices architectures
  • You've operated at Principal or Staff level, shaping technical direction across multiple teams or domains
  • Strong judgement and the ability to balance short-term delivery with long-term architectural outcomes
  • Comfortable navigating ambiguity and turning complex problems into clear, practical technical approaches
  • Clear and thoughtful communicator, able to engage both technical and non-technical audiences
  • Comfortable being hands-on where needed, while maintaining a focus on system-level impact
  • Strong experience with cloud platforms (AWS preferred) and modern infrastructure practices
  • Worked on systems where scale, reliability, performance and cost trade-offs matter, and can navigate those decisions thoughtfully
  • Contributed to engineering standards, architecture patterns or platform direction
  • Interest in or exposure to AI-enabled systems, particularly understanding architectural implications in production

Nice to have

  • Experience with transit systems or fare payment systems (e.g. tap-to-ride systems)
  • Familiarity with card schemes (e.g. Visa, Mastercard, Interac)
  • Experience working in complex, multi-service or event-driven architectures
  • Familiarity with Kotlin, Java
  • Familiarity with DynamoDB, MySQL
  • Familiarity with Terraform, GitLab CI/CD

Your team

Architecture team

The team focused on architecture across the engineering organisation, with a primary focus on the payments domain.

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About Masabi

Driving the fare payment revolution

Masabi builds fare collection platforms that allow riders to seamlessly buy and present tickets for public transport either on their mobile phones, from a ticket machine, or by tapping their bank card to travel.

Mission

To make transit fair and accessible for all.

Key facts

  • Fare collection / public transport technology
  • Justride platform is used in over 250 locations globally
  • Industry-first mobile ticketing SDK
  • Partnered with large players in the transport space, including Uber, Moovit and Transit

Partners & customers

UberMoovitTransit

What they value

  • Driven by Purpose
  • Encouraged to Accelerate
  • Advancing with Empathy