HybridFull time

Principal Software Engineer

About the Company You’ll be joining a global eCommerce platform that enables brands to sell internationally without the usual complexity. Our client powers cross-border commerce for hundreds of retailers, handling everything from localisation and payments to logistics, tax, and compliance across 200+ destinations worldwide. Their Dublin engineering team is building the systems that sit at the core of that experience, high-scale, high-impact, and deeply technical.

What’s in it for You

  • Work on systems handlingmillions of global transactionsat scale
  • Own architecture decisions in a truePrincipal-level role
  • Modern stack,Scala, Kubernetes, AWS, microservices
  • High-impact domain, logistics, fulfilment, tracking, and cross-border complexity
  • Strong engineering culture with a focus on quality, scalability, and autonomy
  • Competitive salary + bonus + benefits


What You’ll Do

  • Lead the design and delivery of core services acrosslogistics and order management systems
  • Define and guide architecture fordistributed, API-first microservices
  • Build systems forfulfilment, shipping labels, and real-time tracking
  • Drive engineering standards, clean code, testing, and system reliability
  • Scale infrastructure and tooling to support rapid international growth
  • Work closely with product and cross-functional teams to ship high-impact features
  • Contribute hands-on, writing production-gradeScala code


What You’ll Bring

  • 7+ years buildinglarge-scale, customer-facing systems
  • Strong experience withdistributed systems and microservices architectures
  • Solid cloud experience (AWS preferred)
  • Experience working inhigh-throughput, high-reliability environments
  • Strong understanding of system design, performance, and scalability
  • Comfortable leading technically while remaining hands-on


Nice to Have

  • Experience ineCommerce, fintech, or logistics platforms
  • Exposure to functional programming(not mandatory)
  • Experience integrating with external systems (e.g. carriers, payments, APIs)
  • Strong database optimisation experience


Why This Role

You’re not just building services, you’re shaping how global commerce actually moves.


This team sits at the intersection of logistics, compliance, and real-time systems, integrating with carriers worldwide, handling taxation, and delivering a seamless experience to customers globally.


It’s complex, high-scale, and very real-world.

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