Principal Software Engineer
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At a glance
- Employment type
- Full-time
- Workplace
- Hybrid
- Salary
- €175k/year (EUR)
- Category
- Full-stack
Technologies & skills
Primary technologies
Cloud & infrastructure
What you'll be doing
Join as a Principal Software Engineer to lead the design and delivery of core services in logistics and order management systems. Work with a modern stack including Scala, Kubernetes, and AWS, focusing on high-impact features and system reliability in a high-throughput environment.
- Lead the design and delivery of core services across logistics and order management systems
- Define and guide architecture for distributed, API-first microservices
- Build systems for fulfilment, 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-grade Scala code
Key requirements
Must-have
- 7+ years building large-scale, customer-facing systems
- Strong experience with distributed systems and microservices architectures
- Solid cloud experience (AWS preferred)
- Experience working in high-throughput, high-reliability environments
- Strong understanding of system design, performance, and scalability
- Comfortable leading technically while remaining hands-on
Nice-to-have
- Experience in eCommerce, fintech, or logistics platforms
- Exposure to functional programming (not mandatory)
- Experience integrating with external systems (e.g. carriers, payments, APIs)
- Strong database optimisation experience
Experience: 7+ years
Role signals
- Technical focus
- Full-stack
- Architecture / system design
- Indicated in the listing
- Hands-on vs management
- Hands-on
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Full job description
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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