Senior Platform Engineer - Krakow at Arq

ABOUT ARQ ARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges, global impact, and the chance to grow fast with a world-class team, ARQ is the place to do it. WHAT WE'RE LOOKING FOR We’re looking for a world-class, hands-on Senior Platform Engineer who takes a software engineer’s approach to architecting and building engineering infrastructure. Our engineering culture is focused on fully type-safe, declarative & testable infrastructure as code and we’re looking for like-minded engineers who also value these properties to join us. The ideal candidate will have a raw passion for programming, a broad knowledge base and the ability to dig deeply into any technical area required to enable our product engineering team to deliver the best product on the market for managing modern finances. We architect extreme-quality, automated systems to orchestrate hundreds of backend services & databases across tens of kubernetes clusters, tens of thousands of data processing jobs and tens of thousands of CI/CD builds per week - if that excites you, we want to talk to you. WHAT YOU'LL BE DOING - The design and implementation of the secure, highly-available infrastructure layer that powers a modern, high-growth, financial services company. - Ensure our product engineering can spin up new infrastructure in an unimpeded and rapid manner, through the careful design and implementation of shared IaC libraries, cli tools and codebase patterns. - Problem-solve, analyse and debug infrastructure issues & opportunities with members of the wider engineering team. - Strategise & execute on the rollout techniques for making sweeping infrastructure changes as we constantly integrate new best practices & security improvements into our setup. - Orchestrate multi-region infrastructure and deployments to meet security, availability and compliance requirements. - Build, maintain & optimise high-volume CI infrastructure, along with reusable pipeline templates suitable for a microservices architecture. - Implement GitOps workflows for declarative application deployments. - Improve application monitoring and alerting with Datadog, Prometheus, and Grafana WHAT YOU'LL NEED REQUIRED EXPERIENCE - 5-10+ years of Software Engineering with deep exposure to Platform/Infrastructure Engineering. - Experience driving the design and implementation of large-scale production software. - Strong software engineering mindset - we write code, not just config. - Hands-on experience with at least one typed language. - Exposure to a modern infrastructure stack: - Infrastructure as Code (IaC) - Kubernetes & Containerised workloads - CI/CD - pipeline design, templates, runners, caching strategies - A passion for high-quality, secure software engineering. - An understanding of modern cyber-security attack vectors and how to mitigate them. NICE TO HAVE - Deep knowledge of AWS managed services - Distributed systems knowledge - Data engineering infrastructure - GitOps workflows experience - Fintech or regulated industry experience - Multi-region architecture / disaster recovery - Experience with security hardening of a variety of systems - TypeScript fluency - Exposure to sophisticated type systems WHAT WE VALUE - Systems thinking - understanding how distributed systems work end-to-end - Problem-solving - methodical debugging of complex infrastructure issues - Collaboration - working with engineering teams to understand their needs - Documentation - clear runbooks, technical documentation, and knowledge sharing - Pragmatism - balancing technical excellence with practical delivery BENEFITS - Competitive salary commensurate with experience - Sign-on stock options bonus - Discretionary performance bonus (stock options) - Paid annual leave - Own the platform that directly impacts customer experience - Work with modern DevOps practices and cutting-edge technology - Strong team focused on continuous learning and knowledge sharing - Influence technical direction and architecture decisions