Staff Software Engineer

What we’re all about:

Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But we’re more than that. 🌍✨ Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks , we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain.

Innovation is in our DNA , and we have an insatiable hunger to ‘wow’! 🚀 While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market. Our expertise spans across various sectors, including industry, agriculture, healthcare, security, transport, utilities, and smart cities.

IoT… a fancy acronym or a secret code?

The Internet of Things (IoT) is like the magical glue that keeps the world connected! 🌐✨ From ordering your favourite takeaway to the ANPR technology that helps you find a parking spot, IoT is everywhere—even if you don’t realize it. At Wireless Logic , we provide cutting-edge connectivity solutions and technologies to ensure a vast array of devices stay seamlessly connected.

The Role — Interstellar Squad

The Interstellar Squad owns a core part of our commercial platform: the billing run — a mission-critical, high-volume pipeline that turns large-scale usage data into timely, accurate invoices for customers worldwide. It's a technically rich domain: distributed data processing, event-driven workflows, financial correctness, and operational reliability at scale.

We're looking for a Staff Software Engineer to set the technical direction for Interstellar, raise the engineering bar across the squad, and guide delivery of a platform that has to stay correct, predictable and scalable as the business grows.

A central part of this role is leading the gradual modernisation of a mature platform into a set of focused, TypeScript-based domain services — using a strangler-fig approach to extract capabilities incrementally, keeping the existing system safe and our customers unaffected while we evolve the architecture.

You'll report to an Engineering Manager and partner closely with the Product Manager, Delivery Manager and engineers in the squad , as well as peer Leads across the domain. You'll have the mandate to shape how we design, build and run our systems — and the responsibility to keep the team aligned behind that direction.

This role is based in Poland to work alongside the rest of the squad.

Key Responsibilities

• Set and communicate a clear technical vision for the squad's services, aligned with product and business objectives, and translate it into concrete near-term work
• Lead the incremental decomposition of a mature platform into well-bounded, TypeScript / Node domain services using a strangler-fig pattern — defining seams, sequencing extractions, and protecting delivery and correctness throughout
• Define and uphold engineering standards for code quality, testing, observability, and operational readiness across the squad — applied consistently to both legacy and new services
• Own complex technical decisions end-to-end: articulate trade-offs, choose an approach, document it, and bring the team along
• Drive architecture and system design for distributed, data-intensive billing workflows — simplifying where we can, investing where it pays off
• Lead the design and implementation of SLIs and SLOs for squad-owned services (Grafana), and take ownership of their health and reliability in production
• Guide CI/CD and delivery practices in collaboration with the squad (GitLab), keeping cycle time short and releases safe across both old and new components
• Raise the bar on code review — provide thorough, growth-focused feedback and coach engineers to do the same
• Mentor engineers at all levels , create clear growth paths and unblock them day to day; help the team build confidence in modern TypeScript/Node practices
• Champion AI-assisted/agentic engineering (IDE agents, CLI tooling, reviews) — set norms for when and how to use it, keep humans accountable for correctness, and share practices with peer squads
• Partner with Product and Delivery to shape roadmaps, size work honestly and manage technical debt with intent
• Represent the squad in cross-domain technical forums and contribute to the wider engineering direction

Key Experience & Skills

Required

• Proven experience leading the technical direction of a squad or product area , not only as an individual contributor
• Deep, production-proven backend expertise in a modern, strongly-typed stack — ideally Node.js / NestJS / TypeScript and/or PHP 8.x / Symfony
• Demonstrable experience modernising or decomposing a mature monolithic / legacy system into smaller services — comfortable with strangler-fig , anti-corruption layers, contract design, dual-write / shadow strategies, and incremental cut-overs
• Strong background in distributed systems and event-driven / asynchronous processing (e.g. RabbitMQ, Kafka, SQS)
• Experience designing and operating data-intensive, business-critical services where correctness, idempotency and recoverability matter
• Strong command of PostgreSQL (query design, indexing, performance tuning); bonus for distributed/sharded setups (e.g. Citus)
• Experience owning &lt