Quality Assurance Engineer

Location: United Kingdom; Spain Workplace: remote Help Us Build The Future of Travel At Airalo, we're making it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access affordable mobile data in 200+ countries and regions around the world. Today, we're a team of 400+ people across 60+ countries, building a product used by travelers every day. We've grown quickly, but we've worked hard to keep what matters: trust, ownership, and the freedom for people to do great work without unnecessary layers or bureaucracy. We're fully remote by design, genuinely global, and united by a shared mission to make travel simpler for everyone. Your Next Destination Location: Remote. Contract: Full-time, permanent. Benefits: Learn more about our benefits here in this link - https://airalo-public.notion.site/Benefits-25396a97ffca81fb9bc1f0be479f1be3?pvs=74  Languages: English is our main working language day to day, so you'll need to be comfortable communicating in it both in meetings and async. What you'll do Design and maintain IREG-based test campaigns for roaming partners, network changes and service launches across Data, Voice and SMS. Manage the test SIM and eSIM fleet, remote test probes, campaign configuration, scheduling, execution, reporting and coverage history. Build repeatable test pipelines, integrate smoke and regression suites into CI/CD, and provide clear release gates; so that core network changes and Steering of Roaming adjustments never quietly break the existing footprint. Define the KPIs, baselines and thresholds that tell us the service is healthy. Correlate synthetic test results with production KPIs and real customer journeys, and turn what you find into alerts and runbooks the Operations team can act on. Design and run the tests that show our geo-redundancy behaves as designed, i.e. site failover and failback, Diameter and GTP path recovery, session survival, data consistency after a switch; and verify that our core platforms deliver the capacity they were dimensioned for, under sustained load and under signalling bursts. Analyse PCAP, MAP/SS7, Diameter, GTP and DNS traces alongside monitoring data to isolate failures, support root cause analysis, validate fixes and strengthen regression coverage. What you'll bring You've worked in telecom QA, network testing, service assurance or roaming validation. You know how LTE/EPC fits together. Give you a registration or session flow and you'll find where it broke. Wireshark is where you go first, not last. You write your own automation in Python or something close, and you keep regression suites running in CI/CD. Nice to have Experience at a roaming hub, IPX provider, mobile operator or MVNO, including partner interoperability testing. Hands-on SIM box or remote testing probe management. Exposure to 5G roaming and VoLTE roaming, including S8HR and SMS over IP. Familiarity with HSS/HLR, PCRF and OCS functions, and how they show up in roaming failures. Working knowledge of GSMA roaming procedures and documents, including IR.21, IR.24, IR.35, IR.38 and IR.92. Why People Join Us We started Airalo to make staying connected effortless, wherever you are in the world. Today, millions of travelers rely on our eSIMs, and many of the people building the product were customers first. Our team spans 60+ countries, united by a shared belief that great work happens when people are trusted to own what they do. There's trust to own what you do, space to focus without constant layers of process, and a clear sense of what you're responsible for from day one. As Airalo continues to grow, so do the opportunities to learn, take on new challenges, and make a real impact - from anywhere in the world. Before You Hit Apply By applying, you acknowledge and agree that, in case of successful application, Airalo may request to run background checks as a condition for entering into an agreement with you. Rest assured that these checks will only occur upon your prior consent and at the end of the selection process, and will be strictly limited to what is allowed under the laws that are applicable to you. All data that you share or that we collect in connection with such checks will be processed in accordance with our Privacy Policy, available here: www.airalo.com/more-info/privacy-policy?srsltid=AfmBOooBT0rXAj1FaNelZ3VfN0wvhwzvAoxdtHnOKSVETpiSjiXVuycy    We sincerely thank all applicants in advance for submitting their interest in this opportunity. Airalo is an equal-opportunity employer and values diversity, equity & inclusion. We do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We are committed to providing reasonable accommodations upon request for individuals with disabilities throughout our job interview process. At Airalo, we believe in roaming-free recruitment. Just as we provide clear connectivity for travelers, we provide clear salary ranges for our candidates. 🌍 This role is remote and open to candidates across our supported locations in Europe. The range below reflects the full salary range for this role across the countries where it's available: 📍 UK: £54,400 – £78,200 📍 Ireland: €62,800 – €90,275 📍 Western/Northern Europe: €41,600 – €86,250 📍 Southern Europe: €37,200 – €81,650 📍 Central & Eastern Europe: €42,800 – €74,175 📍 South-Eastern Europe / Balkans: €37,600 – €55,200 Your Home Destination: 🛫 Local market rates and cost of living vary. Your specific range within this band depends on where you're based. We'll walk through your range together on your first call with our Talent team so we're aligned for takeoff! 🎒✨