Airalo is the world's first eSIM store, revolutionizing global connectivity for travelers by providing digital SIM cards for over 200 countries and regions. As a leader in the telecommunications technology space, the company operates on a global scale, serving millions of users and partnering with major telecommunications providers to eliminate high roaming costs. In Spain, Airalo maintains a significant operational presence with a primary hub in Valencia, focusing on engineering, data analytics, and core network operations. The company is highly attractive to international professionals due to its remote-first culture, diverse global team, and the use of English as the primary working language, making it an ideal environment for expats and digital nomads.

Founded in 2019 by Bahadir Ozdemir and Abraham Burak, Airalo was established to solve the problem of expensive roaming charges for international travelers. It has since grown into the leading global eSIM marketplace with significant venture backing.

Quality Assurance Engineer, MVNO Systems

Airalo

Original Advert

Ready to make travel easier for millions? Airalo is the world's first and largest eSIM store, helping travellers stay connected seamlessly in over 200 countries and regions. We trust our teams to take ownership, put customers first, and do work that has a real impact every day. What's in it for you? Airalo offers team members a range of perks, including remote work, generous PTO, wellness and learning allowances, and, of course, our annual Airalo Away retreat. Learn more about our benefits here; www.notion.so/airalo-public/Benefits-25396a97ffca81fb9bc1f0be479f1be3

Hi, I'm Peter, VP of Networks at Airalo!

Our team ensures customers have instant, smooth connectivity from the moment they purchase their plan to the moment they arrive at their destination. We go beyond standard mobile service, building innovative solutions that enhance the traveller experience. We're looking for curious engineers who want to design the future of global networks. Think outside the box, reverse-engineer solutions from ambitious product ideas, and help pave the way for Airalo's leadership as a global connectivity partner.

Airalo's fully remote Networks team is growing. You'll work on the systems and infrastructure that keep over 20 million travellers connected reliably and securely at global scale. Solve complex technical challenges, optimize processes, and experiment with better ways to keep the world connected.

As our MVNO Service Validation QA Engineer, you will focus on the unique technical challenges of our Full MVNO deployments. You will be responsible for validating the entire "Local" subscriber journey, from Mobile Number Portability (MNP) to domestic usage, ensuring every new country launch meets both our high standards and local regulatory requirements.

Responsibilities include but are not limited to:

Validate the full "Subscriber Journey" for new country launches, ensuring local Data, Voice, and SMS services work natively and BSS provisioning triggers correctly mirror subscriber attributes in the HSS/HLR.
Own the technical validation of mandatory domestic features, focusing specifically on MNP flows and Lawful Interception hooks
Verify that domestic-specific mobile plans and real-time charging triggers are accurately applied in the OCS/BSS.

Must-haves

Deep understanding of Mobile Number Portability (MNP) technical flows.
Knowledge of BSS/OSS architectures and real-time charging (CAMEL/Diameter).
Experience testing Core Network functions such as HSS, HLR, and PCRF.
Proficiency in End-to-End (E2E) testing methodologies for telecommunications services.

Good to have

Experience with Prepaid vs. Postpaid billing logic.
Experience with Postman or Newman for API-level service testing.

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.