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For Companies At a Glance
- Tasks: Design and validate eSIM profiles, test devices, and manage global connectivity.
- Company: Join Airalo, the world's first eSIM store revolutionising telecom for travellers.
- Benefits: Enjoy health insurance, remote work stipend, wellness credits, and an all-expenses-paid retreat.
- Why this job: Be part of a diverse team making global connections easier and more accessible.
- Qualifications: 3+ years in mobile device configuration and OTA testing; fluent English required.
- Other info: Remote-first culture with opportunities for personal and professional growth.
The predicted salary is between 36000 - 60000 £ per year.
About Airalo
Airalo is the world's first eSIM store that helps people connect in over 200+ countries and regions across the globe. We are building the next digital service that revolutionises the telecom industry. We are a travel-tech company and an equal-opportunity environment that values and executes diversity, inclusion, and equity. Our team is spread across 50+ countries and six continents. What glues us together is our commitment to changing the way you connect.
About you
We hope that you care deeply about the quality of your work, the intrinsic worth of tasks, and the success of your team. You are self-disciplined and do not require micromanagement in terms of your skillset and work ethic. You do your best to flourish as an individual every day while working hard to foster a collaborative team environment. You believe in the importance of being — and staying — authentic, honest, positive, and kind. You are a good interlocutor with clear and concise communication. You are able to manage multiple projects, have an analytical mind, pay keen attention to detail, and love to get your hands dirty. You are cognizant, tolerant, and welcoming of vulnerabilities and cultural differences.
About the Role
Position: Full-time / Employee
Location: Remote-first
Benefits: Health Insurance, work-from-anywhere stipend, annual wellness & learning credits, annual all-expenses-paid company retreat in a gorgeous destination & other benefits
The eSIM & Device Engineer will join our Core Networks Engineering team. They will be a dedicated specialist focused on Device setting management, driving our mission toward global connectivity!
Your main responsibilities will be:
- Design and validate eSIM Electrical Profiles (MVNO/Roaming) following GSMA SGP.22 standards.
- Rigorously test the Local Profile Assistant (LPA) behaviour on the latest flagships (iPhone 16, Samsung S24, Pixel 9) to ensure flawless Remote SIM Provisioning.
- Plan and execute Over-the-Air (OTA) campaigns to update eUICC file systems and steering logic for devices already deployed globally.
- Use tools like COMPRION or UL SIMtester to analyse APDU logs and debug communication failures in Remote File Management (RFM).
- Verify Steering of Roaming (SoR) logic on global testbeds, ensuring our users always land on the fastest partner network.
- Minimise profile sizes to guarantee fast downloads over 3G, 4G, and 5G network conditions.
Must Haves
- 3+ years in mobile device configuration, OTA testing, and managing carrier settings (VoLTE, VoWiFi, APNs).
- Deep knowledge of Apple Carrier Bundles and Android network settings (GSMA NSX).
- You are comfortable navigating EF structures (ICCID, IMSI, PLMN) and analysing TLS-secured profile downloads.
- You likely have experience working at a Tier 1 Carrier, an MVNO, or a top-tier eSIM vendor (G+D, Thales, IDEMIA).
- Familiarity with Subscription Management orchestration and a "problem-solver" mindset for niche global hardware.
- Fluent English is essential for collaborating across our 50+ country remote team.
Nice to Have
- Remote testing (e.g. Segron, Mobilium) experience.
- Experience with OTA systems e.g. Thales.
- Knowledge of mobile network call flows (signalling) for 4G and 5G.
- Scripting languages (e.g. python).
If you are interested in this position, please apply via the link.
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 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.
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.
eSIM & Device Engineer - Core Networks in London employer: Airalo Group
Contact Detail:
Airalo Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land eSIM & Device Engineer - Core Networks in London
✨Tip Number 1
Network like a pro! Reach out to people in the industry, especially those already at Airalo. A friendly chat can open doors and give you insider info that could make your application stand out.
✨Tip Number 2
Prepare for the interview by brushing up on your technical skills. Make sure you can talk confidently about eSIM technology and device management. We want to see your passion and expertise shine through!
✨Tip Number 3
Show off your problem-solving skills during the interview. Be ready to discuss past challenges you've faced in mobile device configuration or OTA testing. We love hearing how you tackled tough situations!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re serious about joining our awesome team at Airalo.
We think you need these skills to ace eSIM & Device Engineer - Core Networks in London
Some tips for your application 🫡
Show Your Passion: When writing your application, let your enthusiasm for the role shine through! We want to see that you genuinely care about the work you'll be doing and how it contributes to our mission at Airalo.
Tailor Your CV: Make sure to customise your CV to highlight relevant experience and skills that match the job description. We love seeing how your background aligns with what we're looking for in an eSIM & Device Engineer!
Be Clear and Concise: Keep your application straightforward and to the point. We appreciate clear communication, so avoid jargon and focus on what makes you a great fit for the team.
Apply Through Our Website: Don't forget to apply via our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy to do!
How to prepare for a job interview at Airalo Group
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of eSIM technology, especially GSMA SGP.22 standards and the latest devices like iPhone 16 and Samsung S24. Being able to discuss specific technical details will show that you're not just familiar with the basics but are genuinely passionate about the field.
✨Showcase Your Problem-Solving Skills
Prepare examples of how you've tackled complex issues in mobile device configuration or OTA testing. Airalo values a 'problem-solver' mindset, so be ready to share your thought process and the steps you took to resolve challenges in previous roles.
✨Communicate Clearly and Concisely
Since you'll be working with a diverse team across 50+ countries, practice articulating your thoughts clearly. Use straightforward language when discussing technical concepts, and be prepared to explain your ideas in a way that's easy for everyone to understand.
✨Emphasise Team Collaboration
Airalo is all about fostering a collaborative environment. Be ready to discuss how you've worked effectively in teams, managed multiple projects, and contributed to a positive team culture. Highlight any experiences where you embraced cultural differences and supported your colleagues.
