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.
We are looking for a highly skilled, hands-on Technical Team Lead to lead the global build and technical integration of Full MVNO systems. In this role, you will lead a dedicated Build Team responsible for architecting, integrating, testing, and commissioning end-to-end Full MVNO capabilities across global markets.
Operating under a Build-to-Run model, you and your team will build new MVNO capabilities and host MNO integrations from the ground up, execute rigorous testing, and hand over stable, operational systems to a dedicated Run team after launch. This role is ideal for someone with deep technical expertise in Mobile Core networks across voice, VoLTE, data, and SMS, strong knowledge of telecommunications regulations, and experience leading engineering and QA teams.
What You'll Do:
- Lead, mentor and manage a team of around five engineers and QA specialists, owning sprint planning, task allocation and technical reviews across concurrent global rollout streams.
- Establish engineering best practices, integration templates, automated testing strategy and technical handover standards.
- Lead technical integrations with host mobile network operators globally, across signalling, packet core, voice and messaging.
- Own the architecture and setup of Full MVNO core components, from the subscriber database (HSS/HLR) through packet core, signalling routing and messaging platforms.
- Direct implementation and troubleshooting across the signalling stack, including Diameter and SS7.
- Own end-to-end service readiness across data, voice and SMS, covering session management, policy enforcement, data routing, VoLTE, legacy circuit-switched voice and international interconnects.
- Design and validate mobile number portability routing in line with country-specific regulatory frameworks.
- Own regulatory compliance for each market, covering lawful interception (ETSI ES 201 671 / TS 102 232, HI1/HI2/HI3) and emergency service routing such as e112, 911 and 999.
- Partner with QA on integration test plans, stress testing and acceptance testing, then drive Operational Readiness Reviews and clean documented handovers to the 24/7 Run team after launch.
What You'll Bring:
- 5+ years hands-on in mobile core networks and Full MVNO integrations.
- 2+ years leading a team of engineers and/or QA specialists in an agile or delivery-focused environment.
- Strong working knowledge of both packet core and voice core, including the subscriber database (HSS/HLR), policy and charging, VoLTE and legacy circuit-switched voice.
- Expertise across the signalling stack, including Diameter, SS7 and SIP.
- Experience with messaging architecture and SMS routing, including interworking with other operators.
- Proven experience delivering mobile number portability and lawful interception solutions.
- Strong delivery mindset across multiple concurrent rollout streams, with clear communication and the ability to produce documentation good enough to hand a system over on.
Nice to have
- Automation experience: CI/CD pipelines, infrastructure as code (Terraform, Ansible), containerisation (Docker, Kubernetes) or automated signalling test frameworks.
- Hands-on with core MVNO vendors such as Nokia, Ericsson, Mavenir, Oracle Communications, Cisco, Summa Networks, NetNumber or XIUS.
- Cloud-native or virtualised network functions on AWS, Azure, GCP or private cloud.
- Degree in telecommunications engineering, computer science, electrical engineering or similar.
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.
On-CallParticipating in our on-call rotation is a core expectation of this role. It's essential for maintaining 24/7 service reliability across our global operations, ensuring our systems remain resilient and our customers experience uninterrupted service, regardless of time zone or geography.
- Paid Rotation: We offer standby fees + overtime pay.
- Delayed Start: No on-call duties for your first 6 months.
- Rest & Recovery: Guaranteed rest periods and flexible hours following night incidents.
- Shared Load: Rotations are split (Weekdays vs. Weekends) to minimize fatigue.
Please refer to the On-Call Policy in the Airalo Handbook for full details: https://airalo-public.notion.site/our-approach-to-engineering-on-call-policy
Before You Hit ApplySkills Required
- 5+ years of hands-on experience with mobile core networks and Full MVNO integrations
- 2+ years leading engineers and/or QA specialists in an agile or delivery-focused environment
- Strong knowledge of packet core and voice core, including HSS/HLR, policy and charging, VoLTE, and legacy circuit-switched voice
- Expertise with Diameter, SS7, and SIP signalling
- Experience with messaging architecture and SMS routing, including operator interworking
- Experience delivering mobile number portability and lawful interception solutions
- Ability to deliver across multiple concurrent rollout streams and produce thorough technical documentation
- Strong English communication skills for meetings and asynchronous collaboration
- Experience with CI/CD, infrastructure as code using Terraform or Ansible, containerisation with Docker or Kubernetes, or automated signalling test frameworks
- Experience with MVNO vendors including Nokia, Ericsson, Mavenir, Oracle Communications, Cisco, Summa Networks, NetNumber, or XIUS
- Experience with cloud-native or virtualised network functions on AWS, Azure, GCP, or private cloud
- Degree in telecommunications engineering, computer science, electrical engineering, or a similar field
What We Do
Bringing you pain-free connectivity while you travel. As travelers ourselves, we’ve faced the painful situations of not finding Wi-Fi, losing the SIM card you’ve carefully taped to the back of your phone, and the horror of coming home to an unexpected roaming bill. We believe that in today’s modern world, connectivity and freedom should be accessible to all. Airalo is here to take away the pain and stress of researching and seeking out the best roaming deal. We’re here to let everyone stay connected globally while keeping it simple and pain-free. Airalo is the world’s first eSIM store for travelers to access over 200+ eSIMs at the most affordable, local rates from around the world, all via eSIM-compatible smartphone, tablet, or PC. Airalo offers you both connectivity and freedom - you’ll never have to carry multiple SIM cards or change your number again, no matter where you are in the world.
