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Core Network Lead

Remote from Spain·Full-time·Added 1 month ago (last checked 8 Oct)

Airalo

12 open roles

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Overview

Salary: €76,800 - €110,400 a year
About €4,270 - €5,810 a month after tax, or €4,550 - €6,670 under the Beckham regime.
Work mode: Remote from Spain
Contract: Permanent contract, full-time hours
English: Required
Experience: 5+ years
Education: University degree

Visa options

The ad doesn’t mention sponsorship
Not a refusal, but not a yes. Worth asking in your first message.
May fit the digital nomad visa
A remote job for a company outside Spain: you apply yourself, no sponsor needed. It asks for about €2,849 a month in remote income.
Pay clears the EU Blue Card threshold
The advertised pay is over the €41,356 bar, so the route exists if Airalo uses it.

More jobs that may fit the digital nomad visa

Skills

Nice to have

Requirements

What we're looking for

5+ years hands-on in mobile core networks
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.
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.

The role

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.

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.

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.

About Airalo

Airalo is a global eSIM marketplace that provides travelers with instant access to mobile data in over 200 countries and regions. Founded in 2019, the company has become a leading player in the telecom industry, partnering with mobile network operators worldwide to offer affordable, flexible data plans. With a strong focus on technology and customer experience, Airalo has grown rapidly, serving millions of users and expanding its team across multiple continents.

In Spain, Airalo is building a significant presence, with a growing number of open roles based in the country. The company operates with a remote-first culture, offering flexibility and a diverse, international work environment. For international professionals, Airalo presents an opportunity to join a fast-paced, high-growth tech company in the telecom sector, with roles spanning data, engineering, finance, and marketing.

Industry: Telecom
Founded: 2019
Employees: 200–500
Headquarters: Singapore, Singapore
Website: airalo.com

Good to know if you are moving

Airalo is a remote-first company, allowing employees to work from anywhere, including Spain.
The company has a strong international presence, with a diverse team spanning multiple countries and cultures.
Airalo offers competitive compensation and benefits, including equity for many roles.
The company is in a high-growth phase, providing significant opportunities for career advancement.
Working at Airalo means being at the forefront of the eSIM and digital telecom industry.

In their own words

About the company & team

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.

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.

Additional information

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.

All open roles at Airalo