
Core Network Engineer
AiraloPosted 5/1/2025

Core Network Engineer
Airalo
Job Location
Job Summary
Airalo is a travel-tech company that revolutionizes the telecom industry by connecting people in over 200+ countries and regions. As a Core Network Engineer, you will design and optimize IP infrastructure, interconnectivity, and global PoP structures to access mobile partner networks. You will also lead and realize data centre LAN and WAN networks, integrate direct roaming agreements, and support operations teams. With a remote-first work environment, health insurance, and other benefits, Airalo values diversity, equity & inclusion and is committed to providing reasonable accommodations for individuals with disabilities. If you are passionate about quality of work, team collaboration, and innovation, apply now to join the Airalo team.
Job Description
Responsibilities include but are not limited to:
- Designing the IP infrastructure of our multi-site data centers
- Designing the GRX/IPX interconnectivity and global PoP structure to access mobile partner networks
- Defining the WAN network strategy
- Leading and realization of the data centre LAN and WAN networks, specifically the configuration of DRAs, GTPs, GGSN/PGW, SBC, FW, Routers
- Integrating direct roaming agreements and sponsored roaming agreements
- Tracing of signalling and user plane transport for debug issues
- Acting as a primary interface between the Core Network team and Airalo’s Platform team, Airalo’s Network Operations team and technology partners (vendors, roaming partners)
- Core network optimisation and enhancement
- Supports the operations team in regards to:
- Deployments and rollouts
- Performance improvements
- Perform trainings
- Supporting the partner’s operations team
Must-haves:
- Technical Degree in Engineering or Telecommunications preferred or equivalent experience demonstrated
- 3 - 5 years minimum relevant experience in the telecom core field
- 3+ years experience with network elements such as: Packet Gateway GGSN/PGW/DPI, direct and sponsored roaming (HLR/HSS), diameter routing and GTP, GRX
- 3+ years experience with these protocols; Sigtran: MAP (Mobile Application Protocol), Sigtran: CAP (Camel 1-3), Diameter (Ro, Gx, Gy, Gn, Gi), REST API, BGP
- Excellent verbal and written communication skills
Good to have:
- IREG Testing experience is preferred
- International working experience is ideal