{"id":1116546,"url":"https://alion.io/job/airalo-core-network-engineer","title":"Core Network Engineer","company":{"id":6192,"name":"Airalo","domain":"airalo.com","url":"https://alion.io/company/airalo","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":null},"role":"Networking","role_family":"Networking","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["ES"],"hiring_countries_total":1,"salary":{"min":59600,"max":85600,"currency":"GBP","period":"year","gross":null,"usd_annual":113394},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-09-22T13:50:30Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-09-27T00:13:16Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Your main responsibilities will be:\nDesigning the IP infrastructure of our multi-site data centers\nDesigning the GRX/IPX interconnectivity and global PoP structure to access mobile partner networks\nDefining the WAN network strategy\nLeading and realization of the data centre LAN and WAN networks, specifically the configuration of DRAs, GTPs, GGSN/PGW, SBC, FW, Routers\nIntegrating direct roaming agreements and sponsored roaming agreements\nTracing of signalling and user plane transport for debug issues\nActing 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)\nCore network optimisation and enhancement\nSupports the operations team in regards to:\nDeployments and rollouts\nPerformance improvements\nPerform trainings\nSupporting the partner’s operations team\nWhat You'll Bring\nTechnical Degree in Engineering or Telecommunications preferred or equivalent experience demonstrated\n3 - 5 years minimum relevant experience in the telecom core field\n3+ years experience with network elements such as: Packet Gateway GGSN/PGW/DPI, direct and sponsored roaming (HLR/HSS), diameter routing and GTP, GRX\n3+ years experience with these protocols; Sigtran: MAP (Mobile Application Protocol), Sigtran: CAP (Camel 1-3), Diameter (Ro, Gx, Gy, Gn, Gi), REST API, BGP\nExcellent verbal and written communication skills\nBonus Points\nIREG Testing experience is preferred\nInternational working experience is ideal","description_format":"text","description_chars":1507,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Games","Gift Cards & Loyalty Programs","Smartphones"],"lifecycle":[{"event":"open","at":"2026-09-22T16:09:37Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":59,"reasons":["conf:4","velocity","win:early"],"computed_at":"2026-09-26T05:45:00Z"},"pay":{"stated_usd_annual":113394,"is_top_pay":false},"html_url":"https://alion.io/job/airalo-core-network-engineer","json_url":"https://alion.io/job/airalo-core-network-engineer.json","meta":{"generated_at":"2026-09-27T00:38:21Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":554,"day_limit":5000,"remaining_today":4446,"minute_limit":60,"resets_at":"2026-09-28T00:00:00Z"}}}