{"id":3749022,"url":"https://alion.io/job/millicom-core-vas-engineer","title":"Core & Vas Engineer","company":{"id":54619,"name":"Millicom","domain":"millicom.com","url":"https://alion.io/company/millicom","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":81,"open_postings":19,"ghost_share":0,"stale_share":0.947,"repost_share":0,"time_to_fill_p50_days":16,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Guatemala"],"countries":["GT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-13T00:00:00Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-11-12T23:57:34Z","board_verified":true,"closed_at":null,"days_open":31,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":31},"description":"Would you like to help us achieve our purpose of connecting more people, improve their lives and develop our communities? If so, Tigo is for you!\nWe believe in innovation, we adapt and are agents of change. Our customers are at the center of everything we do.\nCome and grow with our team, where together we will transform lives and communities. Additionally, you will have the opportunity to participate in challenging projects and bring your innovative ideas.\nThis is your opportunity, come and be part of Sangre Tigo!\nApply right now!\nCore & Vas EngineerFunción Principal:\nResponsable de planificar, gestionar y coordinar la evolución de los servicios soportados por las plataformas Core Móvil y VAS, asegurando que la infraestructura y sus capacidades respondan a las necesidades del negocio, al crecimiento del tráfico y a los requerimientos del mercado. Analiza indicadores de capacidad y desempeño para elaborar proyecciones, definir estrategias de expansión y administrar el presupuesto asociado. Actúa como enlace entre las áreas comerciales, los equipos técnicos locales, las áreas regionales y los proveedores tecnológicos, traduciendo requerimientos de negocio en soluciones técnicas viables y coordinando la implementación de nuevas funcionalidades, proyectos de expansión, upgrades y mejoras que garanticen la evolución continua de los servicios.\n\nRequisitos:\nIngeniería en Telecomunicaciones, Electrónica, Sistemas, Informática o carrera afín.\nExperiencia mínima de 3 años en telecomunicaciones móviles, preferiblemente en dominios Core, VAS, IMS/VoLTE, EPC/PS o plataformas críticas de red.\nExperiencia participando en expansiones de capacidad, upgrades, migraciones o modernizaciones de plataformas Core/VAS bajo ambientes de alta disponibilidad.\nExperiencia en coordinación de proyectos complejos con áreas internas, equipos regionales y proveedores tecnológicos, asegurando seguimiento, cumplimiento y escalamiento oportuno.\nExperiencia en análisis técnico-económico para soportar decisiones de implementación, optimización, licenciamiento o expansión.\nInglés avanzado.\n\nConocimientos Específicos:\nArquitectura y evolución de Core móvil: dominios CS (voz), PS/EPC (datos), IMS/VoLTE y VAS.\nPlanificación y dimensionamiento de capacidad con base en tráfico, usuarios concurrentes, utilización, crecimiento de demanda y KPIs de performance.\nEvaluación técnica y económica de iniciativas de expansión, nuevas funcionalidades y evolución tecnológica.\nGestión de proyectos de infraestructura y servicios, incluyendo seguimiento, riesgos, dependencias y cronogramas.\nGobernanza de cambios en plataformas críticas: evaluación de impacto, ventanas de mantenimiento, pruebas, criterios de aceptación, rollback y estabilización post-cambio.\nEntendimiento integral del impacto servicio-negocio: revenue, experiencia del cliente, riesgo reputacional, costos operativos, eficiencia de inversión y time-to-market.\nIdentificación y documentación de riesgos técnicos, operativos y de negocio en implementaciones.\nGestión de requerimientos con áreas comerciales, operación, IT, aseguramiento y proveedores, traduciendo necesidades del negocio a soluciones técnicas viables.\nConocimientos Técnicos:\nConocimiento práctico de señalización y flujos relevantes: SIP/IMS, Diameter, GTP, conceptos CS/PS.\nEvaluación de diseños e integraciones lógicas con dependencias hacia Charging, IT, interconexiones y servicios asociados.\nTelco Cloud / Virtualización: conocimiento de arquitecturas NFV, VNFs/CNFs, contenedores, escalamiento elástico, alta disponibilidad, orquestación de recursos.\nBuenas prácticas de continuidad y seguridad operacional: redundancia, control de accesos, ejecución segura de cambios.\nCapacidad de análisis técnicos, reportes ejecutivos y de alto nivel, recomendaciones y planes de acción basados en datos.\nElaboración de documentación técnica, requerimientos funcionales y planes de implementación.\nCompetencias y habilidades:\nLiderazgo e influencia\n\nComunicación asertiva y ejecutiva\n\nStorytelling con datos\n\nNegociación y persuasión\n\nPensamiento analítico y abstracción\n\nSensibilidad de negocio\n\nGestión de presión y priorización\n\nOrientación a mejora continua\n\nMillicom | Tigo is proud to be an Equal Employment Opportunity employer committed to a diverse workforce and nondiscrimination policy in all aspects of employment. We provide equal opportunity and access for all persons, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a disabled veteran or other protected veteran, or any other protected characteristic, in all phases of the employment process and in compliance with applicable federal, state, and local laws and regulations.","description_format":"text","description_chars":4735,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-11-04T14:33:30Z"}],"visa":[],"liveness":{"score":21,"band":"cold","label":"Long shot","p_open":1,"p_active":0.46,"p_room":0.45,"age_days":30,"expected_fill_days":16,"reasons":["conf:2","stale_co","velocity","win:tail"],"computed_at":"2026-11-12T10:38:37Z"},"pay":null,"html_url":"https://alion.io/job/millicom-core-vas-engineer","json_url":"https://alion.io/job/millicom-core-vas-engineer.json","meta":{"generated_at":"2026-11-13T05:48:33Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12276,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":54619},"rest":"https://alion.io/mcp/rest/get_company?id=54619"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmillicom-core-vas-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmillicom-core-vas-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmillicom-core-vas-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/millicom-core-vas-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmillicom-core-vas-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3749022}},{"tool":"search_jobs","arguments":{"company":"millicom.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3749022},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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