Platform Support Engineer (Telecom)

Location: Lisbon, Portugal

Company

hirify.global is a global mobile communications provider with a telecom platform, proprietary eSIM technology, and its own mobile core network operating across 43 countries.

What you will do

• Monitor and support CORE, RAN, and API connectivity ecosystems to maintain high availability and performance.
• Troubleshoot service-impacting issues across Voice, Data, SMS, and Registration services.
• Analyse and resolve network faults using telecom signalling traces and protocols including SS7, MAP, ISUP, SIP, CAP, and DIAMETER.
• Escalate complex incidents and coordinate with vendor, engineering, Radio Planning, Core Engineering, and Customer Support teams.
• Participate in major-incident root cause analysis and implement corrective actions.
• Manage daily operations, incident response, SLA compliance, and technical documentation.

Requirements

• Degree in Telecommunications Engineering, Computer Science, or equivalent practical experience.
• Solid experience troubleshooting CORE and/or RAN networks.
• Strong understanding of SS7, MAP, ISUP, SIP, DIAMETER, CAP, and related telecom signalling protocols.
• Hands-on experience diagnosing Voice, Data, SMS, and network attach or registration flows.
• Experience with trace analysis and monitoring tools such as Wireshark.
• Strong incident management and problem-solving skills involving complex telecom infrastructures.
• Excellent English communication skills, written and verbal.
• Ability to work independently, prioritize tasks under pressure, and follow direction from remote teams.
• Team-oriented, highly organized, detail-oriented, structured, and focused on continuous improvement.
• Comfort working in high-demand, fast-paced environments, including on-call rotations.

Nice to have

• Knowledge of the IoT ecosystem or M2M services.

Culture & Benefits

• Collaborative, fast-paced, international work environment with open communication and encouraged innovation.
• Professional development alongside telecom industry experts.
• Opportunities to work in different hirify.global offices as the career develops.
• Growth opportunities in a rapidly expanding telecommunications company.
• Exposure to major transactions affecting the future of the telecommunications industry.
• Results-driven environment focused on efficiency, creativity, and tangible impact.