Telecom Migration Engineer - Critical Networks (m/w/d)

ISG Personalmanagement GmbH; Wien; On-site; EUR 70,000 - 85,000; Full time

Job summary

ISG Personalmanagement GmbH seeks a Telecom Migration Engineer for Critical Networks to lead the migration from GSM-R to FRMCS across major European rail projects. The role focuses on designing target architectures and coordinating with operators, railways, customers, suppliers and OEM partners to ensure continuous, safe train-ground communications.

You will define migration phases, perform risk mitigation, and contribute to PoCs and field tests while leveraging FRMCS and 5G knowledge.

Qualifications

• Completed technical degree in telecommunications, electrical engineering, IT, or equivalent background.
• Several years of professional GSM-R, MCX, railway telecommunications, or related networks experience.
• Solid GSM-R architectures and Core NSS knowledge; FRMCS and 5G familiarity.
• Experience in international customer projects and technical stakeholder management.
• Excellent command of German and English (spoken and written).
• Willingness for occasional business travel.

Responsibilities

• Target Architecture Design: Develop target architectures, transition concepts, and migration strategies for GSM-R to FRMCS evolution.
• Risk Mitigation & Continuity: Define migration phases, fallback strategies, and rollback plans to ensure uninterrupted operations.
• Technical Analysis & Engineering: Analyze GSM-R infrastructures, prepare High-Level Designs (HLDs), concepts, and MoPs.
• Technical Stakeholder Management: Coordinate topics with operators, railway companies, customers, suppliers, and OEM partners.
• Pilots & Innovation: Support pilot projects, PoCs, field tests, and initial FRMCS implementations.

Skills

GSM-R architectures

Core NSS components

FRMCS knowledge

MCX (MCPTT/MCData/MCVideo)

5G environments

Stakeholder management

International projects

German & English language skills

Education

Technical degree in Telecommunications / Electrical Engineering / Information Technology

Job description

Telecom Migration Engineer - Critical Networks (m/w/d)

EUR 70.000 up to EUR 85.000 gross yearly

Are you passionate about leading technological transformation in critical transport infrastructures? The railway sector is currently undergoing one of its most significant historical revolutions: the migration from traditional analog and digital systems (GSM-R) to the next generation of 5G-based Future Railway Mobile Communication Systems (FRMCS). We are looking for an experienced Network Migration Systems Engineer to join an international leader in mission-critical communication solutions. In this role, you will play a pivotal part in designing, structuring, and executing the transition roadmap toward FRMCS across major European projects, ensuring absolute continuity and safety of railway operations at all times.

Key Responsibilities

• Target Architecture Design: Develop target architectures, transition concepts, and advanced migration strategies to evolve existing GSM-R networks into FRMCS environments.
• Risk Mitigation & Continuity: Define migration phases, fallback strategies, and rollback plans to ensure uninterrupted availability of train-to-ground communication services during migration.
• Technical Analysis & Engineering: Analyze existing GSM-R infrastructures to assess technical, operational, and regulatory impacts. Create High-Level Designs (HLDs), technical concepts, and Method of Procedures (MoPs).
• Technical Stakeholder Management: Act as the key technical interface, coordinating technical topics with infrastructure operators, railway companies, customers, suppliers, and OEM partners.
• Pilots & Innovation: Technically and organizationally support pilot projects, Proof-of-Concepts (PoCs), field tests, and initial commercial FRMCS implementations.

What We Are Looking For

• Education: Completed technical degree in Telecommunications, Electrical Engineering, Information Technology, or a comparable background.
• Professional Experience: Several years of professional experience in GSM-R, Mission Critical Communications (MCX), railway telecommunications, or comparable telecommunication networks.
• Technical Expertise: Solid understanding of GSM-R network architectures and Core NSS components, combined with familiarity in FRMCS, MCX (MCPTT, MCData, MCVideo), and 5G environments.
• Migration Background: Proven experience in the planning, migration, or technical evolution of complex live telecommunication networks.
• Key Competencies: Demonstrated experience in international customer projects and technical stakeholder management.
• Languages: Excellent command of both German and English (spoken and written).
• Availability: Readiness for occasional business travel.