Telecommunications Architect - 5G / FRMCS

About the Role

We are looking for an experienced Telecommunications Architect to support a strategic programme for a major railway client. The project focuses on 5G Core implementation and the transformation from GSM-R to FRMCS, a mission-critical initiative shaping the future of railway communications.

Location: Warsaw, Poznań, Wrocław, or Gdańsk

Work model: Hybrid – alternating schedule: 1 week on-site at client premises and 1 week remote

Cooperation model: B2B contract

What You'll Be Doing

• Design implementation and integration concepts for Core 5G and MCX with IWF
• Analyse requirements and define architecture for future FRMCS systems
• Prepare technical specifications and tender documentation (OPZ) for 5G, MCX, and GSM-R/FDS integration
• Evaluate available 5G market solutions and platforms
• Develop a migration strategy from GSM-R to FRMCS
• Lead technical consultations with manufacturers and solution vendors
• Support market consultation processes and target technology selection

What We're Looking For

• 3+ years in Core Network and/or MCX
• 2+ years creating technical and analytical documentation
• Hands-on experience gathering and analysing business and technical requirements
• Experience developing tender documentation or Terms of Reference (OPZ)

Technical Knowledge

• Strong knowledge of 5G Core architecture and solutions
• Practical knowledge of MCX systems and IWF
• Familiarity with 5G solution architecture and configuration
• Understanding of LTE and 5G network fundamentals
• Knowledge of 5G market products and platforms
• Knowledge of current GSM-R and FRMCS specifications
• Ability to design integration between Core 5G, MCX, GSM-R, and FRMCS environments

Languages

• Polish – C2/native, required
• English – minimum B1 for documentation reading and vendor collaboration

Nice to Have

• Knowledge of currently operating GSM-R and FDS system architecture
• Experience in operator or telecommunications projects
• Background in designing complex, mission-critical telecommunications systems
• Experience collaborating with telecommunications solution manufacturers