Graduate Engineer: 5G NR-NTN Protocols & DSP

Skylo Technologies, Inc.; Espoo; Hybrid; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Competitive compensation packages

Healthcare & Life Insurance

Wellness & lunch benefits

Phone & Internet allowance

Learning & development budget

Job summary

Skylo Technologies, Inc. in Espoo, Finland is seeking a graduate engineer to join our Protocol Stack team. You will work on 5G NR-NTN Layer 1 and Layer 2 implementations, learning to design, implement, and validate PHY, MAC, and schedulers on Skylo's NTN vRAN platform with mentorship from senior engineers.

This hands-on role ships to a live satellite network. You will collaborate with RF, systems, and integration teams, build test cases and automation, and contribute to code reviews,

Qualifications

• Bachelor's, Master's, or PhD in Electrical Engineering, Wireless Communications, Computer Science, or closely related field
• Strong programming ability in C++, with memory management and STL knowledge
• Working knowledge of digital communications and signal processing fundamentals: modulation, coding, OFDM
• Familiarity with 5G NR or LTE concepts: frame/slot, HARQ, scheduling
• Comfortable with Linux and Git

Responsibilities

• Design and implement 5G NR Layer 1 DSP algorithms for Doppler tracking and ICI mitigation
• Write and maintain C++ code for MAC and schedulers in L1/L2
• Implement NTN-specific L1 adaptations: HARQ timers, timing advance pre-compensation
• Contribute to MAC scheduler work for NTN: HARQ, CE mode scheduling
• Build test cases, simulation harnesses, and automation for L1/L2
• Support lab and field validation across NTN environments
• Debug using GDB, Valgrind, perf, and Wireshark
• Translate 3GPP NR‑NTN specs into software requirements
• Participate in code reviews, architecture discussions, and documentation
• Use AI coding assistants across development lifecycle

Skills

C++ programming

Linux

Git

Debugging

Education

Bachelors, Masters, or PhD in Electrical Engineering/Wireless Communications/CS

Tools

GDB

Valgrind

Perf

Wireshark

Job description

Skylo Technologies, Inc. in Espoo, Finland is seeking a graduate engineer to join our Protocol Stack team. You will work on 5G NR-NTN Layer 1 and Layer 2 implementations, learning to design, implement, and validate PHY, MAC, and schedulers on Skylo's NTN vRAN platform with mentorship from senior engineers.

This hands-on role ships to a live satellite network. You will collaborate with RF, systems, and integration teams, build test cases and automation, and contribute to code reviews,