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K Two Technology Consulting AB

System Engineers for Telecom (L1 and L2)

K Two Technology Consulting AB
Sweden · Full-time · Entry
We look for system focused engineers to work with early-phase studies and simulation work for 5G NR feature evolution.

Role Purpose

System design, feature development, and verification teams, with a focus on simulation-driven analysis and 3GPP-aligned architecture exploration.

The role supports for Layer 1 (PHY) and for Layer 2 (MAC/RLC/PDCP).

Key Responsibilities

  • Lead and support technical studies during feature pre-development.
  • Execute simulation-based evaluations (link-level, scheduler behaviour, accelerator feasibility).
  • Provide architectural input and early design feedback to development teams.
  • Align technical work with 3GPP standards and internal Ericsson architecture (e.g., MSRBS, GPP).
  • Collaborate cross-functionally with system, software, and verification teams.

General Competence Requirements

  • Solid grasp of the 5G NR protocol stack (based on 3GPP).
  • Familiarity with simulation environments and analytical tools.
  • Capability to work independently, document findings, and communicate effectively.
  • Willingness and ability to ramp up on Ericsson-specific platforms.

Layer 2 (L2) Focused Candidate

Must-Have Skills:

  • Deep understanding of:
  • MAC scheduling, multiplexing
  • Logical-to-transport channel mapping
  • Buffer Status Reports (BSR), Scheduling Requests (SR)
  • RLC modes: TM, UM, AM
  • Knowledge of:
  • User Plance Control (UPC)
  • Radio Resource Management (RRM)

Nice-to-Have:

  • PDCP knowledge (ciphering, header compression)
  • Experience with simulation or log analysis tools
  • Python/Matlab/C++ scripting for automation or modelling

Layer 1 (L1) Focused Candidate

Must-Have Skills:

  • Strong experience in:
  • Link-level simulations (e.g., Falcon)
  • 5G PHY protocol stack: UL/DL procedures, HARQ, beamforming
  • Waveforms and signal design (OFDM, SC-FDMA)
  • Channel coding (LDPC, Polar)
  • Synchronization signals (PSS/SSS, DMRS, CSI-RS)
  • Slot/frame structure understanding (38.211/213)

Nice-to-Have:

  • Experience integrating simulations with HW testbeds
  • Understanding of FAPI/nFAPI or O-RAN PHY interface specs

Ramp-Up & Support

  • Prior experience with Ericsson internal platforms is not required.
  • Onboarding and mentorship will be provided to help candidates ramp up effectively on Ericsson tools and workflows.

Key Skills

Ranked by relevance

simulation
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Country Guide

Sweden

Nordic quality of life with strong tech brands

Posted
May 26, 2025
Type
Full-time
Level
Entry
Location
Stockholm
Company
K Two Technology Consulting AB

Industries

Hospitals Health Care Non-profit Organizations Government Administration

Categories

Information Technology

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