Analog IC Design Engineer – High-Speed Mixed-Signal Design

Location: Remote/Germany
Employment Type: Full-time
Start Date: ASAP
Experience: 5+ years

About the Opportunity

We are seeking an experienced Analog IC Design Engineer with a strong background in high-speed analog and mixed-signal integrated circuit design to join an innovative semiconductor company developing next-generation electro-optical transceiver solutions.

This role is ideal for engineers who have designed circuits operating at 100 Gb/s and above, with experience in 200 Gb/s and 400 Gb/s systems considered highly desirable. You will work closely with photonic IC designers to develop monolithically integrated electronic circuits that interface directly with advanced silicon photonic devices, delivering industry-leading performance across process, voltage, and temperature (PVT) corners.

Key Responsibilities

• Design high-performance analog and mixed-signal circuits in BiCMOS technologies for ultra-high-speed optical communication applications.
• Develop precision analog building blocks including:
  • High-speed amplifiers
  • OpAmps
  • Voltage regulators
  • PVT-independent biasing circuits
  • Temperature-independent bandgap references
• Design and optimize high-speed electrical and electro-optical control loops, including nested feedback loops for:
  • DC Offset Cancellation
  • Receive Signal Strength Indicator (RSSI)
  • Loss of Modulation (LOM)
  • Loss of Signal (LOS)
  • Squelch
  • Automatic Gain Control (AGC)
• Design analog-based digital gates, analog multiplexers, and chip-level schematic hierarchies using the Cadence design environment.
• Develop interface circuitry for I²C and SPI control using available IP blocks.
• Apply layout-aware design techniques focused on device matching, current density, and minimizing parasitics.
• Perform LVS/DRC verification and support analog design verification to ensure specification compliance.
• Define production test strategies and collaborate closely with test engineering.
• Support product qualification, manufacturing, and customer technical activities.
• Drive continuous improvements in IC design methodologies and best practices.

Required Profile

Essential Experience

• M.Sc. in Electrical Engineering or a related discipline.
• Minimum 5 years of industry experience in analog or mixed-signal IC design.
• Proven experience designing high-speed analog circuits operating at 100 Gb/s or higher.
• Experience developing circuits for 100G, 200G, 400G or faster optical communication systems.
• Strong understanding of signal integrity, bandwidth optimization, jitter, noise, timing, and high-frequency analog design challenges.
• Extensive experience with the Cadence Design Framework and industry-standard EDA tools.
• Strong knowledge of chip-level IC development flows with a focus on manufacturability, quality, and reliability.

Preferred Experience

• Experience with BiCMOS process technologies.
• Experience co-designing electronics with photonic integrated circuits (PICs).
• Familiarity with optical transceivers, SerDes, CDRs, TIAs, laser drivers, or related high-speed communication circuits.

Darwin Recruitment is acting as an Employment Agency in relation to this vacancy.

Nozipho Mbatha