We are seeking a Senior Hardware Design Engineer with a strong background in analogue, digital and power supply design. You will play a key role in designing, simulating, and verifying a wide range of circuits for high-speed optical transceiver products used in cutting edge, optical switching networks for power efficient and performance optimised AI/ML applications. You will work in a multidisciplinary team to develop optimal solutions across the product architecture and physical design. Responsibilities Hardware design of mixed signal circuits to control Photonic Integrated Circuits (PICs). Perform circuit / layout simulations including signal / power integrity analysis. Develop and execute test plans for hardware validation, integration and verification. Troubleshoot and resolve hardware integration issues at the board and system levels. Documentation and change management of design, build and test specifications. Participate in design reviews and provide feedback on hardware architecture decisions. Supplier / CEM engagement during hardware design, bring-up and production support. Hands on lab work including practical testing and product validation. Skills & Experience 5 years of practical experience in design and verification of electronic solutions. Schematic capture, analogue / RF simulation and PCB layout. Analogue & digital peripherals including high speed DAC / ADC / uC etc… Circuit simulation using tools such as LTspice / TINA-TI for DC / transient analysis. High speed signal interfaces supporting up to 100Gbps using PAM4 modulation. Low noise, high efficiency, footprint optimised power supply design. PCB materials, construction and layout including impedance controlled traces. Knowledge of electro-mechanical and thermal design considerations. Practical debug skills, results analysis and report writing. Use of lab test equipment including power supplies, oscilloscopes, ESA’s etc… Ability to understand of complex ideas / concepts and present design solutions to a variety of audiences from multiple backgrounds. A humble attitude with good communication skills. Degree level qualification (BEng / MEng / PhD) in Electronic Engineering or equivalent. Experience With Some/all Of The Following Would Be Beneficial Industry standard MSA definitions for pluggable optical transceivers. Schematic capture using Siemens PADs Professional. Mechanical design using Solidworks 3D modelling software. Embedded firmware and microcontroller systems debugging. Standard serial interfaces including I2C, SPI, QSPI etc… Digital control loop theory, design and optimisation. Test automation using C# / Python for instrument / DUT control and data analysis. Product compliance testing including EMC / safety testing. RF measurements using spectrum analysers, VNAs and signal generators. Accelerating AI in a Low Carbon World – Oriole Networks is a photonic networking company, developing disruptive technologies for AI/ML and HPC networking that will revolutionise data centres.