Principal High Speed Mixed Signal IC Design Engineer

About the client An innovative semiconductor company developing advanced integrated circuits for next-generation communication and connectivity applications. They combine high-performance analog, mixed-signal and digital technologies to deliver highly integrated semiconductor solutions for demanding applications. As an engineering-led company, we offer experienced engineers the opportunity to shape architectures, own critical technology developments, and see their work progress from concept through silicon. The Opportunity Seeking a Principal High-Speed Mixed-Signal IC Design Engineer to lead the development of advanced integrated circuits involving: High-speed data conversion Clocking Analog and mixed-signal technologies This is a senior technical role for an engineer with strong expertise in high-performance IC design who can operate across: Architecture -> Circuit Design -> Silicon Validation The successful candidate will: Take ownership of key technology developments Define architectures Design critical circuit blocks Drive products from concept through silicon validation and into production This role offers the opportunity to work in a fast-moving, engineering-led start-up where technical leadership, innovation and ownership have a direct impact on the company's success. Key Responsibilities Lead the architecture and design of advanced high-speed mixed-signal ICs. Develop and optimise critical analog and mixed-signal building blocks, including: High-speed data converters Clock generation and PLLs Timing circuits High-speed interfaces Analog/RF signal paths Analyse and optimise designs for: Noise Linearity Power Timing performance Signal integrity Perform transistor-level simulation, verification and optimisation across PVT conditions. Work closely with layout, digital and system engineers to achieve robust silicon implementation. Support silicon bring-up, laboratory characterisation and performance optimisation. Provide technical leadership within a small, highly experienced engineering team. Required Experience Several years in analog, mixed-signal or high-speed IC design. Proven experience delivering complex ICs from architecture definition through silicon validation. Strong background in one or more of the following: High-speed data converters (ADC/DAC) Clock generation and PLLs Timing circuits High-speed interfaces/SerDes Analog/RF signal paths Strong understanding of: Clock jitter Phase noise Noise performance Mixed-signal design trade-offs Experience with Cadence Virtuoso, Spectre or equivalent IC design environments. Experience with EM co-simulation and layout-aware design for high-speed circuits. Experience with advanced CMOS technologies and silicon debug. Ability to independently drive complex technical challenges and make architecture-level decisions. Desirable Experience Low-phase-noise oscillators, PLLs and precision timing circuits. Calibration and digital correction techniques. Experience working in a start-up or small engineering team. What We're Looking For We are looking for an exceptional engineer who combines: Deep technical expertise System-level understanding You should be comfortable moving between: Architecture and Circuit Implementation and solving complex mixed-signal challenges while taking ownership of critical semiconductor developments. You will thrive in a collaborative start-up environment where engineers are encouraged to: Think broadly Take complete ownership of their work Deliver products from concept through production This is an opportunity to make a significant technical impact within a growing semiconductor company. #J-18808-Ljbffr