Contract Signal Integrity / Power Integrity Engineer

Job Title: Contract Signal Integrity / Power Integrity Engineer (UK Nationals Only) Location: 100% Remote (UK-Based) Contract Duration: 6–12 Months Start Date: ASAP Clearance Requirement: UK Nationals Only (Due to project sensitivity) Overview: We are seeking an experienced Signal Integrity / Power Integrity Engineer for a long-term contract role supporting advanced hardware development projects within a high-reliability environment. This role is fully remote but restricted to UK nationals due to the nature of the work and data security requirements. Key Responsibilities: Perform advanced Signal Integrity (SI) and Power Integrity (PI) analysis across high-speed digital designs. Model and simulate high-speed interconnects, PCB stack-ups, power delivery networks (PDNs), and associated parasitics. Provide design recommendations to ensure signal quality, noise margin, and power stability are within specification. Work closely with PCB layout teams, hardware designers, and systems engineers to optimize designs from concept to production. Validate simulation models with lab measurements and assist in root cause analysis of SI/PI-related issues. Document analysis results, methodologies, and recommendations for both internal teams and customer reporting. Required Skills and Experience: Proven experience in SI/PI engineering within high-speed digital system environments. Strong proficiency with industry-standard simulation tools such as: Ansys SIwave, Keysight ADS, Cadence Sigrity, or Mentor HyperLynx In-depth understanding of PCB design and manufacturing constraints affecting signal and power integrity. Solid knowledge of transmission line theory, impedance matching, crosstalk, jitter, PDN resonance, and decoupling strategies. Hands-on experience with simulation-to-lab correlation using oscilloscopes, VNAs, TDRs, and probes. Ability to work independently in a remote setting, collaborating virtually with multi-disciplinary teams. Preferred Qualifications: Degree in Electrical Engineering or a related field. Experience working in sectors such as aerospace, defence, telecommunications, or high-performance computing. Familiarity with DDR, PCIe, Ethernet, or SerDes interfaces at multi-Gbps rates. Additional Information: This is a UK-based remote role; applicants must be UK nationals to be considered. Engagement is expected to last between 6 and 12 months, with potential for extension based on project scope. #J-18808-Ljbffr