Digital Design Verification Engineer

Digital Design Verification Engineer LocationBristol, UK; Austin, TXEmployment TypeFull timeLocation TypeOn-siteDepartmentEngineeringASICCompensationBristolStarting from £123K • Offers EquityAustinStarting from $217K • Offers EquityAbout OLIXAI is growing faster than any technology in history and the explosion in demand has created a massive infrastructure gap; we can no longer build chips or power stations fast enough to keep up. The industry is still leaning on a ten-year-old hardware blueprint that has reached its limit. A new paradigm that is faster and more efficient will be the biggest economic opportunity of the next century and create the most important company of the next decade. The OLIX Decode Accelerator 1 (DX-1) is the first accelerator architected specifically for decode. Rack-scale co-design of logic, data movement, packaging, optics and interconnect enables a step change in system level performance.The RoleWe are seeking highly skilled and motivated Senior / Staff Digital Verification Engineers with a strong background in CMOS digital design and verification to take ownership of the functional correctness of high-speed, real-time data-processing silicon, from early algorithm modelling through verified RTL, sign-off, and silicon bring-up.You will join a multidisciplinary group creating groundbreaking hardware where digital, optical, and mixed-signal domains intersect.The ideal candidate brings deep expertise in digital verification methodologies, a solid understanding of hardware architecture, and a passion for building provably correct, high-performance systems that underpin breakthrough AI hardware.ResponsibilitiesOwn end-to-end verification of high-throughput digital pipelines supporting multi-GSPS input rates, continuous streaming data paths, deep pipelining, and robust hand-shaking in advanced CMOS nodesDevelop and maintain comprehensive verification environments using SystemVerilog/UVM, including constrained-random testing, coverage closure, and regression automationDefine and implement assertion-based verification strategies for control logic, data-path correctness, CDC/RDC, and protocol complianceApply formal verification techniques (property checking, assertions, equivalence checking) to complement simulation-based verification and accelerate bug discoveryModel and validate algorithms using MATLAB/Simulink or Python, ensuring functional equivalence from algorithmic models through RTL and gate-level sign-offSupport FPGA prototyping and silicon bring-up by developing targeted testcases, debug strategies, and post-silicon validation plansCollaborate closely with digital design, optical-hardware, mixed-signal, and software teams to ensure correct integration across clock domains, interfaces, and firmware abstractionsAnalyse verification results to identify root causes, drive design fixes, and improve verification efficiency and reuseContribute to verification methodology development, documentation, and design/verification reviews; mentor junior engineers where appropriateSkills & Experience5+ years of hands-on experience in digital verification for high-performance ASICs or SoCsOwnership of verification for at least one complex block or subsystem processing continuous real-time data streamsStrong proficiency in SystemVerilog, assertions (SVA), and modern verification methodologies (e.g. UVM. CocoTB)Proven experience verifying designs operating in GHz-class clock domains, including CDC/RDC analysisFamiliarity with industry-standard EDA flows: RTL simulation, formal verification, linting, CDC/RDC, STA, power-intent (UPF/CPF), and gate-level simulationExperience verifying high-speed IP such as SerDes, DDR/HBM, PCIe, Ethernet, or similar interfacesProficiency with MATLAB/Simulink or Python/NumPy for algorithm modelling, fixed-point analysis, and test-vector generationSolid grounding in digital design principles, computer architecture, DSP fundamentals, and semiconductor basicsClear communicator who...