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  <jobs>
    <job>
      <externalid>0e39aebe-3ad</externalid>
      <Title>Network Engineer - ML Infrastructure (High-Speed Interconnects)</Title>
      <Description><![CDATA[<p>We are seeking exceptional ML Infrastructure Engineers with deep expertise in high-speed interconnect technologies to design, build, and optimise the network fabric that powers large-scale AI training and inference clusters.</p>
<p>This strategic role will drive innovation in high-bandwidth, low-latency, power-efficient interconnects critical for AI/ML clusters based on advanced computing platforms. You will have the opportunity to work on all modalities of interconnects connecting GPUs and switches both inside and between data centres, including our primary front and backend networks that train Grok and that customers use for inference.</p>
<p>Responsibilities:</p>
<ul>
<li>Design, validate, and productise high-speed copper and optical connectivity solutions for AI clusters (100k+ GPU scale).</li>
<li>Own vendor due diligence and onboarding for new 1.6T products including AEC and pluggable optical transceivers (DR4/8, FR4) including rigorous bring-up &amp; characterisation.</li>
<li>Investigate the opportunity for LPO and LRO in our network.</li>
<li>Evaluate early co-packaged and near-packaged engines for switches and GPUs.</li>
<li>Pathfinding for new interconnect modalities including VCSEL, microLED, THz radio-based solutions to improve network economics and reliability.</li>
<li>Work closely with vendors (transceiver, cable, SerDes, DSP, silicon photonics foundries) to influence roadmaps and ensure timely delivery of next-gen solutions.</li>
<li>Collaborate with ML training teams to translate workload communication patterns into concrete interconnect topology and optical reconfigurability requirements.</li>
<li>Perform system-level simulation of end-to-end fabric performance.</li>
<li>Drive failure analysis, root cause, and corrective actions for interconnect-related issues in production clusters through fleet-level metrics gathering and analysis.</li>
<li>Contribute to internal tooling and automation for interconnect health monitoring, telemetry, diagnostics, remediation and automated qualification pipelines.</li>
</ul>
<p>Basic Qualifications:</p>
<ul>
<li>At least 8+ years of hands-on experience in designing, deploying and operating high-speed copper and optical interconnects, preferably in a module design role or in a hyperscale datacentre environment.</li>
<li>Master&#39;s or PhD degree in Electrical Engineering, Photonics or Physics.</li>
<li>Deep knowledge of PAM4 SerDes performance, equalisation, jitter, crosstalk.</li>
<li>Solid operational understanding of FEC, Retimers, TIAs and Drivers.</li>
<li>Deep knowledge of optical link budget analysis and performance metrics including TDECQ, OMA, Tcode, stressed receiver sensitivity and associated diagnostics.</li>
<li>Expertise in transceiver components including CW lasers, SiPh PICs, EML, DSP, passive subassemblies, their failure modes and characterisation.</li>
<li>Knowledge of thermal, mechanical, power, signal integrity constraints in dense hardware.</li>
<li>Knowledge of SiPh design process, yield improvement and reliability testing.</li>
<li>Familiarity with CPO technologies and challenges/risk areas.</li>
<li>Familiarity with subcomponent supply chains and global manufacturers, ODMs and CMs.</li>
<li>Strong problem-solving skills and ability to thrive in a fast-paced, ambiguous setting.</li>
</ul>
<p>Compensation and Benefits:</p>
<p>$180,000 - $440,000 USD</p>
<p>Base salary is just one part of our total rewards package at X, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short &amp; long-term disability insurance, life insurance, and various other discounts and perks.</p>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange>$180,000 - $440,000 USD</Salaryrange>
      <Skills>high-speed copper and optical interconnects, PAM4 SerDes performance, equalisation, jitter, crosstalk, FEC, Retimers, TIAs, Drivers, optical link budget analysis, performance metrics, TDECQ, OMA, Tcode, stressed receiver sensitivity, associated diagnostics, CW lasers, SiPh PICs, EML, DSP, passive subassemblies, thermal, mechanical, power, signal integrity constraints, SiPh design process, yield improvement, reliability testing, CPO technologies, subcomponent supply chains, global manufacturers, ODMs, CMs</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>xAI</Employername>
      <Employerlogo>https://logos.yubhub.co/x.ai.png</Employerlogo>
      <Employerdescription>xAI creates AI systems to understand the universe and aid humanity in its pursuit of knowledge. The company operates with a flat organisational structure.</Employerdescription>
      <Employerwebsite>https://www.x.ai/</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://job-boards.greenhouse.io/xai/jobs/5043570007</Applyto>
      <Location>Palo Alto, CA</Location>
      <Country></Country>
      <Postedate>2026-04-18</Postedate>
    </job>
    <job>
      <externalid>e14d730c-676</externalid>
      <Title>Analog Design, Staff Engineer - SERDES</Title>
      <Description><![CDATA[<p>Our Hardware Engineers at Synopsys are responsible for designing and developing cutting-edge semiconductor solutions.</p>
<p><em>big_They work on intricate tasks such as chip architecture, circuit design, and verification to ensure the efficiency and reliability of semiconductor products.</em></p>
<p>These engineers play a crucial role in advancing technology and enabling innovations in various industries.</p>
<p>As a Staff Engineer in our Analog Design team, you will be responsible for designing and developing full custom analog circuit macros for high-speed SERDES PHY IP.</p>
<p>Your responsibilities will include designing and developing full custom analog circuit macros for high-speed SERDES PHY IP, including transceivers, voltage/current-mode drivers, PLLs, DLLs, equalizers (CTLE, FFE, DFE), impedance calibrators, serializers/deserializers, VCOs, phase interpolators, bandgap references, and clock data recovery circuits.</p>
<p>You will also collaborate with cross-functional teams locally and globally to refine circuit implementations and achieve optimal power, area, and performance targets.</p>
<p>In addition, you will ensure analog sub-block performance adheres to SerDes standards and architecture specification documents.</p>
<p>You will lead verification strategies using advanced simulator features to guarantee the highest quality design outcomes.</p>
<p>You will oversee physical layout processes to minimize parasitic effects, device stress, and process variations.</p>
<p>You will present simulation data for peer and customer reviews, and document design features and test plans.</p>
<p>You will consult on electrical characterization and support the integration of your circuit within the SerDes IP product.</p>
<p>You will handcraft high-performance clock and data paths using digital/CMOS logic cells and verify timing margins with SPICE and STA tools.</p>
<p>You will address ESD and latch-up design verification, crosstalk coupling impacts, and ensure robust mixed-signal analog design.</p>
<p>The impact you will have includes accelerating development of high-performance silicon chips critical to emerging technologies like AI, IoT, and 5G.</p>
<p>You will optimize chip designs for power, cost, and performance, helping customers reduce project schedules by months.</p>
<p>You will advance Synopsys&#39; leadership in high-speed interface IP and mixed-signal design innovation.</p>
<p>You will contribute to the creation of next-generation processes and models for manufacturing advanced chips.</p>
<p>You will support global collaboration, knowledge sharing, and technical excellence across teams and sites.</p>
<p>You will enhance customer satisfaction by delivering reliable, scalable, and high-quality analog IP solutions.</p>
<p>You will drive technical best practices and mentor junior engineers, strengthening the team&#39;s capabilities.</p>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>staff</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange></Salaryrange>
      <Skills>analog transistor-level circuit design, nanometer technologies, mixed-signal analog circuit design, physical layout optimization, SPICE simulation, static timing analysis (STA), digital/CMOS logic cells, high-performance datapath design, ESD/latch-up design verification, crosstalk coupling analysis</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Synopsys</Employername>
      <Employerlogo>https://logos.yubhub.co/careers.synopsys.com.png</Employerlogo>
      <Employerdescription>Synopsys is a leading provider of electronic design automation (EDA) software and services for the semiconductor and electronics industries.</Employerdescription>
      <Employerwebsite>https://careers.synopsys.com</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://careers.synopsys.com/job/noida/analog-design-staff-engineer-serdes/44408/93198373952</Applyto>
      <Location>Noida</Location>
      <Country></Country>
      <Postedate>2026-04-05</Postedate>
    </job>
    <job>
      <externalid>0b1006f8-b4f</externalid>
      <Title>Principal SerDes Systems Engineer</Title>
      <Description><![CDATA[<p>We are seeking a Principal SerDes Systems Engineer to join our team. As a Principal SerDes Systems Engineer, you will be responsible for developing and maintaining SerDes system models for NRZ and PAM4 transceivers targeting PCIe (128Gbps+) and Ethernet (200Gbps+) standards. You will also run comprehensive system simulations to verify and sign-off design performance across multiple protocols and channels.</p>
<p><strong>What you&#39;ll do</strong></p>
<ul>
<li>Developing and maintaining SerDes system models for NRZ and PAM4 transceivers targeting PCIe (128Gbps+) and Ethernet (200Gbps+) standards.</li>
<li>Running comprehensive system simulations to verify and sign-off design performance across multiple protocols and channels.</li>
</ul>
<p><strong>What you need</strong></p>
<ul>
<li>M.Sc. or Ph.D. in Electrical or Computer Engineering.</li>
<li>Strong experience modeling circuits and systems in MATLAB/Simulink.</li>
<li>Expertise in designing high-speed analog CMOS circuits.</li>
<li>Solid understanding of DSP and communications theory, including equalization, coding, and noise/crosstalk filtering.</li>
<li>Proficiency in analyzing link budgets for NRZ and/or PAM4 high-speed serial links.</li>
<li>Familiarity with wireline protocols (PCIe, Ethernet, JESD204C, CPRI) and optical protocols (LINEAR, RTLR).</li>
<li>Experience with circuit topologies used in high-speed SerDes Tx/Rx and Tx/Rx equalization techniques.</li>
<li>Hands-on lab testing for high-speed serial links and proficiency in C/Verilog-A/systemVerilog.</li>
</ul>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange></Salaryrange>
      <Skills>M.Sc. or Ph.D. in Electrical or Computer Engineering, Strong experience modeling circuits and systems in MATLAB/Simulink, Expertise in designing high-speed analog CMOS circuits, Solid understanding of DSP and communications theory, including equalization, coding, and noise/crosstalk filtering, Proficiency in analyzing link budgets for NRZ and/or PAM4 high-speed serial links, Familiarity with wireline protocols (PCIe, Ethernet, JESD204C, CPRI) and optical protocols (LINEAR, RTLR), Experience with circuit topologies used in high-speed SerDes Tx/Rx and Tx/Rx equalization techniques, Hands-on lab testing for high-speed serial links and proficiency in C/Verilog-A/systemVerilog, Innovative thinker with a passion for cutting-edge technology, Collaborative team player who thrives in a multidisciplinary environment, Analytical problem-solver with meticulous attention to detail, Effective communicator, able to translate complex concepts for diverse audiences, Adaptable and eager to learn, keeping pace with evolving industry trends, Customer-focused, dedicated to delivering exceptional support and results</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Synopsys</Employername>
      <Employerlogo>https://logos.yubhub.co/careers.synopsys.com.png</Employerlogo>
      <Employerdescription>Synopsys is a leading provider of electronic design automation (EDA) software and intellectual property (IP) solutions. The company&apos;s technology is used to design and develop complex electronic systems, including semiconductors, software, and systems-on-chip (SoCs).</Employerdescription>
      <Employerwebsite>https://careers.synopsys.com</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://careers.synopsys.com/job/eindhoven/principal-serdes-systems-engineer/44408/92341044576</Applyto>
      <Location>Eindhoven, North Brabant, Netherlands</Location>
      <Country></Country>
      <Postedate>2026-03-06</Postedate>
    </job>
    <job>
      <externalid>600601e3-040</externalid>
      <Title>Principal SerDes Systems Engineer</Title>
      <Description><![CDATA[<p>We are seeking a Principal SerDes Systems Engineer to join our team. As a Principal SerDes Systems Engineer, you will be responsible for developing and maintaining SerDes system models for NRZ and PAM4 transceivers targeting PCIe (128Gbps+) and Ethernet (200Gbps+) standards.</p>
<p><strong>What you&#39;ll do</strong></p>
<ul>
<li>Developing and maintaining SerDes system models for NRZ and PAM4 transceivers targeting PCIe (128Gbps+) and Ethernet (200Gbps+) standards.</li>
<li>Running comprehensive system simulations to verify and sign-off design performance across multiple protocols and channels.</li>
<li>Designing and proposing advanced algorithms to calibrate and adapt transceivers for optimal performance.</li>
<li>Correlating simulated performance with silicon measurements to ensure accuracy and reliability.</li>
<li>Providing expert assistance to customers for system-level performance issues and troubleshooting.</li>
<li>Collaborating with cross-functional teams of analog, digital, and hardware engineers throughout all stages of development.</li>
<li>Contributing to lab testing and analysis for high-speed serial links, ensuring robust design validation.</li>
</ul>
<p><strong>What you need</strong></p>
<ul>
<li>M.Sc. or Ph.D. in Electrical or Computer Engineering.</li>
<li>Strong experience modeling circuits and systems in MATLAB/Simulink.</li>
<li>Expertise in designing high-speed analog CMOS circuits.</li>
<li>Solid understanding of DSP and communications theory, including equalization, coding, and noise/crosstalk filtering.</li>
<li>Proficiency in analyzing link budgets for NRZ and/or PAM4 high-speed serial links.</li>
<li>Familiarity with wireline protocols (PCIe, Ethernet, JESD204C, CPRI) and optical protocols (LINEAR, RTLR).</li>
<li>Experience with circuit topologies used in high-speed SerDes Tx/Rx and Tx/Rx equalization techniques.</li>
<li>Hands-on lab testing for high-speed serial links and proficiency in C/Verilog-A/systemVerilog.</li>
</ul>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange></Salaryrange>
      <Skills>M.Sc. or Ph.D. in Electrical or Computer Engineering, Strong experience modeling circuits and systems in MATLAB/Simulink, Expertise in designing high-speed analog CMOS circuits, Solid understanding of DSP and communications theory, including equalization, coding, and noise/crosstalk filtering, Proficiency in analyzing link budgets for NRZ and/or PAM4 high-speed serial links, Familiarity with wireline protocols (PCIe, Ethernet, JESD204C, CPRI) and optical protocols (LINEAR, RTLR)</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Synopsys</Employername>
      <Employerlogo>https://logos.yubhub.co/careers.synopsys.com.png</Employerlogo>
      <Employerdescription>Synopsys is a leading provider of electronic design automation (EDA) software and intellectual property (IP) solutions. The company&apos;s technology is used to design and develop complex semiconductor products, such as microprocessors, memory chips, and graphics processing units.</Employerdescription>
      <Employerwebsite>https://careers.synopsys.com</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://careers.synopsys.com/job/mississauga/principal-serdes-systems-engineer/44408/92341044560</Applyto>
      <Location>Mississauga, Ontario, Canada</Location>
      <Country></Country>
      <Postedate>2026-03-06</Postedate>
    </job>
    <job>
      <externalid>a9af8bd7-647</externalid>
      <Title>Senior/Staff - Analog Design Engineer</Title>
      <Description><![CDATA[<p>We currently have 349 open roles.</p>
<p><strong>What you&#39;ll do</strong></p>
<p>You are an accomplished analog and mixed-signal design engineer, passionate about pushing the boundaries of high-speed interface technology. With a strong foundation in Electrical, Electronics, or VLSI Engineering, you have hands-on expertise in custom analog circuit design, particularly in the nanometer CMOS domain.</p>
<ul>
<li>Designing and developing high-speed analog and mixed-signal (AMS) circuit macros, including analog front-end transceivers, voltage/current-mode drivers, PLLs, DLLs, regulators, equalizers (CTLE, FFE, DFE), impedance calibrators, serializers/deserializers, VCOs, phase interpolators, bandgap references, CDR circuits, and injection-locked loops for High-Speed PHY IP in planar and FinFET CMOS technologies.</li>
</ul>
<p><strong>What you need</strong></p>
<ul>
<li>Bachelor’s degree (BE) plus 3+ years or Master’s degree (MTech) plus 2+ years of relevant experience in mixed-signal analog/custom circuit design, preferably in Electrical/Electronics/VLSI Engineering.</li>
</ul>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange></Salaryrange>
      <Skills>CMOS circuit design fundamentals, device physics, layout, parasitic extraction, SPICE simulation, high-speed SERDES and PHY IP, digital/CMOS logic cells, ESD and latchup design verification, crosstalk analysis, advanced simulation tools, full custom design of high-speed datapaths, timing margins</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Synopsys</Employername>
      <Employerlogo>https://logos.yubhub.co/careers.synopsys.com.png</Employerlogo>
      <Employerdescription>Synopsys drives the innovations that shape the way we live and connect. Our technology is central to the Era of Pervasive Intelligence, from self-driving cars to learning machines.</Employerdescription>
      <Employerwebsite>https://careers.synopsys.com</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://careers.synopsys.com/job/noida/senior-staff-analog-design-engineer/44408/90941185632</Applyto>
      <Location>Noida, Uttar Pradesh, India</Location>
      <Country></Country>
      <Postedate>2026-01-28</Postedate>
    </job>
  </jobs>
</source>