Qualcomm on cord

Qualcomm

Server CPU Clock Physical Design Engineer

External position
Cambridge, UK
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Telecommunications
Delivering intelligent computing everywhere.
Posted
5 days ago
Checked
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21 hours ago

Skills & Experience

Job roles: Embedded Developer
Experience level: Lead
Core skills considered: Python, Perl
Other skills considered: Tcl

Logistics

Base salary: Undisclosed
Some companies on cord are unable to disclose salaries publicly due to internal company policies. Message the company for salary information.
Employment type: Permanent
Remote working: On-site
Visa sponsorship: Not available

Job Description

Qualcomm is seeking an experienced CPU Clock Physical Design Engineer to join the Nuvia Data Center CPU team in Cambridge, UK. In this role, you will help define, implement, and optimize best-in-class clock generation and distribution solutions for high-frequency CPU designs. You will work closely with microarchitecture, RTL design, CAD, circuit design, block-level physical design, and top-level physical design teams to deliver robust, low-skew, low-power clocking solutions for next-generation CPUs.

This is a high-impact technical role for engineers who enjoy solving complex clocking, timing, power, and implementation challenges. You will have the opportunity to influence CPU clocking architecture and methodology from early design planning through physical implementation, signoff, and silicon correlation.

This position is open for Staff Engineer level, with scope, ownership, and technical leadership scaled according to experience.


Key Responsibilities

As a Server CPU Clock Physical Design Engineer, you will:

  • Define and drive the overall clock generation and clock distribution methodology for next-generation data center CPU designs.
  • Work with microarchitecture, RTL, CAD, circuit, block-level physical design, and top-level physical design teams to understand, implement, and validate CPU clocking requirements.
  • Architect, implement, and optimize low-skew, low-power clock networks using approaches such as clock H-trees, clock mesh, clock spines clocking methodologies.
  • Partner with CAD and physical design teams to develop and deploy clocking techniques that optimize skew, latency, clock power, timing margin, routability, and design convergence.
  • Use SPICE simulation and circuit-level analysis to validate clock circuits, clock paths, and electrical behaviour across process, voltage, and temperature conditions.
  • Analyse and debug clock-related timing, power, noise, variation, and physical implementation issues across multiple modes, corners, and operating conditions.
  • Provide feedback and guidance to block-level and top-level physical design engineers on required clocking fixes, optimization opportunities, and signoff risks.
  • Collaborate with PLL, timing, power, CAD, and implementation teams to align clock source assumptions, jitter budgets, clock uncertainty, and signoff methodology.
  • Develop, document, and improve clock construction, analysis, and validation flows for future CPU generations.
  • For Staff-level candidates, provide technical leadership, mentor engineers, influence cross-functional methodology, and drive resolution of critical clocking challenges.

Required Skills and Experience

We are looking for candidates with strong experience in CPU clocking, physical design, timing, and circuit-aware implementation.

The ideal candidate will have:

  • Strong experience in the construction and analysis of low-skew and low-power clock generation and distribution networks.
  • Hands-on experience with clock distribution structures and methodologies such as Clock H-tree, Clock Mesh, Clock Spines.
  • Strong understanding of CTS, clock balancing, insertion delay, skew optimization, useful skew, clock power reduction, and clock latency trade-offs.
  • Good understanding of device physics, RC delay, signal integrity, variation, and electrical effects that influence clock quality and timing robustness.
  • Proficiency in SPICE simulation and analysis for circuit design, clock-path validation, and electrical verification.
  • Strong understanding of static timing analysis and the interaction between clock architecture, timing closure, jitter, uncertainty, OCV/AOCV/POCV, setup/hold closure, and signoff quality.
  • Ability to debug complex clocking issues across implementation, timing, power, noise, variation, and circuit domains.
  • Experience working with industry-standard EDA implementation and signoff flows for physical design, timing analysis, power analysis, and physical verification.
  • Strong communication skills and the ability to work effectively with global, cross-functional engineering teams.

Minimum Qualifications

Candidates should typically have one of the following:

  • Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field with relevant experience in hardware engineering, CPU design, physical design, clock design, or implementation.
  • Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field with relevant experience in hardware engineering, CPU design, physical design, clock design, or implementation.
  • PhD in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field with relevant experience in CPU design, physical implementation, clock design, or circuit-aware methodology.

The role is intended for experienced candidates and is open for Staff Engineer level.


Preferred Qualifications

  • Experience defining or deploying clock methodology across multiple designs, projects, or technology generations.
  • Strong background in chip-level or top-level physical design, block integration, standard-cell optimization, and clock construction.
  • Experience working in advanced semiconductor process nodes, especially 7nm and below.
  • Proficiency with PLL specifications, clock source modelling, skew estimation, jitter budgeting, and jitter measurements. Experience with high-frequency CPU or high-performance compute clocking.
  • Experience with power-aware clocking, clock gating, resonant or mesh-based clocking strategies, and clock power optimization.
  • Familiarity with multi-corner multi-mode timing closure and variation-aware implementation methodologies.
  • Experience developing automation or analysis flows using TCL, Python, Perl, or similar scripting languages.
  • For Staff-level candidates, demonstrated ability to lead technical initiatives, influence cross-functional teams, define methodology, and mentor other engineers.
Server CPU Clock Physical Design Engineer at Qualcomm
Position posted 5 days ago

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Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
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Requests
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Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
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