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Senior Engineer

Job ID 2025-16318 Date posted Dec. 12, 2025 Location Cambridge, United Kingdom Category Software Engineering Apply

Job Summary

Seeking a Senior engineer to own timing constraints and synthesis for complex SoCs. You will develop and validate SDCs, drive synthesis for best PPA, perform LEC for RTL/netlist equivalence, and collaborate with design, architecture, IP, and physical teams to ensure robust timing closure and high-quality deliverables.

Responsibilities

  • Develop and maintain block- and top-level timing constraints (SDC).
  • Drive synthesis flows to meet PPA targets.
  • Perform LEC to ensure RTL-to-gate equivalence.
  • Define timing exceptions with design, architecture, and IP teams.
  • Work with technology/PD teams to integrate node-specific constraints.
  • Identify and communicate timing-critical paths to front-end teams.
  • Support implementation and signoff teams in timing debug.
  • Review final chip-level STA reports and contribute to signoff.
  • Improve timing, synthesis, and LEC methodologies and automation.

Preferred Skills & Experience

  • Deep SDC development experience.
  • Hands-on synthesis (DC/FC/Genus).
  • LEC proficiency (Formality/Conformal).
  • Solid digital design and CDC understanding.
  • Strong STA expertise (PrimeTime/Tempus).
  • Strong scripting (Tcl/Python).
  • Experience with ARM or 3rd-party IP integration.
  • Prior tapeout and timing-closure experience.

Nice to Have skills and experience

  • Physical-aware or topographical synthesis.
  • Low-power (UPF/CPF) flows.
  • Advanced node experience (≤5nm).
  • AOCV/POCV and statistical timing knowledge.
  • DFT timing constraints experience.
  • CDC/RDC analysis tool familiarity.

Accommodations at Arm

At Arm, we want to build extraordinary teams. If you need an adjustment or an accommodation during the recruitment process, please email accommodations@arm.com. To note, by sending us the requested information, you consent to its use by Arm to arrange for appropriate accommodations. All accommodation or adjustment requests will be treated with confidentiality, and information concerning these requests will only be disclosed as necessary to provide the accommodation. Although this is not an exhaustive list, examples of support include breaks between interviews, having documents read aloud, or office accessibility. Please email us about anything we can do to accommodate you during the recruitment process.

Hybrid Working at Arm

Arm’s approach to hybrid working is designed to create a working environment that supports both high performance and personal wellbeing. We believe in bringing people together face to face to enable us to work at pace, whilst recognizing the value of flexibility. Within that framework, we empower groups/teams to determine their own hybrid working patterns, depending on the work and the team’s needs. Details of what this means for each role will be shared upon application. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution. Please talk to us to find out more about what this could look like for you.

Equal Opportunities at Arm

Arm is an equal opportunity employer, committed to providing an environment of mutual respect where equal opportunities are available to all applicants and colleagues. We are a diverse organization of dedicated and innovative individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Power the Future on Arm

Working in software engineering at Arm is about shaping a future of technology for which we don't yet have words. Our engineers lead innovation in physical IP, AI and machine learning, cloud architecture, automotive tech, and every aspect of computing that matters.

Spanning software's full spectrum, from compilers to AI-powered IoT and beyond, your code can enable virtually anything to be produced on silicon. Whether you're developing award-winning VR gaming or life-enhancing medical equipment, you can improve the lives of millions by being your brilliant self at Arm.

Drive change on Arm

At Arm, you'll influence 100% of the world's connected devices and all their applications. From healthcare and infrastructure to virtual reality, you'll affect nearly all industries worldwide, racing toward new milestones and achievements together.

Revolutionary Benefits

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Life at Arm

Life in the office doesn’t get any better, especially when those offices are as sleek as ours and the people in them are innovative and supportive. Combine that with our focus on delivering as One Arm, and you’ll experience the kind of collaboration and togetherness that’s rare to find elsewhere. We share so much in common, not least a passion for progress, but we also celebrate each other's diversity.

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