Lightmatter Logo

Lightmatter

Sr. Staff Physical Design Timing Engineer (STA)

Reposted 23 Days Ago
Be an Early Applicant
In-Office
Toronto, ON, CAN
Senior level
In-Office
Toronto, ON, CAN
Senior level
Responsible for timing constraints development, STA and timing closure on CMOS technologies, driving timing sign-off, analyzing power/performance tradeoffs, and running full-chip STA.
The summary above was generated by AI

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.

Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

Lightmatter is (re)inventing the future of computing with light!

About this role

We are hiring a Physical Design Timing Engineer to help drive backend digital execution for some of the leading photonics based interconnect solutions. You will work alongside a team of world-class scientists and engineers in defining how the system will be optimized and trailblaze problems that are new to the industry. If your passion is innovation, solving challenging technical problems and doing impactful work you should join our team.

In this job you will be responsible for timing constraints development, STA and timing closure on  leading edge CMOS technologies and flows. This includes synthesis through place and route, timing closure, and tapeout signoff.

Responsibilities
  • Drive the STA sign-off  for our flagship Silicon photonics chips at various technology nodes. 
  • Analyze fab guidelines and work with the methodology team to incorporate sign off corners, margins, and derates into timing analysis flows and methodologies.
  • Collaborate with the  architecture, RTL, and DFT teams to analyze the timing complexities and develop consolidated timing modes and constraints for synthesis, along with PnR and chip timing sign-off flows.
  • Analyze and understand the tradeoffs between power/performance and area goals to drive them into overall chip implementation flows.
  • Run full-chip STA and accurately project the timing summary across scenarios.
  • Leverage Tempus/PrimeTime to automate timing ECO generation for effective closure and support physical design implementation.
  • Document best practices and lessons learned to drive continuous improvements in future projects.

Qualifications:

  • Bachelor’s degree in Electrical Engineering or Computer engineering
  • 12 years of Physical Design experience, with a minimum of 5 years hands-on experience in ASIC STA and timing constraints development, timing closure with Cadence or Synopsys tools 
  • Experience in driving timing closure by effectively managing on-chip variation derates, optimizing multi-mode multi-corner constraints, and implementing robust clock tree building strategies
  • Well versed with scripting languages like TCL and Python, PERL, or Shell
  • Strong problem solving skills with attention to every technical aspect
  • Be a strong team player with clear and precise communication skills

Preferred Qualifications:

  • Master’s degree in Electrical Engineering or Computer engineering
  • A minimum of 8 years of hands-on experience in ASIC STA and timing constraints development, timing closure with Cadence or Synopsys tools 

We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.

Salary Range: total compensation goes beyond base salary, it also includes a new hire equity grant, annual performance-based equity, and other rewards that recognize your impact and contribution.
$191,000$220,000 CAD
Benefits
  • Comprehensive Health Care Plan (Medical, Dental & Vision)
  • Retirement Savings Matching Program
  • Life Insurance (Basic, Voluntary & AD&D)
  • Generous Time Off (Vacation, Sick & Public Holidays)
  • Paid Family Leave
  • Short Term & Long Term Disability
  • Training & Development
  • Commuter Benefits
  • Flexible, hybrid workplace model
  • Equity grants (applicable to full-time employees)

Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.

Export Control

Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws. 

Lightmatter Toronto, Ontario, CAN Office

18 E King Street, Toronto, Canada

Similar Jobs

5 Minutes Ago
Hybrid
Toronto, ON, CAN
Senior level
Senior level
Fintech • Machine Learning • Payments • Software • Financial Services
Leads multiple software engineering teams developing full-stack customer management capabilities for international card users. Responsibilities include people leadership, talent and succession planning, hands-on development, application craftsmanship, availability, resilience, scalability, fraud reduction, customer experience improvement, technology innovation, and mentoring. The role requires extensive software engineering experience, agile leadership, stakeholder influence, and knowledge of secure, highly available continuous-delivery practices.
Top Skills: Automated TestingAWSCi/CdFull-Stack Software DevelopmentGCPAzure
6 Minutes Ago
Hybrid
Toronto, ON, CAN
Internship
Internship
Fintech • Machine Learning • Payments • Software • Financial Services
Build and maintain features for a mobile Open Banking Connected Accounts Dashboard across frontend and backend systems. Responsibilities include writing clean code, participating in design sessions and code reviews, conducting unit, component, and integration testing, joining Agile ceremonies, collaborating with product and UX teams, and learning AWS cloud infrastructure. The role involves mobile interfaces, RESTful APIs, microservices, and cloud-native development.
Top Skills: Aws AuroraAws Ecs FargateAws LambdaClaude CodeCloudfrontCloudwatchDockerDynamoDBGitIam RolesIntellijJavaJavaScriptJenkinsKotlinMavenMicroservicesMySQLNew RelicOnepipelineRestful ApisS3Security GroupsSplunkSpring BootSqsSwiftVscodeWindsurf
6 Minutes Ago
Hybrid
Toronto, ON, CAN
Internship
Internship
Fintech • Machine Learning • Payments • Software • Financial Services
Develop full-stack features for an internal onboarding tool across frontend, backend, databases, infrastructure, testing, deployment, monitoring, and cybersecurity. Collaborate throughout the software development lifecycle, participate in Agile ceremonies, conduct design and code reviews, document technical work, and collaborate with Product and Analyst stakeholders. The role includes learning AWS cloud infrastructure and contributing to requirements definition, system architecture, and continuous improvement.
Top Skills: Amazon Route 53Amazon S3Api DesignAWSAws IamAws LambdaAws Security GroupsClaudeGitIntellijJavaJenkinsMicroservicesNode.jsOnepipelineOpenspecPostgresReactVscodeWindsurf

What you need to know about the Toronto Tech Scene

Although home to some of the biggest names in tech, including Google, Microsoft and Amazon, Toronto has established itself as one of the largest startup ecosystems in the world. And with over 2,000 startups — more than 30 percent of the country's total startups — Toronto continues to attract new businesses. Be it helping entrepreneurs manage their finances, simplifying business operations by automating payroll or assisting pharmaceutical companies in launching new drugs, the city's tech scene is just getting started.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account