Senior Development Test Engineer - Pre & Post-Silicon Software Test, Validation and Characterization

Lumilens

$180K — $216K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8-10 years in post-silicon validation or system software testing for complex SoCs/ASICs/GPUs.
  • Advanced proficiency in C and Python for low-level test content and automation frameworks.
  • Experience with Shmoo plotting, jitter analysis, and margin definition.
  • Hands-on experience with fault injection and recovery validation campaigns.
  • Familiarity with lab equipment like oscilloscopes, logic analyzers, and JTAG debuggers.
  • Understanding of high-speed protocols (PCIe, CXL, UCIe) and control buses (I2C, SPI).
  • Strong knowledge of power systems and their management, including PMIC telemetry and voltage regulation.
  • Competency in Git, CMake, and data analysis tools, including AI-based automation tools.

Responsibilities

  • Own the end-to-end testing and validation lifecycle for multi-die architecture.
  • Define comprehensive test strategies and coverage targets for development.
  • Write and execute low-level C and Python automated test suites.
  • Build scalable test frameworks for continuous validation and hardware-in-the-loop integration.
  • Develop correlation test suites and ensure smooth lab-to-ATE handoffs.
  • Create minimally invasive infrastructures for fault injection testing.
  • Conduct rigorous fault testing and validate system firmware resilience.

Benefits

  • Opportunity to participate in the company's long-term growth via equity options.
  • Access to advanced lab instrumentation and technology for testing.
  • Engagement in cutting-edge work with multi-die architecture.
  • Work in a collaborative environment with a focus on continuous improvement.
  • Potential for professional development and advancement within a leading tech company.
Full Job Description
About the role

We are seeking an experienced to own the end-to-end testing, characterization, and failure analysis strategy for complex, next-generation multi-die packages.

You will own the complete validation lifecycle across a multi-die architecture-covering high-speed die-to-die (UCIe) interconnects, Power Delivery Networks (PDN/PMIC), Platform Management Controllers (PMC), PCIe/CXL subsystems.

Additionally, you will apply statistical analysis and machine learning to test data-driving outlier detection, bench-to-ATE correlation, and predictive telemetry signals-without treating ML models as a substitute for true physical root-cause analysis.

What you'll do

Test content and automation

  • Test Plan Ownership: Define development test strategies, coverage targets, content architecture, and strict traceability from architectural requirements to validation evidence.
  • Bare-Metal & C/Python Test Content: Write low-level C and Python test suites-including bare-metal exercisers, traffic generators, stress patterns, and custom firmware drivers/hooks.
  • Scalable Automation & HIL: Build robust test frameworks featuring instrument control, automated sequencing, structured result capture, and Hardware-in-the-Loop (HIL) CI/CD integration for continuous validation.
  • Bench-to-ATE Handoff: Develop lab-to-ATE correlation test suites and drive smooth handoffs to Product & Test Engineering (PTE)
  • Own the development test plan: coverage goals, content architecture, and the traceability between a requirement, the test that exercises it, and the evidence it passed.


Characterization and margin

  • Injection Frameworks: Build minimally invasive fault-injection hardware/software infrastructure that perturbs target datapaths without destabilizing the test setup itself.
  • Protocol & Platform Fault Testing: Execute rigorous error campaigns targeting CRC retries, lane degradation/repair, sideband timeouts, PCIe AER, DMA/IOMMU translation faults, and PMIC reset conditions.
  • Firmware & Resilience Testing: Validate system firmware error handlers, watchdog timers, and hardware-level fault containment behavior under out-of-spec conditions.


Required qualifications

  • Experience: 8-10+ years in post-silicon validation, system software testing, silicon bring-up, or development test for complex SoCs / ASICs / GPUs.
  • Software/Firmware Skills: Advanced proficiency in C and Python for low-level bare-metal test content, hardware abstraction, and automation frameworks.
  • Silicon Characterization: Proven experience with Shmoo plotting PVT corner testing, jitter/margin analysis, and guard-band definition.
  • Fault Injection Expertise: Hands-on experience building or executing error-injection and recovery validation campaigns on production silicon.
  • Lab Instrumentation: Fluency with oscilloscopes, protocol analyzers (PCIe/CXL), logic analyzers, BERTs, thermal chambers, controllable power supplies, and JTAG debuggers.
  • High-Speed & System Protocols: Practical, protocol-level understanding of high-speed serial interfaces (PCIe, CXL, or UCIe) and control buses (I2C, SPI, UART, PMBus, SMBus).
  • Power Systems: Solid grasp of system power delivery-including sequencing, PMIC telemetry, DVFS, voltage regulation, and protection trip limits.
  • Data & Tooling: Competency with toolchains (Git, CMake, GCC/Clang, CI pipelines) and statistics/data analysis over test populations.
  • Education: BS or MS in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.
  • AI Tool usage : AI coding and automation tool is must for this role

Compensation

The compensation range shown below represents total target cash compensation and includes both base salary and target bonus. Actual compensation will vary based on factors such as experience, skills, qualifications, job level, and work location.

In addition to cash compensation, this position is eligible for equity in the form of stock options, giving you the opportunity to share in the Company's long-term growth and success.

The pay range for this role is:

180,000 - 216,000 USD per year (US)

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