Senior Test Engineer

Role Overview

Mythic is building next-generation AI silicon that demands exceptional quality, performance, and manufacturability from first silicon through production ramp. We are looking for a senior, hands-on Test Engineer to own and drive production test strategy across the full silicon lifecycle - from bring-up and characterization through Wafer Sort, Final Package Test, and into high-volume manufacturing.

This is not a maintenance role. This is a build role.

We want someone who can take ambitious product goals, incomplete information, and fast-moving silicon programs and turn them into robust, scalable test solutions that protect quality, accelerate yield learning, and enable production ramp. You will play a critical role in defining how Mythic ships reliable silicon.

This role is ideal for someone who thrives in high-ownership environments and wants to work across design, DFT, product, reliability, and manufacturing to build the company's production test foundation the right way from the ground up. You should be equally comfortable setting strategy and getting deep into hands-on test development, debug, data analysis, and manufacturing execution.

What you'll own

Drive Mythic's end-to-end production test strategy across Wafer Sort, Final Package Test, characterization, screening, and volume ramp

Develop and optimize production test programs for new silicon products

Build test methodology, coverage strategy, release criteria, and screening philosophy from the ground up

Partner closely with design, DFT, product engineering, reliability, and manufacturing teams to ensure production readiness

Support silicon bring-up, characterization, correlation, guardbanding, and test transfer into manufacturing

Analyze test data to identify yield issues, systematic failures, escapes, and opportunities to improve quality and efficiency

Work directly with OSATs, foundries, ATE vendors, and internal teams to deploy and sustain high-quality test flows

Make smart tradeoffs across test coverage, cost, throughput, quality, and ramp velocity

Improve infrastructure, automation, and analytics for production test and yield learning

Lead from the front as an individual contributor who is comfortable getting deep into code, hardware, data, and debug

What we're looking for

Significant experience in semiconductor test engineering, product engineering, or production test development

Strong hands-on ownership of Wafer Sort and Final Package Test

Experience developing, debugging, and releasing test programs on ATE platforms in real production environments

Deep understanding of manufacturing test flows, device screening, test coverage, guardbanding, and outgoing quality

Experience supporting silicon bring-up, characterization, yield ramp, and production release

Strong debug instincts and data fluency; you know how to find signal in noisy manufacturing data

Experience working cross-functionally with design, DFT, product, reliability, and operations teams

Comfortable operating with urgency, ambiguity, and a high bar for execution

Builder mindset: you do not wait for perfect structure - you create it

Preferred Qualifications

Experience with AI, accelerator, high-performance compute, or mixed-signal silicon

Familiarity with Advantest, Teradyne, or similar ATE platforms

Experience with probe cards, load boards, hardware interfaces, and test hardware debug

Knowledge of DFT structures such as scan, MBIST, boundary scan, or related production test features

Experience working with OSATs and external manufacturing partners

Strong scripting, automation, and test-data analysis skills

Experience improving test time, yield, correlation, and manufacturing efficiency at ramp

What success looks like

Wafer Sort and Final Test flows are robust, scalable, and ready for production

New products move from silicon bring-up to manufacturing with strong coverage and fewer surprises

Yield issues are identified early and driven to root cause fast

Test programs are stable, efficient, and built for scale

Mythic ships higher-quality silicon with better visibility, faster learning cycles, and stronger production confidence

Why this role matters

At Mythic, test is not the final checkbox. It is a core part of how we build reliable products and scale advanced silicon into the real world.This role sits at the center of that mission.

You will influence product quality, manufacturing readiness, ramp execution, and long-term scalability. You will work on meaningful technical problems with direct impact on whether great silicon becomes a great product. If you want a role where you can own critical decisions, build systems that matter, and help define the future of AI hardware, we should talk.

Why Mythic

Work on ambitious AI hardware with real technical depth

Own critical test strategy at a company where your work will directly shape production outcomes

Join a highly collaborative team solving hard silicon and system challenges

Move fast, make decisions, and build from first principles

Have outsized impact in a role with real scope and visibility

Equal Opportunity

Mythic is committed to building an inclusive team and encourages candidates from all backgrounds to apply.