PCB Rework Technician (Taiwan)

Etched is building the world’s first AI inference system purpose-built for transformers - delivering over 10x higher performance and dramatically lower cost and latency than a B200. With Etched ASICs, you can build products that would be impossible with GPUs, like real-time video generation models and extremely deep & parallel chain-of-thought reasoning agents. Backed by hundreds of millions from top-tier investors and staffed by leading engineers, Etched is redefining the infrastructure layer for the fastest growing industry in history.

We are seeking a highly skilled PCB Rework Technician with advanced capabilities in large BGA rework (including components >70mm) and complex board-level repairs involving fine-pitch components down to 0402. This role is critical to supporting engineering, validation, and bring-up efforts by performing high-reliability rework on advanced PCBs, including those supporting custom ASICs.

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  Perform precision rework and reballing of large BGAs, including custom ASIC packages exceeding 70mm in size.

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  Operate large-format BGA rework machines specifically designed for custom, high-pin-count ICs and ASICs, ensuring precise alignment and thermal control.

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  Rework SMT and through-hole components down to 0402 packages with excellent quality and consistency.

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  Read and interpret engineering documentation, ECNs, schematics, and BOMs to execute component swaps and modifications.

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  Perform advanced rework techniques such as trace cuts, jumper wire additions, micro-soldering, and circuit rerouting.

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  Inspect reworked assemblies using X-ray or AOI systems to ensure joint integrity and alignment.

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  Maintain detailed rework documentation and communicate findings or design improvement opportunities to engineers.

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  Collaborate with cross-functional teams to troubleshoot issues and support rapid hardware iteration cycles.

• 5+ years of hands-on experience in PCB rework, including:

• Large BGAs (>70mm), QFNs, and fine-pitch ICs
  Operating advanced rework systems for custom ASICs and high-power devices

• Proficient in reworking and inspecting QFN, BGA, and 0402-size components.

• Experience with hot air/IR rework stations, microscopes, soldering irons, and large-area rework platforms.

• Skilled at reading and executing from engineering rework instructions, layout files, and schematics.

• Familiarity with IPC-A-610 and IPC-7711/21 rework and inspection standards.
  Excellent attention to detail, steady manual dexterity, and fine visual inspection capabilities.

• Comfortable working in fast-paced R&D environments with rapidly evolving requirements

Etched believes in the Bitter Lesson. We think most of the progress in the AI field has come from using more FLOPs to train and run models, and the best way to get more FLOPs is to build model-specific hardware. Larger and larger training runs encourage companies to consolidate around fewer model architectures, which creates a market for single-model ASICs.

We are a fully in-person team in San Jose and Taipei, and greatly value engineering skills. We do not have boundaries between engineering and research, and we expect all of our technical staff to contribute to both as needed.