Manufacturing Engineering Supervisor

Diamond Foundry

Bay Area, California

Full Time

Posted August 4, 2026

$120k - $145k

Power Generation

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Job Description

Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every c

Key Responsibilities

Process Ownership & Engineering Handoff: Serve as the receiving owner for new and revised processes, tooling, and workflows transferred from Engineering, qualifying each handoff against defined acceptance criteria — documentation complete, operators trained, tooling verified, run rate demonstrated — before accepting it into steady-state production. Act as the standing escalation point when a process misbehaves and it is not yet clear whether the issue is equipment, material, method, or execution.
Team Leadership & Development: Supervise, schedule, and develop a team of engineering technicians. Set daily priorities against production demand, manage the technician qualification and cross-training matrix, and build depth so that no process area depends on a single individual.
Yield Tracking & Data Ownership: Own yield and scrap reporting for assigned process areas. Track yield by tool, lot, shift, and defect mode; identify statistically meaningful excursions; drive containment and corrective action; and report performance and trends to Operations and Engineering leadership on a defined cadence.
Documentation & Change Control: Own the SOPs, work instructions, travelers, and process specifications for assigned areas. Author and revise documentation to Diamond Foundry's ISO 9001 standards, route changes through the approval matrix, control revision levels on the floor, and ensure training records stay current against the latest revision.
Continuous Improvement & Safe Process Design: Lead structured improvement activity — cycle time reduction, scrap reduction, ergonomic and layout changes, 5S and Lean practices — using data rather than anecdote to select and validate projects. Ensure every new or modified process is reviewed for chemical, thermal, electrical, and mechanical hazards, and that EHS requirements are enforced within the team and on the floor.

Requirements

Technical Foundation: Bachelor's degree in Engineering (Mechanical, Industrial, Manufacturing, Materials, or related) with 3+ years of manufacturing experience, or an equivalent combination of technical training and 6+ years of progressively responsible manufacturing engineering / advanced technician experience. Semiconductor, advanced materials, cleanroom, vacuum, or high-temperature process experience strongly preferred.
Leadership & Ownership: Demonstrated experience leading technicians or a small technical team, whether as a direct supervisor or as a technical lead. Proven track record of taking a process from unstable to controlled and keeping it there in a high-growth environment.
Yield Analysis & Data Literacy: Practical command of yield analysis, defect Pareto, root cause methodology (5-Why, fishbone, 8D), and basic SPC, with the judgment to distinguish signal from noise in production data. Proficiency with Google Workspace (advanced Sheets in particular) and Manufacturing Execution Systems (MES) for transaction integrity, traceability, and metric reporting.
Documentation Discipline: Experience authoring and maintaining SOPs, work instructions, and travelers under a controlled documentation system, with working familiarity with ISO 9001 requirements and change control practice.
Communication: Ability to write a clear work instruction, run a productive shift handoff, present yield performance to senior management, and hold a technical disagreement with an engineer without it becoming an organizational problem.