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<p>Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.</p>

<p>How would you assess the validity of the result?</p>


Experiment Validity

<p>You are testing hundreds of hypotheses with many <em>t</em>-tests. What considerations should be made?</p>


<p>What is a key disadvantage of the F-test when compared to multiple t-tests?</p>

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

<p>Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.</p>

<p>Write a query to randomly sample a row from this table.</p>

<p><strong>Input:</strong></p>

<p><code>big_table</code> table</p>

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>


Write a query to randomly sample a row from a big table.

Random SQL Sample

Globalfoundries Salaries by Position

<p>About GlobalFoundries:
GlobalFoundries is a leading full-service semiconductor foundry providing a unique combination of design, development, and fabrication services to some of the world’s most inspired technology companies. With a global manufacturing footprint spanning three continents, GlobalFoundries makes possible the technologies and systems that transform industries and give customers the power to shape their markets. For more information, visit www.gf.com.

Summary of Role:
GlobalFoundries' Research and Development and Product Line Organizations are looking for engineering managers with industry experience in developing high performing CMOS, SiGe and/or wide bandgap device technologies for RF and/or power applications. Managers needed to lead teams of device engineers driving innovative fab based technology development for leading edge solutions for a broad range of applications in Burlington, VT. Successful applicants will become a member of a broader center of excellence in technology development and part of a global development infrastructure driving innovation across dozens of technology platforms. Engineers with a Masters or Ph. D. degree and over 5 years of industry R&D experience in semiconductor devices are strongly preferred.

Essential Responsibilities:
Directly manage small team of semiconductor device engineers

Use expertise to provide feedback to technology competitive analysis, targets, and development plans.

Coach device engineers in the elements of R&D, including literature search, competitive analysis, device development strategy, TCAD support, split planning, analysis and effective decision making.

Work with other teams, including characterization, TCAD, integration, and unit process development to ensure both seamless teamwork and the effectiveness of the device team in driving toward technology development goals, including overall technology qualification.

Provide hands-on technical leadership, leading essential technology development sub-projects and critical device projects and demonstrating by example when appropriate.

Contribute to support of an organized development infrastructure of standardized automated reporting, prompt analysis and decision making, and documentation of learning, and transfer of knowledge.

Other Responsibilities:
Perform all activities in a safe and responsible manner and support all Environmental, Health, Safety & Security requirements and programs.

Required Qualifications:
Education - Ph.D. with 5 years or master’s degree with ~7 years of working experience in relevant field. Degree must be in Electrical Engineering, Solid State Physics, or other relevant engineering physical science discipline.

Background in device physics, modeling, and characterization.

Industry experience in developing CMOS, SiGe and/or wide bandgap devices

Experience in TCAD simulation.

Experience in leading a device or process development project.

Experience in leading teams.

Strong data analysis skills – experience with data analysis tools and languages.

Excellent interpersonal skills, both oral and written

Language Fluency - English (Written & Verbal)

Ability to relocate to Essex Junction, VT (this is not a remote position)

Preferred Qualifications:
Device and material systems experience in one or more of the following: CMOS, SiGe, BJTs, or wide bandgap devices.

Semiconductor processing experience and understanding.

Experience with Cadence or any other layout and simulation tool.

Strong written, verbal communication, presentation, and technical writing skills.

Experience leading an interdisciplinary team.

Self-starter and highly motivated to succeed in a fast-paced and challenging professional environment.

Strong interpersonal skills and ability to work effectively within a global cross functional team environment.

Project management skills - i.e., the ability to innovate and execute solutions that matter; the ability to navigate ambiguity.

Strong planning & organizational skills.

Expected Salary Range
$104,000.00 - $198,000.00 The exact Salary will be determined based on qualifications, experience and location.
If you need a reasonable accommodation for any part of the employment process, please contact us by email at usaccommodations@gf.com and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this email address.

An offer with GlobalFoundries is conditioned upon the successful completion of pre-employment conditions, as applicable, and subject to applicable laws and regulations.

GlobalFoundries is fully committed to equal opportunity in the workplace and believes that cultural diversity within the company enhances its business potential. GlobalFoundries goal of excellence in business necessitates the attraction and retention of highly qualified people. Artificial barriers and stereotypic biases detract from this objective and may be illegally discriminatory.

All policies and processes which pertain to employees including recruitment, selection, training, utilization, promotion, compensation, benefits, extracurricular programs, and termination are created and implemented without regard to age, ethnicity, ancestry, color, marital status, medical condition, mental or physical disability, national origin, race, religion, political and/or third-party affiliation, sex, sexual orientation, gender identity or expression, veteran status, or any other characteristic or category specified by local, state or federal law

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