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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.

How would you assess the validity of the result?

Experiment Validity

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.

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

Input:

<code>big_table</code> table

<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

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

Jabil Salaries by Position

At Jabil we strive to make ANYTHING POSSIBLE and EVERYTHING BETTER. We are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, manufacturing, and supply chain solutions. With over 50 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe. We are seeking a motivated and detail-oriented Data Scientist intern to join our team in developing cutting-edge manufacturing solutions. In this role, you will work closely with our data science and engineering teams to design and implement data-driven solutions for various manufacturing use cases, including anomaly detection, demand forecasting, financial forecasting, and supply chain optimization. You will have the opportunity to apply and expand your knowledge of advanced AIML (Artificial Intelligence and Machine Learning) techniques, including time-series forecasting, regression models, multivariate time series models, neural networks, dynamic linear models, deep learning models, and exponential smoothing techniques. Key Responsibilities Data Analysis & Modeling Analyze complex manufacturing datasets to identify trends, patterns, and anomalies. Develop and implement machine learning models for anomaly detection in manufacturing processes. Build predictive models for demand forecasting, financial forecasting, and supply chain optimization using a variety of statistical and machine learning techniques. Collaborate with senior data scientists to design and refine models, including time-series forecasting, regression models, and deep learning models. Collaboration & Communication Work closely with cross-functional teams, including manufacturing engineers, business SMEs, and IT, to understand business requirements and translate them into data science solutions. Present findings and model results to stakeholders in a clear and concise manner. Contribute to the documentation of data science processes, methodologies, and project outcomes. Continuous Learning & Development Stay up-to-date with the latest developments in data science, AI/ML techniques, and manufacturing technologies. Participate in team meetings, training sessions, and workshops to continuously improve your skills and knowledge. BE AWARE OF FRAUD: When applying for a job at Jabil you will be contacted via correspondence through our official job portal with a jabil.com e-mail address; direct phone call from a member of the Jabil team; or direct e-mail with a jabil.com e-mail address. Jabil does not request payments for interviews or at any other point during the hiring process. Jabil will not ask for your personal identifying information such as a social security number, birth certificate, financial institution, drivers license number or passport information over the phone or via e-mail. If you believe you are a victim of identity theft, contact the Federal Bureau of Investigations internet crime hotline (www.ic3.gov), the Federal Trade Commission identity theft hotline (www.identitytheft.gov) and/or your local police department. Any scam job listings should be reported to whatever website it was posted in. Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status, or any other characteristic protected by law. Accessibility Accommodation If you are a qualified individual with a disability, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Jabil.com/Careers site as a result of your disability. You can request a reasonable accommodation by sending an e-mail to Always_Accessible@Jabil.com or calling 727-803-7988 with the nature of your request and contact information. Please do not direct any other general employment related questions to this e-mail or phone number. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to. #whereyoubelong #AWorldofPossibilities #EarlyCareer

At Jabil we strive to make ANYTHING POSSIBLE and EVERYTHING BETTER. We are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, manufacturing, and supply chain solutions. With over 50 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe. Location: Onsite in St. Petersburg, FL (1st shift) JOB SUMMARYProvides technical leadership and is responsible for determining the direction for the IT architecture, standards, design and implementation approaches for the companys application systems, infrastructure and/or network-based cloud product systems. Creates, evaluates and implements plans and design proposals for high impact IT solutions and their use involving leading edge technologies and methods considering key factors such as their long-term effectiveness (service delivery and cost), practicality, technical limitations and criticality. This is an expert-level role requiring independent action to establish methods and procedures on new and/or special assignments.ESSENTIAL DUTIES AND RESPONSIBILITIESIT Architect Know and understand Jabil business strategy Know and understand Jabil IT strategy & objectives Define the overall solution architecture consistent with Jabils methodology Be responsible for the technical solution by providing leadership for the customer, project manager, domain architects, domain specialists and application engineers to advance and deliver solutions Consult and Inform Enterprise Architects and Senior IT Architects to design and deliver solutions Earn trust of clients and management Assess merits of alternative technical approaches and gain consensus for best approach Learn, follow, promote, and improve recognized methodologies to design and deliver solutions Ensure that the non-functional requirements are satisfied including, but not limited to, security, disaster recovery, availability, and performance Researches technology and industry trends to hone both personal and Jabils competitive edge Through modeling or prototyping, validate solution prior to full implementation Develop expertise in one of the following disciplines: Enterprise Architecture, Business Architecture, Information Architecture, Application Architecture, Technology Infrastructure Architecture Mentor IT professionals Management Practices Develop project plans and influence project organization Apply recognized system sizing methodology Vet change(s) with respect to scope, schedule, cost, risk, etc. Cross train staff to reduce delivery risk Define processes & methods necessary to support delivery/deployment Define management tools to support production environment Continuous Improvement Utilize Lean Six Sigma or other methods to identify & provide guidance on organizational improvement opportunities Perform root cause analysis and remediation actions Contribute to Jabil IP though development and submission of patents Policy & Procedures Comply with IT policy, procedure, and process Adhere to all safety and health rules and regulations associated with this position and as directed by supervisor Comply and follow all procedures within the company security policy Training & Development Define technical job content & qualifications of key roles required to support technical infrastructure Work closely with management to assess and aid the development of staff skill sets Assist management to assess and help resolve staffing knowledge gaps Communication Publish and present to customers, IT leaders and business executives Engage with vendors and third parties as needed Organize verbal and written ideas clearly and use an appropriate business style Ask questions; encourage input from staff Develop peer relationships with Senior IT Architects MANAGEMENT & SUPERVISORY RESPONSIBILITIES Typically reports to management. The purpose of this role is not primarily managerial, and the job is typically NOT directly responsible for managing employees (e.g., hiring/termination and/or pay decisions, performance management). JOB QUALIFICATIONSKNOWLEDGE REQUIREMENTS Understanding of all architectural components and their interrelationships Knowledge of Software Engineering and Architectural Principles and methods Solid presentation and written communication skills Good judgment and the ability to handle stressful situations Team lead experience in application development Knowledge and experience of one or more languages e.g., Java, C#, etc. Knowledge and experience with server-side technologies Knowledge and experience with client-side technologies e.g., Node, Angular Knowledge and experience working in an Agile methodology Knowledge of SOA, including REST, SOAP, API Management, and other integration patterns e.g. ESB, EIP, etc. Knowledge of relational databases and SQL Knowledge of UML or ArchiMate Knowledge of cloud technologies Ability to define problems, collect data, establish facts, and draw valid conclusions EDUCATION & EXPERIENCE REQUIREMENTS Bachelors degree required Post-graduate degree in Computer Science or Management Information Systems expected 10+ or more years of IT implementation experience Or, equivalent combination of education, training, or experience Minimum 4 years of working experience with Amazon Web Services (AWS) with a minimum of 4 implementations (preferred in Enterprise scale environments) Minimum 5 years of working experience as an Enterprise or Technical Architect Experience with complex, cross-cutting design and delivery of AWS Data Architectures that could span the areas of Application & Integration Architecture, Infrastructure Architecture, Development Architecture, Operations Architecture, Security Architecture. Experience in designing and building cloud native data solutions that could cover container services, serverless architectures, high availability and fault-tolerant implementations, database services, data integration & big data processing and storage concepts Ability to work with multiple project teams simultaneously Experience in Agile DevOps delivery and everything-as-code Experience with DataOps for lean data processes. Experience in Decoupled Architecture. Experience with Microservice Architecture. Strategic thinking and getting hands on helping development teams implement technical solutions Ability to articulate data integration patterns and strategies, associated data pipeline design trade-offs, and methods for tracking data lineage Work with other architects to perform overall architecture design, performance tuning/cost management, and implementation of Big Data datalake solution with AWS cloud environments Expert understanding in the native AWS stack like s3, glue, Lake Formation, Hudi, MWAA (Managed Workflow Apache Airflow) , Sagemaker, CloudFormation/Terraform, IAM. Understanding of Cloud Datawarehouses: Snowflake and Redshift. Experience with Data Integration Tools: Talend, Informatica. Good understanding of the capabilities of a Modern Data Platform. Good presentation and communications skills in written and spoken English. Preferred Certifications: Open CA Level 1: Certified TOGAF 9 Foundation ArchiMate 3 Foundation BE AWARE OF FRAUD: When applying for a job at Jabil you will be contacted via correspondence through our official job portal with a jabil.com e-mail address; direct phone call from a member of the Jabil team; or direct e-mail with a jabil.com e-mail address. Jabil does not request payments for interviews or at any other point during the hiring process. Jabil will not ask for your personal identifying information such as a social security number, birth certificate, financial institution, drivers license number or passport information over the phone or via e-mail. If you believe you are a victim of identity theft, contact the Federal Bureau of Investigations internet crime hotline (www.ic3.gov), the Federal Trade Commission identity theft hotline (www.identitytheft.gov) and/or your local police department. Any scam job listings should be reported to whatever website it was posted in. Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status, or any other characteristic protected by law. Accessibility Accommodation If you are a qualified individual with a disability, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Jabil.com/Careers site as a result of your disability. You can request a reasonable accommodation by sending an e-mail to Always_Accessible@Jabil.com or calling 727-803-7988 with the nature of your request and contact information. Please do not direct any other general employment related questions to this e-mail or phone number. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to. #whereyoubelong #AWorldofPossibilities

At Jabil we strive to make ANYTHING POSSIBLE and EVERYTHING BETTER. We are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, manufacturing, and supply chain solutions. With over 50 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe. JOB SUMMARY In this role, you will be working with our robot software engineering team on the software stack for our current and future AMR product line. You will be part of a fast-paced team developing and enhancing ROS-based software applications, implementing complex algorithms, and integrating cutting edge sensor technology. You will work alongside cross-functional teams to design and support our current fleet as well as future generation products. ESSENTIAL DUTIES AND RESPONSIBILITIES Develop or enhance robot algorithms used for navigation (path planning and obstacle avoidance), localization, and mapping Evaluate and integrate new sensor technology into the navigation stack Investigate and test new functional capabilities for current and future generation robots Participate in product development design reviews Provides technical input to help identify and solve project risks that may affect overall project plans and schedules. Work cross-functionally with software and hardware teams within the organization to develop a complete system design Assist in migration from ROS1 to ROS2 EDUCATION & EXPERIENCE REQUIREMENTS Bachelors degree in Computer Science or related engineering field Proficiency in C and Python programming 3 Years of Experience in Robotics and/or Software Engineering Demonstrated experience with Robot Operating System (ROS) and evaluating ROS packages Experience working with Ubuntu or other Debian-based Linux distributions Background working with RGB and 3D sensors Hands on experience with Git version control BE AWARE OF FRAUD: When applying for a job at Jabil you will be contacted via correspondence through our official job portal with a jabil.com e-mail address; direct phone call from a member of the Jabil team; or direct e-mail with a jabil.com e-mail address. Jabil does not request payments for interviews or at any other point during the hiring process. Jabil will not ask for your personal identifying information such as a social security number, birth certificate, financial institution, drivers license number or passport information over the phone or via e-mail. If you believe you are a victim of identity theft, contact the Federal Bureau of Investigations internet crime hotline (www.ic3.gov), the Federal Trade Commission identity theft hotline (www.identitytheft.gov) and/or your local police department. Any scam job listings should be reported to whatever website it was posted in. Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status, or any other characteristic protected by law. Accessibility Accommodation If you are a qualified individual with a disability, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Jabil.com/Careers site as a result of your disability. You can request a reasonable accommodation by sending an e-mail to Always_Accessible@Jabil.com or calling 727-803-7988 with the nature of your request and contact information. Please do not direct any other general employment related questions to this e-mail or phone number. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to. #whereyoubelong #AWorldofPossibilities Equal Opportunity Employer - minorities/females/veterans/individuals with disabilities/sexual orientation/gender identity

Jabil Interview Questions

Jabil Interview Guides

Jabil Interview Questions

Jabil Salaries by Position

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