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General Dynamics Land Systems Interview Questions

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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?

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

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

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

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?

General Dynamics Land Systems Salaries by Position

Job Description About the Position: Join a self-motivated team of engineers responsible for the development of cyber security software products for a family of ground combat vehicles. The function of this position is to design and lead the implementation of an advanced, first of its kind cybersecurity application environment. A seasoned software engineer with leadership skills and a passion for cyber security is the ideal candidate for this position. Company Information: General Dynamics is a successful Fortune 100, global aerospace and defense company, with over 90,000 employees world-wide. General Dynamics Land Systems, a business unit of General Dynamics, has a strong foundation of delivering core engineering and manufacturing capabilities to our clients for military vehicles. Our team is focused on continuous process and productivity improvements that reduce product costs, while increasing troop safety and effectiveness. Land Systems continues to work with the US Armed Forces and its Allies to ensure these vehicles remain survivable, relevant, flexible, affordable and capable of addressing a dynamic threat environment. What We Offer: <ul><li>9-80 Work Schedule (This position's standard work schedule is a 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off) </li><li>On-going learning opportunities within a diverse, inclusive and rewarding work environment </li><li>Onsite cafeteria, remodeled fitness center, and outdoor fitness track. </li><li>Healthcare including Medial, Dental, Vision, HSA and Flex Spending with eligibility on your first day. </li><li>401k Match (6%) </li></ul>The following are the key duties and skills required: <ul><li>Architect, design and implement scalable, object oriented software </li><li>Develop software with a variety of software languages </li><li>Perform software requirements analysis </li><li>Develop code to implement software design </li><li>Debug software issues discovered throughout multiple testing phases </li><li>Ensure CI/CD principles are followed throughout the project </li><li>Perform cyber software engineering and development duties to ensure the software product is maintained in accordance with all accreditation and configuration control requirements. </li><li>Work closely with cross functional members of the engineering organization to develop and evaluate interfaces between hardware and software, and operational performance requirements and design of the overall system </li></ul>Position Requirements: <ul><li>Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferably in the area of Computer Science, Computer Engineering or Electrical Engineering from an ABET accredited university (Relevant cyber technical certificates will be considered) </li><li>Minimum of 10 years software engineering experience, 15 years experience preferred. </li><li>Programming experience in high level languages such as C#, Java, C++, Rust or Ada. Openness to learning customer specified languages required. </li><li>Significant experience and familiarity operating in a Linux Environment, including Bash scripting </li><li>Experience with automotive/military embedded systems and board support, including Linux device drivers, bootloaders, or other system programming </li><li>Familiarity with Networking or IPC (TCP, UDP, Queues, Pipes, Domain Sockets, SHM, Packet Capture and Analysis, etc), including socket programming. </li><li>SELinux policy development experience (nice to have, not required) </li><li>Familiarity with user story or ticketing software (Rally, Jira, Asana, etc) </li><li>Familiarity with Microsoft Office software (Word, Excel, PowerPoint, Visio, Project) </li><li> This position will require eligibility to obtain a US security clearance. (Non-US Citizens may not be eligible; interim required before start) </li> <li>The flexibility to work non-duty hours or on weekends as needed by the project (We pay overtime unlike many software companies - but we try to not ever need it) </li><li>Must satisfy Anthropometric Size Restrictions for access to military vehicles and be able to climb on vehicles and pass through hatches </li></ul> GDLS considers factors such as, scope/responsibilities of the position, candidate experience, education/training background, in addition to local market comparable and business considerations when extending an offer . Headquartered in Reston, Virginia, General Dynamics is a global aerospace and defense company offering a broad portfolio of products and services in business aviation; ship construction and repair; land combat vehicles, weapons systems and munitions; and technology products and services. General Dynamics employs more than 100,000 people across 65 countries worldwide and in all 50 U.S. states, more information is available at www.gd.com. General Dynamics Land Systems, is a business unit of General Dynamics, and is an innovative leader of ground combat systems' equipment and software for our clients. Our performance-driven team partners with the U.S. Army, U.S. Marine Corp and other militaries across the Globe to ensure that next generation ground combat vehicles are ready to protect our fighting men and women in uniform. General Dynamics Lands Systems provides a competitive compensation package, site specific flexible work schedules, 401(k) with Company Match; Bonus Eligibility, Employee Development Opportunities, Tuition Reimbursement, On-site Amenities, and comprehensive Medical/Dental/Vision Insurance. At General Dynamics Land Systems, we strive to be champions who drive diversity, equity and inclusion. We are committed to our values and beliefs to provide a healthy and secure working environment that empowers team members to build careers that reward. We are focused on supporting an inclusive company that recognizes the value in creating a dynamic team that is diverse. As an Equal Opportunity Employer, General Dynamics Land Systems ("GDLS") provides all persons with equal opportunity and access to all aspects of employment process, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, marital status, age, disability, status as a protected veteran, or membership in any group protected by federal, state, or local anti-discrimination laws. GDLS also is committed to providing reasonable accommodations to individuals with disabilities and disabled veterans.. If, due to a disability, you need an accommodation to search or apply for an opportunity with GDLS, please call 586-825-4000 or send an e-mail to [email protected] for assistance and let us know the nature of your request and your contact information.

General Dynamics Land Systems Interview Questions

General Dynamics Land Systems Interview Guides

General Dynamics Land Systems Interview Questions

General Dynamics Land Systems Salaries by Position

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