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Cubic Corporation Interview Questions

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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

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?

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

Cubic Corporation Salaries by Position

Business Unit: Cubic Defense Company Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. Led by our talented teams around the world, Cubic is committed to solving global issues through innovation and service to our customers and partners. We have a top-tier portfolio of businesses, including Cubic Transportation Systems (CTS) and Cubic Defense (CD). Explore more on Cubic.com. Job Details: Job Description Summary Cubic is seeking a talented and motivated C++ Software Engineer to join our dynamic team of geospatial engineers. We work on mission-critical software applications at the enterprise level and at the edge, and we are looking for an engineer who can help us bridge that gap. The ideal candidate will have a dual role, serving not only as a software developer but also as a test engineer, ensuring the quality and reliability of our products. Hybrid position with 3 days on-site weekly. #LI-hybrid Key Responsibilities: * Design, develop, and maintain high-quality C++ software applications. * Write clean, efficient, and well-documented code. * Develop and execute comprehensive test plans and test cases to ensure software quality. * Perform debugging and troubleshooting to identify and resolve issues in a timely manner. * Collaborate with cross-functional teams to define, design, and deliver new features. * Participate in Agile development processes, including sprint planning, stand-ups, and retrospectives. * Utilize JIRA for task management, bug tracking, and project tracking. * Contribute to the continuous improvement of the development and testing processes. * Stay up-to-date with industry trends and best practices in software development and testing. Qualifications: * Bachelor's degree in Computer Science, Software Engineering, or a related field, plus 8 years of related experience. * Proven experience in C++ software development. * Active Secret clearance is required, must be eligible for TS/SCI. * Strong understanding of software development best practices and design patterns. * Experience in developing and executing test plans and test cases. * Familiarity with Agile development methodologies. * Proficiency in using JIRA for task management and bug tracking. * Excellent problem-solving skills and attention to detail. * Strong communication and teamwork skills. * Ability to work independently and manage multiple tasks simultaneously. Preferred Qualifications: * Experience with geospatial technologies or pixel processing and applications. * Experience with programming language in Java. * Experience working cross platform in Windows and Linux * Experience with scripting in Bash * Knowledge of continuous integration and continuous deployment (CI/CD) processes. * Experience with version control systems, such as Git. What We Offer: * Competitive salary and benefits package. * Opportunities for professional growth and development. * Collaborative and innovative work environment. Additional Job Description The Engineering function is responsible for all engineering activities within a firm to ensure that business objectives are met. Includes the creation, development, design, and improvement of products, equipment, facilities, services, standards, and procedures in all engineering fields. Engineering > Software The Software Engineering area is responsible for the development of computer programming systems and applications including the design, coding, testing and deployment of products and solutions to meet firm obligations. Role Knowledge and Application Exhibits advanced wide-ranging experience, using in-depth professional knowledge, acumen, concepts and company objectives to develop, resolve complex models and procedures. Provides solutions to issues in creative and effective ways. Understands the interrelationships of different disciplines. Directs the application of existing principles and guides development of new policies and ideas. Complexity and Problem-Solving Understands and works on complex issues where analysis of situations or data requires an in-depth evaluation of variable factors. Determines methods and procedures on new assignments. Exercises judgment in selecting methods, evaluating, adapting of complex techniques and evaluation criteria for obtaining results. Supervision Work is reviewed upon completion and is consistent with departmental objectives. Collaboration and Interaction Networks with key contacts outside own area of expertise. Adapts style and uses persuasion in delivering messages that relate to the wider firm business. Frequently advises others on complex matters. May be accountable through team for delivery of tactical business targets. Recommended Background and Experience The education/experience information should only be used for requisitions/external postings in accordance with local regulations Typically requires a minimum of 8 years of related experience with a Bachelor's degree; or 6 years and a Master's degree; or a PhD with 3 years experience; or equivalent experience. Some barriers to entry exist at this level, requiring department review. Worker Type: Employee

Business Unit: Cubic Defense Company Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. Led by our talented teams around the world, Cubic is committed to solving global issues through innovation and service to our customers and partners. We have a top-tier portfolio of businesses, including Cubic Transportation Systems (CTS) and Cubic Defense (CD). Explore more on Cubic.com. Job Details: Roles and Responsibilities: <ul><li>Design, develop, and implement software components for our XD products embedded systems (Embedded Linux) using C/C++.</li><li>Utilize deep knowledge and understanding of embedded systems, including hardware-software interactions, low-level programming, and real-time constraints.</li><li>Contribute to defining and designing the system architecture, including software components, interfaces, and system integration.</li><li>Write efficient, maintainable, and well-documented code, and perform debugging and troubleshooting for embedded systems.</li><li>Work closely with cross-functional teams, including developers, and quality assurance teams, to ensure seamless integration and functionality of embedded software.</li><li>Optimize software performance, memory utilization, and power consumption for embedded systems.</li><li>Develop test plans, conduct unit testing, integration testing, and validation of software to ensure reliability and compliance with specifications.</li><li>Create technical documentation, including design specifications, and guidelines for other team members.</li><li>Adhere to industry standards, best practices, and coding guidelines relevant software development.</li><li>Stay updated with the latest trends, technologies, and advancements in embedded systems, software development methodologies, and tools.</li><li>Identify and resolve technical challenges, performance bottlenecks, and issues.</li></ul> Qualifications / Skills <ul><li>Bachelor's degree in Computer Science, Computer Engineering or related technical discipline plus 10 or more years of relevant experience or Master's degree in a relevant field with 8+ years relevant work experience</li><li>Must be able to obtained security clearance</li><li>Comprehensive understanding of embedded systems, including hardware-software interactions, real-time constraints, and low-level programming concepts. Extensive experience in developing applications on Embedded Linux platforms, including kernel space and user space development.</li><li>Understanding of Linux kernel architecture, device drivers, and kernel modules Proficiency in C/C++ programming languages, including strong knowledge of memory management, data structures, and multi-threading.</li><li>Knowledge of embedded system security principles and best practices for securing embedded Linux application</li><li>Understanding of embedded hardware components, microcontrollers, microprocessors, and their interfaces with software.</li><li>Proficient in debugging tools and techniques for embedded systems to identify and resolve software-related issues.</li><li>Familiarity with development tools such as debuggers, emulators, compilers, and IDEs commonly used in embedded systems development</li><li>Understanding of network protocols (TCP/IP, UDP), network configuration, and interfacing embedded systems with network services.</li><li>Ability to design, architect, and develop software solutions for embedded systems, considering constraints and system requirements.</li><li>Proficiency in using version control systems like Git for managing and maintaining embedded software code.</li><li>Competence in creating test plans, performing unit testing, integration testing, and validation of embedded software. Capability to generate comprehensive technical documentation including design documents, APIs, and user manuals.</li></ul> #LI-Hybrid #LI-JM1 Worker Type: Employee

Business Unit: Cubic Defense Company Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. Led by our talented teams around the world, Cubic is committed to solving global issues through innovation and service to our customers and partners. We have a top-tier portfolio of businesses, including Cubic Transportation Systems (CTS) and Cubic Defense (CD). Explore more on Cubic.com. Job Details: Job Description Summary Cubic is seeking a talented and motivated C++ Software Engineer to join our dynamic team of geospatial engineers. We work on mission-critical software applications at the enterprise level and at the edge, and we are looking for an engineer who can help us bridge that gap. The ideal candidate will have a dual role, serving not only as a software developer but also as a test engineer, ensuring the quality and reliability of our products. Hybrid position #LI-hybrid Key Responsibilities: •Design, develop, and maintain high-quality C++ software applications. •Write clean, efficient, and well-documented code. •Develop and execute comprehensive test plans and test cases to ensure software quality. •Perform debugging and troubleshooting to identify and resolve issues in a timely manner. •Collaborate with cross-functional teams to define, design, and deliver new features. •Participate in Agile development processes, including sprint planning, stand-ups, and retrospectives. •Utilize JIRA for task management, bug tracking, and project tracking. •Contribute to the continuous improvement of the development and testing processes. •Stay up-to-date with industry trends and best practices in software development and testing. Qualifications: •Bachelor's degree in Computer Science, Software Engineering, or a related field, plus 12 years of related experience. •Proven experience in C++ software development. •Must be a US citizen, eligible for security clearance. •Strong understanding of software development best practices and design patterns. •Experience in developing and executing test plans and test cases. •Familiarity with Agile development methodologies. •Proficiency in using JIRA for task management and bug tracking. •Excellent problem-solving skills and attention to detail. •Strong communication and teamwork skills. •Ability to work independently and manage multiple tasks simultaneously. Preferred Qualifications: •Experience with geospatial technologies or pixel processing and applications. •Experience with programming language in Java. •Experience working cross platform in Windows and Linux •Experience with scripting in Bash •Knowledge of continuous integration and continuous deployment (CI/CD) processes. •Experience with version control systems, such as Git. What We Offer: •Competitive salary and benefits package. •Opportunities for professional growth and development. •Collaborative and innovative work environment. Additional Job Description The Engineering function is responsible for all engineering activities within a firm to ensure that business objectives are met. Includes the creation, development, design, and improvement of products, equipment, facilities, services, standards, and procedures in all engineering fields. Engineering > Software The Software Engineering area is responsible for the development of computer programming systems and applications including the design, coding, testing and deployment of products and solutions to meet firm obligations. Role Knowledge and Application Exhibits advanced wide-ranging experience, using in-depth professional knowledge, acumen, concepts and company objectives to develop, resolve complex models and procedures. Provides solutions to issues in creative and effective ways. Understands the interrelationships of different disciplines. Directs the application of existing principles and guides development of new policies and ideas. Complexity and Problem-Solving Understands and works on complex issues where analysis of situations or data requires an in-depth evaluation of variable factors. Determines methods and procedures on new assignments. Exercises judgment in selecting methods, evaluating, adapting of complex techniques and evaluation criteria for obtaining results. Supervision Work is reviewed upon completion and is consistent with departmental objectives. Collaboration and Interaction Networks with key contacts outside own area of expertise. Adapts style and uses persuasion in delivering messages that relate to the wider firm business. Frequently advises others on complex matters. May be accountable through team for delivery of tactical business targets. Recommended Background and Experience The education/experience information should only be used for requisitions/external postings in accordance with local regulations Typically requires a minimum of 8 years of related experience with a Bachelor's degree; or 6 years and a Master's degree; or a PhD with 3 years experience; or equivalent experience. Some barriers to entry exist at this level, requiring department review. Worker Type: Employee

Cubic Corporation Interview Questions

Cubic Corporation Interview Guides

Cubic Corporation Interview Questions

Cubic Corporation Salaries by Position

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