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T-rex corporation Interview Questions

<p>t-rex corporation (http://www.trexcorporation.com) is a hubzone certified leading business in the federal information technology sector delivering program management and information technology solutions every day to satisfied clients. we partner with our clients to meet the mission and overcome challenges and our staff are well qualified engineers, specialists and managers experienced at meeting and exceeding our commitments.</p>
<p>at the heart of t-rex, we are problem solvers offering innovation, quality and world class service in the following areas:</p>
<ul>
<li>program management and performance excellence</li>
<li>full lifecycle cots/application engineering/development/test</li>
<li>soa architectures</li>
<li>agile methodologies</li>
<li>end user support (help/service desk, deskside support)</li>
<li>document conversion, indexing and data capture services</li>
</ul>
<p>we are engaged critical mission support numerous federal agencies including the department of commerce, us census bureau, department of veteran affairs and at departmen</p>

t-rex corporation (http://www.trexcorporation.com) is a hubzone certified leading business in the federal information technology sector delivering program management and information technology solutions every day to satisfied clients. we partner with our clients to meet the mission and overcome challenges and our staff are well qualified engineers, specialists and managers experienced at meeting and exceeding our commitments.

 at the heart of t-rex, we are problem solvers offering innovation, quality and world class service in the following areas:

 - program management and performance excellence
 - full lifecycle cots/application engineering/development/test
 - soa architectures
 - agile methodologies
 - end user support (help/service desk, deskside support)
 - document conversion, indexing and data capture services

 we are engaged critical mission support numerous federal agencies including the department of commerce, us census bureau, department of veteran affairs and at departmen

Overview

T-rex corporation Interview Guides

<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

<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?

T-rex corporation Salaries by Position

<h3>Job Description</h3><div>Job Description<div><p>T-Rex Solutions is looking for an Analyst to support the IRS IT Applications Development (AD) Data Delivery Services (DDS) organization's data modernization efforts, transitioning on-prem data and business intelligence (BI) processing to a new cloud-based platform called the Enterprise Data Platform (EDP). This project will involve analyzing the current BI portfolio and creating a release plan that establishes what legacy functionality needs to be reengineered, rebuilt, and incrementally operationalized onto the new platform, and completing a Proof of Concept to determine the solution approach for migrating and refactoring their data.</p><p>You will help support data modernization activities and be responsible for a variety of business and functional tasks including, but not limited to, requirements gathering standards, guidelines, and analyzing phase methodology to meet the client's overall objectives. You will also assist in providing client meeting and deliverable support as required, define and document solution requirements, support technical teams, and help identify relevant delivery risks.</p><p><strong>Responsibilities:</strong></p><ul><li>Support efforts to assess current state, identify customer requirements, and define the future state and/or business solution.</li><li>Develop requirements based on input from project stakeholders including Assembler developers and business tax consultants.</li><li>Create use cases from requirements. Determine test methods for each use case.</li><li>Research, gather and synthesize information from disparate internal information repositories into Plain Language.</li><li>Maintain requirements in requirements tool.</li><li>Collaborate with project managers and cross-functional teams.</li><li>Participate in scrum planning and daily reporting.</li><li>Document service levels and performance requirements to ensure they meet established quality standards.</li></ul><p><strong>Requirements:</strong></p><ul><li>Bachelor's Degree in relevant field and 3+ years of experience working with clients and client deliverables on tight deadlines</li><li>Active IRS MBI clearance and current GFE preferred, non-cleared candidates will still be considered.</li><li>Demonstrated ability to seek out information (proactive learning).</li><li>Resourcefulness and ability to devise creative solutions to problems.</li><li>Experience with use case development for event-driven applications.</li><li>Experience testing and mapping various business processes and protocols.</li><li>Experience with the IBM mainframe, Linux and Windows servers, and cloud deployments.</li><li>Experience with QSAM file structures.</li><li>Experience with noSQL and SQL databases.</li><li>Experience actively using Microsoft Word, PowerPoint, Excel, Teams, and SharePoint. Experience using Microsoft Visio (or comparable). </li></ul><p><strong> </strong><strong>Professional skills:</strong></p><ul><li>Excellent oral and written communication skills with client stakeholders at all organizational and technical levels </li><li>Experience in Agile methodologies such as Scrum or Kanban and familiarity with Agile project management tools such as JIRA or Confluence</li><li>Excellent time management</li><li>Ability to contribute to a high-performing, motivated workgroup by applying interpersonal and collaboration skills to achieve project goals.</li><li>Experience with Microsoft products (Word, PowerPoint, Excel, SharePoint)</li></ul><p><strong>T-Rex Overview</strong></p><p>Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.</p><p>T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.</p><p>T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.</p><p>In compliance with pay transparency guidelines, the annual base salary range for this position is $105,000 - $110,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, <span class="long-word">education/training,</span> key skills, internal peer equity, as well as market and business considerations when extending an offer.</p><p>T-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits. </p><p>#ZR</p></div>Company Description<div>Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.<br><br>T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.<br><br>T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.<br><br>As part of our overall strategy and commitment to maintaining a safe and healthy workplace, and in accordance with applicable regulations, employees of T-Rex must be fully vaccinated against COVID-19 if required by customer or client policies or federal mandates as a condition of employment, subject to reasonable accommodation and other requirements under applicable federal, state, and local law. If required by the customer, the selected individual will have to submit documentation of proof of vaccination before starting employment with T-Rex or have an approved exemption prior to the start of employment.</div></div><h3>Company Description</h3><div>Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.\r\n\r\nT-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.\r\n\r\nT-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.\r\n\r\nAs part of our overall strategy and commitment to maintaining a safe and healthy workplace, and in accordance with applicable regulations, employees of T-Rex must be fully vaccinated against COVID-19 if required by customer or client policies or federal mandates as a condition of employment, subject to reasonable accommodation and other requirements under applicable federal, state, and local law. If required by the customer, the selected individual will have to submit documentation of proof of vaccination before starting employment with T-Rex or have an approved exemption prior to the start of employment.</div>

<h3>Job Description</h3><div>Job Description<div><p>T-Rex is seeking a Senior Business Analyst to support the support activities related to the current and future state baselining of DHMS programs in terms of scope, activities, relevant processes, and stakeholders. The candidate will work closely with senior T-Rex BAs, System Engineers and Project Managers.</p><p>The Defense Healthcare Management System is transforming the delivery of healthcare and advance data sharing through a modernized electronic health record for service members, veterans and their families. The Workforce 3.0 program within DHMS is a managed solution that leverages innovative new processes, methods, and best-in-class methodologies from the private sector to enable the entire PEO DHMS workforce to deliver world-class technology. The DHMS systems provide important health IT capabilities to 9.6 million active duty military, their families, and their beneficiaries. This program supports management of technical deployments, field deployments, and technology training/adoption. Lets talk about how you can help make a difference!</p><p><strong>Responsibilities:</strong></p><ul><li>Assist the product owner with backlog management</li><li>Ensure story completeness and offers recommendations on story format and content</li><li>Assist product owner with meeting coordination and day-to-day team operation</li><li>Ensure requirements traceability </li><li>Conduct DHMS stakeholder interviews to understand current state processes, ways of working, and overall operational execution</li><li>Facilitate product discovery sessions with the product managers/product owners and business end users to gather business requirements </li><li>Analyze and document business requirements in the form of experiences, epics, stories and acceptance criteria for both business and technical audiences</li><li>Collaborate with Product Leads and Business Analysts to understand and define product dependences, interfaces, and risks</li><li>Define & document acceptance criteria for user stories in a given-when-then format</li><li>Produce meeting minutes and summarize key decisions points at conclusion of discussions</li><li>Collaborate with Product Management and Agile development teams to communicate detailed product requirements</li><li>Create business process workflows and any other artifacts required as needed</li><li>Participate in relevant workshops and discussions with DHMS stakeholders</li></ul><p><strong>Requirements:</strong></p><ul><li>5+ years of professional experience</li><li>Experience conducting stakeholder interviews, participating and leading workshops, and supporting and executing customer data calls</li><li>Experience developing process documentation and process improvement documentation</li><li>Ability to work independently as well as part of a larger team</li><li>Strong written and verbal communication skills</li></ul><p><strong>Desired Skills:</strong></p><ul><li>Bachelor's Degree preferred in Information Technology, Computer Science, Engineering or another similar discipline</li><li>Experience with Agile methodologies</li><li>Experience with JIRA</li><li>Experience with data analysis or data engineering</li></ul><p></p><p><strong>T-Rex Overview</strong></p><p>Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.</p><p>T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.</p><p>T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.</p><p>As part of our overall strategy and commitment to maintaining a safe and healthy workplace, and in accordance with applicable regulations, employees of T-Rex must be fully vaccinated against COVID-19 if required by customer or client policies or federal mandates as a condition of employment, subject to reasonable accommodation and other requirements under applicable federal, state, and local law. If required by the customer, the selected individual will have to submit documentation of proof of vaccination before starting employment with T-Rex or have an approved exemption prior to the start of employment.</p><p>In compliance with pay transparency guidelines, the annual base salary range for this position is $100,000 - $115,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, <span class="long-word">education/training,</span> key skills, internal peer equity, as well as market and business considerations when extending an offer.</p></div></div>

T-rex corporation Interview Questions

Overview

T-rex corporation Interview Guides

T-rex corporation Interview Questions

T-rex corporation Salaries by Position

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