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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

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?

Ascella technologies Salaries by Position

Ascella Technologies has an opportunity for a Senior Business Analyst with an exceptional record of working with cost-effective, high-performance technology solutions to meet challenging business demands within the financial management space. The Senior Business Analyst will be responsible for performing system analysis and evaluative work in support of financial data management for our federal client to ensure the relevancy, consistency, and integrity of financial systems and their related processes. What you will be doing <ul><li>Supporting financial systems planning and performing analytical work including designing, adapting, modifying, installing, operating, and testing financial accounting systems </li><li>Analyzing, coordinating, and managing requests to add, update, or inactivate financial data elements and descriptions, and change the systems or processes that produce or process financial data</li><li>Facilitating the implementation of system upgrades to meet controls, and policies across finance business lines/organizations through system changes and related documentation </li><li>Analyzing financial data issues and facilitate and document their resolution</li><li>Providing advice to program officials, accountants, budget analysts, and others on the impact of technology upgrades pertinent to financial and business processes</li><li>Working with multiple stakeholder groups to determine priorities and build consensus.</li><li>Briefing management and senior leadership on tasks and analyses, and leading efforts as requested </li></ul>What you need to be considered for this role (required) <ul><li>Bachelor's degree in business administration, information systems, operations, accounting, engineering, or computer science</li><li>5+ years of progressive experience including in-depth knowledge of financial systems (public sector preferred)</li><li>In-depth knowledge of requirements analysis and design</li><li>Experienced with process improvement, troubleshooting, implementation, upgrades, change management, and data analysis</li><li>Excellent cross-functional collaborative and mediation skills to understand the business requirements and translate those business needs into solution requirements</li><li>Excellent client relationship management skills, communication, organization, & ability to prioritize</li><li>U.S. Citizenship required (dual nationals not eligible)</li><li>Position will require a Public Trust background investigation</li></ul>What makes you stand out from the crowd (desired) <ul><li>Strong understanding of financial processes and accounting principles</li><li>Knowledge of Momentum Financials and or Microsoft D365 Finance architecture, modules, and components, specifically Accounts Receivables</li></ul>About Us Ascella Technologies develops and implements innovative technology solutions to deliver business outcomes and help clients manage risk. Our senior consultants and software engineers bring extensive experience in our clients' specialized business domains, applications, and technologies. With this experience, Ascella has helped Federal, State, and local government agencies achieve success in their most critical missions. Founded in 2002, Ascella is continuously growing and looking for team members who can help us continue to deliver value-added technology-based solutions. Ascella's continued success is a reflection of our passion for people. We hire individuals with valuable experiences, and strive to place people in roles that let them fully utilize their talents and flourish. We also maintain an entrepreneurial culture in which each person's contribution makes a visible impact on our company and is recognized accordingly. What makes Ascella employees great <ul><li>Innovative Thinkers:From small suggestions to large goals, employee voices are heard and acknowledged. We encourage employees to come up with creative ideas and give everyone the opportunity to help us define how we do things. You will have the opportunity to solve real business problems and be challenged to come up with innovative solutions.</li><li>Lifelong learners: We value lifelong learners who are excited about professional development and personal growth. At Ascella, employees are part of a company and a culture that encourages continuous improvement of both the organization and our employees. You will work in a collaborative environment with an experienced, highly capable team that learns from each other, and you will be both challenged and supported in your efforts to learn and grow.</li><li>Customer-Centric: Ascella is committed to complete customer satisfaction on every project. Our employees provide our customers with excellent service, proactively coming up with solutions to current and anticipated needs. The customer experience is an integral part of our mission and values, and you will work alongside people who are focused and dedicated to customer satisfaction. </li><li>Open Communicators:Transparency and communication are important to us at Ascella. We have an "open door" policy, and our employees ask questions and share information on a regular basis. We believe in aligning employee work with overall company objectives and being open about our strategic plan and what we are trying to achieve. We encourage regular feedback and appreciate employee input on what's working and what's not so we can initiate discussions about how to improve our processes.</li><li>Inclusive: At Ascella, we encourage and embrace diversity in our workforce. We are committed to being an inclusive organization where all employees feel valued, respected, and engaged. Our employees have an array of talents, ideas, and experiences that help foster creativity and innovation and drive our success.</li></ul>

We are currently seeking an experienced, hands-on Technical Lead Software Engineer to help build our software engineering practice and associated capabilities. What you will be doing You'll be instrumental in leading the vision behind building the Software Engineering practice including: <ul><li>Providing technical direction and architecture recommendations across projects</li><li>Leading engineering teams to build high quality IT solutions</li><li>Developing internal best practices for devops</li><li>Spreading agile development practices and developing proposal win-strategies to grow the business line</li></ul> What you need to be considered for this role (required) <ul><li>Bachelor's Degree or higher in Information Systems, Computer Science, Software Engineering, or related field from an accredited college/university</li><li>7+ years of hands-on experience in managing software development projects (projects for Federal clients preferred)</li><li>Prior experience managing small to medium sized engineering teams (4+) involving multi-discipline engineers (Full Stack, DevOps, Data, etc.) and testing/quality assurance</li><li>Prior experience as a technical lead, providing engineering management and architecture vision across full stack web development technologies (i.e., Java, Angular, Python, Node.js, React, Flask/Django, etc.)</li><li>Excellent communication and technical writing skills; will need to be a key POC with the client</li><li>Expertise in running and managing agile development teams using best-in-class methods</li><li>Demonstrated expertise in working with cloud-based platforms (e.g., AWS, Azure, Google Cloud)</li><li>Demonstrated expertise in the use of metrics and SLAs as successful performance management tools in past projects (e.g., successful uptime)</li><li>Strong verbal and written communication skills</li><li>Ability to effectively and efficiently multitask, prioritize, and carry out projects through to completion with minimal supervision</li><li>Ability to maintain a high level of accuracy and attention to detail</li><li>Demonstrated analytical, reasoning, planning, and problem-solving abilities</li><li>Self-motivated, proactive, and independent thinker with high energy/positive attitude</li><li>U.S. Citizenship required (dual nationals not eligible)</li><li>Position may require a background investigation and/or obtaining a Public Trust clearance</li></ul>What makes you stand out from the crowd (desired) <ul><li>Technical certifications (including PMP, ITIL v3, SAFe)</li><li>Prior experience with SQL</li><li>Prior experience with Java, C++, or C#</li></ul>About Us Ascella Technologies develops and implements innovative technology solutions to deliver business outcomes and help clients manage risk. Our senior consultants and software engineers bring extensive experience in our clients' specialized business domains, applications, and technologies. With this experience, Ascella has helped Federal, State, and local government agencies achieve success in their most critical missions. Founded in 2002, Ascella is continuously growing and looking for team members that can help us continue to deliver value-added technology-based solutions. Ascella's continued success is a reflection of our passion for people. We hire individuals with valuable experiences, and we strive to place people in roles that let them fully utilized their talents and flourish. We also maintain an entrepreneurial culture in which each person's contribution makes a visible impact on our company and is recognized accordingly. What makes Ascella employees great <ul><li>Innovative Thinkers: From small suggestions to large goals, employee voices are heard and acknowledged. We encourage employees to come up with creative ideas and give everyone the opportunity to help us define how we do things. You will have the opportunity to solve real business problems and be challenged to come up with innovative solutions.</li><li>Lifelong learners: We value lifelong learners who are excited about professional development and personal growth. At Ascella, employees are part of a company and a culture that encourages continuous improvement of both the organization and our employees. You will work in a collaborative environment with an experienced, highly capable team that learns from each other, and you will be both challenged and supported in your efforts to learn and grow.</li><li>Customer-Centric: Ascella is committed to complete customer satisfaction on every project. Our employees provide our customers with excellent service, proactively coming up with solutions to current and anticipated needs. The customer experience is an integral part of our mission and values, and you will work alongside people who are focused and dedicated to the commitment of customer satisfaction. </li><li>Open Communicators: Transparency and communication are important to us at Ascella. We have an "open door" policy, and our employees ask questions and share information on a regular basis. We believe in aligning employee work with overall company objectives and being open about our strategic plan and what we are trying to achieve. We encourage regular feedback and appreciate employee input on what's working and what's not so we can initiate discussions about how to improve our processes.</li><li>Inclusive: At Ascella, we encourage and embrace diversity in our workforce. We are committed to being an inclusive organization where all employees feel valued, respected, and engaged. Our employees have an array of talents, ideas, and experiences that help foster creativity and innovation and drive our success.</li></ul> Position: Technical Lead Software Engineer Company: Ascella Technologies Location: Herndon, VA (HQ) - Fully Remote/Hybrid work environment Base Compensation: $150-175K, based on factors such as geographic location and experience Other Compensation: 4% contribution to 401(k), performance bonus, profit-sharing Paid Time Off: 16 days PTO/year, 11 holidays/year Benefits: Medical, Dental, Vision, Life, Disability, 401(k)...and more Position is open until filled, applications accepted on an ongoing basis. Equal Employment Opportunity StatementAscella Technologies is an Affirmative Action/Equal Opportunity Employer. We believe that no one should be discriminated against because of their differences, such as age, disability, ethnicity, gender, gender identity and expression, religion or sexual orientation. We provide equal employment opportunities to all qualified candidates without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status or any other characteristic protected by law. Ascella Technologies is committed to providing veteran employment opportunities to our service men and women.

Ascella technologies Interview Questions

Ascella technologies Interview Guides

Ascella technologies Interview Questions

Ascella technologies Salaries by Position

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