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Interactive Brokers Interview Questions

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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

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

Interactive Brokers Salaries by Position

Join the INTERACTIVE BROKERS Team! Interactive Brokers has been at the forefront of the Fintech space for over 40 years and we pride ourselves on being a technology company. We continue to challenge the status quo and push boundaries to offer the best trading platform with the most sophisticated features all for the lowest cost to our customers. You will be part of: <ul><li>All phases of a multi-tier software development cycle (GUIs, databases, mid-tier, batch applications) with an emphasis on the server-side</li><li>Debugging, fixing and maintaining existing systems</li></ul> You will need to have: <ul><li>Bachelor's or Master's in Computer Science, or related degree</li><li>5-10 years of Java experience</li><li>Strong knowledge of object-oriented concepts & multi-tier applications</li><li>Strong understanding of DBMS concepts (Oracle platform is a plus)</li><li>Hands on expertise in server-side programming in Java/C++</li><li>J2EE experience is a plus</li></ul> What we'd also love to see: <ul><li>An ambitious and diligent individual</li><li>An Innovative mindset with a drive to improve upon existing systems</li><li>A desire to solve complex problems</li></ul> Company Perks: <ul><li>Competitive salary, annual performance-based bonuses, and annual stock grants</li><li>Daily company lunch allowance provided.</li><li>401k with company match</li><li>Excellent medical, dental, and vision benefits</li><li>Newly renovated offices with multi-monitor setups</li><li>Team outings and dinners</li><li>Education reimbursement and learning opportunities</li></ul> Company Overview Interactive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment. IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments. Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

Join the INTERACTIVE BROKERS Team! This position requires you to be in the office 5 days a week. Interactive Brokers Group has consistently been at the forefront of trading innovation, starting with the invention of the first floor-based handheld computer in 1983 and we pride ourselves on being primarily a technology company. We continue to challenge the status quo and push boundaries to offer the best trading platform with the most sophisticated features all for the lowest cost to our customers. Software development is the lifeblood of our firm, and it shows in our stellar brokerage platform. Our focus is on providing cutting-edge trading technology to keep our clients one step ahead. We offer award-winning desktop, mobile and web applications which provide our clients with the tools they need to be successful. Our Trading Platforms group is looking for Product Manager with good knowledge and ability to communicate effectively, understanding problems and explain their solution. The position is well-suited for an organized individual who can meet deadlines, follow written procedures, and collaborate for improvements and be a team player. We are looking for a high-energy, self-starting individual. You will make an immediate impact, work with the latest technology, watch your projects quickly come to completion and enjoy a competitive compensation package **For this position, the company is not sponsoring applicants for work visas now or in future** You will be responsible for: <ul><li>Defining detailed functional specifications for new features based on existing UI/UX paradigms</li><li>Maintaining executive summaries on the progress and milestones of multiple projects simultaneously</li><li>Managing day-to-day operational aspects of projects, including communication of client needs to the team.</li><li>Managing multiple projects simultaneously and understand project priorities in the context of the group</li><li>Assisting with functional reviews, testing and validation during the software development lifecycle</li><li>Becoming an expert with IB's trading software and award-winning brokerage platform</li><li>Working with product and engineering teams to get a deep understanding of the services and infrastructure that power our global trading systems</li></ul> You are someone who has: <ul><li>B.S. or higher in Engineering, Computer Science, Business Management, Finance</li><li>A Minimum 3 year experience in product/technical management or consulting with focus on product development and delivery</li><li>Experience managing projects through full lifecycle from ideation and inception to implementation and delivery/release.</li><li>Knowledge of or experience in the financial services sector</li><li>Highly organized and self-directed with a strong ability to prioritize and multi-task</li><li>Excellent verbal and written communication skills</li><li>Excellent presentation and interpersonal skills</li><li>Detail-oriented, proactive, and enthusiastic</li></ul> Nice to Have's : <ul><li>Knowledge of or experience with UI and UX design</li><li>Familiar with key concepts related to trading and financial products.</li><li>Excellent problem-solving, organizational, and analytical skills, with the ability to evolve product strategy based on research, data and industry trends.</li></ul> To be successful in this position you will have: <ul><li>Superb analytical and problem-solving skills.</li><li>Excellent collaboration and communication skills.</li><li>Ability to thrive in a fast-paced, rapid growth environment.</li><li>Have a startup personality and enjoy working as part of a team.</li><li>Great organizational and time management skills.</li></ul>Company Benefits & Perks <ul><li>Competitive salary, annual performance-based bonus and stock grant</li><li>Retirement plan (401K) with competitive company match</li><li>Excellent health and welfare benefits including medical, dental, and vision benefits</li><li>Wellness screenings and assessments, health coaches and counseling services through Employee Assistance Program (EAP)</li><li>Paid time off and a generous parental leave policy</li><li>Daily company lunch allowance provided and a fully stocked kitchen with healthy options for breakfast and snack</li><li>Corporate events including team outings, dinners, volunteer activities and company sports teams</li><li>Education reimbursement and learning opportunities</li><li>Modern offices with multi-monitor setups</li></ul> Company Overview Interactive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment. IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments. Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

About INTERACTIVE BROKERS! This is a hybrid role (three days in the office/two days remote). Interactive Brokers Group has been consistently at the forefront of trading innovation, starting with the invention of the first floor-based handheld computer in 1983. We pride ourselves on being primarily a technology company and challenging the status quo. We push boundaries to offer our clients the best trading platform with the most sophisticated features at the lowest cost. Software development is the lifeblood of our firm, and it shows in our stellar brokerage platform. Interactive Brokers is regularly recognized as a leader in the financial services industry. About Your Team:A Telemetry/Data/AI team that works closely with product owners and development teams. As part of this team, you will build or use tools to collect and analyze data that will help understand the business and assist with decision making. We are looking for a Data Scientist Engineer to ingest and analyze large amounts of raw information that will help improve our company and help with decision-making. We will rely on you to build data products to extract valuable business insights. In this role, you will be responsible for the entire data analysis lifecycle, from transforming raw data to creating insightful visualizations and reports. You will wrangle, cleanse, and transform large datasets to prepare them for AI consumption. You will also develop and implement data pipelines to automate data ingestion, processing, and delivery for AI models. Integrate with data platforms and tools to ensure efficient and scalable data processing for AI initiatives. You will also play a key role in developing and maintaining the data infrastructure that supports our analytics efforts. In this role, you should be highly analytical and passionate about analysis, math, and statistics. Critical thinking and problem-solving skills are essential for interpreting data. Experience with AI, machine learning, and research is a big plus. Your goal will help our company analyze trends to make better decisions. Your Responsibilities Within IBKR: <ul><li>Design, develop, and implement data pipelines to collect, clean, and transform data from various sources</li><li>Identify valuable data sources and automate collection processes</li><li>Undertake preprocessing of structured and unstructured data</li><li>Assist with data labeling and tagging</li><li>Analyze large amounts of information to discover trends and patterns</li><li>Present information using data visualization techniques</li><li>Propose solutions and strategies to business challenges</li><li>Collaborate with engineering and product development teams</li><li>Perform feature engineering for AI applications</li></ul> What Skills Are Required: <ul><li>BS/ MS /PhD in Computer Science, Engineering, or relevant field; graduate degree in Data Science or other quantitative field is preferred</li><li>5 + years of experience as a Data Scientist or Data Analyst</li><li>Experience in data mining</li><li>Understanding of machine learning and operations research</li><li>Knowledge of SQL and Python; Python ML frameworks familiarity is a plus; familiarity with Java is a big plus</li><li>Experience using ELK Stack (Elasticsearch, Logstash, Kibana)</li><li>Experience using business intelligence tools (e.g., Tableau) and data frameworks (e.g., Hadoop)</li><li>Experience with AI/ML-based solutions for data analysis is a big plus</li><li>Analytical mind and business acumen</li><li>Strong math skills (e.g. statistics, algebra)</li></ul> To Be Successful in This Position, You Will Have the Following: <ul><li>Self-motivated and able to handle tasks with minimal supervision.</li><li>Superb analytical and problem-solving skills.</li><li>Excellent collaboration and communication (Verbal and written) skills.</li><li>An innovative mindset with a drive to improve upon existing systems.</li><li>Outstanding organizational and time management skills.</li></ul>Company Benefits & Perks <ul><li>Competitive salary, annual performance-based bonus and stock grant</li><li>Retirement plan 401(k) with competitive company match</li><li>Excellent health and welfare benefits, including medical, dental, and vision benefits</li><li>Wellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)</li><li>Paid time off and a generous parental leave policy</li><li>Daily company lunch allowance provided, and a fully stocked kitchen with healthy options for breakfast and snack</li><li>Corporate events including team outings, dinners, volunteer activities and company sports teams</li><li>Education reimbursement and learning opportunities</li><li>Modern offices with multi-monitor setups</li></ul> Company Overview Interactive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment. IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments. Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

Join the INTERACTIVE BROKERS Team!This position requires you to be in the office 5 days a week.Interactive Brokers Group has consistently been at the forefront of trading innovation, starting with the invention of the first floor-based handheld computer in 1983 and we pride ourselves on being primarily a technology company. We continue to challenge the status quo and push boundaries to offer the best trading platform with the most sophisticated features all for the lowest cost to our customers.Software development is the lifeblood of our firm, and it shows in our stellar brokerage platform. Our focus is on providing cutting-edge trading technology to keep our clients one step ahead. We offer award-winning desktop, mobile and web applications which provide our clients with the tools they need to be successful.Our Trading Platforms group is looking for Product Manager with good knowledge and ability to communicate effectively, understanding problems and explain their solution. The position is well-suited for an organized individual who can meet deadlines, follow written procedures, and collaborate for improvements and be a team player. We are looking for a high-energy, self-starting individual. You will make an immediate impact, work with the latest technology, watch your projects quickly come to completion and enjoy a competitive compensation packageFor this position, the company is not sponsoring applicants for work visas now or in futureYou will be responsible for:* Defining detailed functional specifications for new features based on existing UI/UX paradigms* Maintaining executive summaries on the progress and milestones of multiple projects simultaneously* Managing day-to-day operational aspects of projects, including communication of client needs to the team.* Managing multiple projects simultaneously and understand project priorities in the context of the group* Assisting with functional reviews, testing and validation during the software development lifecycle* Becoming an expert with IB's trading software and award-winning brokerage platform* Working with product and engineering teams to get a deep understanding of the services and infrastructure that power our global trading systemsYou are someone who has:* B.S. or higher in Engineering, Computer Science, Business Management, Finance* A Minimum 3 year experience in product/technical management or consulting with focus on product development and delivery* Experience managing projects through full lifecycle from ideation and inception to implementation and delivery/release.* Knowledge of or experience in the financial services sector* Highly organized and self-directed with a strong ability to prioritize and multi-task* Excellent verbal and written communication skills* Excellent presentation and interpersonal skills* Detail-oriented, proactive, and enthusiasticNice to Have's :* Knowledge of or experience with UI and UX design* Familiar with key concepts related to trading and financial products.* Excellent problem-solving, organizational, and analytical skills, with the ability to evolve product strategy based on research, data and industry trends.To be successful in this position you will have:* Superb analytical and problem-solving skills.* Excellent collaboration and communication skills.* Ability to thrive in a fast-paced, rapid growth environment.* Have a startup personality and enjoy working as part of a team.* Great organizational and time management skills.Company Benefits & Perks* Competitive salary, annual performance-based bonus and stock grant* Retirement plan (401K) with competitive company match* Excellent health and welfare benefits including medical, dental, and vision benefits* Wellness screenings and assessments, health coaches and counseling services through Employee Assistance Program (EAP)* Paid time off and a generous parental leave policy* Daily company lunch allowance provided and a fully stocked kitchen with healthy options for breakfast and snack* Corporate events including team outings, dinners, volunteer activities and company sports teams* Education reimbursement and learning opportunities* Modern offices with multi-monitor setupsCompany OverviewInteractive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment.IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments.Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

Interactive Brokers Group has consistently been at the forefront of trading innovation, starting with the invention of the first floor-based handheld computer in 1983 and we pride ourselves on being primarily a technology company. We continue to challenge the status quo and push boundaries to offer the best trading platform with the most sophisticated features all for the lowest cost to our customers. Software development is the lifeblood of our firm, and it shows in our stellar brokerage platform. Our focus is on providing cutting-edge trading technology to keep our clients one step ahead. We offer award-winning desktop, mobile and web applications which provide our clients with the tools they need to be successful. Our Trading Platforms group is looking for Product Manager with good knowledge and ability to communicate effectively, understanding problems and explain their solution. The position is well-suited for an organized individual who can meet deadlines, follow written procedures, and collaborate for improvements and be a team player. We are looking for a high-energy, self-starting individual. You will make an immediate impact, work with the latest technology, watch your projects quickly come to completion and enjoy a competitive compensation package For this position, the company is not sponsoring applicants for work visas now or in future You will be responsible for: • Defining detailed functional specifications for new features based on existing UI/UX paradigms • Maintaining executive summaries on the progress and milestones of multiple projects simultaneously • Managing day-to-day operational aspects of projects, including communication of client needs to the team. • Managing multiple projects simultaneously and understand project priorities in the context of the group • Assisting with functional reviews, testing and validation during the software development lifecycle • Becoming an expert with IBs trading software and award-winning brokerage platform • Working with product and engineering teams to get a deep understanding of the services and infrastructure that power our global trading systems You are someone who has: • B.S. or higher in Engineering, Computer Science, Business Management, Finance • A Minimum 3 year experience in product/technical management or consulting with focus on product development and delivery • Experience managing projects through full lifecycle from ideation and inception to implementation and delivery/release. • Knowledge of or experience in the financial services sector • Highly organized and self-directed with a strong ability to prioritize and multi-task • Excellent verbal and written communication skills • Excellent presentation and interpersonal skills • Detail-oriented, proactive, and enthusiastic Nice to Have’s : • Knowledge of or experience with UI and UX design • Familiar with key concepts related to trading and financial products. • Excellent problem-solving, organizational, and analytical skills, with the ability to evolve product strategy based on research, data and industry trends. To be successful in this position you will have: • Superb analytical and problem-solving skills. • Excellent collaboration and communication skills. • Ability to thrive in a fast-paced, rapid growth environment. • Have a startup personality and enjoy working as part of a team. • Great organizational and time management skills. Company Benefits & Perks • Competitive salary, annual performance-based bonus and stock grant • Retirement plan (401K) with competitive company match • Excellent health and welfare benefits including medical, dental, and vision benefits • Wellness screenings and assessments, health coaches and counseling services through Employee Assistance Program (EAP) • Paid time off and a generous parental leave policy • Daily company lunch allowance provided and a fully stocked kitchen with healthy options for breakfast and snack • Corporate events including team outings, dinners, volunteer activities and company sports teams • Education reimbursement and learning opportunities • Modern offices with multi-monitor setups

About INTERACTIVE BROKERS!This is a hybrid role (three days in the office/two days remote).Interactive Brokers Group has been consistently at the forefront of trading innovation, starting with the invention of the first floor-based handheld computer in 1983. We pride ourselves on being primarily a technology company and challenging the status quo. We push boundaries to offer our clients the best trading platform with the most sophisticated features at the lowest cost. Software development is the lifeblood of our firm, and it shows in our stellar brokerage platform. Interactive Brokers is regularly recognized as a leader in the financial services industry.As part of our expanding Enterprise Risk Management organization, Interactive Brokers is seeking to recruit an Operational Risk Analyst for IBL (based in Greenwich).The role will support the execution of the operational risk management framework in the US and, as required, for Group affiliates. Responsibilities include executing the Risk & Control Self-Assessment, Event Analysis and Remediation, developing and monitoring Key Risk Indicators (KRIs), Scenario Analysis and monitoring the firm's operational risk profile against its risk appetite.Responsibilities* Support the Enterprise Risk Manager in executing all aspects of the Operational Risk Management Framework across all Group entities.* Partner with business risk owners to execute the RCSA program, ensuring results are documented appropriately, actionable and defensible to third-party review.* Conduct targeted risk assessments on areas of highest residual risk to identify opportunities for control enhancement and risk mitigation.* Conduct the operational risk assessment for new third-party vendors, assess SOC1 reports and provide ongoing monitoring and support to business owners of vendor relationships as required.* Map operational processes in complex parts of the business, overlay controls and work with process owners to identify enhancements and efficiencies.* Participate in firmwide projects to identify, assess and manage operational risks related to delivering the IBKR business model.* Build and monitor Key Risk Indicators, escalating changes to the risk profile to risk owners, including breaches of risk appetite limits, and identifying remedial strategies to bring exposures within tolerance.* Conduct root cause analysis on events/incidents and agree on control enhancements with process owners.* Analyze the operating model - risks and controls - at the request of the Enterprise Risk Manager or the Chief Risk Officer.* Support the Enterprise Risk Manager with building out committee reporting to inform and enhance management's decision-making.* Execute ad-hoc activities for the Enterprise Risk Manager, including but not limited to maintaining associated data for reporting and assisting with managing the Enterprise Risk Management site.Qualifications* 4+ years in Operational Risk or related function (first-line control, audit) in financial services* Working knowledge of operational risk management frameworks and practical experience executing risk and control assessments.* Knowledge of OR industry best practices and regulatory standards - forward-thinking approach to the application of risk standards* Highly diligent, results-driven, hardworking and able to execute risk assessments to a high degree of quality. Professionally skeptical.* Strong interpersonal skills, excellent work ethic, highly credible and influential presenter (verbal and written), strong communicator and influencer, team player* Superior analytical abilities and decision-making skills; ability to exercise independent judgment* Demonstrate strong ability to write clearly and concisely.* Working knowledge of US regulations regarding Operational Risk and industry practices for global brokers or other financial services companies is a plus.* Strong MS Office skills, including data management and analysis* A bachelor's degree is required; an advanced education degree is preferred.To be successful in this position, you will have the following:* Self-motivated and able to handle tasks with minimal supervision.* Superb analytical and problem-solving skills.* Excellent collaboration and communication (Verbal and written) skills.* Outstanding organizational and time management skills.Company Benefits & Perks* Competitive salary, annual performance-based bonus and stock grant* Retirement plan 401(k) with a competitive company match* Excellent health and wellness benefits, including medical, dental, and vision benefits, and a company-paid medical healthcare premium* Wellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)* Paid time off and a generous parental leave policy* Daily company lunch allowance provided, and a fully stocked kitchen with healthy options for breakfast and snack* Corporate events, including team outings, dinners, volunteer activities and company sports teams* Education reimbursement and learning opportunities* Modern offices with multi-monitor setupsCompany OverviewInteractive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment.IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments.Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

Interactive Brokers Interview Questions

Interactive Brokers Interview Guides

Interactive Brokers Interview Questions

Interactive Brokers Salaries by Position

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