Prepare for and practice interview questions from Venmo.

Venmo Interview Questions

Venmo Interview Guides

<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?

<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>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

Venmo Salaries by Position

<p>The Company
PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy.
We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. PayPal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers.
We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources. Our PayPal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end-to-end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk.
Job Description Summary:
We are seeking a highly skilled and enthusiastic Sr. Staff Software Engineer to assist with unlocking potential for our adjacencies using the power of a single INC level identity. As an Identity Engineer in our development team, you will be responsible for the design, development and quality delivery of the platform web services and infrastructure.
Meet Our Team:
The Identity Platform team is at the forefront of changing the fabric of modern authentication by delivering a modern, secure, extensible authentication platform which allows PayPal users to securely authenticate to any application, using any authentication method and on any device. This platform processes millions of login requests each day, enabling PayPal and its partners to rapidly innovate on new payment scenarios and enable new experiences.
What you need to know about the role:
As an Identity Engineer in our development team, you will be responsible for the design, development and quality delivery of the platform web services and infrastructure.
Your way to impact:
Your day to day:
Partner alongside software engineers and various cross functional team members to build, manage, perform and support various aspects of real time projects.
Develop applications to support various functions across Identity.
Leverage your existing skills while learning and implementing new technologies.
Identify additional areas of opportunity and means for knowledge sharing practices across teams.
Develop a high-level view of the functions, usages, and needs of all external APIs, and use this to drive architecture decisions.
Trace bugs and errors through multiple systems, including ones you don’t own, sometimes on behalf of customer-facing teammates.
Drive team discussions on technical strategy, system architecture, and component design.
Participate in all stages of the software development cycle, including design and development of significant new architectural systems and improvements.
What do you need to bring:
10+ years of backend software development experience.
Experience in Identity Domain, User onboarding and profile management.
Excellent verbal and written communication skills.
Proficient in Java.
Proficient in multiple programming languages/scripting languages.
Proficient in JavaRx, Reactive Spring or Functional programming.
Solid understanding of distributed systems and cloud architectures.
Proficient in continuous integration process and tools.
Excellent skills in complex technical problem-solving.
Quality mindset with experience in writing test plans and automation.
Preferred Qualifications:
Ability to present technical problems to non-technical audiences.
Prior experience in developing orchestration platforms.
Experience working in a large engineering environment, coordinating across multiple teams, and leading organization-wide projects.
Subsidiary: PayPal
Travel Percent: 0
PayPal is committed to fair and equitable compensation practices. Actual Compensation is based on various factors including but not limited to work location, and relevant skills and experience.
The total compensation for this practice may include an annual performance bonus (or other incentive compensation, as applicable), equity, and medical, dental, vision, and other benefits.
For the majority of employees, PayPal's balanced hybrid work model offers 3 days in the office for effective in-person collaboration and 2 days at your choice of either the PayPal office or your home workspace.
Our Benefits:
At PayPal, we’re committed to building an equitable and inclusive global economy. That’s why we offer benefits to help you thrive in every stage of life.
Commitment to Diversity and Inclusion:
PayPal provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state, or local law.

#J-18808-Ljbffr</p>

<p>At PayPal (NASDAQ: PYPL), we believe that every person has the right to participate fully in the global economy. Our mission is to democratize financial services to ensure that everyone, regardless of background or economic standing, has access to affordable, convenient, and secure products and services to take control of their financial lives.

Job Description Summary:
What you need to know about the role- As a Senior Staff Software Engineer, you will act as a subject matter expert. We are looking for technologists with the highest levels of technical talent, programming, and communication skills with a keen desire to deeply understand our product and how to make our systems stronger and more resilient. Meet our team Engineering is a craft, and at Venmo we want the internals of our software to be as elegant as the end user experience we are designing. We spend our days scaling our payment backend services and building new features to meet and exceed our user’s needs and wants. We teach and learn from one another and push each other to be at our creative and analytical best. We work to push our technology forward with respect to functionality, performance, reliability, and scalability.

Job Description:
Your way to impact

As a Senior Staff Software Engineer for Venmo Payments Engineering you will act as a senior engineer and subject matter expert for the Payments Platform Engineering team. You will have the opportunity to work on one of the biggest payments platform that caters to 60 million active users and had a transaction volume of 37 billion dollars in Q2 2020 alone. And we have a YoY growth rate of 70%. Given all these fun challenges, we are a fast-paced organization going through rapid growth that is solving technical challenges at exponential scale. As an organization, we have a strong culture of committing to goals and delivering on timelines.

Your day to day

Lead engineering efforts and team level processes by defining outcomes for others, refining ongoing processes, and providing technical advice to senior leaders on systems, solutions, challenges and strategy.
Support end-to-end ownership of design, implementation and operational excellence of software components while proactively improving existing structures and processes.
Contribute to the technical engineering roadmap by completing quality and thorough assessments of implementation alternatives and their associated tradeoffs and providing recommendations
Provides technical leadership for a small team with minimum guidance from management or senior teammates.
Design, estimate and implement new and refactored software services on the platform securely, reliably and at scale. Take ownership of quality of design and implementation of software components.
Deliver high quality code on time and follow our SDLC process.
Own the performance and availability of the services as well as participate in on call rotations and provide support during incidences
Have an appetite to learn and contribute to complex projects alongside your colleagues.
Participate in code reviews.
Interact with various non-engineering teams such as product, support, finance operations, compliance and legal.

What Do You Need To Bring
Bachelor’s and/or Masters in computer science, or a related field of study, or equivalent experience
10+years’ experience with Python or equivalent high-level programming language
Advanced skills with RDBMS and NoSQL data stores, caching solutions (e.g. Redis, ElastiCache, Hazelcast) and messaging/queuing protocols/systems such as SQS/Kafka/RabbitMQ/Pulsar
Ability to lead projects and mentor all levels of engineering staff, along with managing relationships with Product, Engineering Operations and non-technical business and support teams
Expert with distributed services and backend systems
Expertise with building services on public cloud – AWS, GCP, Azure
Experience in managing infrastructure as code using Terraform
Experience working with fault-tolerant and scalable distributed services and systems.
We know the confidence gap and imposter syndrome can get in the way of meeting spectacular candidates. Please don't hesitate to apply.

Our Benefits:

At PayPal, we’re committed to building an equitable and inclusive global economy. And we can’t do this without our most important asset—you. That’s why we offer benefits to help you thrive in every stage of life. We champion your financial, physical, and mental health by offering valuable benefits and resources to help you care for the whole you.

We have great benefits including a flexible work environment, employee shares options, health and life insurance and more. To learn more about our benefits please visit https://www.paypalbenefits.com

Who We Are:

To learn more about our culture and community visit https://about.pypl.com/who-we-are/default.aspx

PayPal has remained at the forefront of the digital payment revolution for more than 20 years. By leveraging technology to make financial services and commerce more convenient, affordable, and secure, the PayPal platform is empowering more than 400 million consumers and merchants in more than 200 markets to join and thrive in the global economy. For more information, visit paypal.com.

PayPal provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, PayPal will provide reasonable accommodations for qualified individuals with disabilities. If you are unable to submit an application because of incompatible assistive technology or a disability, please contact us at paypalglobaltalentacquisition@paypal.com.

As part of PayPal’s commitment to employees’ health and safety, we have established in-office Covid-19 protocols and requirements, based on expert guidance. Depending on location, this might include a Covid-19 vaccination requirement for any employee whose role requires them to work onsite. Employees may request reasonable accommodation based on a medical condition or religious belief that prevents them from being vaccinated.

REQ ID R0110450
#J-18808-Ljbffr</p>

<p>At PayPal (NASDAQ: PYPL), we believe that every person has the right to participate fully in the global economy. Our mission is to democratize financial services to ensure that everyone, regardless of background or economic standing, has access to affordable, convenient, and secure products and services to take control of their financial lives.

Job Description Summary:
You will build and contribute to high-performing systems in close partnerships with various teams. You will also possess keen judgment in selecting technologies and building the right solution for the meaningful challenges we get to tackle here.

Job Description:
Your Way to Impact:

You will build and contribute to high-performing systems in close partnerships with various teams. You will also possess keen judgment in selecting technologies and building the right solution for the meaningful challenges we get to tackle here.

Your day to day

Develop andmaintainhigh performing, reusable Swift codeand stay current with the newest mobile technologies.
Provide and receive feedback on code through pull requests and regular reviews of processes.
Work with product owners to crystallize the technical needs during grooming and planning meetings. You willalso work withengineering managers, engineers, and partner teams to develop innovative solutions.
Define and develop processes,toolsand methodologies to achieve excellence in software development, testing, and deployment, follow coding standards and guidelines with attention to performance, scalability, and availability.

What You Need To Bring
At least 2 years of iOS development experiencewithSwift programming skills.
Understanding of mobile UI design principles, patterns, and best practices.
Experience building iOS applications connected to APIs – RESTful and GraphQL.
Practical knowledgeofiOS architecture.
Experience with a version control system and the processes that come with committing, reviewing, and merging code across a team.
A solid grounding in Computer Science & UI Design fundamentals.
2-3 years of experience building successful production software system
We know the confidence gap and imposter syndrome can get in the way of meeting spectacular candidates. Please don't hesitate to apply.

Our Benefits:

At PayPal, we’re committed to building an equitable and inclusive global economy. And we can’t do this without our most important asset—you. That’s why we offer benefits to help you thrive in every stage of life. We champion your financial, physical, and mental health by offering valuable benefits and resources to help you care for the whole you.

We have great benefits including a flexible work environment, employee shares options, health and life insurance and more. To learn more about our benefits please visit https://www.paypalbenefits.com

Who We Are:

To learn more about our culture and community visit https://about.pypl.com/who-we-are/default.aspx

PayPal has remained at the forefront of the digital payment revolution for more than 20 years. By leveraging technology to make financial services and commerce more convenient, affordable, and secure, the PayPal platform is empowering more than 400 million consumers and merchants in more than 200 markets to join and thrive in the global economy. For more information, visit paypal.com.

PayPal provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, PayPal will provide reasonable accommodations for qualified individuals with disabilities. If you are unable to submit an application because of incompatible assistive technology or a disability, please contact us at paypalglobaltalentacquisition@paypal.com.

As part of PayPal’s commitment to employees’ health and safety, we have established in-office Covid-19 protocols and requirements, based on expert guidance. Depending on location, this might include a Covid-19 vaccination requirement for any employee whose role requires them to work onsite. Employees may request reasonable accommodation based on a medical condition or religious belief that prevents them from being vaccinated.

REQ ID R0112794
#J-18808-Ljbffr</p>

Venmo Interview Questions

Venmo Interview Guides

Venmo Interview Questions

Venmo Salaries by Position

Venmo Opening Jobs