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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

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

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?

Evil Geniuses Salaries by Position

141 W Jackson Blvd. Suite 500 Chicago, IL 60604 Apex Fintech Solutions (AFS) powers innovation and the future of digital wealth management by processing millions of transactions daily, to simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech solutions enables us to support clients such as Stash, Betterment, SoFi, and Webull, and more than 20 million of our clients' customers.
Collectively, AFS creates an environment in which companies with the biggest ideas in fintech are empowered to change the world. We are based in Dallas, TX and also have offices in Austin, New York, Chicago, Portland, and Belfast.
If you are seeking a fast-paced and entrepreneurial environment where you'll have the opportunity to make an immediate impact, and you have the guts to change everything, this is the place for you.
ABOUT THIS ROLE
This is an incredible opportunity for a Senior Software Engineer to join Apex's Engineering team. As a senior software engineer, you will work closely with other engineers, tech leads, product managers, and architects to build our next generation Risk Management platform. The Senior Software Engineer will be an integral part of our team supporting the technology organization in a transformation toward a highly scalable and resilient system. This is a role for someone who flourishes in a fast-paced and collaborative environment.
Duties/Responsibilities
Define, develop, deploy, and operate software that delivers real value to Apex. We often work with micro-services, managed by Kubernetes.
Own the end-to-end development of new features/tools including design, documentation, implementation, and testing of applications in GCP.
Manage project priorities, deadlines, and deliverables with your technical expertise.
Mentor the team on design techniques and coding standards.
Support the production systems on prem (legacy) and GCP which includes build, deployment (CI/CD), and monitoring (Datadog, PagerDuty).
Deliver high quality code by following coding standards, performing code reviews, and ensuring test coverage at all levels.
Identify risks, perform risk analysis, effectively manage risks; proactively raise prioritization and scheduling tradeoff decisions, escalating and identifying alternate options as appropriate; Follow defined Risk Management processes.
Collaborate with engineers and other teams to elevate technology, follow agile ceremonies, and consistently apply best practices.
Be a self-starter, capable of solving ambiguous and challenging technical problems with wide scope.
Assess existing processes and identify opportunity for improvement.
Education and/or Experience
A bachelor's or master’s degree in Computer Science, Computer Engineering, or related field (or equivalent work experience).
6+ years of professional experience working as a part of a multi-person development team, doing code reviews, testing, CI, trunk-based development, and/or other software practices.
Experience with Docker and/or Kubernetes is highly required.
Experience of any cloud-based provider (GCP/Azure/AWS) is highly desirable.
Experience with developing highly scalable and performant microservices.
Required Skills/Abilities
Strong fundamentals of system architecture, object-oriented design, algorithm, and data structures.
Expertise in one or more of server-side programming languages (Java, Python).
Experience working in risk libraries like QuantLib or equivalent is preferred.
Experience and knowledge of FinTech industry is preferred.
Knowledge in one or more of DBMS technology (SQL Server, PostgreSQL, Oracle, MySQL).
Ability to visualize and propose system design, document the design and implement it.
Ability to learn new and unfamiliar technologies quickly, as required.
Adaptability: while you enjoy establishing processes and standards, you understand the need to be flexible and enjoy trying new things.
Financial services background is a plus.
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.
Our Rewards
We offer a robust package of employee perks and benefits, including healthcare benefits (medical, dental and vision, EAP), competitive PTO, 401k match, parental leave, and HSA contribution match. We also provide our employees with a paid subscription to the Calm app and offer generous external learning and tuition reimbursement benefits. At AFS, we offer a hybrid work schedule for most roles that allows employees to have the flexibility of working from home and one of our primary offices.
Diversity, Equity, Inclusion, and Belonging (DEIB) Commitment
We're looking for all kinds of people. At Apex, we believe that wealth management and investing should be accessible to everyone, and we strive to create spaces to democratize investing for folks of all walks of life. Internally, we embrace diversity and are dedicated to creating an inclusive and equitable workplace, which reflects our company vision and mission. We value every team member's unique perspective and are committed to fostering a culture where everyone belongs. Join us in our mission to empower and celebrate individual differences.
Apex is committed to being an equal opportunity employer. We ensure that qualified applicants receive fair consideration for employment without discrimination based on sex, gender identity, gender expression, sexual orientation, race, color, natural or protective hairstyle, genetics, religion, national origin, disability, protected veteran status, age, or any other characteristic protected by law. Know your rights: workplace discrimination is illegal. We stand by this commitment to promote a diverse, equitable, and inclusive workforce.

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