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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 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?

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?

AE Business Solutions is seeking a highly skilled and motivated  Software   Engineer  to join our dynamic team focused on delivering innovative automation and control solutions. The ideal candidate will have a strong background in developing CI/CD pipelines, test automation, and embedded control systems, with practical experience across a broad technology stack including Rust, Python, Docker, and modern messaging protocols.
This role is Hybrid so requires candidates that are local to Wisconsin, or willing to relocate at their own expense.
**No C2C candidates at this time and sponsorship is not an option upon FTE conversion.
Key Responsibilities
Design, develop, and maintain CI/CD pipelines using  GitHub Actions ,  Docker , and support  over-the-air (OTA)  update mechanisms.
Write, test, and deploy software in  Rust  and  Python , with working knowledge of  C# ,  C++ , and  JavaScript .
Build scalable, maintainable control applications running on  Linux (Ubuntu) .
Integrate and manage communication via messaging protocols such as  MQTT ,  Modbus (RTU & TCP) , and  BACnet .
Collaborate with cross-functional teams to design and implement  RESTful APIs  and  microservices architectures .
Troubleshoot and resolve issues related to  networking protocols  (TCP/IP, HTTP, LAN/WAN, wireless, routing).
Develop and maintain interfaces to various  database systems  for data logging, analytics, and monitoring.
Work on automation testing frameworks and deployment infrastructure to support rapid iteration and reliability.
Document software design, configuration, and workflows for maintainability and scalability.
Required Qualifications
Bachelor's or Master's degree in Electrical Engineering, Computer Science, or a related field.
3–7 years of relevant experience in controls or automation engineering.
Demonstrated experience in:
CI/CD pipeline creation and maintenance ( GitHub Actions ,  Docker ,  OTA ).
Programming in  Rust  and  Python .
Embedded Linux systems ( Ubuntu  preferred).
Messaging protocols:  MQTT ,  Modbus ,  BACnet .
Networking fundamentals:  TCP/IP ,  HTTP ,  LAN/WAN ,  wireless , and  routing .
Building and consuming  RESTful APIs  and designing systems with  microservices architecture .
Working with  relational and/or NoSQL database systems .
Preferred Qualifications
Familiarity with power and energy systems, including  energy engineering ,  microgrids , and  BESS (Battery Energy Storage Systems) .
Experience with energy-specific communication standards such as  DNP3 ,  IEEE 2030.5 , or  IEC 61850 .
Background in control systems development for industrial or distributed energy applications.
Want to Join us? Apply here or send your resume to   careers@aebs.com

TECHNOLOGY. INNOVATION. PEOPLE

The AE Advantage!
We're not a staffing company: We're an IT Solutions Integration company with an IT Staff Augmentation Division. We've been Madison-based for over 70 years. Not only is Madison the market we serve, but it's our home.

** We pay a generous bonus for the referral of an eligible candidate who works for AE Business Solutions for 90 days**
AE Business Solutions does not sponsor applicants for employment visas.
AE Business Solutions is an Equal Opportunity Employer. EOE/AA

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