Machine Learning Engineer - Relevance & Learning Systems

Machine Learning Engineer - Relevance & Learning Systems
Remote - USA

About Wizard
Wizard is the top-performing AI Shopping Agent, delivering the best products from across the web with unmatched accuracy, quality, and trust.

The Role
We’re looking for a Machine Learning Engineer to design and build feedback driven learning systems that improve our AI agent over time. This is not a traditional RL research role, we’re focused on building systems that learn from real user behavior and improve production. You’ll be working at the intersection of a live conversational agent and real shopping behavior – the feedback signal quality here is unusually rich compared to traditional search.

You’ll focus on turning user interactions into learning signals, designing practical feedback loops and shipping systems that continuously improve real world outcomes.

What You’ll Do

Build and productionize feedback loops that improve agent performance over time

Build the evaluation infrastructure – offline metrics, regression suites, and experiment analysis

Own the signal pipelines end-to-end: instrument events, build clean labeled datasets, and translate user behaviors into reliable learning signals

Design lightweight reinforcement learning / bandit-style approaches where appropriate

Partner closely with product and engineering to define success metrics and optimize for them

Design and analyze experiments that validate whether learning system changes actually improve real outcomes

Improve ranking, recommendations and decision making within the agent

What Success Looks like

You ship quickly and drive measurable improvements in core product metrics

You turn noisy user behavior into reliable learning signals that improve the agent over time

You own systems end to end and operate comfortably in production

Ideal Background

5-8 years hands on experience building and shipping ML systems

Bachelor’s or Masters degree in computer science

Experience shipping ML systems to production and have worked on recommendation systems, ranking, personalization or optimization problems

Deep knowledge in Python and model ML tooling

Pragmatic: you choose simple, effective solutions over theoretically perfect ones

The expected base salary range for this role is $225,000 - $280,000 USD, and will vary based on skills, experience, role level, and geographic location. Final compensation will be determined by considering these factors alongside overall role scope and responsibilities.

In addition to base salary, Wizard offers:

Equity in the form of stock options

Medical, dental, and vision coverage

401(k) plan

Flexible PTO and company holidays

Fully remote work within the United States

Periodic company offsites and team gatherings

Wizard is committed to fair, transparent, and competitive compensation practices.

Voluntary Self-Identification
For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Wizard’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veterans discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Voluntary Self-Identification of Disability
Form CC-305

Page 1 of 1

OMB Control Number 1250-0005

Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at

How do you know if you have a disability?
A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability.

Disabilities include, but are not limited to:

Alcohol or other substance use disorder (not currently using drugs illegally)

Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS

Blind or low vision

Cancer (past or present)

Cardiovascular or heart disease

Celiac disease

Cerebral palsy

Deaf or serious difficulty hearing

Diabetes

Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders

Epilepsy or other seizure disorder

Gastrointestinal disorders, for example, Crohns Disease, irritable bowel syndrome

Intellectual or developmental disability

Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD

Missing limbs or partially missing limbs

Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports

Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)

Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities

Partial or complete paralysis (any cause)

Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema

Short stature (dwarfism)

Traumatic brain injury

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

#J-18808-Ljbffr