Machine Learning Product Developer Jobs

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Senior Machine Learning Engineer, Advertiser Growth

Unity Technologies SF Olympia, WA

Olympia, WA

Today

$166k - $273k/yr Full time Artificial Intelligence Big Data Data Analysis

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Job Description

Unity’s Advertiser Growth team is hiring a Senior Machine Learning Engineer to lead ML systems that protect budget reliability and improve marketplace performance.

Responsibilities

Design and tune pacing controllers (including PID and probabilistic forecasting) to smooth advertiser spend across different time zones and traffic spikes.
Drive backend integration of Generative AI models (Diffusion, LLMs) to automate production of image and video creative aligned to campaign goals and formats.
Build and scale infrastructure for high-velocity experimentation, including A/B testing, switchback tests, and long-term holdouts to quantify marketplace changes on advertiser ROI and platform health.
Architect and operate high-throughput billing pipelines that process billions of events with 100% accuracy, connecting real-time ad delivery to mission-critical financial reconciliation.
Analyze complex financial and marketplace datasets to refine the trade-off between spend velocity and advertiser performance, using experimentation outcomes to adjust pacing and billing logic.

Requirements

Advanced degree in computer science or a relevant engineering field (or equivalent experience).
6+ years of software engineering experience, with 3+ years working on ads delivery systems.
Proven ability building and operating large-scale, low-latency backend systems using Java, Go, or Scala.
Deep familiarity with budget control systems, feedback loops, or spend-prediction algorithms.
Experience building or scaling experimentation platforms, including variance reduction, handling interference or network effects, and designing metrics for marketplace contexts.
Track record on mission-critical pipelines such as billing, payments, or clearinghouses where data precision, idempotency, and fault tolerance are essential.
Experience or strong interest in backend workflows to serve, scale, and store Generative AI models for creative generation.
Real-time stream processing experience with Kafka, Flink, or Spark, applied to event-based charging and real-time feedback loops.
Ability to lead complex, multi-quarter technical roadmaps and mentor senior engineers in a fast-growing environment.

Technologies

PID, probabilistic forecasting
Diffusion, LLMs
A/B testing, switchback tests, long-term holdouts
Java, Go, Scala
Kafka, Flink, Spark

Compensation

Base salary range: USD 165,600 to 273,400 per year
Zone A: USD 210,300 to 273,400
Zone B: USD 187,200 to 243,300
Zone C: USD 165,600 to 215,200
Beyond base salary, the role may be eligible for equity awards and participation in company incentive plans (such as annual discretionary bonuses or sales commissions).
Final offer depends on geographic location, relevant experience, professional background, and skill set.

Benefits

Comprehensive health, life, and disability insurance
Commute subsidy
Employee stock ownership
Competitive retirement/pension plans
Generous vacation and personal days
Support for new parents through leave and family-care programs
Office food snacks
Mental Health and Wellbeing programs and support
Employee Resource Groups
Global Employee Assistance Program
Training and development programs
Volunteering and donation matching program

Additional Information

Location: Olympia, WA (onsite)
English requirement: sufficient knowledge of English for professional verbal and written communication with colleagues and partners worldwide.
You might also have experience embracing AI as a strategic advantage in engineering, following established best practices for code quality and security.

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