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Added 4 months ago
Développeur·se logiciel intermédiaire- Équipe Core //Intermediate Software Developer- Core Team
Plusgrade
Montreal, Quebec
Full-time
Tu maîtrises Java et Spring Boot et tu possèdes une solide expérience pratique dans le déploiement de systèmes distribués sur AWS.
Added 4 months ago
Lead Java Full Stack Developer
Citi
Mississauga, Ontario
Full-time
Role Summary: We are looking for a Java Full-Stack Engineer to design, build, and support modern web applications. This role spans front-end development (Angular or React) and back-end…
Added 1 month ago
Senior Software Developer in Test (SDET)
Global Relay
Halifax, NS
As a Senior Software Developer in Test (SDET), you will be part of a small, highly focused team responsible for delivery of highly scalable and robust services within Global Relay’s…
Added 4 months ago
(CAN) Solution Consultant II
Walmart
Mississauga, Ontario
Full-time
Experience with microservices architecture, distributed systems, and API design.
Added 4 months ago
Lead Java Full Stack Developer
Citi
Remote, Canada
Full-time · Remote
Role Summary: We are looking for a Java Full-Stack Engineer to design, build, and support modern web applications. This role spans front-end development (Angular or React) and back-end…
Added 4 months ago
Project Infrastructure & MBSE Engineer - NETE
Weir
Dartmouth, Nova Scotia
Full-time
…data integration, analysis, Application Programming Interface (API) development and Independent Verification & Validation (IV&V) services in support of the Royal Canadian Navy…
Added 4 months ago
Solutions Architect
Bond Brand Loyalty
Toronto, ON
$107,210.71 to $146,569.41 CAD / year
Distributed, integration-heavy, API-centric systems.
Added 27 days ago
Software Engineer
Scotiabank
Toronto, ON
4+ years’ experience with a modern programming language such as Java or Python or .NET/C#
Added 11 days ago
Software Engineer (C++)
Scotiabank
Toronto, ON
…The role focuses mainly on backend development using C++ / Java / RESTful…
Added 4 months ago
Principal Fullstack Software Senior Vice President
Citi
Mississauga, Ontario
Full-time
5+ years experience and mastery of one or more modern programming languages (e.g., Java, Go, Python, C#).
Added 4 months ago
Principal Fullstack Software Senior Vice President
Citi
Remote, Canada
Full-time · Remote
5+ years experience and mastery of one or more modern programming languages (e.g., Java, Go, Python, C#).
Added 1 month ago
Senior Game Security Programmer
Epic Games
Vancouver, British Columbia
Fluency in Go, Java, C#, or similar programming language
Added 20 days ago
Développeur logiciels - Software Developer
OneSpan
Montreal, QC
Qualité développement : concevoir, développer et maintenir des cadres de test automatisés robustes pour les tests fonctionnels, de régression, de performance et d'API.
Added 4 months ago
QA Manager
Forta Solutions, LLC
Quinte West, Ontario
Design, build, and maintain automated test frameworks (e.g., UI, API, integration, performance) using agreed-upon tools and technologies.
Added 4 months ago
SAP BTP Integration Suite – Architect and Developer
SDA
Montreal, Quebec
Full-time
…a deep understanding of the SAP Integration Suite including API Management and Open Connectors. You have a proven track record of designing, developing, and implementing complex integration…
Added 5 months ago
Senior Web Developer
Pala Interactive
Toronto, Ontario
Full-time
The Senior Frontend Developer / Senior Web Developer will have primary responsibility for designing and implementing mobile gaming applications on an open source Linux platform using HTML5,…
Added 4 months ago
Customer Support Developer (Databases)
Airbyte
Remote, Canada
$101,000 to $110,000 CAD / year
Full-time · Remote
Are you the kind of developer who gets a rush from cracking a gnarly replication bug, an issue with CDC implementation, or a query that hangs with no obvious reason? Do you thrive at the…
Added 4 months ago
Business System Engineer
Hyve Solutions
Ontario · Ontario, Canada
Full-time
…designs, while leveraging expertise in software development (Java, SQL, Python), database design, and software architecture (REST, event-driven, distributed systems). The position also…
Added 26 days ago
Sr. SDET
Dialpad
Kitchener, ON
As a Senior Software Developer in Test (SDET) in the Contact Center QA team, you're both a skilled developer who builds elegant, scalable test frameworks and a quality advocate who leads a…
Added 5 months ago
Senior Applied Scientist, Measurement, Ad Tech, and Data Science (MADS)
Amazon
Toronto, Ontario
- Experience programming in Java, C++, Python or related language
Added 2 months ago
Full Stack Developer, Investly
Fidelity Canada
Toronto, Ontario
Full-time
The Full Stack Developer, Investly is responsible for helping to build and maintain Java and React.js applications. Capabilities for this role include being able to build applications in…
Added 5 months ago
Machine Learning Engineer
TD
Remote, Canada
Full-time · Remote
3+ years of developer experience shipping code in production settings
Added 27 days ago
Senior Java Developer Solution Architect - Vice President
Citi
Mississauga, ON
Full-time
We’re seeking a seasoned Senior Java Developer Solution Architect with 6+ years of experience to lead end-to-end technical design and delivery of mission‑critical systems. You will own…
Added 27 days ago
Senior Java Developer Solution Architect - Vice President
Citi
Remote, Canada
Full-time · Remote
We’re seeking a seasoned Senior Java Developer Solution Architect with 6+ years of experience to lead end-to-end technical design and delivery of mission‑critical systems. You will own…
Added 21 days ago
Senior Full Stack Java Developer- Assistant Vice President
Citi
Mississauga, ON
Full-time
The Senior Full Stack Java Developer – is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the…

Amazon

Senior Applied Scientist, Measurement, Ad Tech, and Data Science (MADS)

Toronto, ON, Canada

Posting language: English
Posted: Apr 22, 2026

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Original job description

The Measurement, Ad Tech, and Data Science (MADS) team at Amazon Ads is at the forefront of developing innovative solutions that help tens of millions of advertisers understand the value of their ad spend while prioritizing customer privacy and measurement quality.

The Media Planning Science team, part of broader MADS team, develops and implements models that deliver insights and recommendations for strategic media planning and measurement across Amazon Advertising's product portfolio. Our mission is to help advertisers create and execute plans that meet their objectives while providing accurate measurement tools. We work on a multitude of problem statements that encompass Reach and Frequency, Budget Planning Optimization, and Recommendations. Our models leverage both heuristic and machine learning approaches including deep learning techniques, with insights delivered through agent-based tools and APIs that integrate seamlessly into user interfaces and programmatic systems to ensure optimal advertising outcomes.

As a Senior Applied Scientist on the team, you will be at the forefront of innovation, developing media planning solutions end-to-end from inception to production. You will set the technical vision and innovate on behalf of our customers. You will propose, design, analyze, and productionize models to provide novel measurement insights to our customers. You will partner with engineering to deploy these solutions into production. You will work with key stakeholders from various business teams to enable advertisers to act upon those metrics.

Key job responsibilities
* Lead the development of media planning models and solutions that address the full spectrum of an advertiser's investment, focusing on scalable and efficient methodologies.
* Collaborate closely with cross-functional teams including engineering, product management, and business teams to define and implement measurement solutions.
* Use state-of-the-art scientific technologies including Generative AI, Classical Machine Learning, Causal Inference, Natural Language Processing, and Computer Vision to develop state of the art models that measure the impact of media plans across different metrics.
* Drive experimentation and the continuous improvement of ML models through iterative development, testing, and optimization.
* Translate complex scientific challenges into clear and impactful solutions for business stakeholders.
* Mentor and guide junior scientists, fostering a collaborative and high-performing team culture.
* Foster collaborations between scientists to move faster, with broader impact.
* Regularly engage with the broader scientific community with presentations, publications, and patents.

A day in the life
You will solve real-world problems by analyzing large amounts of data, generate business insights and opportunities, design simulations and experiments, and develop ML/DL models. The team is driven by business needs, which requires collaboration with other Scientists, Engineers, and Product Managers across the advertising organization. You will prepare written and verbal documents to share insights to audiences of varying levels of technical sophistication.

About the team
We are a team of scientists across Applied, Research, and Data Science disciplines. You will work with colleagues with deep expertise in ML, DL, NLP, Gen AI, and Causal Inference with a diverse range of backgrounds. We partner closely with top-notch engineers, product managers, sales leaders, and other scientists with expertise in the ads industry and on building scalable modeling and software solutions. Basic Qualifications: - 3+ years of building machine learning models for business application experience
- PhD, or Master's degree and 6+ years of applied research experience
- Experience programming in Java, C++, Python or related language
- Experience with neural deep learning methods and machine learning Preferred Qualifications: - Experience with modeling tools such as R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy etc.
- Experience with large scale distributed systems such as Hadoop, Spark etc.
- PhD in engineering, technology, computer science, machine learning, robotics, operations research, statistics, mathematics or equivalent quantitative field

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. As a total compensation company, Amazon's package may include other elements such as sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon offers comprehensive benefits including health insurance (medical, dental, vision, prescription, basic life & AD&D insurance), Registered Retirement Savings Plan (RRSP), Deferred Profit Sharing Plan (DPSP), paid time off, and other resources to improve health and well-being. We thank all applicants for their interest, however only those interviewed will be advised as to hiring status.

CAN, ON, Toronto - 195,900.00 - 327,200.00 CAD annually

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More about this job

Responsibilities

Lead the development of scalable media planning models and solutions while collaborating with cross-functional teams to define measurement strategies. Drive experimentation and continuous improvement of machine learning models to provide impactful business insights for advertisers.

Requirements

Requires a PhD or a Master's degree with 6+ years of applied research experience, along with 3+ years of experience building machine learning models. Proficiency in programming languages like Java, C++, or Python and experience with deep learning methods are essential.

Skills

Machine learning
Deep learning
Java
C++
Python
Causal inference
Natural language processing
Computer vision
Generative AI
Data science
Statistical modeling
Distributed systems
Spark
Hadoop
Media planning
Ad tech

Benefits

Health insurance
Dental insurance
Vision insurance
Prescription insurance
Basic life insurance
AD&D insurance
Deferred profit sharing plan
Paid time off

Visa sponsorship

Not detected in the job text

Keywords

Applied Scientist
Ad Tech
Data Science
Machine Learning
Deep Learning
Generative AI
Causal Inference
Natural Language Processing
Computer Vision
Java
C++
Python
Spark
Hadoop
Scikit-learn
Tensorflow
MxNet
Media Planning
Measurement
Optimization
Distributed Systems
Statistics
Mathematics
Operations Research
Algorithms
Predictive Modeling
Simulation
API
Agent-based modeling
Advertising

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