CNN Digital is seeking a Machine Learning Engineer I to join its innovative ML/AI team, working on production systems that enhance personalization, search, recommendations, and content understanding for CNN's digital platforms. This role involves building full-lifecycle machine learning systems in Python, developing and maintaining robust ML pipelines, implementing rigorous experimentation frameworks, and optimizing systems for real-time performance at scale. The ideal candidate will collaborate closely with cross-functional teams to ensure reliability and scalability of ML solutions while contributing to code reviews and documentation. Required qualifications include a graduate degree in a quantitative field, 1+ years of professional experience in production ML environments, strong Python skills, and proficiency in machine learning frameworks like scikit-learn. Preferred candidates have hands-on experience with recommendation systems, NLP, experimentation platforms, cloud services, and containerization tools.
Build and deploy full-lifecycle machine learning systems for CNN digital products.
Develop and maintain production ML pipelines including feature engineering and model training.
Implement rigorous experimentation frameworks to validate model performance and impact.
Optimize ML systems for real-time performance serving millions of users.
Partner with platform teams to ensure ML systems meet reliability and scalability standards.
What we're looking for
Graduate degree in Computer Science, Mathematics, Statistics, Engineering, or related field
1+ years of professional experience building and deploying ML systems in production environments
Strong Python programming skills with experience using machine learning frameworks like scikit-learn
Experience across the full ML lifecycle including data preprocessing, feature engineering, model training, evaluation, and deployment
Solid understanding of software engineering best practices and collaboration with cross-functional teams
Ability to implement rigorous experimentation and A/B testing frameworks for validating model performance
Market check
Salary context
This
$99,400–$184,600
range sits above
9%
of similar postings on FindRole.
Peer median band
$161,700–$241,500
Median floor and ceiling across peers.
Typical midpoint (25–75%)
$174,218–$244,000
Middle half of comparable postings.
Based on 239 comparable postings.*
* 240 is the maximum number of comparable postings sampled.
Employer
About Warner Bros. Discovery
Warner Bros. Discovery is a global media and entertainment company operating a broad portfolio of iconic content and brands including Warner Bros. film studio, HBO, CNN, Discovery Channel, and Max streaming service. Industry: Media & Entertainment
Warner Bros. Discovery currently has
54 open roles
on FindRole.
Listed pay typically runs
$121,100–$224,900
across 37 roles with salary data.
Python
TensorFlow
PyTorch
scikit-learn
MATLAB
C++
signal processing
wireless communication
MIMO
OFDM
SDRs
GPU acceleration
embedded machine learning
real-time systems
adaptive modulation
beamforming
cognitive radio techniques
3GPP
IEEE 802.11/15
military waveforms