As a Machine Learning Engineer, you will be in charge of building end-to-end machine learning pipelines that operate at a huge scale, from data investigation, ingestions and model training to deployment, monitoring, and continuous optimization. You will ensure that each pipeline delivers measurable impact through experimentation, high-throughput inference, and seamless integration with business-critical systems. This job combines 70% machine learning engineering and 30% algorithm engineering and data science.

We're seeking an Adtech pro who thrives in a team environment, possesses exceptional communication and analytical skills, and can navigate high-pressure demands of delivering results, taking ownership, and leveraging sales opportunities.

Responsibilities:

Build ML pipelines that train on real big data and perform on a massive scale.
Handle a massive responsibility, Advertise on lucrative placement (Samsung appstore, Xiaomi phones, Truecaller). Train models that will make billions of daily predictions and affect hundreds of millions users.
Optimize and discover the best solution algorithm to data problems, from implementing exotic losses to efficient grid search.
Validate and test everything. Every step should be measured and chosen via AB testing.
Use of observability tools. Own your experiments and your pipelines.
Be Frugal. Optimize the business solution at minimal cost.
Advocate for ai. Be the voice of data science and machine learning answering business needs.
Build future products involving agentic AI and data science.
Affect million of users every instant and handle massive scale

Requirements

MSc in CS/EE/STEM with at least 5 years of proven experience (or BSc with equivalent experience) as a Machine Learning Engineer: strong focus on MLOps, data analytics, software engineering, and applied data science-
Must
Hyper communicator: Ability to work with minimal supervision and maximal transparency. Must understand requirements rigorously, while frequently giving an efficient honest picture of his/hers work progress and results. Flawless verbal English-
Must
Strong problem solving skills, drive projects from concept to production, working incrementally and smart. Ability to own features end to end, theory, implementation and measurement. Articulate data driven communication is also a must.
Deep understanding of machine learning, including the internals of all important ML models and ML methodologies.
Strong real experience in Python, and at least one another programming languages (C#, C++, Java, Go). Ability to write efficient, clear and resilient production grade code. Flawless in SQL.
Strong background in probability and statistics. Experience with tools and ML models Experience with conducting A/B test.
Experience with using cloud providers and services (AWS) and python frameworks: TensorFlow/PyTorch, Numpy, Pandas, SKLearn (Airflow, MLflow, Transformers, ONNX, Kafka are a plus).
AI/LLMs assistance: Candidates have to hold all skills independently without using AI assist. With that candidates are expected to use AI effectively, safely and transparently.

Preferred:

Deep Knowledge in ML aspects including ML Theory, Optimization, Deep learning tinkering, RL, Uncertainty quantification, NLP, classical machine learning, performance measurement.
Prompt engineering and Agentic workflows experience
Web development skills
Publication in leading machine learning conferences and/or medium blogs

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Senior Machine Learning Engineer