Machine Learning Engineer

  • Strada Take Ionescu, Cluj-Napoca 400000, Romania
  • Full-time

Company Description

Connatix is a next-generation video platform that helps publishers deliver successful video experiences without compromise. In order to realize our mission, we need your help to design and build state-of-the-art machine learning models and large-scale systems to predict users engagement on different ads as accurately as possible.

Job Description

What you’ll be doing?

  • You will be involved in all steps, including data collection, data processing, ML algorithms and ML model deployments
  • Apply machine learning and data mining techniques for a variety of modeling and relevance problems involving users activities

  • Work with large unstructured and structured data sets (2+ billion daily events, terabyte of data stored daily, 4+ petabytes of video streaming per month)

  • Perform exploratory data analyses

  • Design and develop machine learning algorithms

  • Generate and test working hypotheses

  • You will work closely with live production systems and product teams, and learn to deliver machine learning solutions at scale

  • Build smarter, more efficient ways of automating machine learning processes, including labeling, training, testing and visualization

  • Prepare and analyze historical data and identify patterns

  • Conduct production A/B testing, interpret and understand algorithm performance


  • Previous working experience as a Machine Learning for 2+ years
  • Skilled in using various machine learning algorithms for classification and regression

  • Proven experience with one or more general purpose programming languages including but not limited to: Python, Java, Scala, R, C# and an interest in learning new languages and technologies

  • Experience with large-scale systems and data, e.g. Spark, distributed systems

  • Strong ability to analyze functional needs that drive the analysis and technical design of quality technical solutions

  • Very good understanding and hands-on experience with Amazon Web Services (Kinesis, Athena, Firehorse, S3, EC2, EMR)

  • Experience working with high-performance scalable systems

  • Excellent interpersonal communication skills

  • Excellent technical writing skills

  • Organizational, problem solving, and time management abilities

  • Fluent in English

  • A Bachelor's degree or equivalent in Computer Science, Engineering or other technical discipline

  • Excited about building powerful yet efficient big-data infrastructure for machine learning

Additional Information

Life is short. Work someplace great!

Connatix offers a dynamic, flexible work environment with competitive salary. The challenges we solve are serious, but we’re not. We have fun every day because we love what we do. We are on a mission to shape the future of native video and this is your chance to be part of it. Want to join the team that’s already thinking about what interactive media is going to look like five years from now?

We would like our new colleague:

  • To be open minded and a team player.

  • To have the ability to organize and prioritize their work.

  • To have a proactive attitude and to deeply care about the quality of their work

We are a young, fun team, and we like to have responsible colleagues who are able to complete  their tasks in a flexible way and work as they desire. We are looking for colleagues that will contribute to our great chemistry and make our team even stronger,

This is a great opportunity for the right candidate. If you are a team player who likes friendly, non-corporate environments and is looking to make a true impact, let's meet and talk about it.