Staff/Senior Machine Learning Engineer

38 - 50 USDNet per hour - B2B
AI/ML

Staff/Senior Machine Learning Engineer

AI/ML
-, Kraków +1 Location

VirtusLab

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B2B Contract
B2B
Senior
Remote
38 - 50 USDNet per hour - B2B

Job description

We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering our team. As part of the expanding VirtusLab Group, we offer a compelling environment for those seeking to make a substantial impact in the software industry within a forward-thinking organization.

About the role

Join our team to drive business innovation with production-ready machine learning pipelines. You will play a key role in deploying and maintaining ML workflows, leveraging GCP for cloud computing and on-prem clusters for ETLs. Collaborating closely with Data Scientists, you will contribute to AI-powered projects while shaping the organization’s technical culture.

Python Expert

Airflow Advanced

PySpark Advanced

GCP Regular

ML/LLM Advanced

Project

Anomalsky

Project Scope

Our client is a NASDAQ-listed B2B data company powering Go-To-Market strategies with a 360-degree view of every customer, a view whose value depends on the quality of billions of person and company records.

Anomalsky is the ML system we built to catch what traditional observability misses: row-level semantic anomalies (e.g., a first_name, title, company_name). Three layers, an ML layer (embeddings + unsupervised clustering) flags suspicious records at scale, an LLM layer removes false positives and explains each cluster, and an optional human-in-the-loop lets domain experts resolve whole clusters at once. The MVP already drove ~40k crucial record corrections in production.

What’s next: the MVP is landing on GCP now. Once it’s operational, the mission is to scale Anomalsky across the entire organization, embedding it into Acquisition pipelines and building a real-time variant that scans data before it reaches customers.

What you'll work on

  • Productionize Anomalsky on GCP and scale it to operational, organization-wide use.

  • Evolve the ML / LLM / human-in-the-loop design and the feedback loop that turns expert reviews into reusable knowledge.

  • Prototype the low-latency real-time variant.

  • Integrate Anomalsky into existing workflows, starting with Acquisition.

Tech Stack

Python, Airflow, BigQuery, Snowflake, Spark (Dataproc), Databricks, Iceberg, Starburst, Trino, AWS, GCP, Docker, Terraform, Jenkins, GitHub, Scikit Learn,  unsupervised anomaly detection (kNN, Isolation Forest, autoencoders), recursive clustering, classifiers on real + synthetic data, MLflow, LLM-based reasoning.

Team

ML and data engineers from VirtusLab working alongside customer data engineers, a manager.

What we expect in general:

  • 5+ years of hands-on machine learning engineering experience

  • Hands-on experience in deploying Python projects.

  • Strong experience in writing high-quality Python code.

  • Experience with orchestration tools such as Airflow.

  • Knowledge of Spark or other distributed data processing tools.

  • Experience with Kubernetes ecosystem as a user.

  • Strong experience in Cloudand Docker

  • Ability to work in a team and participate in the design process.

  • Good command of English (B2/C1).

Seems like lots of expectations, huh? Don’t worry! You don’t have to meet all the requirements.
What matters most is your passion and willingness to develop. Apply and find out!

A few perks of being with us

  • Building tech community

  • Flexible hybrid work model

  • Home office reimbursement

  • Language lessons

  • MyBenefit points

  • Private healthcare

  • Training Package

  • Virtusity / in-house training

  • And a lot more!

Apply now

Tech stack

    English

    B2

    Polish

    B2

    Python

    advanced

    Airflow

    advanced

    PySpark

    advanced

    Machine Learning

    advanced

    GCP

    regular

    LLM

    regular

Office location

About the company

VirtusLab

Join the VLteam and elevate your career to new heights! Join us in shaping the future of software engineering with a team that values flexibility, fosters an open-minded culture, and delivers outstanding solutions. We ha...
Company profile

Staff/Senior Machine Learning Engineer

38 - 50 USDNet per hour - B2B
Summary of the offer

Staff/Senior Machine Learning Engineer

-, Kraków
VirtusLab
38 - 50 USDNet per hour - B2B
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