Senior Data/ML Engineer Python, Spark, AWS, Glue, SageMaker, Lambda, TensorFlow, PyTorch, SQL W[...]

DCG Poland; Warszawa; Hybrid; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Private medical care

Co-financing for sports card

Dedicated consultant support

Job summary

DCG Poland is seeking a skilled ML Engineer to manage end-to-end model lifecycles, implement MLOps, and build real-time/batch data pipelines using Spark and Python. You will collaborate with data scientists, DevOps, and IT to deliver robust ML solutions and analytics for stakeholders.

The role requires 5+ years in Python/Spark, substantial AWS ML experience, and strong English communication. Join a team focused on advanced analytics and scalable data processing in Warsaw.

Qualifications

• Proficiency in Python and Spark (5+ years).
• Hands-on AWS ML/data processing services (S3, Glue, SageMaker, Lambda, StepFunctions/Airflow/MWAA).
• Experience with ML frameworks (TensorFlow or PyTorch) and model deployment.
• Strong SQL (Spark/Hive SQL) and data workflows.
• Familiar with distributed systems and big data ecosystems.
• Excellent English communication.

Responsibilities

• Manage the lifecycle of ML models from development to deployment and monitoring.
• Implement MLOps practices for CI/CD, testing, and monitoring.
• Work with Spark and Python for data ingestion and transformation (real-time and batch).
• Build distributed big data pipelines for massive datasets.
• Collaborate with data scientists, DevOps, and IT to deliver ML solutions.
• Engage with stakeholders to develop analytics models.

Skills

Python

Spark

AWS

ML frameworks

SQL

GIT

Agile

English

Tools

Spark

Hadoop/Hive

AWS CLI

boto3

Airflow/MWAA

Git

Job description

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for:

Responsibilities:

• Managed the lifecycle of machine learning models from development to deployment and monitoring, ensuring optimal performance and reliability
• Implemented MLOps principles, including continuous integration, continuous delivery, testing, and monitoring, to streamline machine learning operations
• Working with Spark & Python to define and maintain data ingestions and transformation, handling both real-time and batch data processing
• Building distributed and highly parallelized big data processing pipeline which process massive amount of data (both structured and unstructured data) in near real-time
• Leverage Spark to enrich and transform corporate data to enable searching, data visualization, and advanced analytics
• Collaborated with cross-functional teams, including data scientists, DevOps engineers, and IT, to deliver high-quality machine learning solutions
• Working closely with analysts and business stakeholders to develop analytics models
• Help in optimizing our current MLOps practices and libraries, make applicable for wider range of use cases outside propensity models
• Cloud solution exploration for AI/ML areas

Requirements:

• Proficiency in programming languages like Python & Spark - minimum 5 years
• Hands-on experience with AWS services for machine learning and data processing - particulary S3, Glue, SageMaker, Lambda and StepFunctions/Airflow/MWAA - covering data ingestion, model training, batch inference and automation pipelines
• Practical understanding of AWS Infrastracture setup and automation using AWS CLI, boto3 and IAM roles, ensuring reproducible and secure ML workflows
• Understanding of algorithms and data structures, knowledge of statistics and linear algebra
• Experience with machine learning frameworks (TensorFlow or PyTorch), including training new ML models, refining existing ones, and deploying these models into user-friendly applications
• Solid understanding of distributed systems with experience in Hadoop/Hive ecosystem and/or other Big Data Technologies
• Proficient in SQL (Spark/Hive SQL), previous experience in creating data flows
• Experience with BitBucket and GIT, code versioning and branching strategy
• Familiar with Agile/SAFe framework
• Very good command of English, both spoken and written

Nice to have:

• Experience in designing and implementing Machine Learning models (e.g., Propensity Models, Customer Lifetime Value, Micro-segmentation, and Channel Recommendation Models)
• Ability to support use case teams in model training and deployment

Offer:

• Private medical care
• Co-financing for the sports card
• Constant support of dedicated consultant

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