Middle Data Engineer

MMDSmart; Polska; Hybrid; PLN 150,000 - 230,000; Full time

Benefits offered by this job

Medical insurance

Sports card

English classes

Bonuses & corporate gifts

Hybrid/remote work options

Educational events

Job summary

MMDSmart Ltd. is seeking a Data Engineer to help build scalable data pipelines and data warehouse solutions. You will work with large datasets, design efficient processing workflows, and ensure the reliability and performance of the data platform.

The role emphasizes hands-on development with Python, SQL, Airflow, and BigQuery in a cloud environment, in collaboration with analysts and engineering teams. We offer flexible work formats including remote, hybrid, or office-based arrangements.

Qualifications

• 4+ years of experience as Data Engineer.
• Strong experience with SQL and Google BigQuery.
• Experience building data pipelines and ETL processes.
• Solid knowledge of Python for data processing.
• Hands-on experience with Apache Airflow.
• Experience working with large datasets.
• Understanding of data modeling and data warehouse concepts.
• Experience with query optimization and cost-efficient data processing.
• Language knowledge: fluency in Russian and English.

Responsibilities

• Build and maintain data pipelines for batch and streaming data.
• Design and optimize ETL workflows using Python and SQL.
• Develop Airflow DAGs to orchestrate data workflows.
• Implement data transformations and data quality checks.
• Optimize BigQuery queries and data models for performance and cost.
• Troubleshoot and improve reliability of existing pipelines.
• Collaborate with analysts and engineering teams to support data needs.

Skills

SQL

Data modeling

Data quality checks

Python

Airflow

BigQuery

Data pipelines

Observability

Russian language

English language

Education

Bachelor's degree in CS/IS or related field

Tools

Airflow

Google BigQuery

PySpark

Kafka

Job description

We are looking for a Data Engineer to join our team and help build and maintain scalable data pipelines and data warehouse solutions.

In this role, you will work with large datasets, design efficient data processing workflows, and ensure the reliability and performance of our data platform.

Since 2007, MMDSmart has been a leading supplier in cloud-based business communications, delivering game-changing IT products to businesses in over 100 countries. Our success is fueled by the inspiration and innovative ideas of our team members, encouraging their growth and impacting our Messaging and Voice solutions. These empower our clients to communicate more effectively with their customers. Don't miss this chance to excel in a rapidly expanding tech company, where your potential and ambitions are not just recognized, but celebrated.

Requirements

• Design, build, and maintain data pipelines for batch and streaming data processing;
• Develop and optimize ETL workflows using Python and SQL;
• Build and maintain Airflow DAGs for orchestration of data workflows;
• Implement data transformations and data quality checks;
• Optimize BigQuery queries and data models for performance and cost efficiency;
• Troubleshoot and improve reliability of existing pipelines;
• Collaborate with analysts and engineering teams to support data needs

You are a perfect match if you have:

• 4+ years of experience as Data Engineer;
• Strong experience with SQL and Google BigQuery;
• Experience building data pipelines and ETL processes;
• Solid knowledge of Python for data processing;
• Hands-on experience with Apache Airflow;
• Experience working with large datasets;
• Understanding of data modeling and data warehouse concepts;
• Experience with query optimization and cost-efficient data processing;
• Experience with data pipeline monitoring and observability;Lannguage knowledge: fluency in Russian and English.

Nice to have:

• Experience with Kafka or streaming data pipelines

You will primarily focus on:

• Building and maintaining data pipelines;
• Batch and streaming data processing;
• Data transformation and orchestration;
• Performance and cost optimization

Our Tech Stack

• Google BigQuery;
• Python;
• Apache Airflow;
• Apache Spark (PySpark)

The role does not involve DevOps, ML, or BI development.

Benefits

Why do talents choose and stay at MMDSmart?

Embrace the opportunity to work in a company that cares about:

• Your Wellness: Access to mental health programs, comprehensive medical insurance, and a sports card*.
• Your Happiness: Enjoy the company of cool teammates, a friendly atmosphere, a strong mentorship, and a variety of bonuses & corporate gifts.
• Your Development: Benefit from free educational events & courses, and English classes with native speakers.
• Your Career: Focus on your professional development in a supportive environment.
• Work-Life Balance: Choose your working format - remote, office-based, or hybrid and engage in team-building activities.

Equal-Opportunity Employment

We are an equal opportunity employer committed to creating a diverse and inclusive work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

• Medical Insurance and Sport Card perks are available for employees located in Bulgaria