Offer summary

(Summary generated by AI based on the full job description)

The project focuses on building and maintaining a scalable data platform for analytics and business operations. The stack includes Apache Spark, Kafka, Hive, Airflow, Docker and Kubernetes, plus Python/Java/Kotlin and SQL. Responsibilities cover designing, developing and optimizing batch and real-time pipelines, managing data warehousing, orchestrating workflows, enforcing data quality and security, monitoring and troubleshooting, and building CI/CD and automated tests. Benefits include co-funded sports activities, private medical care, life insurance, dental care and a cafeteria.

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Data Engineer

Company: COGNIZANT

from: 17 September 2026
to: 17 October 2026
160 - 200net (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:mid • senior
working mode:remote
Warszawa, Wola
Warszawa, WolaPrzyokopowa 33View on map

Requirements

Expected technologies

Hadoop
Kafka
Python
Java
Kotlin
Docker
Kubernetes

Optional technologies

AWS
Terraform

Our requirements

  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent practical experience.
  • Proven experience as a Data Engineer or in a similar data-focused engineering role.
  • Strong programming skills in Python, Java, and/or Kotlin.
  • Hands-on experience with Apache Spark, Hadoop, Kafka, Hive, Airflow, and SQL Server.
  • Strong understanding of distributed systems, data architecture, and scalable data processing frameworks.
  • Experience with software testing methodologies and automation frameworks such as PyTest or JUnit.
  • Knowledge of containerization and orchestration technologies, including Docker and Kubernetes.
  • Familiarity with modern CI/CD practices and tools.
  • Strong analytical, problem-solving, and troubleshooting capabilities.
  • Excellent communication skills and ability to work effectively in a collaborative, cross-functional environment.

Optional

  • Experience working with cloud platforms (AWS, Azure, or GCP).
  • Exposure to data lake, lakehouse, or modern data platform architectures.
  • Experience with Infrastructure as Code (Terraform, CloudFormation, or similar tools).
  • Knowledge of data security, governance, and regulatory compliance frameworks.
  • Experience supporting machine learning or advanced analytics workloads.

Your responsibilities

  • Design, develop, and maintain scalable batch and real-time data pipelines using modern data engineering technologies.
  • Build and optimize data processing solutions leveraging Apache Spark, Kafka, and distributed computing frameworks.
  • Develop and manage data warehousing solutions using Apache Hive and SQL-based technologies.
  • Implement and maintain workflow orchestration using Apache Airflow, ensuring reliability and operational excellence.
  • Establish and enforce data quality, governance, security, and compliance standards across data platforms.
  • Monitor, troubleshoot, and optimize data infrastructure, pipelines, and processing jobs to improve performance and scalability.
  • Design and execute automated testing strategies, including unit and integration testing for data workflows.
  • Develop, deploy, and manage containerized applications and data services using Docker and Kubernetes.
  • Build and maintain CI/CD pipelines to enable automated testing, deployment, and monitoring of data solutions.
  • Collaborate with data scientists, analysts, product teams, and business stakeholders to understand requirements and deliver impactful data products.
  • Document technical solutions, best practices, and operational procedures to support maintainability and knowledge sharing.
  • Drive continuous improvement initiatives focused on reliability, scalability, and operational efficiency.
Company

About the project

We are looking for a talented and motivated Data Engineer to join our growing data team. In this role, you will design, build, and maintain scalable, high-performance data platforms and pipelines that support critical business operations and analytics initiatives. You will work closely with data scientists, analysts, architects, and cross-functional stakeholders to deliver reliable, secure, and efficient data solutions in a modern, cloud-native environment.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • life insurance
  • dental care
  • cafeteria benefits

COGNIZANT

Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.

This is how we work

Data Engineer
160–200 zł / hr. (B2B)
I apply to:
COGNIZANT
Warszawa, Wola

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