Mid/Senior Data Engineer
B2B Contract 16 500 - 26 500 PLN + VAT
Get to know us better
CodiLime is a software and network engineering industry expert and the first-choice service partner for top global networking hardware providers, software providers, and telecoms. We create proofs-of-concept, help our clients build new products, nurture existing ones, and provide services in production environments. Our clients include both tech startups and big players in various industries and geographic locations (US, Japan, Israel, and Europe).
While no longer a startup, we have 250+ people on board and have been operating since 2011. We’ve kept our people-oriented culture. Our values are simple:
Act to deliver.
Disrupt to grow.
Team up to win.
The project and the team
The project is divided into two main parts:
A cloud-based platform for data visualization
A large-scale dataset combining information from over 10 different data sources
You will spend approximately 70% of your time on data processing activities, contributing to the continuous improvement of the large dataset. The remaining 30% will focus on maintaining the platform, working with the API, and ensuring proper integration with the latest version of the dataset.
The goal of the project is to build a centralized, large-scale business data platform for one of the biggest global consulting firms. The final dataset must be enterprise-grade, providing consultants with reliable, easily accessible information to help them quickly and effectively analyze company profiles during Mergers & Acquisitions (M&A) projects.
You will contribute to building data pipelines that ingest, clean, transform, and integrate large datasets from more than 10 different data sources, resulting in a unified database containing over 300 million company records. The data must be accurate, well-structured, and optimized for low-latency querying. The dataset will power several internal applications, enabling a robust search experience across massive datasets and making your work directly impactful across the organization.
The data will provide firm-level and site-level information, including firmographics, technographics, and hierarchical relationships (e.g., GU, DU, subsidiary, site). This platform will serve as a key data backbone for consultants, delivering critical metrics such as revenue, CAGR, EBITDA, number of employees, acquisitions, divestitures, competitors, industry classification, web traffic, related brands, and more.
Technology stack:
Languages: Python, SQL
Data Stack: Snowflake + DBT
Workflow Orchestration: Apache Airflow (extensive use of complex DAGs)
Data Processing: Apache Spark on Azure Databricks
Cloud Environment:
- AWS (EKS, S3, Lambda, ECR, EMR, Opensearch) - Platform
- Azure (AKS, Blob Storage, Azure Functions, ACR, Databricks, Azure AI Search)
- DatasetCI/CD: GitHub Actions
Future Direction - AI & Advanced Automation
- Building Agentic AI systems
- Working with frameworks such as LangChain and cloud-native AI libraries
- Integrating Azure OpenAI servicesAPI: API Gateway, FastAPI (REST, async)
What else you should know:
Team Structure:
- Data Architecture Lead
- Data Engineers
- Backend Engineers
- DataOps Engineers
- Frontend Engineer
- Product OwnerWork culture:
- Agile, collaborative, and experienced work environment.
- As this project will significantly impact the organization, we expect a mature, proactive, and results-driven approach.
- You will work with a distributed team across Europe and India.
We work on multiple interesting projects at the same time, so it may happen that we’ll invite you to the interview for another project if we see that your competencies and profile are well suited for it.
Your role
As a part of the project team, you will be responsible for:
Data Pipeline Development
- Designing, building, and maintaining scalable, end-to-end data pipelines for ingesting, cleaning, transforming, and integrating large structured and semi-structured datasets
- Optimizing data collection, processing, and storage workflows
- Conducting periodic data refresh processes (through data pipelines)
- Building a robust ETL infrastructure using SQL technologies.
- Assisting with data migration to the new platform
- Automating manual workflows and optimizing data deliveryData Transformation & Modeling
- Developing data transformation logic using SQL and DBT for Snowflake.
- Designing and implementing scalable and high-performance data models.
- Creating matching logic to deduplicate and connect entities across multiple sources.
- Ensuring data quality, consistency, and performance to support downstream applications.Workflow Orchestration
- Orchestrating data workflows using Apache Airflow, running on Kubernetes.
- Monitoring and troubleshooting data pipeline performance and operations.
Data Platform & Integration
- Enabling integration of 3rd-party and pre-cleaned data into a unified schema with rich metadata and hierarchical relationships.
- Working with relational (Snowflake, PostgreSQL) and non-relational (Elasticsearch) databases
Software Engineering & DevOps
- Writing data processing logic in Python.
- Applying software engineering best practices: version control (Git), CI/CD pipelines (GitHub Actions), DevOps workflows.
- Ensuring code quality using tools like SonarQube.
- Documenting data processes and workflows.
- Participating in code reviews
Future-Readiness & Integration
- Preparing the platform for future integrations (e.g., REST APIs, LLM/agentic AI).
- Leveraging Azure-native tools for secure and scalable data operations
Being proactive and motivated to deliver high-quality work,
Communicating and collaborating effectively with other developers,
Maintaining project documentation in Confluence.
Do we have a match?
As a Data Engineer, you must meet the following criteria:
Strong experience with Snowflake and dbt (must-have). You will spend approximately 70% of your time working with dbt, SQL, Snowflake, and Airflow.
Strong SQL skills, including experience with query optimization
Experience with orchestration tools like Apache Airflow, Azure Data Factory (ADF), or similar
Experience with Docker, Kubernetes, and CI/CD practices for data workflows
Experience in working with large-scale datasets
Very good understanding of data pipeline design concepts and best practices
Experience with data lake architectures for large-scale data processing and analytics
Very good coding skills in Python
- Ability to write clean, scalable, and testable code (including unit tests)
- Understanding and applying object-oriented programming (OOP)
Experience with version control systems: Git
Good knowledge of English (minimum C1 level)
Beyond the criteria above, we would appreciate the nice-to-haves:
Experience with data processing frameworks, such as Apache Spark (ideally on Azure Databricks)
Experience with GitHub Actions for CI/CD workflows
Experience with API Gateway, FastAPI (REST, async)
Experience with Azure AI Search or AWS OpenSearch
Familiarity with designing and developing ETL/ELT processes (a plus)
Optional but valuable: familiarity with LLMs, Azure OpenAI, or Agentic AI systems
More reasons to join us
Flexible working hours and approach to work: fully remote, in the office, or hybrid
Professional growth supported by internal training sessions and a training budget
Solid onboarding with a hands-on approach to give you an easy start
A great atmosphere among professionals who are passionate about their work
The ability to change the project you work on
- Department
- Observability Division
- Locations
- Poland
- Remote status
- Fully Remote
- Level
- Senior, Mid