Mid/Senior Data Engineer

Warszawa, Poland

⚠️ We'll shut down after Aug 1st - try foo🦍 for all jobs in tech ⚠️

CodiLime

CodiLime is an expert company in building and deploying networking solutions & software development. Capitalize on 11 years of our experience.

View all jobs at CodiLime

Apply now Apply later

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, 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 goal of this 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 over 10 different data sources, resulting in a unified database with more than 300 million company records. The data must be accurate, well-structured, and optimized for low-latency querying. The platform 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, PostgreSQL, Elasticsearch
  • Processing: Apache Spark on Azure Databricks
  • Workflow Orchestration: Apache Airflow
  • Cloud Platform: Microsoft Azure
    - Compute / Orchestration: Azure Databricks (Spark clusters), Azure Kubernetes Service (AKS), Azure Functions, Azure API Management.
    - Database & Storage: Azure Database for PostgreSQL, Azure Cosmos DB, Azure Blob Storage
    - Security & Configuration: Azure Key Vault, Azure App Configuration, Azure Container Registry (ACR)
    - Search & Indexing: Azure AI Search
  • CI/CD: GitHub Actions
  • Static Code Analysis: SonarQube
  • AI Integration (Future Phase): Azure OpenAI

What else you should know:

Team Structure:

  • Data Architecture Lead
  • Data Engineers
  • Backend Engineers
  • DataOps Engineers
  • Product Owner

Work 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 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 delivery

Data 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)
  • Experience with data processing frameworks, such as Apache Spark (ideally on Azure Databricks)
  • Experience with orchestration tools like Apache Airflow, Azure Data Factory (ADF), or similar
  • Experience with Docker, Kubernetes, and CI/CD practices for data workflows
  • Strong SQL skills, including experience with query optimization
  • Experience in working with large-scale datasets
  • Very good understanding of data pipeline design concepts and approaches
  • Experience with data lake architectures for large-scale data processing and analytics
  • Very good coding skills in Python
    - Writing clean, scalable, and testable code (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 PostgreSQL (ideally Azure Database for PostgreSQL)
  • 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 developing ETL/ELT processes (a plus)
  • Optional but valuable: familiarity with LLMs, Azure OpenAI, or Agentic AI system


More reasons to join us

  • Flexible working hours and approach to work: fully remotely, 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
Apply now Apply later

* Salary range is an estimate based on our AI, ML, Data Science Salary Index 💰

Job stats:  1  0  0
Category: Engineering Jobs

Tags: Agile Airflow APIs Architecture AWS Azure CI/CD Classification Confluence Consulting Cosmos DB Databricks DataOps Data pipelines Data quality dbt DevOps Docker Elasticsearch ELT Engineering ETL FastAPI Git GitHub Kubernetes LLMs OOP OpenAI OpenSearch Pipelines PostgreSQL Python Security Snowflake Spark SQL

Perks/benefits: Career development Flex hours Startup environment

Regions: Remote/Anywhere Europe
Country: Poland

More jobs like this