Senior Data Engineer (with Backend Experience)

CodiLime

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profile Job Location:

Warszawa - Poland

profile Monthly Salary: Not Disclosed
Posted on: 6 hours ago
Vacancies: 1 Vacancy

Job Summary

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 weve kept our people-oriented culture. Our values are simple:

  • Act to deliver.

  • Disrupt to grow.

  • Team up to win.

The project and the team

You will work on a large-scale data platform built for a global consulting firm supporting M&A (Mergers and Acquisitions) analysis.

The project consists of:

  • A cloud-based platform for data visualization (APIs and services)

  • A large integrated dataset (300M company records from 10 sources)

Your primary focus will be on data engineering (approx. 80%) including building and improving data pipelines and dataset quality. Additionally you will contribute to backend and platform development (approx. 20%) including features APIs and integration with the data layer.

Technology stack:

  • Languages: Python SQL

  • Data: Snowflake dbt

  • Workflow Orchestration: Apache Airflow (complex DAGs)

  • Data Processing: Apache Spark - Platform

  • Cloud:

    • AWS (EKS S3 Lambda ECR EMR Opensearch) - Platform

    • Azure (AKS Blob Storage Azure Functions ACR Databricks AI Search) - Dataset

  • API: API Gateway FastAPI (REST async)

  • CI/CD: GitHub Actions

  • Data Scale: 300M records across multiple sources

  • Future Direction:

    • Agentic AI systems

    • LangChain and cloud-native AI libraries and frameworks

    • Azure OpenAI integration

What else you should know:

  • Team: Data Architecture Lead Data Engineers DataOps Engineers Frontend Engineer Backend Engineer Product Owner

  • Distributed team across Europe and India

  • Agile collaborative proactive and impact-driven environment

We work on multiple projects at the same time so we may suggest a different project if it better matches your experience and profile.

Your role

This is a hybrid role combining Data Engineering and Backend Engineering with a stronger focus on the data layer.

You will:

  • Build and maintain scalable ETL/data pipelines (Python SQL dbt Snowflake Airflow)

  • Design and optimize data models transformations and workflows

  • Ensure data quality consistency and performance

  • Integrate multiple data sources into a unified dataset

  • Contribute to backend development (APIs data access layer backend-frontend contracts)

  • Support platform integrations and cloud-based solutions

  • Write clean testable code and participate in code reviews

  • Document data processes and system architecture

Do we have a match

As a Senior Data Engineer you must meet the following criteria:

  • Strong experience with Snowflake and dbt

  • Strong Python skills

    • Ability to write clean scalable and testable code (including unit tests)

    • Solid understanding and applying object-oriented programming (OOP)

  • Experience with version control systems: Git

  • Experience with AWS or Azure

  • Good knowledge of English (minimum C1 level)

Beyond the criteria above we would appreciate the nice-to-haves:

  • Experience with Apache Spark (preferably Databricks)

  • Experience with Azure AI Search or AWS OpenSearch

  • Experience designing ETL/ELT pipelines

  • Familiarity with LLMs Azure OpenAI or agentic AI systems

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

Get to know us betterCodiLime 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 ser...
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