Backend .NET Developer with Data Platform Experience
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Before you apply
LocationWroclaw, Dominikanski Center; Krakow
Work modehybrid
SeniorityMid
Experience3+ yrs
Company size10,000+ people
PostedOct 29, 2026 · 1w ago
Verified live3d ago
At a glanceSummarised by Seekless from the posting.
At least 3 years of commercial software development experience using C# and .NET
Experience building backend applications and APIs using ASP.NET Core
Experience designing and integrating REST APIs and distributed services
Practical experience with Microsoft Azure and cloud-based application development
Experience with relational databases (e.g. SQL Server / Azure SQL)
Knowledge of automated testing, clean code principles, design patterns and modern software architecture
Experience building or maintaining CI/CD pipelines using Azure DevOps or GitHub Actions
Commercial experience contributing to data pipelines, data transformations or data integration solutions
Hands-on experience with at least one of the following data platforms: Microsoft Fabric or Databricks
Practical experience using Python for data processing, automation or system integration
Strong SQL skills for querying, transforming and validating data
Understanding of core data engineering concepts
Ability to communicate clearly with both technical and business stakeholders
Willingness to work across backend development, system integration and data platform responsibilities
English language skills at B2 level or higher
Experience with both Microsoft Fabric and Databricks
Practical knowledge of PySpark and Apache Spark concepts
Experience with Data Factory (Microsoft Fabric or Azure) and lake storage such as OneLake, Azure Data Lake Storage Gen2 or Delta Lake
Familiarity with Unity Catalog or similar data governance capabilities
Experience with messaging and event-driven architecture, such as Azure Service Bus or Azure Event Hubs
Familiarity with containerization and orchestration using Docker or Kubernetes
Experience contributing to AI-enabled applications or data solutions
Experience using AI-assisted software development tools such as GitHub Copilot, Cursor or Claude Code
Knowledge of frontend technologies such as React or Angular
Skills
C#
.NET
ASP.NET Core
REST APIs
Microsoft Azure
Python
SQL
Azure DevOps
GitHub Actions
Microsoft Fabric
Databricks
PySpark
Apache Spark
Data Factory
OneLake
Azure Data Lake Storage Gen2
Delta Lake
Unity Catalog
Azure Service Bus
Azure Event Hubs
Docker
Kubernetes
GitHub Copilot
Cursor
Claude Code
React
Angular
About the role
As a Backend .NET Developer with Data Platform experience, you will primarily design and build modern backend applications and services using .NET and Microsoft Azure.
You will also contribute to data-driven solutions by integrating backend services with modern data platforms such as Microsoft Fabric or Databricks. This role is a good fit for an experienced backend developer who wants to broaden their experience in data engineering and work across application, integration and data platform responsibilities.
Responsibilities
You will:
•
Design, develop and maintain reliable, maintainable and well-tested backend applications and services using C#, .NET and Microsoft Azure
•
Build and integrate REST APIs, distributed services and data-driven applications
•
Integrate backend services with modern data platforms such as Microsoft Fabric or Databricks
•
Contribute to the development of data pipelines, data transformations and data integration solutions
•
Develop data processing, automation and integration logic using Python and SQL
•
Work with relational databases and modern data architectures, including data lake, lakehouse and data warehouse solutions
•
Build and maintain CI/CD pipelines using Azure DevOps or GitHub Actions
•
Work directly with technical and business stakeholders to understand and refine requirements
•
Collaborate closely with distributed project teams using Agile methodologies
•
Contribute to engineering quality through automated testing, code reviews, technical feedback and knowledge sharing
•
Contribute to AI-enabled solutions where relevant, particularly integrations between backend services, data platforms and Microsoft Azure AI services
•
Work on projects across a range of industries and business domains
.
Skills and experience
Required skills
Backend development
•
At least 3 years of commercial software development experience using C# and .NET
•
Experience building backend applications and APIs using ASP.NET Core
•
Experience designing and integrating REST APIs and distributed services
•
Practical experience with Microsoft Azure and cloud-based application development
•
Experience with relational databases (e.g. SQL Server / Azure SQL)
•
Knowledge of automated testing, clean code principles, design patterns and modern software architecture
•
Experience building or maintaining CI/CD pipelines using Azure DevOps or GitHub Actions
Data platforms and integration
•
Commercial experience contributing to data pipelines, data transformations or data integration solutions
•
Hands-on experience with at least one of the following data platforms:
•
Microsoft Fabric, including Data Factory, Lakehouse or related data workloads
•
Databricks, preferably Azure Databricks
•
Practical experience using Python for data processing, automation or system integration
•
Strong SQL skills for querying, transforming and validating data
•
Understanding of core data engineering concepts, including:
•
ETL and ELT
•
Data modelling
•
Data quality
•
Data lake, lakehouse and data warehouse architectures
•
Data governance
General
•
Ability to communicate clearly with both technical and business stakeholders
•
Willingness to work across backend development, system integration and data platform responsibilities
•
English language skills at B2 level or higher, as English is used in daily communication
Nice to have
•
Experience with both Microsoft Fabric and Databricks
•
Practical knowledge of PySpark and Apache Spark concepts
•
Experience with Data Factory (Microsoft Fabric or Azure) and lake storage such as OneLake, Azure Data Lake Storage Gen2 or Delta Lake
•
Familiarity with Unity Catalog or similar data governance capabilities
•
Experience with messaging and event-driven architecture, such as Azure Service Bus or Azure Event Hubs
•
Familiarity with containerization and orchestration using Docker or Kubernetes
•
Experience contributing to AI-enabled applications or data solutions, e.g. using Microsoft AI services or Copilot Studio
•
Experience using AI-assisted software development tools such as GitHub Copilot, Cursor or Claude Code
•
Knowledge of frontend technologies such as React or Angular
.