.NET developer for enterprise integrations

emagine; Warszawa; Vor Ort; PLN 180.000 - 240.000; Vollzeit

Zusammenfassung

emagine seeks a Senior .NET Developer to own a risk-critical enterprise integration platform consolidating shipment, status events, and customs data across systems. You will work on backend services, batch processing, SQL Server optimization, and modernisation of an established .NET Framework solution.

Responsibilities include maintaining Windows Services, WCF/SOAP integrations, and data mappings, while contributing to testing, reviews, and cross-team collaboration.

Qualifikationen

• 5+ years of professional experience as a .NET Developer / Software Engineer.
• Strong hands-on experience with C# and .NET Framework 4.x.
• Experience developing and maintaining Windows Services.
• Strong understanding of multithreading and the Task Parallel Library.
• Very good knowledge of Microsoft SQL Server and T-SQL.
• Experience with DI / IoC frameworks.
• Experience with unit testing and mocking frameworks.
• Git experience.
• Strong English communication skills.

Aufgaben

• Maintain and extend an established C# / .NET Framework Windows Service.
• Support multi-threaded, timer-driven import and export processing.
• Investigate and resolve production issues across application and data layers.
• Develop and optimise SQL Server / T-SQL solutions.
• Maintain stored procedures and Dapper-based repositories.
• Analyse locking, deadlocks and performance issues.
• Maintain mappings between enterprise canonical data models.
• Work with shipment, status event, milestone and customs data.
• Maintain WCF / SOAP integrations, service references, bindings and endpoints.
• Work with XML, XSD schemas and XSLT mappings.
• Provide 2nd and 3rd line production support.
• Reprocess and correct data when required.
• Collaborate with business, operations, integration and master data teams.
• Contribute to unit/integration testing, code reviews and documentation.
• Support the modernisation roadmap and potential migration to REST-based integrations.

Kenntnisse

C#

NET Framework 4.x

Windows Services

Multithreading / TPL

SQL Server / T-SQL

DI / IoC

Unit testing / mocking

Git

English communication

Tools

WCF

AutoMapper

Dapper

Azure Functions / App Services

Docker / Kubernetes

Jobbeschreibung

We are looking for an experienced Senior .NET Developer to take ownership of a business-critical enterprise integration platform responsible for consolidating shipment, status event and customs declaration data from multiple transport management systems. The role combines backend development, batch processing, SQL Server optimisation, enterprise integrations and production support, with an additional opportunity to contribute to the future modernisation of an established .NET Framework solution.

Задаки:

• Maintaining and extending an established C# / .NET Framework 4.x Windows Service.
• Supporting multi-threaded, timer-driven import and export processing.
• Investigating and resolving production issues across application and data layers.
• Developing and optimising SQL Server / T-SQL solutions.
• Maintaining stored procedures and Dapper-based repositories.
• Analysing and resolving locking, deadlock and performance issues.
• Maintaining mappings between enterprise canonical data models.
• Working with shipment, status event, milestone and customs declaration data.
• Maintaining WCF / SOAP integrations, service references, bindings and endpoints.
• Working with XML serialisation, XSD schemas and XSLT mappings.
• Providing 2nd and 3rd level production support.
• Reprocessing and correcting data when required.
• Working closely with business, operations, integration and master data teams.
• Contributing to unit and integration testing, code reviews and technical documentation.
• Supporting the modernisation roadmap of the platform.
• Contributing to potential migration towards modern .NET, standard Dependency Injection and REST-based integrations.

Требования:

• 5+ years of professional experience as a .NET Developer / Software Engineer.
• Strong hands-on experience with C# and .NET Framework 4.x.
• Experience developing and maintaining Windows Services.
• Strong understanding of multithreading and the Task Parallel Library.
• Very good knowledge of Microsoft SQL Server and T-SQL.
• stored procedures query tuning transactions isolation levels locking deadlock analysis
• Hands-on experience with WCF and SOAP services.
• Experience configuring service references, bindings and endpoints.
• Good knowledge of XML, XSD and XSLT.
• Experience with object mapping tools such as AutoMapper.
• Familiarity with lightweight ORMs such as Dapper.
• Experience with Dependency Injection / IoC frameworks.
• Experience with unit testing and mocking frameworks.
• Git experience.
• Strong analytical and troubleshooting skills.
• Very good English communication skills.

Будет плюсом:

• Experience with freight forwarding, transport or logistics systems
• Experience working with shipment, milestone or customs-related data
• Experience modernising legacy .NET Framework applications
• Knowledge of Worker Services
• Experience with Microsoft Azure services such as Azure Functions or App Services
• Docker and Kubernetes experience
• Agile / Scrum experience

Условия:

B2B Contract, up to 12 months + possible extensions