Data Migration Developer with .NET @ CSHARK Sp. z o.o.
3 days ago
The Essentials We're Seeking Over 4 years of commercial programming experience with .NET, C#. Strong understanding of software architecture principles and backend design patterns (e.g., dependency injection, repository, mediator, factory). Exposure to cloud environments (ideally Azure) and understanding of infrastructure and services. Fluency in English and Polish (minimum B2+) - a must. Hands-on experience with CQRS and Domain-Driven Design (DDD), including aggregates, entities, value objects, and bounded contexts. Understanding of Event Sourcing concepts - including event stores, event replay, and how to model state changes as immutable domain events. Solid knowledge of clean architecture and separation of concerns. Experience with PostgreSQL and modern ORM frameworks (e.g. Entity Framework or equivalent). Exposure to CosmosDB or similar NoSQL/document databases. Experience designing and consuming RESTful APIs. Familiarity with Docker for local development and deployments. We are looking for a Senior Data Migration Developer with .NET to join our engineering team and help build a cutting-edge solution for our client, a company that designs, builds, and operates advanced registry systems. In this role, you will focus on designing and implementing robust data migration and backend processes, ensuring high performance, scalability, and data integrity. You will work on a project leveraging modern architectures and technologies such as C#, .NET 9, modular monolith, DDD, CQRS, Event Sourcing and Azure. IN SHORT: 🌎 100% remote or from the office (Wrocław, Bielsko-Biała) - You choose 💰 120 - 150 PLN/h ☑️ B2B contract 💻 >4 years of commercial programming experience ,[Designing, implementing, and optimizing backend services for data migration and transformation. , Building clean, scalable, and maintainable solutions aligned with CQRS and DDD principles. , Developing tools and scripts for data import/export, validation, and reconciliation. , Collaborating closely with cross-functional teams to ensure smooth data migration and integration with existing systems. , Writing clear, testable, and well-documented code with strong attention to performance and reliability. , Participating in code reviews and contributing to architectural and design discussions. , Supporting other developers and sharing knowledge within the team. , Working in an Agile SCRUM environment, taking part in sprint planning, stand-ups, and retrospectives. ] Requirements: .NET, C#, DDD, CQRS, Event Sourcing, Azure, Design Patterns, Cloud, Domain-driven design, Clean Architecture, PostgreSQL, ORM, Entity Framework, Cosmos DB, NoSQL, REST API, Docker
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.NET Developer @ CSHARK Sp. z o.o.
2 weeks ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full timeAt least 4 years of experience in .NET development. Experience with MS SQL, NoSQL databases, and ElasticSearch. Ability to build applications using microservice architecture, with an understanding of its concepts, benefits, and drawbacks. Experience with cloud solutions (AWS).
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.NET WinForms Developer @ CSHARK Sp. z o.o.
7 days ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We're Seeking 5+ years of hands-on experience developing desktop applications in C#/.NET (preferably .NET 8). Strong expertise in Windows Forms. Proven experience building custom UI controls from scratch (inheriting from base controls and implementing custom rendering – not configuring DevExpress/Telerik/Infragistics). Experience...
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.NET WinForms Developer @ CSHARK Sp. z o.o.
2 weeks ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We're Seeking 5+ years of experience in C#/.NET (preferably .NET 8). Strong expertise in Windows Forms and UI customization. Solid understanding of asynchronous, multi-threaded, and event-driven programming. Experience with custom control development (charts, grids, real-time visualization). Familiarity with TCP/socket communication...
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Product Designer @ CSHARK Sp. z o.o.
5 days ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full time5+ years of experience as a UX/product designer or similar role. Expertise in creating native mobile services and web applications. Proficiency in Figma as the key product design and prototyping tool. Excellent communication and interpersonal skills including the ability to present design concepts to stakeholders and senior executives. Experience in...
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Technical Lead
2 weeks ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We're Seeking 8+ years of professional C#/.NET experience, including Windows Forms and custom control development. Deep understanding of multi-threaded, low-latency UI design. Experience with real-time data visualization (charts, grids, multi-window apps). Comfortable with SVN, TCP/IP, and Windows desktop optimization. Strong...
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Technical Lead
7 days ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We're Seeking 8+ years of professional experience in C#/.NET with strong focus on Windows Forms. Proven ability to build custom UI controls from scratch (inheriting base controls and implementing custom rendering, not configuring DevExpress/Telerik). Hands-on experience with continuous real-time data streaming to the UI (data...
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Product Designer @ CSHARK Sp. z o.o.
5 days ago
Remote, Wrocław, Bielsko-Biała, Czech Republic CSHARK Sp. z o.o. Full time8+ years of experience in Product Design / UX/UI, ideally within FinTech or other data-intensive B2B SaaS products. Proven experience in building or maintaining design systems at scale. Strong collaboration and communication skills – ability to work closely with Product, Engineering, and Business stakeholders. Analytical mindset and ability to translate...
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Solution Architect
1 day ago
Remote, Wrocław, Bielsko - Biała, Czech Republic CSHARK Sp. z o.o. Full timeProven Solution Architect experience, ideally in SaaS environments, delivering complex solutions. Expertise in cloud-native technologies, distributed systems, and event-driven architectures. Hands-on knowledge of integration patterns, web-based security (e.g., OAuth2, OIDC, PKI), and application portfolio management. Strong skills in software architecture,...
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DevOps Engineer @ CSHARK Sp. z o.o.
2 weeks ago
Remote, Wrocław, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We’re Seeking 3+ years of commercial experience as a DevOps or Cloud Engineer. Strong expertise in AWS or Azure cloud platforms (compute, networking, storage, databases). Hands-on experience with CI/CD tools such as Azure DevOps, GitLab CI, or GitHub Actions. Solid understanding of Docker and Kubernetes concepts. Experience...
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Mid Manual QA @ CSHARK Sp. z o.o.
2 weeks ago
Remote, Czech Republic CSHARK Sp. z o.o. Full timeThe Essentials We’re Seeking 4+ years of experiencetesting web applications. ISTQB certification. Strong skills in test case design, requirements analysis, and applying test methodologies described in the ISTQB syllabus. Experience in preparing test plans, understanding test patterns, and contributing to team-wide quality strategies. Ability to...