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Technical Lead (.NET + React)

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Cshark

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Location:
Poland

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Category:
IT - Software Development

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Contract Type:
B2B

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Salary:

150.00 - 190.00 PLN / Hour
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Job Description:

We are looking for a Technical Lead (Fullstack: .NET + React) to join our team and support the development of a modern application for our international client in the FinTech industry, delivering solutions for banks and financial institutions. We are seeking a hands-on engineering leader who feels confident in both backend development with .NET and frontend development using React and TypeScript, and who can guide a cross-functional team toward technical excellence.

Job Responsibility:

  • Ensuring that deliverables produced by the Scrum team are well designed, well implemented, and thoroughly tested, following best practices in coding standards, automation, integration, testing, and security
  • Leading, mentoring, and supporting engineers while fostering a fully agile, high-quality, and collaborative team culture
  • Helping teammates solve technical challenges through knowledge sharing and technical guidance
  • Translating project requirements into achievable Sprint commitments with your full-stack cross-functional team
  • Supporting the creation of client-facing delivery plans and taking ownership of their technical execution
  • Contributing to architectural discussions and ensuring alignment with clean code, domain-driven, and scalable engineering principles

Requirements:

  • 5+ years of commercial experience with .NET, C#, React, and TypeScript (stronger backend experience is acceptable)
  • Proven experience leading engineering teams or acting as a technical lead/lead developer
  • Strong understanding of software architecture principles and backend design patterns (dependency injection, repository, mediator, factory, etc.)
  • Hands-on experience with CQRS and Domain-Driven Design (DDD), including aggregates, entities, value objects, and bounded contexts
  • Understanding of Event Sourcing – event stores, event replay, and modeling immutable domain events
  • Solid knowledge of clean architecture and separation of concerns
  • Exposure to cloud environments, ideally Azure, and understanding of cloud infrastructure and services
  • Practical experience with PostgreSQL and ORM frameworks such as Entity Framework (or equivalent)
  • Exposure to CosmosDB or other NoSQL/document databases
  • Experience designing and consuming RESTful APIs
  • Familiarity with Docker for development and deployment workflows
  • Fluency in English and Polish (B2+)

Nice to have:

  • Hands-on experience with microservices and distributed systems
  • Exposure to message brokers (e.g., RabbitMQ, Kafka)
  • Experience contributing to SDLC processes within agile or iterative teams
  • A degree in Computer Science, Software Engineering, or a related field
  • Familiarity with modern testing frameworks and automation strategies
What we offer:
  • 100% remote work
  • Flexible hours
  • International projects
  • Business english lessons
  • Participation in charity actions
  • In-house technology workshops

Additional Information:

Job Posted:
December 08, 2025

Work Type:
Remote work
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