Technical Lead (.NET + React) Jobs

Cshark

Location:
Poland

Category:
IT - Software Development

Contract Type:
B2B

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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Technical Lead (.NET + React)