Senior Full-Stack Developer (.Net + React)

Project Description:

We are seeking a talented and motivated Software Engineer with a strong focus on C# and React to join our team. The ideal candidate will have extensive experience working on cloud-hosted APIs, backend services, and web application technologies. You will be responsible for designing, developing, and maintaining both existing front-end and back-end components, as well as creating new applications and APIs hosted in Azure. You will play a critical role in ensuring the performance, reliability, and quality of our software products at the bank, as well as building new applications and features.

Responsibilities:

• Back-End Development: Developing server-side logic using .NET technologies, creating REST APIs, and integrating with databases.

• Front-End Development: Building rich user interfaces using React 18+ and ensuring a stable, performant, and responsive user experience.

• Full Stack Integration: Ensuring seamless integration between front-end and back-end components.

• Code Quality: Writing clean, maintainable, and efficient code following best practices and coding standards, utilizing AI coding assistants.

• Testing: Create and expand unit and integration tests for both frontend and backend code.

• Continuous Improvement: Staying up to date with the latest industry trends and technologies with a growth mindset of continuously improving skills and knowledge.

• Deployments: ensure stability through frequent and automated deployments.

• Production stability: Assist with L3 production support/issue investigation and remediation.

• Strong understanding of software testing principles, methodologies, and tools.

• Proficiency in analyzing, debugging, and solving technical issues.

• Team player with excellent communication skills to work effectively with cross-functional teams and business stakeholders.

Mandatory Skills Description:

• React / TypeScript: Strong experience with 18+ and its core principles, including state management, hooks, and component lifecycle. Experience with Vite, TanStack, and Tailwind CSS

• C# .NET: Solid understanding of .NET Core (8+), including ASP.NET Core, Signal R, EF Core, and concurrency via multithreading and async/await patterns.

• Azure: Experience creating/deploying/troubleshooting App Services such as Web Apps and Functions (AZ Signal R nice to have).

• Relational Database Knowledge: Experience with SQL databases, such as SQL Server or Sybase.

• Unit Testing: TDD-driven development with XUnit, NUnit, and/or Jest/Vitest.

• Problem-Solving Skills: Strong analytical and problem-solving abilities with the ability to independently investigate/evaluate new technologies/libraries.

(Opportunity for Poland-based candidates)

Benefits:

💼 Tax-deductible costs on a contract of employment for all development roles

🔒 Stable employment based on an employment contract

🩺Private Medical & Dental care & Life Insurance

💰 Paid Referrals

🏋🏽 MyBenefit program (sports card, well-being program etc.)

🌎 Internal Mobility program - possibility of rotation between projects, locations, accounts

🎓 LuxTalent platform (webinars, training, courses)