Senior .NET Fullstack Developer; React​/EF Core | Talent Pool

About HYSRTech: HYSRTech is a technology consultancy focused on speeding up the digital transformation of major market players. We specialize in strategic Staff Augmentation
, connecting high-performance talent with projects that demand technical excellence and agility.

We are looking for a Fullstack Developer with solid experience in the Microsoft ecosystem and modern JavaScript frameworks. You will join high-level squads, developing scalable, resilient, and performance-oriented systems for global-scale clients.

• Develop and maintain end-to-end web applications using .NET (C#) on the backend and React on the frontend.
• Model and manage relational databases using Entity Framework Core and SQL Server.
• Implement and optimize non-relational storage solutions (No
  
  SQL).
• Ensure code quality through automated testing and architectural best practices (Clean Architecture, DDD).
• Collaborate with multidisciplinary teams in an Agile environment (Scrum/Kanban).
• Contribute to the technical evolution of both HYSRTech and the partners where you are assigned.

• Solid experience with .NET Core / .NET 5+.
• Proficiency in React.js (Hooks, Context API, Redux, or state management libraries).
• Advanced experience with EF Core (Migrations, LINQ, Performance Tuning).
• Strong knowledge of T-SQL (SQL Server):
  Stored Procedures, Views, and Query Optimization.
• Familiarity with No
  
  SQL databases (Mongo
  
  DB, Redis, Cosmos
  
  DB, or similar).
• Proficiency in RESTful APIs and version control (Git).

• Knowledge of Azure or AWS cloud environments.
• Experience with Docker and Kubernetes.
• Experience with messaging systems (Rabbit
  
  MQ, Kafka, or Azure Service Bus).
• Intermediate/Advanced English (for global project collaboration).

• Work Model: 100% Remote.
• Contract Type:
  Contractor or Full-time.
• Payment & Onboarding:
  Managed via Deel (supporting local currency payments and compliance).
• Opportunity to work on projects for large national and international companies.

Visa Sponsorship Disclosure: Please note that HYSRTech does not provide visa sponsorship for this position. Applicants must be legally authorized to work in their current country of residence at the time of application.