Full Stack Software Engineer (React & .NET)

About the role

HALA is seeking a Full Stack Software Engineer to join its engineering team. The role focuses on building modern, scalable fintech web applications using React on the front‑end and .NET/C# on the back‑end. You will work closely with product, design, QA and other engineering teams in a fast‑paced environment.

Key responsibilities

• Develop and maintain web applications with React, TypeScript, JavaScript, HTML and CSS.
• Create reusable, scalable React components and manage state using Redux, React Query, Zustand or Context API.
• Integrate front‑end features with RESTful APIs and backend services.
• Build, maintain and enhance backend services using .NET, C# and ASP.NET Core.
• Design and implement APIs and work with relational databases such as PostgreSQL, SQL Server or MySQL.
• Participate in technical discussions, code reviews and architecture decisions.
• Troubleshoot and resolve production and non‑production issues across both layers.
• Ensure high standards of performance, security, reliability, accessibility and maintainability.

Required profile

• Product‑mindset with a focus on quality and clean engineering practices.
• Comfortable working in a fast‑paced fintech environment.
• Collaborative attitude, able to work with product managers, designers, QA and other engineers.

Required skills

• React, TypeScript, JavaScript, HTML5, CSS3.
• State‑management tools such as Redux, React Query, Zustand or Context API.
• .NET, C#, ASP.NET Core.
• Experience with RESTful API design and consumption.
• Relational databases: PostgreSQL, SQL Server, MySQL.
• Version control with Git and CI/CD pipelines.
• Testing, monitoring and documentation best practices.