Senior Full Stack Engineer - React, ASP.NET Core

Artmac

United States · Contract · Mid-Senior

Who We Are

Artmac Soft is a technology consulting and service-oriented IT company dedicated to providing innovative technology solutions and services to Customers.

Job Description

Job Title : Senior Full Stack Engineer – React, ASP.NET Core

Job Type : C2C

Experience : 9 – 17 years

Location : Redmond, Washington

Responsibilities

Frontend Development:

Design and develop high-performance, reusable UI components using React, JavaScript, TypeScript, jQuery, and CSS
Implement component-driven architecture and optimize rendering to minimize re-renders and improve application performance
Manage complex application state using Redux, Context API, and React Query
Integrate frontend workflows with RESTful APIs, handling complex data transformations and caching strategies
Ensure cross-browser compatibility, accessibility, and responsive design best practices

Backend Development

Design and build scalable backend services using ASP.NET Core and C#
Implement clean architecture principles, modular service boundaries, and separation of concerns
Develop secure, high-throughput REST APIs with advanced routing, versioning, and request pipeline customization
Integrate authentication and authorization using OAuth and secure API connectors
Collaborate with database teams to design and optimize SQL Server schemas and queries

Required Experience &Skills

Strong experience with ReactJS, JavaScript, TypeScript, Redux, Context API, and CSS
Hands-on experience with ASP.NET / .NET Core and C#
Proven experience developing and consuming RESTful APIs
Experience with SQL Server and relational database design
Experience with Git and collaborative version control workflows
Experience with API gateways or API management tools
Knowledge of OAuth, secure API connectors, and authentication flows
Experience with CI/CD pipelines and modern development workflows
Solid understanding of frontend performance optimization and backend scalability
Familiarity with advanced SQL performance tuning
Exposure to cloud platforms (Azure, AWS, or GCP)
Collaborate closely with backend, frontend, design, and product teams to deliver end-to-end features
Align frontend data models with backend workflows and enterprise systems
Troubleshoot and resolve integration, performance, and scalability issues

Qualification

Bachelor's degree or equivalent combination of education and experience.

Key Skills

Ranked by relevance

react sql javascript typescript sql server server oauth responsive design restful apis responsive reactjs jquery cloud cicd git aws ui

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