Senior Software Engineer (Remote)

Job Summary

The Senior Software Engineer is a focused, mid-level professional who develops and maintains Sentinel U's learning platform using modern web technologies across the full stack.

Essential Accountabilities

• Design, develop, and maintain scalable web applications using React/TypeScript frontend and .NET backend
• Build RESTful APIs using ASP.NET Core and integrate with cloud services
• Implement responsive UI components using modern React patterns and component libraries
• Write unit and integration tests to ensure code quality and reliability
• Collaborate with cross-functional teams to deliver features
• Participate in code reviews and maintain coding standards
• Troubleshoot and debug production issues
• Contribute to infrastructure-as-code and cloud deployment pipelines
  
  

Qualifications

The requirements listed below represent the knowledge, skills, and/or abilities required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job.

Education

Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent practical experience.

Required Qualifications

• 5-10 years of professional software development experience
• Strong proficiency in React and TypeScript
• Solid experience with C# and .NET (ASP.NET Core)
• Experience with modern frontend build tools (Vite preferred)
• Experience with state management libraries (Redux Toolkit or similar)
• Knowledge of RESTful API design and development
• Experience with relational databases (PostgreSQL preferred)
• Experience with Entity Framework Core or similar ORMs
• Understanding of authentication/authorization patterns (JWT)
• Experience with version control systems (Git)
• Strong problem-solving and debugging skills
• Good communication skills and the ability to work in a team environment
  
  

Preferred Qualifications

• Experience with AWS services (S3, ECS, DynamoDB, CloudWatch, Lambda)
• Infrastructure-as-code experience (AWS CDK or Terraform)
• Experience with Docker and containerized deployments
• Experience with modern testing frameworks (Vitest, Playwright, React Testing Library)
• Experience with UI component libraries (Ant Design, DevExtreme)
• Experience with Storybook for component development
• Familiarity with SCSS/Sass for styling
• Experience with React Hook Form and form validation (Zod)
• Experience with Chart.js or similar data visualization libraries
• Knowledge of Stripe integration for payment processing
• Experience with Serilog or similar structured logging frameworks
• CI/CD pipeline experience (Bitbucket Pipelines or similar)
• Understanding of microservices architecture patterns
  
  

Technical Stack

Frontend

• React 18, TypeScript, Vite
• Redux Toolkit, React Router
• Ant Design, DevExtreme
• SCSS/Sass
• Vitest, Playwright, Storybook
  
  

Backend

• .NET 9.0, C#, ASP.NET Core Web API
• Entity Framework Core, PostgreSQL
• AWS Services (S3, ECS, DynamoDB, CloudWatch, Lambda)
• JWT Authentication, Serilog
  
  

Infrastructure & DevOps

• AWS CDK (TypeScript), Docker
• Bitbucket Pipelines
  
  

Education

Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent practical experience.