Full Stack Engineer

We operate an integrated enterprise platform CRM, project and portfolio delivery, and financial workflows built on a SQL Server data core, a Node.js/Express API, a React web application, and a React Native mobile companion. It runs entirely on premises in a secure, offline Windows environment. You will take end-to-end ownership of this platform: evolving the database schema safely, extending the API and web application, hardening security, and running disciplined script-based deployments. This is a full-ownership generalist role for an engineer who is genuinely strong on databases and comfortable operating software in a locked-down environment not a feature-factory position Desired Candidate Profile 10+ years of technical experience in designing, developing and maintaining programs and applications from front end to back end. Working with front-end frameworks such as React, Angular, or Vue.js. Building and integrating back-end services, APIs, and databases. RESTful endpoints in Express, with robust database access, connection-pool resilience, request validation, and server-side error handling. Using REST APIs or GraphQL to connect front-end and back-end systems. Working with databases such as SQL Server, PostgreSQL or MySQL. Working on Schema design and safe evolution of a substantial relational model, including migration scripting and preservation of the platform's data-integrity and audit guarantees. Good experience on React + TypeScript features from UI through hooks to API client, with disciplined layering and maintainable component architecture. Working on maintaining Security posture. Authentication, session handling, role-based access control enforced server-side, and secure-coding practice across the stack Full experience of Deployment and operations. Manual, script-based releases on Windows Server scheduled tasks, service management, and a vet-then-bundle dependency discipline (no runtime internet; all assets local and vetted at build time).

Skills

• Front-end: HTML, CSS, JavaScript, React + TypeScript
• React 18, Vite, server-state management (React Query/TanStack), typed forms and validation, and data visualization
• Back-end: Node.js & Express
• Production API development with the mssql driver or comparable: pooling, timeouts, crash-resilient behavior
• Databases: Microsoft SQL Server / T-SQL primary competency
• Stored procedures, views, and sequential migration scripting without an ORM or migration framework
• Application security fundamentals
• Token-based auth, password hashing, RBAC design, XSS avoidance, CORS discipline, upload validation, and secrets handling
• On-premise Windows delivery
• PowerShell scripting, Windows service and scheduled-task management, firewall configuration, and experience deploying without cloud CI/CD. API development: RESTful APIs, GraphQL, JSON, authentication, and integration with third-party systems
• DevOps/basic deployment: CI/CD pipelines, Docker, and environment configuration
• Security: Authentication, authorization, secure coding practices, and data protection
• Qualifications and certifications: A bachelor s degree in Computer Science, Software Engineering, Information Technology, Computer Engineering, or a related field Full Stack Engineer CV including Years of experience, Preferred Certification, and Technical Expertise: Front-end: HTML, CSS, JavaScript, TypeScript, React, Angular, or Vue.js
• Back-end: Node.js, Java, Python, C#, .NET, PHP, or similar server-side technologies
• Databases: SQL Server, PostgreSQL or MySQL. API development: RESTful APIs, GraphQL, JSON. DevOps/basic deployment: CI/CD pipelines, Docker (bidder may share more than one CV)