Full Stack Developer - React.js/.Net Core

Full Stack Developer

React .NET Core | AI - Augmented Platform

About the Role:

We're looking for a Full Stack Developer to join our engineering team building a modern, AI - augmented web platform. You'll work across a React/TypeScript frontend, a .NET 8 backend, and a Python - based recommendation microservice powered by vector embeddings - contributing to a system that combines traditional transactional workflows with semantic search and AI - driven recommendations.

Key Responsibilities:

• Design, build, and maintain responsive user interfaces using React with TypeScript, ensuring performance, accessibility, and a consistent UX across devices.
• Develop scalable, secure REST APIs using ASP.NET Core 8 and Entity Framework Core, handling data access, business logic, and integration layers.
• Work with PostgreSQL 18, including schema design, query optimization, and integration of the pgvector extension for vector embeddings and semantic similarity search.
• Collaborate with the AI/ML team on the FastAPI (Python) microservice responsible for embedding generation and vector - based recommendations - consuming its APIs from the .NET backend and React frontend.
• Implement secure, scalable file upload/storage workflows using AWS S3 (documents, images, and other assets).
• Integrate a third - party OTP service for authentication/verification flows.
• Implement structured application logging, diagnostics, and monitoring using Serilog, contributing to observability and faster incident triage.
• Build responsive, consistent UI layouts using CSS and Bootstrap 5.3.8.
• Write clean, maintainable, well - tested code; participate in code reviews, sprint planning, and technical design discussions.
• Collaborate with backend, frontend, DevOps, and QA teams to ensure smooth, high - quality releases.
• Troubleshoot and resolve production issues across the stack, from UI rendering to API performance to database query behavior.

Required Skills & Qualifications:

• 4 - 5 years of professional experience in full stack web development.
• Strong hands - on experience with React and TypeScript, including component architecture, state management, and API integration.
• Solid experience with ASP.NET Core (.NET 8 or recent versions) and Entity Framework Core for building REST APIs and data access layers.
• Working knowledge of PostgreSQL, including relational schema design and query optimization; exposure to pgvector or vector/embedding - based search is a strong plus.
• Familiarity with microservice architectures and consuming APIs built in other stacks (e.g., Python/FastAPI services) is a plus.
• Experience integrating cloud storage services, ideally AWS S3.
• Experience with structured logging frameworks (Serilog or equivalent) and application monitoring practices.
• Proficiency in CSS and responsive frameworks, specifically Bootstrap 5.x.
• Understanding of secure authentication/verification flows (OTP - based or similar).
• Strong understanding of REST API design principles, Git - based version control, and CI/CD workflows.
• Good problem - solving skills and ability to work across the full stack independently.

Good to Have:

• Prior exposure to AI/ML - adjacent systems - vector databases, embeddings, or recommendation engines.
• Experience with cloud infrastructure (AWS) beyond S3 (e.g., basic familiarity with Lambda, EC2, or IAM).
• Experience working in Agile/Scrum teams.

Tech Stack Snapshot:

• Frontend: React with TypeScript
• Backend: .NET 8 Core with Entity Framework Core
• Database: PostgreSQL 18 with pgvector extension
• Embeddings & Recommendations: FastAPI (Python) microservice
• File Storage: AWS S3
• OTP Service: Client - selected provider (TBD)
• Logging: Serilog
• Styling: CSS, Bootstrap 5.3.8