Simulanis Solutions - Full Stack Developer - Node.js/Express.js

Role Overview :

We are seeking a highly skilled Full Stack Developer with at least 2.5 years of experience to join our product engineering team. In this role, you will be responsible for building and maintaining a microservices-based multi-tenant framework using the MERN stack, while also enabling seamless integrations with Python-based applications that leverage Retrieval-Augmented Generation (RAG), Large Language Models (LLMs), and the Azure AI Library.

Key Responsibilities :

- Design, develop, and maintain microservices using Node.js/Express.js in a multi-tenant architecture.

- Build end-to-end solutions using MERN stack (MongoDB, Express.js, React.js, Node.js).

- Integrate front-end components with backend logic for seamless performance and UX.

- Develop and integrate with Python-based services and APIs (Flask/FastAPI) that implement RAG workflows and LLMs.

- Leverage the Azure AI Library for embedding AI-powered features into applications.

- Implement and maintain RESTful APIs for internal services and external third-party integrations.

- Optimize backend performance with efficient code, data structures, and caching mechanisms.

- Use Azure (or AWS) cloud services for deployment, monitoring, autoscaling, and system health.

- Work with both relational (MySQL/PostgreSQL) and NoSQL (MongoDB) databases to manage distributed data.

- Follow DevOps practices, CI/CD pipelines, and containerization (Docker; Kubernetes is a plus).

- Ensure data security, system availability, and compliance in a cloud-native environment.

- Conduct code reviews, debug issues, and optimize applications for performance and scalability.

- Collaborate closely with product managers, designers, and cross-functional engineering teams.

Required Qualifications :

- Bachelors degree in Computer Science, Information Technology, or related field.

- Minimum of 2.5 years experience as a Full Stack or Backend Developer.

- Hands-on expertise in MERN stack (MongoDB or MySQL, Express.js, React.js, Node.js).

- Experience with Microservices architecture and REST API development.

- Practical exposure to Python web frameworks like Flask or FastAPI.

- Experience integrating or developing AI capabilities using RAG, LLMs, or Azure AI Services.

- Familiarity with cloud platforms (Azure preferred; AWS/GCP acceptable).

- Working knowledge of containerization tools (Docker; Kubernetes is a plus).

- Proficient in database design, performance tuning, and managing distributed data systems.

- Strong understanding of multi-tenant architecture, application security, and scalability.

- Version control experience (preferably Git).

- Excellent communication, collaboration, and analytical skills