MERN Stack Developer

Design and develop scalable web applications using MEAN/MERN stack.

Build & optimize AI/LLM workflows using LangChain or LangGraph.

Implement vector storage & semantic search using FAISS / Pinecone / Chroma / Milvus.

Build APIs, microservices, and integration layers.

Optimize application performance and ensure code quality.

Collaborate with cross-functional teams (product, design, backend, DevOps).

Must-Have Skills

• Strong experience in Node.js, Express.js, MongoDB, and Angular/React.
• Hands-on experience in LLM apps, RAG pipelines, Vector Databases.
• Practical knowledge of LangChain / LangGraph.
• Experience with REST APIs, authentication, and integrations.
• Solid understanding of Git, CI/CD, and cloud platforms (AWS/Azure/GCP).

• Proficient in creating Web (Responsive) applications using Angular 8+, AngularJS, JavaScript, JQuery. 
• Experience developing/consuming RESTAPIs
• Knowledge of multiple back-end languages Like Java, Python and JavaScript frameworks(e.g. Node.js)
• Familiarity with databases (e.g.MSSQL, MySQL), and UI/UX design
• Hands-on experience with code versioning systems like Git, SVN. 

We are looking for passionate NodeJS Developer responsible for the development of cloud-native Microservices driven systems. Skills in Angular, NodeJs and PostgreSQL. Knowledge of Azure will be an added advantage. Should have knowledge of Source Control.

The end-to-end, design to solution approach is what makes you a perfect fit for the role. Constant upgradation of systems based on user feedback, internal research, performance improvements and bug fixes will be your primary focus. Occasionally you will interact with stakeholders to take the system to the next level.

Your main duties will include creating micro services and components and coupling them together into a functional app. You will work in a self-sufficient team with widely experienced in developing & managing BFSI systems.

Responsibilities

• Develop solutions on NodeJS and Angular
• Debug & troubleshoot
• Maintain documentation
• Ensure quality of deliverables

Skill Sets

Must Have

• Strong development knowledge on JS - NodeJS, Angular
• PostgreSQL
• Postman
• JSON

Good to Have

• Knowledge of Agile
• Experience on Azure
• Type ORM
• API testing tools - chai & mocha

Eligibility

Qualification: BE / B. Tech. / BCA / MCA

Experience

Total software development experience of 3- 4 years with minimum 1 year on NodeJS

Skills

- PostgreSQL, Postman, JSON, NodeJS (Node.js) and Angular (2+)

Job Title: Full Stack Developer

Location: India – Noida.

Shift: Rotational

Job Function: Engineering

Employment Type: Full Time

Company:

SaaS Labs, founded in 2016, is a fast-growing company in the software as a service “SaaS” space focusing on the cloud contact centre space. The cloud contact centre space is a fast-growing market with an addressable opportunity of $24B globally and is expected to witness explosive growth in the next few years. The company was founded by Gaurav Sharma, who is a third-time entrepreneur, having successfully sold both his previous companies (in 2012 and 2016). With a current employee strength of 75, SaaS Labs expects to double it by the end of 2021. Bootstrapped since inception, the firm recently closed a large venture capital round from two large global funds The firm has two core products for now - justcall.io (https://justcall.io/) and helpwise.io (https://helpwise.io/) and the vision is to build a portfolio of contact centre offerings and not just restrict to these products only.

Responsibilities:

• Participate in the design and creation of scalable software
• Write clean, functional code on the front- and back-end
• Testing and fixing bugs or other coding issues
• Work with development teams and product managers to ideate software solutions.
• Test software to ensure responsiveness and efficiency
• Troubleshoot ,debug and upgrade software
• Create security and data protection settings
• Build product and features with a mobile responsive design.
• Strong hold on PHP, MySQL and jQuery

• Work with development teams and product managers to ideate software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software