MERN Stack Developer (3+ Years)

Job Title : Product Engineer – Fullstack Developer

Experience Required : 4 to 6 Years

Location : Indiranagar, Bengaluru (Hybrid – 2 to 3 days/week in office)

Open to Remote : Yes (based on fit and preference)

Job Summary :

We are looking for a Fullstack JavaScript Engineer with a backend-heavy profile to join our innovative product team.

You’ll be involved across the full product lifecycle — from design and development to deployment and operations — for modern travel systems.

Ideal candidates should be strong in JavaScript, Node.js, and React.js, with a solid understanding of TDD, OOP, and CI/CD practices.

Mandatory Skills :

JavaScript, Node.js, React.js, REST/GraphQL APIs, OOP, TDD, CI/CD, Unit Testing, HTML/CSS, and experience in fullstack/backend-heavy development.

Key Responsibilities :

• Build robust features for our next-gen Trip Planning Systems.
• Work across the full stack: backend (Node.js, Kotlin), frontend (Vue.js/React.js), and APIs (REST/GraphQL).
• Participate in the entire SDLC – from planning and architecture to deployment and monitoring.
• Follow modern software engineering best practices like TDD, code reviews, continuous integration.
• Collaborate closely with cross-functional teams and contribute to technical design discussions.

Must-Have Skills :

• 4 to 6 Years of professional experience in fullstack development.
• Strong proficiency in JavaScript & Node.js.
• Hands-on experience with React.js (preferred over Angular).
• Proficiency in building REST or GraphQL APIs.
• Strong understanding of OOP and Test-Driven Development (TDD).
• Familiarity with CI/CD tools (e.g., Jenkins, GitHub Actions).
• Comfort working with multiple languages or stacks (e.g., Kotlin, Vue.js).
• Experience with unit testing and automation frameworks.

Nice-to-Have :

• Exposure to cloud infrastructure (e.g., AWS, Docker, Kubernetes, Terraform).
• Experience in both product and service-based companies.
• Contributions to code quality and code reviews.

Role Overview

We are looking for a Senior Full Stack Developer to build and scale our fintech platform. You will own the entire lifecycle of our financial products, from designing high-performance relational schemas in PostgreSQL to building interactive dashboards in React.

Key Responsibilities

• Full Stack Development: Build and maintain end-to-end features using the PERN stack

(PostgreSQL, Express.js, React, Node.js).

• Database Optimization: Design complex relational models and optimize SQL queries to

handle high-volume financial data and audit trails.

• Security & Compliance: Implement rigorous security measures (e.g., JWT, OAuth, data

encryption) and ensure the platform adheres to fintech standards like PCI-DSS.

• API Architecture: Develop robust RESTful APIs to integrate with third-party banking APIs,

payment processors (Stripe/Plaid), and KYC providers.

Technical Requirements

• Front-end: Advanced proficiency in React.js (Hooks, Context API, Redux or TanStack Query)

and modern CSS (Tailwind/Styled Components).

• Back-end: Expert-level Node.js and Express.js experience, with a focus on asynchronous

programming and secure API design.

• Database: Deep knowledge of PostgreSQL (complex joins, indexing, triggers, and

migrations).

Additional skills

• Understanding of Event-Driven Architecture (using AWS SQS/SNS or Kafka).

• Familiarity with SOC2 or ISO 27001 compliance frameworks.

• Cloud (AWS): Proven experience with:

• RDS/Aurora for managed databases.
• IAM for secure access management.
• AWS Lambda & API Gateway for serverless architecture.
• CloudWatch for monitoring and alerting.

• Tools: Git, Docker, and experience with CI/CD workflows.

About US

RJ Fintech Solutions Pvt. Ltd. is a high-growth fintech startup on a mission to automate business financial operations. In a world where financial systems are often slow and opaque, we are building the "missing link"—a secure, transparent, and lightning-fast platform that puts banking and compliance first for various corporates.

We are not just another financial app; we are an engineering-first company. We believe that elegant code and robust architecture are the foundations of trust. By leveraging the PERN stack and AWS cloud-native infrastructure, we are replacing legacy complexity with modern, scalable solutions.

Why Work With Us?

1. Build the Foundation, Not Just Features

You won't be a small cog in a massive machine. As an early member of our engineering team, you will help define our technical architecture, choose our libraries, and set the coding standards for everyone who follows. Your fingerprints will be on the core DNA of our product.

2. Solve Problems That Matter

Fintech is one of the few industries where code has a direct, measurable impact on people's lives.

Whether we are [e.g., simplifying cross-border payments, democratizing investment, or building the next generation of credit], you will be solving high-stakes challenges around security, trust, and financial inclusion.

Location: Jaipur (Work From Office)

Employment Type: Full-Time

We're looking for a GenAI Engineer (LLM Engineer) to build scalable AI-powered SaaS applications using Large Language Models (LLMs). You'll develop intelligent AI workflows, integrate LLMs into production systems, and build secure, high-performance AI solutions.

Key Responsibilities

• Integrate LLM APIs (OpenAI, Claude, Hugging Face) into production applications.
• Design and optimize RAG pipelines and prompt engineering workflows.
• Build and manage Vector Databases (Pinecone, Weaviate, pgvector).
• Optimize AI performance, latency, and operational cost.
• Ensure secure, scalable AI architecture.
• Collaborate with Product and Engineering teams to deliver AI-powered features.

Requirements

• 3+ years of backend development using Python, Go, or Node.js.
• Hands-on experience with LLMs, LangChain or LlamaIndex.
• Strong understanding of RAG, Prompt Engineering, and Vector Databases.
• Experience with AWS, GCP, or Azure.
• Knowledge of APIs, Microservices, and AI application development.

Preferred: Experience in SaaS/FinTech, LLMOps, or Model Fine-tuning.

Education: B.Tech, BCA, or equivalent technical qualification.

Apply Now

Application Form: https://zfrmz.com/pAKb2ynfomIsuNwRfRbV?utm_source=cutshort

We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

• 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

• Proven experience as a Full Stack Developer or similar role
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. NodeJs, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• Degree in Computer Science, Statistics or relevant fiel

About The Company
At AutoVRse, we build the finest, customised Virtual & Augmented Reality (VR/AR) applications, helping enterprises harness the power of immersive technologies across several key functions. Combining our photo-realistic visualisations with interactive virtual environments, we have partnered with firms like Bosch, Volvo, John Deere, Fidelity and Abbott to deploy VR experiences in India, Singapore, Australia, Germany and USA. Our experiences are used in design reviews, as sales tools, for experiential marketing and for virtual training.

Over the last few years, we’ve been named:
• “Best 40-Under-40 Startups in South India” (2018, TNIE),
• “Elevate 100 Top Startups in Karnataka“ (2017, KBITS),
• “Most Innovative Startup in India” (2016, CIO Demo), and several more.

About The Role
As a full stack developer, you will work closely with the engineering team to create immersive, next-gen VR/AR products on the web. You will work on cutting edge technologies 3D technologies and frameworks like WebVR and Threejs to build scalable, creative and practical applications for our enterprise clients.

As a full stack developer, you will work closely with the engineering team to create immersive, next-gen VR/AR products on the web. You will work on cutting edge technologies 3D technologies and frameworks like WebVR and Threejs to build scalable, creative and practical applications for our enterprise clients.

Responsibilities
• Build web-based 3D, VR applications for our clients
• Research, define, extend, and maintain production pipelines, processes, and workflows for our web-based 3D products
• Build the front-end of applications through appealing visual design
• Ensuring the entire stack is designed and built for speed and scalability
• “Pixel-perfect” implementation of our approved user interface

Qualifications
• Experience in deploying web applications in production
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Experience in server management and deployment for the relevant environment
• Experience in web-based 3D like WebGL/WebVR is a plus but not required.