Full Stack Engineer (MERN Stack)

Key Requirements / Skills

• 6+ years of overall experience in software development with strong expertise in building scalable web applications.
• 2+ years of experience as a Technical Lead, managing development teams and driving project delivery.
• Strong technical decision-making ability, including architecture design, technology selection, and implementation of best practices.
• Front-end expertise: Strong experience in React, JavaScript, TypeScript, and building responsive and user-friendly UI/UX.
• Back-end development: Hands-on experience with Node.js, RESTful APIs, API design, and server-side architecture.
• AI/ML knowledge: Experience in implementing AI/ML models or integrating AI-based solutions to solve business problems.
• Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
• Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
• Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
• Strong communication skills to effectively interact with technical and non-technical stakeholders.
• Experience working in high-compliance environments such as healthcare systems is a plus.

Education Qualifications:

• B.Tech/M.Tech in CSE/IT/AI/ML from a good university

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.

About the job

Key Responsibilities

1. Design, develop, and maintain dynamic, responsive web applications using React.js and Node.js.

2. Build efficient, reusable front-end and back-end components for seamless performance.

3. Integrate RESTful APIs and third-party services.

4. Collaborate with UI/UX designers, mobile teams, and backend developers to deliver high-quality products.

5. Write clean, maintainable, and efficient code following modern coding standards.

6. Debug, test, and optimize applications for maximum speed and scalability.

7. Manage databases using MongoDB and handle cloud deployment (AWS, Firebase, or similar).

8. Participate in code reviews, architectural discussions, and agile development cycles.

Required Skills & Experience

1. 1-5 years of proven experience in Full Stack Web Development using the MERN stack.

2. Proficiency in React.js, Node.js, Express.js, MongoDB, and JavaScript (ES6+).

3. Strong understanding of HTML5, CSS3, Bootstrap, and Tailwind CSS.

4. Hands-on experience with API design, state management (Redux, Context API), and authentication (JWT/OAuth).

5. Familiarity with version control tools (Git, Bitbucket).

6. Good understanding of database design, schema modeling, and RESTful architecture.

7. Strong problem-solving skills and ability to work in a collaborative team environment.

Perks & Benefits

• Onsite opportunity in our modern Greater Noida office.
• Competitive salary based on skills and experience.
• Exposure to real-world projects and latest tech stacks.
• Work with a creative and talented team.
• Career growth opportunities in full-stack and cross-platform development.

Benefits:

• Health insurance
• Leave encashment
• Paid sick time
• Paid time off
• Work from home

Application Question(s):

1. How many years of _____ experience do you have?
2. What is your current CTC?
3. What is your expected CTC?

Developer – Full stack

·        Full stack development experience for 1-2 years

·        Implement new application features and improvements to existing features based on defined project requirements.

·        Experience with React or Angular framework

·        Familiarity of HTML5, CSS3, and JavaScript skills.

·        Experience developing server side applications in at least Java 8.

·        Experience with Spring Boot and REST APIs.

·        Collaborate with cross-functional teams to design, develop and deploy new features and applications

·        Ability to write and optimize SQL queries and database performance tuning

·        Familiar using source control systems, preferably Git.

·        Troubleshoot and resolve application bugs

·        Passionate about developing high quality code that has been thoroughly tested.

·        Strong written and verbal communications skills.

·        Stay up-to-date with emerging trends and technologies in web development

·        Implement automated testing and continuous integration and deployment processes

·        Ability to learn quickly.

Good to have skills

·        Python, Flask, Fast API knowledge

·        Cloud knowledge – preferably AWS

·        Understanding of graph database

·        Familiarity with containerization technologies such as Docker and Kubernetes

About us:

 We are not just an AD agency or a creative agency, we are a Communication Company. Founded in 2014, Moshi Moshi is a young, creative, gutsy and a committed communication company that wants its clients to always Expect the EXTRA from it.

Our primary clientele consists of Startups & Corporates like Ola, Zoomcar, Mercedes Benz, ITC, Aditya Birla Group, Colive, MTV, Toit, IHCL, Jaquar, Sobha, Simple Energy, and Godrej amongst others. We have a huge team of creative folks, marketers, learners, developers, coders and a puppy momo, who believe Moshi Moshi is an experience rather than a company.

Why Moshi Moshi? 

The learning curve at Moshi Moshi is very high when compared to the industry average and that's primarily because you get to work with Companies / Brand managers / Marketers of different sizes and thought processes who push you to think better and faster. So, Hop on to the ride we dearly call Moshi Moshi and let's Say hello to the world.

PS:- We are also very close to a lot of food joints and breweries, so in case your manager/boss gives you a lot of work or is Expecting the Extra, you can quickly grab a recharge and continue with your everyday life struggles. We can't do much about the manager!

What .............................. Are you a FULL STACK developer?

Yeah man I am Have you developed FULL STACK websites? Yeah I have done a few of these Oooo Mannnnn these are very poor Let me tell you one thing we are going to create the best website of your life together like these:- https://www.unisoindia.com/ https://www.florestagoa.in/ https://www.myhealthymunch.com/ https://www.moshimoshi.in/ 

Are you up for it? I am sure you are. We will take care of the design and you take care of the dev Here is JAY Calling out for His VIRU. Sachin calling out for his Sehwag. Ranveer calling for out his Deepika. Moshi Moshi & (Lucky you) Ps:- You can be the lucky one(Real JD is mentioned below)

A FULL STACK Developer is responsible for the coding, design, and layout of a website according to a company's specifications. As the role takes into consideration user experience and function, a certain level of both graphic design and computer programming is necessary. Handling the development of the website. Handling the tech side of the business and coordinating with the client. Team Management. Website Development.

Languages - React.JS, Redux, MySQL, Java Script, Microservices, Node.JS, MySQL, Mongo DB AWS server-side.

Full Stack Engineer (RUBY ON RAILS + REACT)

About Us

DirectShifts has set out to modernize healthcare recruiting. We're a team of physicians, entrepreneurs, and problem solvers who have come together to solve major pain points facing medical professionals today.

We've built a healthcare staffing technology platform that connects healthcare professionals directly with employers by using advanced technologies and digitizing the recruitment and staffing processes. Using an AI-based platform, DirectShifts matches the right clinicians to the right jobs at healthcare employers.

DirectShifts is headquartered in New York, NY and our team is spread across the US and India. Join us!

About What You’ll Be Doing

DirectShifts is growing rapidly and we are looking for a full-stack engineer to join our technical team, working out of India. We need incredibly tenacious engineers who are not only great engineers but who can bring unique value to our rapidly growing team.

If you are passionate about coding – and do it on a day-to-day basis, then this is the place for you.

We are big fans of focusing mainly on two things: 1) talking to users and 2) build products. 

You will be responsible for implementing ideas and mocks for our app (web and mobile) which is used daily by healthcare professionals, internal users, and healthcare employers - you will own the frontend development as well as the building blocks and the APIs that power the web app (and the mobile apps). You need to be comfortable dabbling with some basic infrastructure management on AWS.

About You

Ideal Qualifications

• Recent Hands-on experience with Ruby on Rails and React.js
• 4+ years of work experience, primarily as a full-stack developer
• A strong foundation of Ruby on Rails
• Strong React, HTML, Javascript & CSS skills
• High ownership at all stages of product development - from conception to maintenance
• Adaptability - learn new technologies as and when needed
• Good communication skills to get your point across
• Bachelor in Computer Science
• Ability to work remotely

Bonus Skills

• Redux experience
• Experience with REST APIs
• Experience with cloud services (preferably AWS)

Specifically, You Will:

Work closely with the founders and senior management across various functions. You will have the opportunity to influence the trajectory of the products and of the company. This is a great opportunity to help healthcare systems & professionals become more efficient which directly helps them provide better care, improve outcomes and save more lives!

You will excel if you have

An ability to thrive in a fast-paced environment and the ability to iterate quickly by understanding what users want. 

More about DirectShifts

We have raised more than $45 million from some of the world’s leading investors including Serent Capital, YCombinator, and Soma Capital. We're on a mission to disrupt a massive industry and improve healthcare in the United States by ensuring every patient has easy access to the healthcare they need. At DirectShifts, everyone has a voice to create change and move the needle; no hierarchy, no bureaucracy, no politics, no BS...just real people working on solving real problems.