MERN Stack Developer

About TIFIN

TIFIN is an AI-powered fintech platform backed by industry leaders including JP Morgan, Morningstar, Broadridge, Hamilton Lane, Franklin Templeton, and Motive Partners.

We are building engaging wealth experiences that help improve financial lives through AI and investment intelligence-powered personalization. Our mission is to transform the world of wealth by combining technology, behavioral design, and investment intelligence to deliver better outcomes for investors.

At TIFIN, we use software and APIs to create personalized financial experiences, and algorithmic intelligence to power smarter financial decisions.

Our Values: Go with your GUT

• Grow at the Edge – We are driven by personal growth, step outside our comfort zones, and strive to be the best version of ourselves with self-awareness and integrity.
• Understanding through Listening and Speaking the Truth – We value transparency, authenticity, and radical candor to create shared understanding and strong decision-making.
• Win for TeamWin – We take ownership, stay in our genius zones, and work together with energy and commitment to succeed as a team.

Role Overview

We are looking for a talented and hands-on Fullstack Engineer to join our growing engineering team in Mumbai. This role is ideal for someone who enjoys building across the stack — from scalable backend systems and intuitive web applications to mobile-first experiences.

You will work closely with cross-functional teams to build high-impact products that power modern wealth and financial experiences. This is a high-ownership role where your work will directly influence product quality, user experience, and platform scalability.

Key Responsibilities

• Design, build, and maintain scalable full-stack applications using Python on the backend and React.js on the frontend.
• Develop and ship mobile features using Flutter, ensuring a seamless cross-platform experience across iOS and Android.
• Collaborate with Product, Design, Data Science, and Engineering teams to translate business requirements into robust technical solutions.
• Build and optimize RESTful APIs, backend services, and reusable frontend components.
• Ensure high standards of performance, security, scalability, and reliability across applications.
• Take end-to-end ownership of features from design and development to testing, deployment, and monitoring.
• Participate in code reviews, architecture discussions, sprint planning, and engineering best practices.
• Contribute to internal documentation, development processes, and knowledge sharing across teams.

Required Skills & Qualifications

• 5+ years of experience in fullstack software development.
• Strong hands-on experience with Python and backend frameworks such as FastAPI, Django, or Flask.
• Solid experience with React.js, including hooks, component-based architecture, state management, and performance optimization.
• Practical hands-on experience building mobile applications using Flutter.
• Experience working with REST APIs, microservices, and modern frontend/backend integration patterns.
• Good understanding of relational and/or NoSQL databases such as PostgreSQL, MySQL, MongoDB, or Redis.
• Familiarity with cloud platforms such as AWS, GCP, or Azure.
• Experience with Docker, CI/CD pipelines, Git, and agile development workflows.
• Strong grasp of software engineering fundamentals, system design, and clean coding practices.

Good to Have

• Experience in fintech, wealth management, or financial services.
• Exposure to GraphQL, WebSockets, or real-time applications.
• Familiarity with AI/ML integrations or experience working closely with Data Science teams.
• Published apps or prior experience delivering production-grade mobile applications.
• Startup experience or experience working in high-growth product environments.

What We Offer

• Opportunity to work at the intersection of AI, fintech, and investment intelligence.
• A collaborative and high-ownership work culture.
• Competitive compensation and performance-linked incentives.
• Exposure to a global fintech ecosystem backed by top financial institutions and investors.
• The chance to build products that meaningfully improve financial lives.

TIFIN is an equal opportunity employer and values diverse perspectives, experiences, and backgrounds.

Job Summary:

As a MERN Stack Developer, you will be responsible for designing, developing, and maintaining robust full-stack applications using MongoDB, Express.js, React.js, and Node.js. With 5+ years of experience, you’ll work closely with cross-functional teams to deliver secure, performant, and user-friendly solutions.

Key Responsibilities:

• Build end-to-end web applications using the MERN stack
• Write clean, maintainable, and efficient code
• Integrate RESTful APIs and third-party services
• Optimize applications for maximum performance and scalability
• Collaborate with product, QA, and DevOps teams throughout the SDLC
• Participate in code reviews, troubleshooting, and improvement initiatives

Required Skills & Qualifications:

• 5+ years of experience in full-stack development with MongoDB, Express, React, and Node.js
• Strong JavaScript/TypeScript skills (ES6+)
• Solid understanding of RESTful APIs, MVC architecture, and microservices
• Experience with Git and Agile methodologies
• Familiarity with responsive UI/UX best practices

Preferred Skills:

• Exposure to cloud platforms like AWS or Azure
• Experience with CI/CD pipelines and testing frameworks like Jest or Mocha
• Familiarity with containerization tools like Docker/Kubernetes

We are looking for passionate, talented, and motivated Developers to join our team and help deliver high-quality technical solutions. If you’re excited about working on the newest technologies and delivering value with a sense of ownership, then you should join us.

What you will do:

• Write clean code that follows industry standards and best practices.
• Participate in architectural discussions to improve our technology stack.
• Innovate ideas to promote best practices.
• Work closely with cross-functional stakeholders to make collaboration better between teams.
• Deliver high-quality and maintainable code using test-driven methodologies.
• Participate and contribute towards improving the development process and practices within the team and across the organization.

Qualifications:

• You will have a minimum of 3 years of industry experience developing on the FullStack
• Experience with CSS, HTML, Javascript
• Experience with RESTful services
• Knowledge and experience in building scalable Node.js applications
• Continuous integration/continuous deployment experience
• Experience with building tools such as Webpack, grunt, gulp, babel etc.
• Strong desire to learn and share knowledge with others

Desired Skills:

• Strong understanding of data structures and design patterns
• Experience with one or more front-end Javascript frameworks is a BIG plus
• Full understanding of the complete web technology stack including how to architect highly scalable solutions
• Experience with Relational or NoSQL databases
• Working knowledge of AWS services.

• Proven experience as a Full Stack Developer or similar role
• Experience developing desktop and mobile applications
• 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. 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
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind
• Degree in Computer Science, Statistics or a relevant field

• Track record of delivering various features in large-scale applications or core systems with at least 5 years of experience. If you've written code in big data applications handling multitudes of data or real-time events, you're in.
• Experience writing multi-component systems or micro-services, with architectures requiring efficient inter-application communication. If you know what Kafka is, and think it's the bee's knees, we will think the same of you.
• Experience writing in a high-level language such as Go, C, Rust, Python, Ruby, etc.. If you're already writing Go, or spent a weekend debugging the worse memory leak ever, that's a big plus.
• Experience writing APIs (either RESTful or not) and RPCs. If you've broken backwards compatibility for your customers once, and dealt with the fallout, we want you (to deal with the fallout again).
• Experience with RDBMS systems (e.g. MySQL, PostgreSQL, Oracle, SQLite) and/or NoSQL databases (e.g. MongoDB, Redis, Cassandra, Couchbase). If you've written queries with more than two joins, or have a strong opinion of why an integer is better as a primary key (or maybe a UUID), we'd like to hear from you.
• Experience with container platforms and orchestrators such as Docker, Kubernetes and OpenShift is a plus. If you can name one way in which a container is different than a regular process, you're golden.
• Are you a free software/open source nerd? Do you maintain open source projects? Are you a Hacker News reader? Do you remember the days when you had to compile your own Linux kernel? Do you believe it should be called GNU/Linux? Have you ever been in a fight with an Emacs user? Are you an Emacs user? Well, we have the job for you!

• Previous working experience as a MERN/MEAN  Stack Developer for 1 year (Minimum).
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 2+ versions or React
• Experience creating front end applications using HTML5, Angular/React, LESS/SASS
• Hands on experience with JavaScript
• Development on both client and server-side
• Experience on Angular 2+  and React Js will be an plus point
• Experience on both MEAN/MERN Technologies will be an advantage.