Fullstack Developer

Job Title : Senior Python Developer

Experience : 7+ Years

Location : Remote or Hybrid (Gurgaon / Coimbatore / Hyderabad)

Job Summary :

We are looking for a highly skilled and motivated Senior Python Developer to join our dynamic engineering team.

The ideal candidate will have a strong foundation in web application development using Python and related frameworks. A passion for writing clean, scalable code and solving complex technical challenges is essential for success in this role.

Mandatory Skills : Python (3.x), FastAPI or Flask, PostgreSQL or Oracle, ORM, API Microservices, Agile Methodologies, Clean Code Practices.

Required Skills and Qualifications :

• 7+ Years of hands-on experience in Python (3.x) development.
• Strong proficiency in FastAPI or Flask frameworks.
• Experience with relational databases like PostgreSQL, Oracle, or similar, along with ORM tools.
• Demonstrated experience in building and maintaining API-based microservices.
• Solid grasp of Agile development methodologies and version control practices.
• Strong analytical and problem-solving skills.
• Ability to write clean, maintainable, and well-documented code.

Nice to Have :

• Experience with Google Cloud Platform (GCP) or other cloud providers.
• Exposure to Kubernetes and container orchestration tools.

About the Position

We are looking for a passionate and experienced software engineer to join our team at Mumbai. In this role, your primary responsibilities will be to take ownership of developing user facing applications and features in an agile manner. You will design and implement scalable and performant front-end solutions from scratch, while also taking a hard look at the existing ones.

What you will do at QI?

• Design, develop and deliver new user-facing apps and feature and improve existing ones
• Take ownership of product(s), and contribute to dev cycles and sprints planning
• Ensure technical feasibility of UI/UX design, share inputs with other teams including product, design and QA
• Optimize applications for performance, user experience and SEO
• Build reusable code and libraries. Contribute to open source projects.
• Stay up-to-date with new technologies with an eye of constantly adapting and improving our systems and methods.

Basic Job requirements

• 2 years + work experience in a similar role
• Strong experience in HTML5, CSS, DOM and front-end tooling ecosystem (Gulp,Grunt, Webpack)
• Excellent concepts and command over JavaScript
• Strong concepts and commercial experience in Vue.js
• Solid foundation in software development ( algorithm design, data structure, SDLC)
• Good concepts of unit testing and automation testing for UI components
• Good understanding of web app performance including Google Core Web Vitals metrics.

Location - Remote 

Good to have

• Basic knowledge of REST API and relational databases
• Basic understanding of browser internals
• Familiarity with web components and shadow DOM
• Exposure to progressive web app design.

About QuantInsti®

QuantInsti® was started in 2010, by the founders from iRage – a leading quant and algo trading firm in India.  From its early days focused on bridging the industry knowledge gap in the field of high-frequency trading, we have come a long way in the last decade. Today, we have a user base from 180+ countries with a growth rate much over 50% year-on-year.

At QuantInsti®, we swear by our goal of revolutionizing the way people approach the financial markets by empowering individuals and institutions with bleeding edge education and technologies. We offer high quality https://www.quantinsti.com/epat">learning experience and best-in-class https://quantra.quantinsti.com/">courses geared towards a global audience in quantitative trading and investing. Our in-house developed technology aims to bring institutional grade tools and https://quantra-blueshift.quantinsti.com/">platforms to democratize systematic and quantitative trading.

We achieve this by putting technology at the core of our business. We have a complex ecosystem of microservices and applications deployed over a fully cloud-based infrastructure. Our tech stack includes Node.js, Vue.js, Python and Docker. The team is driven by user experience, with strong focus on delivering scalable software solutions to complex and evolving business goals.

Why you should join us?

At QuantInsti, we work at the cutting edge of FinTech and EdTech offerings. We work with the newest technologies with a goal of delivering best experience to our users in a scalable manner, with high-performance and availability. If you love to be challenged intellectually, rest assured we have plenty of them for you. We follow an open and free work culture, where you are encouraged to ask questions, learn and teach. We offer a fast-paced environment where you take ownership of what you design and deliver. If you are looking for a move where you will find a reason to wake up every morning and rush to work, come join us.

Job Description: Senior Full-Stack Engineer (MERN + Python )

Location: Noida (Onsite)

Experience: 5 to 10 years

We are hiring a Senior Full-Stack Engineer with proven expertise in MERN technologies and Python backend frameworks to deliver scalable, efficient, and maintainable software solutions. You will design and build web applications and microservices, leveraging FastAPI and advanced asynchronous programming techniques to ensure high performance and reliability.

Key Responsibilities:

• Develop and maintain web applications using the MERN stack alongside Python backend microservices.
• Build efficient and scalable APIs with Python frameworks like FastAPI and Flask, utilizing AsyncIO, multithreading, and multiprocessing for optimal performance.
• Lead architecture and technical decisions spanning both MERN frontend and Python microservices backend.
• Collaborate with UX/UI designers to create intuitive and responsive user interfaces.
• Mentor junior developers and conduct code reviews to ensure adherence to best practices.
• Manage and optimize databases such as MongoDB and PostgreSQL for application and microservices needs.
• Deploy, monitor, and maintain applications and microservices on AWS cloud infrastructure (EC2, Lambda, S3, RDS).
• Implement CI/CD pipelines to automate integration and deployment processes.
• Participate in Agile development practices including sprint planning and retrospectives.
• Ensure application scalability, security, and performance across frontend and backend systems.
• Design cloud-native microservices architectures focused on high availability and fault tolerance.

Required Skills and Experience:

• Strong hands-on experience with the MERN stack: MongoDB, Express.js, React.js, Node.js.
• Proven Python backend development expertise with FastAPI and Flask.
• Deep understanding of asynchronous programming using AsyncIO, multithreading, and multiprocessing.
• Experience designing and developing microservices and RESTful/GraphQL APIs.
• Skilled in database design and optimization for MongoDB and PostgreSQL.
• Familiar with AWS services such as EC2, Lambda, S3, and RDS.
• Experience with Git, CI/CD tools, and automated testing/deployment workflows.
• Ability to lead teams, mentor developers, and make key technical decisions.
• Strong problem-solving, debugging, and communication skills.
• Comfortable working in Agile environments and collaborating cross-functionally.

• Hands-on experience with PHP and frameworks like Laravel, Codeigniter.
• Thorough understanding of React and its core principles.
• Good with JQUERY.
• Database design for scalable and secure system using NoSQL (MongoDB) or RDBMS (MySQL or
• PostgreSQL)
• POC development with other engineers
• Writing Unit testing for a robust system

Skills: 

Strong knowledge of MYSQL/PostGreSQL; Knowledge of MongoDB, Redis, Couch DB is preferred. 

Expertise in application development, databases, version control, and deployment. Skill - Node.js, 

Experience of AWS or GCP - especially services such as Lambda or google app engine 

Solid grasp of Service-oriented architecture. Web Services implementation on a medium to large scale 

Solid understanding of scaling mobile app services. Having worked the backend of an Android app is preferred 

Culture: 

Ability to work independently with minimal supervision 

Happy to deal with, and contribute to, an environment of daily builds Has worked in small teams, is versatile. Work within short timelines and be receptive to business needs. Can work closely with Digital, Product, Operations teams. 

Desirable Social Attributes: 

Has contributed to one or more Open Source projects through own initiative. Has provided a high quality answer to a question posted on StackOverflow. 

Role: 

As a Software Developer who would work independently, the candidate is expected actively acquire problems and deliver solutions as well as guide the team technically. Such a problem solver would obviously be a self starter with a high level of curiosity rather than a programming language specialist. 

He/she would be required to produce software of the highest quality through self-discipline, clear and engaged communication, and attention to detail. The role would include custom web application development on (most typically on Node.js and PHP/Python), databases (most typically MySql and MongoDb), version control (github), testing (necessarily through test scripts written before code is written), daily builds and eventual deployment onto AWS or GCP. 

Attributes of the ideal candidate: 

Highly productive software developer with the proven aptitude to understand and apply technology 

Determination to succeed despite obstacles and challenges, and a positive attitude favoring achievement of goals over open-ended investigation 

Always learning, evolving, and sharing what you know 

Inspired by complex, varied problems and rapid change 

Open-minded, flexible, and curious about new and better ideas

We are a registered broker-dealer and ATS (Alternative Trading System) currently building a revolutionary ecosystem to support the issuance and trading of digital asset securities (tokenized securities and other assets). We envision a future where everything is tradeable and have already constructed the technological foundation on which this thesis can develop.

As an SEC and FINRA- regulated company licensed to conduct business in digital asset securities, we are positioned to bridge traditional finance and the digital future, leveraging technology to improve the capital markets for issuers and investors alike.

The Role

We are looking for a Senior Full Stack Developer (React, NodeJS) 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.

Responsibilities

• Perform hands-on software development, including writing code and unit tests, doing proof of concepts, conducting code reviews, and testing in ongoing sprints

• Work closely with product team and other full stack developers to implement innovative solutions to challenging web development problems

• Participates in system design and specifications, program logic and flow-charting, development, testing, debugging, documentation, and support

• Supports new and ongoing digital defi projects, and integration with clients and vendor platforms

• Provides analysis of problems and recommends solutions

Requirements

• 5+ years of experience working in React and able to demonstrate strong JavaScript knowledge

• 5+ years of experience working with NodeJS

• 3+ years of experience working with PostgreSQL and DynamoDB

• Experience with CI and CD environment and AWS platforms

• Proficiency working with Docker

• Experience writing APIs and securing APIs

• Proficiency working with ECS and EKS

• Strong experience in systems architecture design and development

• Strong experience building single-page web applications

• Ability to efficiently manage and build large, complex web applications

• Strong analytical and problem-solving skills, with good attention to detail

• Self-motivated, ability to work independently

• Ability to use creative thinking to develop innovative solutions to business problems

• Strong project management skills, including the ability to manage multiple projects simultaneously

• Ability to mentor other developers

• Ability to work in a fast-paced team environment

Back End development of websites and applications using PHP,
AJAX and JS and their frameworks to create and integrate
functional web standard projects. Taking ready HTML/CSS files
from front end developers and executing the project based on the
logic and wireframes provided by designers

Solid knowledge of PHP, MySQL, JSON, and XML
● Proven experience building data-driven web
applications
● Experience working with API development
● Familiarity with design patterns such as MVC
● Experience with Open Source PHP CMS such as
WordPress or Drupal or Magento
● Comfortable with data modeling, stored
procedures, and views
● Ability to work closely with front end developers
● Knowledge of JavaScript / jQuery skills / HTML / CSS
● Experience building large, scalable applications
● Experience building custom
content management
systems
● Awareness of current development trends in the
coding and development like Docker, Micro
services and an understanding of how these
technologies can improve and impact projects
● Knowledge of GIT or any other version control
software.