Sr. Full-Stack Developer – MERN Stack + Python

Position: Full Stack Developer

Experience: 3+ Years

Location: Bangalore

Job Summary

We are seeking a talented and motivated Full Stack Developer with 3+ years of experience in building scalable web applications using ReactJS, Python, and PostgreSQL. The ideal candidate should have hands-on experience in frontend and backend development, database design, API development, and cloud-based application deployment. The role involves collaborating with cross-functional teams to deliver high-quality software solutions.

Key Responsibilities

• Design, develop, test, and maintain responsive web applications using ReactJS and Python.
• Build reusable frontend components and implement modern UI/UX practices.
• Develop RESTful APIs and backend services using Python frameworks such as FastAPI, Django, or Flask.
• Design and optimize PostgreSQL databases, including schema design, indexing, and query optimization.
• Integrate frontend applications with backend APIs and third-party services.
• Write clean, maintainable, and efficient code following best practices.
• Participate in code reviews, debugging, and performance optimization.
• Collaborate with product managers, designers, and QA teams throughout the development lifecycle.
• Implement authentication, authorization, and security best practices.
• Work with Git-based version control systems and CI/CD pipelines.
• Troubleshoot production issues and provide timely resolutions.

Required Skills

Frontend

• Strong experience with ReactJS, JavaScript (ES6+), HTML5, and CSS3.
• Experience with React Hooks, Context API, Redux, or similar state management libraries.
• Knowledge of responsive design and cross-browser compatibility.

Backend

• Strong proficiency in Python.
• Experience with FastAPI, Django, or Flask frameworks.
• Experience in building and consuming REST APIs.
• Understanding of asynchronous programming concepts.

Database

• Hands-on experience with PostgreSQL.
• Strong knowledge of SQL, query optimization, indexing, and database design.

Tools & Technologies

• Git/GitHub/GitLab.
• Docker and containerization concepts.
• CI/CD pipelines.
• Familiarity with Linux environments.

Job Description:

• 2 – 4 years of hands-on experience as a Developer in financial services
• Experience with C#/.NET
• Experience with JavaScript/TypeScript, ReactJS, and AWS Cloud technologies is a plus
• Experience with databases such as MSSQL and MongoDB is a plus
• Familiarity with concepts such as microservices, API, TDD, unit testing, and SDLC
• Knowledge of Stock Loan, Collateral margining, Swaps would be a great advantage
• Strong analytical and problem-solving skills, with the ability to think critically
• Strong written and verbal communication skills
• Experience in stakeholder management across both IT and business sectors

We are looking for an experienced Sr. Software Engineer to drive the design, architecture, and delivery of scalable B2B products from our Bangalore office. This role requires a strong hands-on technologist who can lead a team of engineers, make sound architectural decisions, and collaborate cross-functionally with Product, Design, DevOps, and Customer Success teams.

As a Sr. Software Engineer, you will play a critical role in shaping the technical direction of our platform, ensuring high-quality engineering practices, and delivering enterprise-grade solutions to our customers. This job can quickly grow into a Technical Lead position.

**Key Responsibilities**

🔹 Technical Leadership

Own end-to-end technical architecture and system design for core product modules.

Drive scalable, secure, and high-performance backend and frontend solutions.

Conduct design reviews, code reviews, and ensure adherence to engineering best practices.

Evaluate and introduce new technologies where appropriate.

🔹 Team Management

Lead, mentor, and grow a team of 5–6 engineers.

Foster a culture of ownership, accountability, and innovation.

Support hiring, onboarding, and mentoring.

🔹 Product Delivery

Collaborate closely with mangement to translate business requirements into technical solutions.

Drive sprint planning, estimations, and delivery timelines.

Ensure predictable, high-quality releases aligned with business goals.

🔹 Quality & DevOps

Champion CI/CD practices, automated testing, and DevOps processes.

Ensure system reliability, uptime, security, and performance monitoring.

Participate in incident management and root cause analysis.

🔹 Stakeholder Collaboration

Work cross-functionally with Sales, Customer Success, and Support teams for enterprise deployments.

Communicate technical decisions clearly to non-technical stakeholders.

**Required Qualifications**

4+ years of software development experience in product-based companies.

Strong experience with modern backend technologies (e.g., Java, Node.js, Python, or similar technologies).

Experience with frontend frameworks (React, Angular, or similar).

Solid understanding of microservices architecture and RESTful APIs.

Experience with cloud platforms (AWS, Azure, or GCP).

Strong knowledge of databases (SQL and NoSQL).

Experience building scalable B2B SaaS products.

**Preferred Qualifications**

Experience with multi-tenant SaaS architecture.

Familiarity with enterprise integrations (SSO, APIs, third-party systems).

Experience handling high-scale systems with large enterprise clients.

Exposure to security and compliance standards (ISO, SOC2, GDPR).

**Key Competencies**

Strong problem-solving and system design skills.

Excellent communication and stakeholder management skills.

Ability to balance hands-on coding with leadership responsibilities.

Strong ownership mindset with attention to detail.

Ability to thrive in a fast-paced, product-driven environment.

**What We Offer**

Competitive compensation and performance bonuses.

Opportunity to work on cutting-edge B2B products.

Collaborative and growth-oriented culture.

Health insurance and wellness benefits.

If you are passionate about building scalable B2B platforms and leading high-performing engineering teams, we would love to hear from you.

Position: Full-Stack Developer

Experience level: 5 + years

Location: Bangalore / Hyderabad

Tech stack: Node, Loopback, React

Essential Duties:

• Design and develop technical solutions that meet user needs with respect to functionality, performance, scalability, and reliability.
• Drive department best practices, guidelines implementation, and adhering to standards.
• Build and maintain medium-sized software platforms in the cloud.
• Build elegant, maintainable, well-documented, secure code.

Good to have:

• Development using a test-driven approach, AWS

Qualifications:

• 5+ years of progressive development experience as a Software Engineer.
• Bachelor's degree in Computer Science/Engineering or equivalent work experience.
• Strong hands-on development experience in Node JS and React.
• Hands-on Experience with RESTful Webservices/API and web-based applications is preferred.
• Experience implementing solutions using Agile delivery methodologies.

~ What Qualities are we looking for ~

-Be part of a Culture where Customer Obsession, Ownership, Teamwork, Bias for Action and Insist on High standards are a way of life
-Desire to work in a start-up environment, work culture, and be able to self-manage and self-initiative.
-Learn and use cutting-edge technology to build state-of-the-art platforms that enhance customer experience at scale
-Be part of high-performing teams that know how to have fun along the way
-Collaborating with Designer and Product Managers to translate beautiful designs into pixel-perfect views
-Experimenting and suggesting improvements to our frontend tools & workflows
-Taking the lead to maintain, refactor and if necessary, throw away legacy frontend code -End-to-end engineering
- design, development, testing, and deployment for the UI work

~ Job Requirements ~

• experienced in Node.js, Express.JS, MongoDB etc
• Strong coding and design skills.
• Good command over Data Structures & Algorithms.
• The ability to produce bug-free and production-grade code.

• IIT/NIT Graduates Preferred
• B.E/B.Tech with 1-2 years of experience in Ruby on Rails
• Hands on experience with using libraries such as RSpec, Beanstalkd, Faye and   background processing.
• Good knowledge of at least one of the Javascript frameworks like EmberJS, AngularJS
• Have a background in functional composition of web pages using HTML / CSS, and  turning a wireframe design into a well-formatted, user-friendly responsive web page
• Follow best practices like test-driven development, continuous integration, Agile    methodology, refactoring and code standards
• Proficient understanding of code versioning tools e.g. Git, Mercurial or SVN
• Good knowledge of schema less databases such as Elastic search, redis as well as  Relational Databases such as PostgreSQL
• Excellent problem solving skills and bringing in new, innovative ideas to the table to  make the platform more productive
• Hands-on experience on deployment and maintenance of server (knowledge about AWS  and performance monitoring tools like NewRelic / CloudWatch will be a great plus)
• Should be committed to the job and the growth opportunity in a startup
• Should enjoy working as part of a team
• Should be  proactive, self-driven, and able to thrive in a fast-moving startup environment 
• Should communicate fluently and effectively in English, internally and with external partners

We are looking for a lean MERN Stack developer who is specialized in developing JavaScript-based technologies i.e. MongoDB, ExpressJS, ReactJS, NodeJS. If you have that energy and passion to create impacts, we have the perfect job for you!  Job has flexible or temporary work from home options.

Job Responsibilities-

• Requirement gathering, UML & Database modelling and documentation
• Building interactive consumer data from multiple systems and RESTfully abstract to the UI through a Node.js backend
• Defining code architecture decisions to support a high-performance and scalable product with a minimal footprint
• Address and improve any technical issues
• Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant and efficient systems.
  
  

Requirements-

• BSc degree in Computer Science or similar relevant field
• Previous working experience as a MERN Stack Developer for 3+ years
• Experience with modern frameworks and design patterns
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience of implementing applications using Angular or React
• Experience for creating front end applications using HTML5, CSS3 Angular, LESS/SASS
• Hands on experience with JavaScript Development on both client and server-side
• Knowledge of Functional Testing regarding Unit Testing, Integration Testing & End-to-End Testing is required
• Strong knowledge of Testing tools is required with subject to Jest and Enzyme, React Testing Library, Puppeteer (or PhantomJS, Nightmare or Headless Chrome) and Selenium WebDriver
• Rest API development, documentation and testing using tools like Postman
  
  

Knowledge of the following will be considered as an advantage-

• Requirements gathering, modeling, documentation and project management using Visual-paradigm.com
• Javascript based workflow engines and Flow-Based Programming
• Consumer Web Development Experience for High-Traffic, Public Facing web applications,
• Experience with cloud technologies
• Creating secure RESTful-based web services in XML and JSON, JavaScript, JQuery,
• Continuous integration (Jenkins/Hudson) and version control (SVN, Git).
• Converting UI and website designs (.psd, .xd, etc) into react components using Storybook.js and creating test cases with scripts; including documentation and automated visual testing
• React with WordPress Headless CMS using frameworks like Frontity.org
• org for authorization and access control models
• io microfrontend’s architecture framework for highly modular fully flexible applications
• Speech Recognition , voice interface , and other AI functionility
• React native mobile, Electron desktop application conversion
• Heroku Pipelines, Heroku: Browser and UAT, Heroku CI, DevOps tools and processes.

Rawster is the digital interface for real life sports.
An early-stage startup that's set on blurring the line between Sports and E-sports.

Position

Full Stack Engineer (MERN stack)

Eligibility Criteria

• Minimum one year of working experience
• Must have skills : Experience in working with Full Stack Applications
• Exceptions can be made if proof of skill exists.

We are looking for a Full Stack JavaScript and NoSQL Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include implementing visual elements and their behaviors with user interactions. You will work in both front-end and back-end web development to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions. Build reusable code and libraries for future use

Development stack

Reactjs

React Native (Typescript)

Node.js

Koa.js/Express.js

MongoDB with Mongoose

PostGreSQL with knex

Remuneration : Based on skill and expertise,

ranging from* 5 to 11 Lakhs Per Annum*

You can expect..

• to play a role in the revolutionisation of Sports.
• a passionate and fast moving work culture; We are a tight-knit team.
• to experience the Victories and Struggles of an early-stage startup.
• to learn and grow with the team.
• competitive salaries and benefits.

Responsibilities and Duties

• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Manage server side javascript code.
• Ensure performance, security, and availability of database
• Handle common database procedures such as upgrade, backup, recovery, migration, etc.
• Profile server resource usage, and optimize and tweak as necessary
• Collaborate with other team members and stakeholders
• Adaptability, ability to learn faster, Independant, Responsible and diligent
• Good team spirit and interpersonal skills, excellent written, verbal, communication skills, analytical skills and business thinking.

Qualifications and Skills

• Strong understanding of JavaScript, its quirks, and workarounds
• Basic understanding of web markup, including HTML5 and CSS3
• Experience with advanced CSS programming using LESS or SASS.
• Strong understanding and experience in libraries React.js and React Native
• Strong understanding and experience in Node.js and other server side technologies.
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Familiarity with front-end build tools, such as Grunt and Gulp.js
• Strong proficiency with NoSQL e.g MongoDB. Knowledge of SQL DBMS is a bonus.
• Ability to plan resource requirements from high level specifications
• Capable of troubleshooting common database issues
• Familiar with tools that can aid with profiling server resource usage and optimizing it
• Proficient understanding of code versioning tools, such as Git

Job Type: Full-time

Salary: ₹500,000.00 to ₹1,100,000.00 /year