Full Stack Developer

Founding Engineer – RetainSure (Bengaluru)

Full-stack • Python/FastAPI • React • Postgres • AWS • Early-stage.

RetainSure is an AI Customer Success Manager that eliminates the need for CSMs for low-touch accounts and reduces headcount by 80% for high-touch teams. We integrate deeply across product, CRM, support, billing, and external signals to build a unified intelligence layer, and deploy specialized AI agents that behave like a human CSM across backstage, in-meeting, and in-product workflows.

We’re now hiring a Founding Engineer to join our core team and help build the next $100M+ AI infra layer for Customer Success.

What You’ll Own

• Architect and build core product components across backend, frontend, infrastructure, and data pipelines.
• Develop scalable services using Python, FastAPI, Postgres, and AWS-native components.
• Build high-quality user-facing experiences in React.
• Design, optimize, and maintain database schemas and high-throughput workflows.
• Work directly with the founders to define product, ship fast, and iterate with customers.
• Own modules end-to-end, from concept → architecture → implementation → monitoring.
• Set engineering standards, improve dev velocity, and lay the foundation for the engineering culture.

What We’re Looking For

Must-haves

• 2+ years of experience as a Full-Stack Engineer in high-velocity environments.
• Strong backend fundamentals: Python, FastAPI, SQL/Postgres, distributed systems basics.
• Solid frontend engineering with React.
• Strong grasp of DSA, algorithms, and database internals.
• Deep comfort with AWS (EC2, S3, Lambda, RDS, VPC, IAM, etc.).
• Bias toward action, ownership, and solving real customer problems.
• Ability to move fast without compromising code quality.

Cherry on Top

• Ambition to start your own company in the future: we love founders-in-the-making.
• Experience building large-scale SaaS systems, data platforms, or AI-driven workflows.
• Worked in early-stage startups or shipped 0→1 products before.

What You’ll Get

• Founding-level ESOPs with outsized ownership.
• Work with founders experienced in building/scaling SaaS (Rubrik, Mailmodo, ClearTax).
• High trust, zero bureaucracy, rapid execution environment.
• Opportunity to architect systems that will scale globally across enterprise customers.
• First-hand exposure to building and scaling a company from scratch.

Salary Range

15-18 LPA + founding engineer level ESOPs

Location

Bengaluru

Full Stack Developer

Job Description

Key Responsibilities

• Design, develop, and maintain both new and existing code, ranging from client-side development using JavaScript, HTML, and CSS, to server-side code using C# and ASP.NET MVC, Web API, Windows services, and ADO.NET for data persistence and retrieval.
• Write readable, extensible, testable code, while being mindful of performance requirements. • Create, maintain, and run unit tests for both new and existing code, with a goal of delivering defect-free and well-tested code to QA.
• Work with management to create and adhere to schedules, while maintaining flexibility to adapt to shifting market demands.
• Translate mockups and wireframes into functioning front-end code.
• Write and maintain documentation for new and existing features.
• Keep up-to-date on best practices and new technologies.
• Rapid prototyping, and presenting conceptual design and working prototypes to management.
• Conduct design and code reviews and collaborate to ensure your own code passes review.
• Work with Product Management to analyze require

Required Skills & Experience

General

• Solid understanding of OOP design principles
• Visual Studio 2017 and above, SQL Server 2016 and above
• Remote debugging
• Unit Testing

Front-end

• C#, ASP.NET MVC and MVC core, Web API and .Net Core web Api
• JavaScript, jQuery, AJAX
• HTML5, CSS3, Responsive Design understanding
• Understanding of web technology stack, including HTTP, REST, cookies, caching, and asset loading

Back-end

• Windows & web services, WCF, MSMQ
• C# and .NET Framework • Experience with scalable, performant design and architecture

Database

• Working knowledge of SQL and relational databases
• Should be able to read and write basic SQL queries, stored procedures, views, and functions
• ADO.NET & LINQ to SQL

Desired Skills & Experience

General

• Familiarity with Azure 
• Installation and deployment (Azure App)
• Experience with automated builds and deployment (Azure DevOps, TeamCity and Docker)
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies
• Excellent troubleshooting and communication skills

Front-end

• Angular or React UI framework
• Experience with Logi Analytics (Graylog etc.)
• Experience with .NET Web Forms and migrating to MVC

Back-end

• Azure Function, Azure Service bus, Event hub, AWS Lambda, ElastiCache

Experience with NOSQL databases (Mongo or Cosmos)

Qualifications

• Minimum of a Bachelor's or Master’s degree in Computer Science, or a related four-year degree.
• Hands on experience in development
• Preferred experience in leading a team

Role : Java Fullstack Developer

Location : G. noida

Budget: 1.3 LPM

Experience: 5+ years

Add PAN no & DOJ on CV

Candidate must have knowledge of JAVA / J2EE.    

Executes the development, Maintenance, and enhancement of varying complexity levels across platform systems.  

Translate the business requirements and specifications into related solutions designs to understand business needs and functional specifications. 

Write and review technical documents, including design, developments, and code review.  

Good to have knowledge of AWS, SPRING BOOT HIBERNATE, REST API .

Candidate should be able to understand Microservices architecture, continuous integration and deployment mechanism.

About Us:

At Product Fusion, we are dedicated to building innovative and scalable software solutions. Our team is passionate about leveraging cutting-edge technologies to drive product excellence and create impactful digital experiences. We invite you to join our dynamic team and contribute to our mission of technological innovation.

Job Description:

We are seeking a talented and motivated Full-Stack Developer to join our team. The ideal candidate will have a strong background in both front-end and back-end development, with proficiency in modern web technologies and frameworks. You will work closely with our development team to design, develop, and deploy scalable web applications.

Requirements:

• Proven experience as a Full-Stack Developer or similar role
• Strong proficiency in React JS or Next JS
• Solid understanding of Python and frameworks like Django or Fast API or Flask
• Proficiency in Tailwind CSS for front-end development
• Experience with PostgreSQL or MySQL databases
• Familiarity with Kubernetes for container orchestration
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork abilities

What We Offer:

• Competitive salary and benefits
• Flexible working hours and remote work options
• Opportunity to work with cutting-edge technologies
• Collaborative and innovative work environment
• Professional development and growth opportunities

As a Full Stack Developer, you will be working on the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end

• Participating in the full development life cycle, including implementing design, coding, testing, and production release
• creating modules and components in React and coupling them together into a functional app
• Understanding the nature of asynchronous programming and its quirks and workaround
• Integrating multiple data sources and databases into one system
• Creating database schemas that represent and support business processes
• Driving innovation through rapid prototyping and iterative development

Desired Candidate Profile

• Develop, test, and deploy fast and scalable web apps
• Assist high-end web applications using , Node JS , Mongo DB , Angular9+
• Responsible for solving complex technical issues and giving quick solutions
• Active in client communication to understand functional requirements
• Assist in design, coding and testing
• Provide quick and simple technical solutions
• Ensure quality projects are delivered within defined timelines
• Maintain database to ensure strong optimization and functionalities
•  Designing and maintenance of fully functional large relational and non-relational databases
• Timely deployment of web apps on the cloud
•  Server management and cloud-based infrastructure
• Establishment and integration of development tools as required
• Identification of application issues when deploying the apps
• App deployment on the cloud along with solving debugging issues
• Coding architecture for frontend and backend
• Building interactive consumer data
• Creating features in apps that have a mobile responsive design
• Testing applications and fixing bugs, along with security and data protection features
• Establish code architecture decisions for supporting scalability and good performance
• Makes use of popular front-end frameworks like Bootstrap, LESS, etc and design UI components
• Participation with developers for the creation of scalable RESTful APIs
• Conducting code reviews of developers

• A Bachelor’s in a related computer science field.
• Expertise and experience in the four main technologies – MongoDB, ExpressJS, Angular, and NodeJS
• Knowledge of HTML/CSS, jQuery, Python, OOPS, UI/UX design, AWS, Git, and design framework, web services, JSON, AJAX, cryptography, and security,
• Experience implementing applications using Angular or React
• Experience creating front end applications using HTML5, Angular, LESS/SASS frontend CSS frameworks like Bootstrap, etc.
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular
• Hands-on experience with JavaScript Development on both client and server-side
• Experience with modern frameworks and design patterns,
• Experience with cloud technologies also a plus

We are looking for ambitious hands-on coders who love building web based applications from the ground up and have a special affection for all things JavaScript.

Responsibilities:

• Develop robust, web-based applications interacting with database filesystems and APIs
• Obsess about code quality and readability
• Remain updated on new and evolving client-side technologies, their application to our functionality or architecture goals
• Work closely in a multi-disciplinary structure to deliver world class solutions across web, mobile, and tablets
• Identify and establish best practices and frameworks keeping in mind parameters of performance, responsiveness, security, maintainability, extensibility, and reuse

Must have:

• At least 3 years of experience in developing web based applications with experience in Node.Js
• Skilled at Object Oriented JavaScript and having a working knowledge of at least one of the following MVC Frameworks (Angular, Backbone, Ember, React etc.).
• Knowledge of database, preferably some NoSQL DB like Mongo.
• Familiar with Git version control system

Skills

• 3 to 7 Years of experience in Full Stack Technologies-  Express, Lambda, SQL, React, Node JS, Java
• Knowledge of web framework.
• Able to create database schemes that represent and support business processes
• Having a Start-Up experience is a plus
• Having a degree from Premier Engineering Institute is a plus

KRA 

• Work collaboratively in architecture/developing/maintaining solutions Design, efficient, testable, reusable, reliable, and clean code using best software development practices
• Contribute towards the entire development life cycle of analysis, design, implementation and test
• Integration of user-facing elements with server-side logic
• Automation, including writing unit and integration tests
• Maintain high standards of quality for code technical documentation, and deliverable
• Detect, report, investigate, and fix product defects
• Stay abreast of emerging technologies/industry trends
• Ability to learn a lot quickly
• Be active in the community by participating in meetups and conferences
• Participate in brainstorming and idea generation activities.

What Makes You A Great Fit

• Ability to communicate clear timelines and the ability to over achieve them
• Fast Learner, very good interpersonal skills, positive attitude
• Ability to pick something new and learn it fast whatever way possible

Location : 

 As Grip is a company started during the Covid-19 Era we believe in working from wherever you want and meeting you virtually every now and then.  

About the compnay : Grip:

GRIP is an online fintech company aimed at providing a convenient, hassle free investment experience through investing in physical assets. The company kickstarted its journey in 2019 and was founded by Nikhil Aggarwal, who previously served as the COO of Chalo and Vice President of Morgan Stanley. He also worked for the World Bank.

The leasing industry in India remains largely unexplored and GRIP's objective is to make retail investors aware of it as an investment option. Through GRIP, one can invest in physical assets leased to corporates and earn stable monthly returns. The proposition is not as volatile as the share market and the returns are extremely healthy. GRIP focuses on the employed upper-middle class spectrum and aims to provide an effective alternative to these investors.

Why Grip :

While we offer competitive cash compensation along with ESOPs to participate in our long-term growth, the real upside is simply the challenge ahead and the awesome, friendly team by your side. And an opportunity to learn and grow at a breakneck speed as we redefine the contours of finance for Investors in India.

•  You will ne Responsible for revamping of existing LMS Platform along with designing and developing new projects.
• Researching, designing, implementing and managing software programs
• Testing and evaluating new programs
• Identifying areas for modification in existing programs and subsequently developing these modifications
• Writing and implementing efficient code
• Determining operational practicality
• Developing quality assurance procedures
• Deploying software tools, processes and metrics
• Maintaining and upgrading existing systems
• Training users for new modules
• Hands on experience in LMS or CRM will be preferred
  • Good knowledge on MySQL, ES6, Node.js, SaaS, AWS, Bootstrap and Css3
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