
SellerGeni is an early-stage VC Funded SAAS Product in the Ecommerce Growth space. Our products GrowZ and SmartPlug enable sellers on Amazon to grow their sales and improve the quality of their listings through automated tools. Our vision is to simplify Growth across all ecommerce channels. We make traffic generation as simple as launching a Shopify website. You will be working closely with key stakeholders across the organization and leading a team of motivated engineers and professionals trying to change the status quo in online business growth. Join us if you love solving real-world problems with technically robust solutions.
Open to SDE-2, SDE-3, FSE & SWE.
What you will be doing
- Write test-driven code for Client and Server side application
- Creating functional codes that implement product requirements
- Participating in the design and creation of scalable software
- Testing and fixing bugs and/or other coding issues
- Take ownership of code, tasks and system architecture
- Brainstorming to scale the system for millions of users
- Mentoring juniors and champion the Agile Development Practices
What you need to have
- Knowledge of Javascript back-end languages & frameworks (e.g NodeJS, ExpressJS, GraphQL, TypeScript etc)
- Knowledge of Javascript front-end frameworks (e.g.NextJS, ReactJS, Angular etc)
- Experience in SQL/NoSQL databases (e.g. MongoDB, MySQL, DynamoDB, etc)
- Experience in building and maintaining large-scale production (e.g Redis, Jobs, Queue, Async sockets, etc)
- Knowledge of modern javascript libraries (e.g JWT, Webpack, Browserify, jQuery, Bootstrap, Semantic etc)
- Decent understanding of networking technologies (e.g TCP, HTTP, websockets, server-sent events, etc)
- Excellent communication and teamwork skills
- Good understanding of System design, architecture and Web Security
- Knowledge of version control software like Git, Github, BitBucket
Nice to have
- GSoC (or) Open Source contributions
- Prior startup (or) SAAS product experience
- Experience with building B2B products
- Amazon SP-API, MWS and advertising API
- Consumer Web Development Experience for High-Traffic, queue based applications
- Software security and SDLC
- UI/UX Product design & decision
- Experience in development workflow integrations (e.g CI/CD, Docker, Kube, pods, etc)
- Experience in building REST APIs, server-side architecture
- Decent understanding of Cloud & DevSecOps (e.g ECS ELB, SSM, SQS, Lambda, Kafka etc)
Benefits
- Competitive Salary & Equity
- MacBook Pro
- Flexible Work Timings
- Work With Experienced Team (Ex Amazon, Paytm, Oracle & GSoCers)
Total Experience : 2-6 years Relevant Experience: 2-3+ years

About SellerGeni
About
SellerGeni is an early-stage VC Funded SAAS Product in the Ecommerce Growth space. Our products GrowZ and SmartPlug enable sellers on Amazon to grow their sales and improve the quality of their listings through automated tools. Our vision is to simplify Ecommerce Growth across all channels. We make traffic generation as simple as launching a Shopify website. Come join us if you love tackling complex problems like these and changing the way an industry works.
Connect with the team
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About the Role :
We are seeking a highly skilled Lead Software Developer with a strong background in SaaS product development and expertise in designing scalable, secure, and resilient systems. You will lead the technical architecture of our cloud-native platforms, manage cross-functional
engineering efforts, and implement best practices across backend, frontend, and infrastructure layers.
This is a leadership role based on-site in Jaipur and ideal for someone who enjoys solving complex system challenges and building high-impact software.
Key Responsibilities:
● Lead the design and implementation of scalable SaaS application architecture
● Architect and develop solutions using Laravel, NestJS, Node.js, and AWS
● Build and manage microservices and serverless infrastructure for high availability and maintainability
● Implement and manage asynchronous and parallel request handling for optimized system performance
● Design and scale load handling and queue management systems using BullMQ and Redis
● Develop and integrate real-time data workflows using webhooks and external APIs
● Configure and manage Node.js clusters for performance and fault tolerance
● Collaborate with frontend developers working on React and Vue.js to deliver seamless UI/backend integration
● Ensure code quality, observability, and maintainability across services
● Monitor, debug, and resolve issues in production using logs and performance tracking tools
● Drive CI/CD implementation, infrastructure automation, and DevOps practices
Required Skills & Qualifications:
● 5 - 7 years of experience in full-stack or backend software development
● Proven experience as a Lead Developer on SaaS products
● Proficient in Laravel, NestJS, and Node.js
● Deep understanding of BullMQ, Redis, and message/queue-based architectures
● Experience with asynchronous processing, parallel request handling, and load distribution
● Proficient in microservices and serverless architecture patterns
● Strong command of AWS (EC2, Lambda, RDS, S3, API Gateway, IAM, CloudWatch)
● Hands-on experience with webhooks, job queues, background tasks, and rate-limiting strategies
● Familiarity with Node.js cluster mode and scaling strategies
● Solid experience in debugging, tracing, and performance monitoring
● Frontend integration experience with React or Vue.js (please specify your exposure)
● Strong leadership, collaboration, and mentoring abilities
Preferred Skills (Nice to Have):
● Experience with Docker, Kubernetes, and CI/CD pipelines
● Exposure to event-driven architecture and multi-tenant SaaS platforms
● Familiarity with observability tools such as Grafana, Datadog, or New Relic
1. Developing backend using node.js and express
2. Working on MongoDB database
3. Doing front-end development with react.js
- Lead, Design, develop, and maintain full-stack, web-based applications, and toolchains.
- Design and develop internal and external business systems/applications, systems interfaces, databases,
- reporting, or business functionality
- Work with development and BA teams and project manager to ideate software solutions
- Participate in client communication & effort estimations for new projects/feature development.
- Translate business and functional requirements into documented technical specifications
- Utilize development skills to build (code) new systems functionality per technical specifications, with deliverables to include code builds and automated unit tests
- Perform Code Reviews for all code written by the other developers, review code for team and industry standards compliance, and provide feedback to developers.
- Collaborating with other developers using version control (git).
- Facilitate/lead reviews of technical specifications and program code with other members of the technical team, and communicate design, requirements, feature set, functionality and limitations of systems/applications to the team
- Guide and mentor junior full-stack developers.
About the company:
CogniTensor is an analytical software company that brings data to the heart of decision-making. CogniTensor leverages its product, DeepOptics - an integrated platform to implement 3A (Automation, Analytics and AI) at scale.
Cognitensor has customers ranging in Finance, Energy, Commodity, Retail & Manufacturing. More details can be found on our website: https://www.cognitensor.com/">https://www.cognitensor.com/
Our strategic investors include Shell and CIIE.CO (IIM-A/Accenture).
Qualification & Experience:
- BE/B.Tech Degree in Computer Programming, Computer Science, or a related field.
- +2 years experience as a Software Developer.
- Hands on experience in developing finance applications is must
Roles & Responsibilities:
We are looking for a Full Stack Developer 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.
As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility. Along with familiar with Agile methodologies and testing skills
- Work with development teams and product managers to ideate software solutions
- Design client-side and server-side architecture
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Write technical documentation
- Excellent communication and teamwork skills
Technical Skills:
Must Have
- React JS
- Git / Bitbucket,
- Express JS, Python, HTML, CSS, Node JS
- CI/CD like CircleCI
- Postgres or any DB knowledge
- Familiarity with AWS or Azure or both
Good to Have
- Docker
- Redux
- Android development
- React Native
- Electron
- GraphQL
- Jira
What’s in for you:
- An opportunity to lead a business segment
- Extensive liaising with customers and partners
- A rewarding career progression
Preferred Location:
Delhi NCR
Responsibilities
-
Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo
-
Binding of UI elements to JavaScript object models
-
Creating RESTful services with Node.js
-
Architect scalable web architectures
-
Work in a cross-functional team to deliver a complete user experience
-
Create Unit and Integration tests to ensure the quality of code
-
Be responsive to change requests and feature requests
-
Write code that is cross-platform and cross-device compatible
-
Ability to wear many hats and learn new technologies quickly
-
Own the back end and front end stack
-
Build the mobile app in react native
-
Build the web front end using react js
-
Build the backend in nodejs, express and mysql
-
Build the data platform in kafka, clickhouse and presto
-
You have experience working with reactjs, nodejs
-
you can write scripts using python
-
you have some exposure to database systems like postgres, clickhouse,
-
you like learning new technologies
-
you prefer working in high impact small teams
Job Overview :
This Jr. Developer position has design, development and maintenance responsibility for the software applications and processes associated with our product oriented company. This role will initially focus specifically on the developing application as per requirements provided by the product owner.
Job Responsibilities:
- Understand our client's infrastructure and technical environment to provide best of breed technical consulting services.
- Diligently monitor, optimize and report on integration and deployment performance for key accounts against KPIs, with proactive cross functional and internal communication on customer deployments.
- Regular consultation with cross functional teams on account deployments to ensure optimal performance and delivery.
- Handle technical troubleshooting
Job Requirements:
- B.E/B.S/B.Tech in Computer Science or Computer Engineering.
- Must have minimum 2-4 years of experience in the Angular-Node-PostgreSQL tech stack. (proof of experience to be submitted for verification on request)
- Should have worked on Architect / Consultant role in the tech stack.
- Proficient in Object Oriented Programming.
- Experience in performing SQL queries on a RDMS especially in PostgreSQL.
- Extensive experience in Angular Front end and Node – Express server side.
- Good at API development & integration, debugging and fixing the issues with API.
We are looking for a passionate full-stack developer to be responsible for all platform-related duties, from developing designs for complicated applications to analyzing code. The key responsibilities include writing and testing code, debugging programs, and integrating applications with third-party web services, optimizing applications, ensuring UI/UX feasibility, and implementing API designs and architecture.
You should know python and use server-side logic. Ultimately, you'll build highly responsive web applications that align with our business needs.
Selected day-to-day responsibilities include:
- Writing effective, scalable, and sustainable code
- Developing back-end components to improve responsiveness and overall performance
- Integrating user-facing elements into applications
- Testing and debugging programs
- Improving the functionality of existing systems
- Implementing security and data protection solutions
- Assessing and prioritizing feature requests
- Ensuring the feasibility of UI/UX designs
- Coordinating with internal teams to understand user requirements and provide technical solutions
PHP
MySQL
Our Tech Stack:
React JS | Python | Django | Mongo | Elastic Search | AWS | Docker | Redshift








