
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

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Job Description – Sr. Full Stack Developer
Summary
You will be responsible for the full software development Lifecyle.
Core Accountabilities
- Motivate, develop, coach, and formally appraise the Software Development team.
- Monitor & co-ordinate any management information and capacity relating to the work of the team.
- Responsible for leading the software development team and providing technical guidance.
- Responsible for full stack, architectural, solution design specification and documentation.
- Responsible for the design, development, modification, maintenance, testing and deployment.
- Develop fully integrated back-end to front-end innovative solutions.
- Design, develop and maintain database solutions associated to data driven platforms.
- Develop to high quality coding standards.
- Responsible for project version control, coding standards, branching strategy and deployment.
- As part of the full development life cycle you will be responsible for continuous integration testing, Unit Testing and Performance Testing.
- Provide advanced technical support escalated from the development support team for all Voyager systems, solutions, and data sets.
- Scope and define detailed product backlog item descriptions that feed into sprint planning.
- Provide effective technical analysis, design requirements and relevant documentation.
- Using appropriate tools to define and communicate the required solution. These may include user journeys, prototypes, and wireframes.
- Coordinate release and sprint planning & conduct daily scrum meetings.
- Develop and maintain a thorough and up-to-date working technical knowledge of digital solutions and the Voyager Worldwide product suite.
- Develop and maintain a detailed technical understanding of our products, systems, technologies, architecture, and data sets.
- Develop and maintain a thorough and up-to-date working technical knowledge and understanding of AI, ML and RPA technologies.
- It should be noted that the above list of main duties and responsibilities is not necessarily a complete statement of the final duties of the post.
Qualifications & Experiences
- 8+ years’ software engineering experience in developing data driven based software solutions.
- 2 years’ leading end to end full stack design, development and implementation.
- Excellent working technical knowledge and understanding of AI, ML and RPA technologies.
- C#.Net: i.e. (.Net Frameworks, WPF, WCF, MVC, MVVM, XAML, Xamarin)
- Python: i.e. (TensorFlow, Keras, Theano, Scikit-learn, PyTorch, NumPy, Pandas)
- JavaScript: i.e. (ES6, Node.js, NPM, Sails.js, Ember.js, React, Mocha, Electron)
- JavaScript framework experience (e.g., Ember, React, Angular)
- jQuery, CSS, and HTML
- Excellent working knowledge and understanding of version control systems such as SVN, TFS & GIT.
- Strong SQL Database design and programming skills.
- Excellent working knowledge and understanding of project management tools such as VSTS DevOps
- Be responsible for the research, design, development, and deployment of all products and platforms
- Proficient full stack web developer with experience in building large-scale applications.
- Ensure that the platform remains secure, scalable, sustainable.
- Set the bar for the quality of code, software engineering practices, communication skills, dealing with complexity and ambiguity.
- Hire all technical roles
- Strong analytical, problem solving, and troubleshooting skills
- Experience in working with MERN Stack (or any other stack)
- Strong foundation in computer science fundamentals: data structures, algorithms, and coding
- Excellent knowledge of Design Principles/patterns and Architecture Principles
- Expertise on AWS
- Design and build Scalable Web Applications
- Experience in DevOps Processes
- As a Tech Lead you will be expected to adapt to a dynamic work environment. Stay updated with latest in technology
- Own the product release end to end
- Ability to think Out of Box to create innovative solutions
- Strong technical acumen and cross-functional familiarity with Product Management and UX
- Experience in a young startup and build products from scratch
Responsibilities:
- Expertise in back-end programming language JavaScript , TypeScript , NodeJs
- Writing HTML , CSS , and JavaScript
- Working with RDBMS such as Postgres or MySQL
- Experience implementing testing platforms and unit tests Proficiency with Git Appreciation for clean and well-documented code
- Understanding of microservices and distributed systems
Good to haves:
Experience working with AWS infrastructure Docker or Kubernetes Message queues such as Kafka CI/ CD tools such as Jenkins
Requirements:
- Proven work experience as a Back-end developer In-depth understanding of the entire web development process (design , development and deployment)
- Hands on experience with programming languages like Node.js , Javascript Familiarity with front-end languages (e.g. HTML , JavaScript and CSS)
- Excellent analytical and time management skills
- BE/Btech degree in Computer Science or relevant field
Required Skills:
Back-End Programming, JavaScript, TypeScript, NodeJs, Testing, Node.js, SAAS Product, IT Services, Profitability, ERP, SaaS, IT Service, Web Applications, B2B, Self-Driven, Writing, HTML, CSS, RDBMS, Postgres, MySQL, Git, Microservices, AWS, Infrastructure, Docker, Message Queues, Kafka, CI/CD, Jenkins
• Proficiency in Java, JavaScript, and sufficient knowledge of database concepts to write
efficient queries
• Working experience in one or more of React, Redux, Typescript, and associated tools such as
Webpack, Grunt, Gulp etc.
• Working experience in HTML, (S)CSS
• Working experience writing unit/functional/integration tests
• Knowledge of Java 8 features such as streams and lambdas is a plus
• Knowledge of REST concepts and design is a plus
• Knowledge of ES6 features/syntax is a plus
• Knowledge of functional programming concepts is a plus
• Knowledge of build/deploy tools such as Ant, Maven, Gradle, Ansible, Chef, Puppet etc. is a
plus
• Knowledge of one or more scripting languages such as Awk, Bash, Perl, Python, Ruby etc. is
a plus
• Ability to use modern IDEs such as VSCode, IntelliJ IDEA, Eclipse etc. is a plus
• Knowledge of container technologies such as Docker, Kubernetes, etc. is a plus.
We are looking for a driven, curious, and sincere full-stack software engineer having 1-4 years of professional experience. They will be assigned to a 0 to 1 project which presents a great opportunity to learn and grow.
Roles & Resposibilities:
- You will be involved in full-stack development
- Working on relational as well as non-relational databases.
- Writing and maintaining high-quality code.
- Learning the code base and improving your coding skills.
Desired skills and qualities:
- Bachelor's degree in computer engineering or related field.
- At least 6 months of full-time or internship experience in Javascript.
- Data structures and algorithms.
- Strong understanding of object-oriented programming.
- Ability to communicate ideas clearly(verbal/written).
- HTML and CSS.
- 2-5 years relevant work experience in building multiple users software solutions
- 1-2 years hands on experience building cloud based web and mobile applications
- JavaScript, React, NodeJS, structured and unstructured store
- Strong Front End or Back end experience
- Hands on experience building Restful APIs
- Hands on experience building microservices based applications
- Understanding of DevOps / DevSecOps processes and related tools including, but not limited to, IaC (Terraform, CloudFormation), config management (Chef, Puppet), Git / Bitbucket, or Jenkins, etc.
- Hands on experience with multiple frontend or backend technologies (either) / frameworks / platforms supporting web and mobile applications – Such as: NodeJS, Python, Django, Flask, PHP, Laravel, jQuery, Bootstrap, Angular, Vue.js, ReactJS, Bootstrap, React-Native, Flutter, iOS SDK, or similar.
- Hands-on end to end experience of multiple application development frameworks, monitoring tools, and deployment methodologies
- Experience building and deploying with container technologies such as Docker and Kubernetes and leveraging them throughout the CICD process
- Understanding of practices regarding system security measures
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
Experience: 4 to 6 years prefreable.
Knowledge of Node.js and frameworks available for it (such as Express, StrongLoop, etc depending on your technology stack)
Understanding the nature of asynchronous programming and its quirks and workarounds
Good with REST Api and integration of many API's in our backend
Good understanding of server-side templating languages (such as Jade, EJS, etc depending on your technology stack)
Understanding accessibility and security compliance
User authentication and authorization between multiple systems, servers, and environments
Integration of multiple data sources and databases into one system
Understanding fundamental design principles behind a scalable application
Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
Creating database schemas that represent and support business processes
Implementing automated testing platforms and unit tests
Proficient understanding of code versioning tools, such as Git
Good Code writing skills
Integration with Shopfy, Zoho, ERP, CRM is a plus.









