
About Vijay Sales
Vijay Sales is a leading eCommerce and retail brand delivering exceptional experiences to customers across India. Leveraging technology to enhance shopping experiences, we are on a mission to create seamless omnichannel platforms and innovative solutions for our customers. Join our dynamic team to shape the future of retail technology.
Role Overview
As a Lead Backend Engineer, you will drive the development and optimization of robust backend systems for our products built on the MERN (MongoDB, Express.js, React, Node.js) stack. You'll lead a talented team of developers, design scalable architectures, and ensure the seamless integration of backend functionalities with our frontend systems.
Key Responsibilities
- Lead the design, development, and deployment of backend systems for Vijay Sales' products.
- Architect scalable, secure, and high-performance APIs and microservices.
- Mentor and guide a team of backend developers, ensuring best practices in coding, architecture, and DevOps.
- Collaborate with cross-functional teams, including frontend engineers, DevOps, and product managers, to deliver end-to-end solutions.
- Optimize database structures and queries for performance and scalability.
- Implement and oversee CI/CD pipelines to streamline deployment processes.
- Troubleshoot and resolve performance bottlenecks, security issues, and other technical challenges.
- Stay updated on industry trends, tools, and technologies to continuously improve our stack.
Skills and Qualifications
Must-Have:
- Proven experience as a backend engineer with expertise in the MERN stack (Node.js, Express.js, MongoDB).
- Strong understanding of RESTful APIs and GraphQL.
- Proficiency in database design, indexing, and optimization (MongoDB is preferred).
- Hands-on experience with containerization tools like Docker and orchestration platforms like Kubernetes.
- Strong knowledge of authentication/authorization frameworks (JWT, OAuth2).
- Experience with cloud platforms like AWS, GCP, or Azure.
- Proficiency in DevOps practices, including CI/CD pipelines and version control systems (Git).
- Excellent problem-solving skills and a proactive attitude toward innovation.
Nice-to-Have:
- Experience in building scalable eCommerce platforms or omni-channel systems.
- Knowledge of front-end technologies (React.js) for seamless backend integration.
- Familiarity with message brokers.
- Serverless and Micro Architectures
- Exposure to AI/ML-driven applications for personalization and recommendation engines.

About Vijay Sales
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About Gobillion
Gobillion is a YCombinator backed IIM-NIT alumni co-founded social commerce startup headquartered in San Francisco, USA with offices in New Delhi, Bangalore and Guwahati. We are bringing e-commerce 2.0 to the next 400 million online customers across India, through a community and social driven approach. Our co-founding has diversified experience with prestigious organizations including McKinsey & Company, Deloitte US, EY, Adobe and SAP Labs.
Gobillion has been rapidly scaling and is backed by some of the world’s most prestigious investors from US, Europe, SE Asia and India including - YCombinator, Justin Mateen (Founder - Tinder), Pioneer Fund, Soma Capital, Venture Souq, Goodwater Capital, LetsVenture, Vikalp Sahni (Co-Founder- Gobibibo) amongst others.
We have been selected for and globally validated by the world’s leading investors/accelerators including YCombinator, Founder Institute Silicon Valley, NASSCOM 10000 Startups - India and Assam Startup. We have been named as the Top 10 Global startup for YCombinator S21 by Alex Mitchell.
Summary of role: As a Developer, you will be working alongside our product team in the conceptualization, design and development of server side components. You will be doing the following on the job
- Write clean, manageable code and maintain proper documentation
- Create, test and deploy and maintain the applications on production servers
- Continuously discover, analyze, and implement new technologies and frameworks to maximize development efficiency
- Lead team in crafting solutions in different areas and ensure timely delivery
- Ensure secure architecture for Servers
Why Join Us?
- You will have a chance to be a leader and have the responsibility to scale Gobillon across India's most fast growing cities
- The opportunity to join one of India’s fastest growing companies at an early stage - We are giving our early team members to benefit from a strong ESOP pool and be part of our growth journey
- Joining an amazing team of Gobillion rockstars from colleges like IIMs, IITs, NITs etc. and from organizations including McKinsey & Company, Deloitte US, EY, Adobe, SAP Labs, Urban Company, Udaan, Amazon, Delivery, Ninjacart, Accenture etc.
- Wear the Gobillion badge with pride - We are looking for owners with a founder’s mindset - not just employees. If you are passionate about our mission about making e-commerce social for the next 400M customers in India and serve as culture carriers - we are the right place for you!
Key Responsibilities of this Role:
- Experience with DevOps and writing REST APIs & Micro services architecture
- Strong programming expertise in Node js, Nest Js
- Good understanding of Mongo databases and other NoSql Databases and SQL Database
- Solid hold on Data structures and Algorithm
- Good understanding of System Design
- Development expertise in AWS services like Lambda, SQS, SNS
- Good understanding of DevOps and Server security
- Exposure to Cloud Platforms like AWS (preferred), Azure or Google Cloud
- Unix command line experience
- Well-versed with Software Development Life Cycle
- Demonstrate the ability to be a self-starter and learn quickly
- Excellent analytical and problem-solving skills
- Passion for learning and implementing new technologies
- Excellent understanding of software Architectures
you will be;
* Developing services with TypeScript (with Node.js) in Lambda
* Assisting with the design and evolution of their DevOps tooling
* Building their Amazon Web Services environment
* Performance tuning and optimisation
* Continually developing your skillset as required to ensure that the best technologies and methods are used
* Maintaining focus on security
* Working within a truly Agile environment, participating in daily stand-up meetings
* Collaborating with the rest of the development team and business to meet objectives
Key Skills Required;
* TypeScript * JavaScript (ES6+) * Node.js * Amazon Web Services, in particular AWS Lambda, * Experience working within an Agile environment * Excellent communication skills, with the ability to work in partnership with both business and technology teams * Proactive and truly passionate about technology * Degree level education in Computer Science (or equivalent), or similar experience * Willingness to continually learn new languages

Developer should have 2-4 years of experience, with a indepth knowledge on how web/mobile app works.
Should have the following knowledge
- RESTful APIs, Python and Django or flask
- Database concepts (MySQL, PostgreSQL, MongoDB, Redis)
- GraphQL
- Version Control tools (Git)/Github/BitBucket
- Ability to communicate and have good writing skills
- Familiarity with multi-threaded applications
- Understanding of Linux Environment and unit test and debugging skills


Our client is a call management solutions company, which helps small to mid-sized businesses use its virtual call center to manage customer calls and queries. It is an AI and cloud-based call operating facility that is affordable as well as feature-optimized. The advanced features offered like call recording, IVR, toll-free numbers, call tracking, etc are based on automation and enhances the call handling quality and process, for each client as per their requirements. They service over 6,000 business clients including large accounts like Flipkart and Uber.
- Selecting appropriate Cloud services to design and deploy an application based on given requirements
- Migrating complex, multi-tier applications on Cloud Platforms
- Designing and deploying enterprise-wide scalable operations on Cloud Platforms
- Implementing cost-control strategies
- Developing and maintain the CI/ CD pipeline for the assigned projects
- Conducting code reviews, and make technical contributions to product architecture
- Getting involved in solving bugs and delivering small features
- Fostering technical decision making on the team, but taking final decisions when necessary
- Understanding engineering metrics and seeking to improve them
- Understanding the requirements from the Product team, plan and execute.
What you need to have:
- Expert in designing Software and System architecture.
- Must have knowledge of Python (PHP knowledge is a plus) and related tools.
- Must understand MySQL queries and optimization.
- Must be able to build high performance teams.
- Must have worked with similar technologies: redis, docker, AWS, elasticsearch.
- Must know about microservice architectures and CI/ CD pipelines.
- Must be great at planning, researching and communicating.
- Must have a good understanding of application metrics.


The B2B manufacturing industry has a lack of digitisation globally. NowPurchase is building layers of technology to help improve the productivity and profits of the manufacturer. For this we are building the OS (Operating System) that will seamlessly connect factory equipment such as furnaces and spectrometers to our software systems that provide real time optimisations.
The end-game is to use this interconnected system to do great production planning and autonomous procurement of their raw materials. The Heart of NowPurchase will be a marketplace consisting of these smart factories and raw material suppliers.
Here a video that explains our product journey:
[https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21](https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21)
**Role Description**
NowPurchase is looking to add an immensely talented Backend Developer that will help us invent, design, refine and deliver products that will meet the above vision.
- Expect to build a lot of services and APIs in the cloud and stand-alone IoT devices to serve both the browser as well as native IoT enabled terminals that will be placed at the manufacturers' premises.
- Expect designing algorithms that model the metallurgy of the manufacturing processes as well as using tools such as linear programming, machine learning etc.
**What are the expectations from this role?**
- Deliver high quality modular code deployed to serve web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets. This would include algorithms for real time optimizations that are critical for the manufacturing process.
- You are empowered to work directly with leadership and the product team to make decisions about your code and future of the product.
- Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
- Own your Agile projects and responsible for software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
- Collaborate on the end to end design and implementation of the platform, including data modeling, systems architecture, data security, access controls, architecture, user experience, deployment, automation, and monitoring.
- Maintain a high level of data integrity, quality and security checks.
- Develop data pipelines and RESTful services that are distributed, robust and highly performant.
- Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
**Qualifications and Experience**
- 1+ years of demonstrated software engineering experience in an agile environment designing, architecting and implementing robust scalable systems preferably for modern SaaS application
- Experience with modern server-side programming languages such as Python, Scala, Go. Experience with web frameworks such as Django Rest Framework, Flask.
- Experience with architecting asynchronous services with design patters leveraging PostgreSQL, MongoDB, Redis, Celery for storage and multi-tenant servers over AWS Elastic BeanStalk.
**Compensation & Benefits**
- **Cash Compensation:** As per industry standards & pedigree of candidate
- **ESOPs:** 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
- **Medical Insurance:** Benefits of group insurance of 3 lakhs for family including parents, spouse, children
- **Generous leave structure and WFHs** including Marriage, Maternity & Paternity leaves
- **Complete Relocation Expenses:** We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.
**Possible Growth path**
Backend Developer > Senior Backend End Engineer > Engineering Manager > VP of Engineering
## **Tech Stack**
- React/Redux
- Python/Django/Celery
- Git, AWS, ELB (Elastic Beanstalk), Netlify
- PostgreSQL/Redis/S3
**Hiring Process**
1. Screening of applicants & initial telephonic call with Manager -HR
2. F2F/Video Interview with Engineering Manager and Cofounder CTO
3. Take home written assessment
4. F2F/Video Interview with Cofounder CEO
5. Email communication on final feedback
The end to end process shall take less than 10 days. We pride ourselves on being transparent & moving fast.
*Candidates who accept an offer may join within 1 hour, 1 week or up to 45days of signing - though, we have a preference for as short a gap period between signing and joining since we're at the most exciting part of our journey - laying the foundation for the NowPurchase platform!*

We are looking for a Full stack developer responsible for managing and enhancing web
applicationsthat interchange of data between the server, the users and SAP. Your primary focus will
be full stack development ensuring high performance and responsiveness .You will also be
responsible for automated testing and continuous integration.
Responsibilities
Design, build, and maintain efficient, reusable, and reliable Web application using React,
Node.js or Ruby on Rails and GraphQL
Full stack development (UI, API, Service, Data storage)
Integration of data storage solutions (nosql), SAP and third party applications.
Identify bottlenecks and bugs, and devise solutions to these problems.
Maintain the application quality, organization, and automation.
Skills
Experience of designing and building web applications in cloud, preferably Azure.
Experience with React, Node.js or Ruby on Rails, GraphQL along with other common
libraries such as RSpec and Resque.
Full stack development (UI, API, Service, Storage)
Strong knowledge of SDLC, Git based versioning systems and CI/CD, automated
functional and integration tests.
Good understanding of no sql database, preferably Postgres.
Good understanding of Agile methodology - Scrum.
Experience
4-6 years
Work Location- Remote (Any City or semi urban)
Budget- 10-25lpa
Notice Period- Maximum 1 month
We are looking for a Node.js Developer responsible for managing the interchange of data
between the server and the users. Your primary focus will be 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. You will also be responsible for integrating the
front-end elements built by your co-workers into the application. Therefore, a basic
understanding of front-end technologies is necessary as well.
Must-Have:
● Strong proficiency with JavaScript.
● Hands-on experience with HTML, CSS, and AJAX.
● 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 understanding of server-side templating languages. (such as Jade, EJS, etc
depending on your technology stack)
● Development experience designing object-oriented JavaScript and SVG.
● 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.
Good to have:
● Proficient understanding of code versioning tools, such as Git.
● Understanding accessibility and security compliance.
● Typescript and Mongo DB knowledge.
● Knowledge of REST & GRPC.
● Understanding of containerization (Docker).
Responsibilities:
● Writing reusable, testable, and efficient code.
● Writing API Documentation.
● Design and implementation of low-latency, high-availability, and performant
applications.
● Implementation of security and data protection.
● Integration of data storage solutions (may include databases, key-value stores, blob
stores, etc.).
● Integration of user-facing elements developed by front-end developers with server-side
logic.



- Have proven experience of working on back-end web frameworks like RoR (preferable) or Python/Django or Node.js
- A good command over at least one JavaScript frameworks like React.js, Vue.js or Angular
- Be excellent in understanding of relational database structures, have knowledge of unstructured databases (NoSQL) will be an added advantage
- Possess expertise in object-oriented design, unit testing, integration testing, data structures, algorithms, scalable APIs, etc.
- Have knowledge of working on cloud technologies and exposure of AWS services (EC2, RDS, S3, etc)
- Have the ability to work in a fast-paced environment and make pragmatic engineering decisions in a short amount of time
- Have an Understanding of the - Agile- behavior and reflection of the same

