
Senior Backend Engineer (Node.Js)
at A complete customer interaction and engagement platform
Roles & Responsibilities:
- Write well-designed, testable, efficient, and high-quality code.
- Design (LLD & HLD) and architect technical solutions for the business problems of a large-scale system.
- Prepare and produce releases of software components.
- Support continuous improvement by investigating alternatives and technologies.
- Contribute to all phases of the development lifecycle.
- Lead the backend engineering team with examples.
Requirements:
- 5+ years’ experience under your belt developing performance-critical applications that run in a production environment using Node.Js
- Expertise in Database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries.
- Expertise in common Cloud technologies, AWS/GCP Knowledge of CI/CD tools and workflows.
- Knowledge in one or more of the following: NoSQL (especially, but not only Redis), Queueing system experience (Kafka, RabbitMQ, ActiveMQ, MSMQ)
- Good stakeholder management skills, with an ability to build trust and rapport with internal and external stakeholders
- It is good to have knowledge of Kubernetes and Docker and related deployment technologies.

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- This role will be responsible for building, reviewing, deploying and maintaining the software solutions.
- Meeting with the development team to discuss user interface ideas and applications.
- Development experience in the CHATWOOT (https://www.chatwoot.com/) and other omnichannel tools.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly responsive user interface components using react concepts.
· Proven work experience as a Ruby on Rails developer
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
- Experience with user interface design.
- Experience with browser-based debugging and performance testing software.
· Demonstrable knowledge of front-end technologies such as JavaScript, HTML, CSS and jQuery
· Experience developing highly interactive applications
· A firm grasp of object oriented analysis and design
· Passion for writing great, simple, clean, efficient code
· Good knowledge of relational databases
· Working knowledge of NoSQL databases
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app.
Required Skills:
- 4+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast-paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Job Brief:
We are looking for experience in API and Node.js to produce scalable software solutions. You will be part of a cross-functional team that is responsible for the full software development life cycle, from conception to deployment. 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.
Responsibilities:
· Work with development teams and product managers to ideate software solutions.
· Design client-side and server-side architecture
· Build the front-end of applications through appealing visual design.
· Develop and manage well-functioning databases and applications.
· Write effective APIs.
· Test software to ensure responsiveness and efficiency.
· Troubleshoot, debug and upgrade software.
· Create security and data protection settings.
· Build features and applications with a mobile responsive design.
· Write technical documentation.
· Work with data scientists and analysts to improve software.
Requirements:
· Proven experience as a Full Stack Developer or similar role
· Experience developing desktop and mobile applications.
· Familiarity with common stacks
· Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, Nodejs and .Net)
· Familiarity with databases (e.g. MySQL, MS SQL, Mogo DB)
· Good to have- Cloud knowledge (Azure, AWS)
· Strong command on API Development with Nodejs
· Good to have- knowledge on multiple back-end languages ( Java, Python) and knowledge of JavaScript frameworks ( React, Angular, Node )
· Excellent communication and teamwork skills
· Great attention to detail
· Organizational skills
Technical Skills:
HTML, CSS, React, API, JavaScript, Node, SQL, and Cloud knowledge (Azure/AWS)
Experience – 4+ Years
3+ years of experience developing Backends using NodeJS. Should be well versed with its asynchronous nature, event loop, promises, and callbacks.
Node expressProficient in Node.js and working knowledge of JavaScript, JQuery, AJAX, HTML, CSS, and frameworks ( React.js)
Experience in Node JS MVC framework and Rest API frameworks like Express.
Experience developing desktops.
Experience in Mongo DB.
Familiarity with using AWS components.
Postman for documenting/testing APIs.
· 3+ years of Java backed application development and implementation experience.
· Minimum of one year of experience in Cloud, AWS Engineering & Development .
· Demonstrated knowledge of Distributed and Scalable systems.
· Experience on AWS Services is a big plus, such as EC2, ECS, ECR, Lambda, Elastic Cache, API Gateway.
· Knowledge about API design standards, patterns and best-practices especially Swagger and OpenAPI 3.0, REST, SOAP, MQ, JSON, Microservices etc.
· Java Microservices, RESTful Web Services.
· Spring Boot, Spring Cloud, Hibernate.
· JMS, queues, JBoss/Wildfly.
· Tools - JUnit, Easymock, Mockito, Docker, Kubernetes, Teraform.


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 Backend Developer who has 4-6 years of experience in designing, developing, and implementing backend services using Python and Django.
- Responsibilities-
- Design highly scalable, testable code and follow Test Driven Development methodology
- Able to write well-organized, modularised code with test cases.
- Contribute to the design and architecture of our backend APIs and deployment of microservices
- Ensure adherence to engineering best practices and maintain the overall quality of our codebase.
- Work with the product team to translate powerful ideas into everyday business value.
- Skills-
- Back-end programming language: Python
- Familiarity with Django or Flask framework
- Familiarity with AWS and Elastic Search
- Experience in SQL and NoSQL databases with an insight into various data modeling use cases
- Experience with system & unit testing
- Familiarity with containerized deployment
- Proficiency with Git
- Sound with data structures and algorithms and have a good understanding of design patterns, software architectures

Preferred Skills:
We want to really emphasize Spring Boot (2+ years although 1+ if candidate particularly strong) Using Redis as a caching technology with Spring Boot would be a strong plus
Using Redisson (a particular java client library that can be easily configured with Spring Boot) would be a strong plus
Knowledge of event based messaging systems (Amazon SNS, Amazon MQ, or Kafka (in AWS) Data Cleaning tools and techniques in CSV and Excel
Strong Knowledge of Spring Boot Dependency Injection and Configuration
Experience with APIs for popular e-commerce platforms (Magento, Shopify, Big Commerce, etc.)
SDLC (Software Development Lifecycle) Tools in the context of AWS. (Tools classified under DevOps)
Experience with managing AWS EC2 VM instances and using AWS managed Services (like S3, MySQL, VPC/Networking, Lambda, etc)
Performance Analysis Tools (Code Profiling) on Java VM and particularly Spring Boot
Experience in the development of Workflow or Business Process ApplicationsNice to Have:
Experience with Cassandra or MongoDB with Spring Boot
Horizontal Scaling with Spring Boot (considerations running multiple instances of Spring Boot instances)
Experience with placing Spring Boot applications in Docker/Kubernetes container ecosystems (especially in AWS)
Search technologies such as Lucene/Solr- should have at least 5 years of hands-on experience in backend software development using Java.
- should have proven expertise in Spring Boot REST/Microservices.
- should have used design patterns like MVP, MVC or MVVM and should know when to use which.
- should have working experience with relational and NoSQL databases.
- should have multiple years of experience with cloud application design and in one or more reputable cloud platform providers (e.g. AWS, GCP, Microsoft Azure … )
- should have professional experience working in an agile development environment.
- should have strong communication skills and like making decisions.
- should follow good software engineering principles such as TDD, writing modular, maintainable and clean code

