
Lead Backend Developer Javascript
at Our client company is into Ecommerce(QS1)
- 5-10 years of experience in building API services using NodeJS Express and related frameworks
- Expert level understanding of NodeJS asynchronous runtime
- Expert level understanding of Javascript concepts on callbacks and closures
- Experience with Postgres, NoSQL, Redis, and Firebase real-time database
- Experience with AWS services like Elastic Beanstalk, Cloudfront, S3, EC2, Lambda, API Gateway, SQS, etc
- Understanding of patterns and techniques for building scalable back-end infrastructure including caching, rate limiting, authentication, and authorization schemes.
- Experience in building highly scalable and high throughput services with millisecond response times
- Experience working in a collaborative team environment
- Excellent communication & interpersonal skills
- Willingness to learn and pick up new technology along with patience to mentor
Bonus skills –
- Experience with Elastic Search, Puppeteer
- Experience writing unit test

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Job Title: Lead Software Engineer
Experience: 4 - 12 yr
Department: Software
Reports To: Senior Software Engineer / Software Architect
Purpose of the Role
The incumbent will be responsible for designing and developing robust software solutions for products in the domains of Warehouse Automation, Industrial Automation, Robotics, and IoT. The role includes defining software architecture, ensuring scalability and performance, and mentoring the development team to drive technical excellence and innovation.
Technical Skills Required
- Proven experience in designing, developing, and deploying high-volume, scalable applications.
- Expertise in distributed systems, microservices, and central system architectures.
- Programming & Frameworks: Proficiency in Java 17+.
- Experience with frameworks such as Spring, Hibernate, Kubernetes, and RESTful APIs.
- Knowledge of JPA, MS SQL, and database modelling/design.
- Hands-on experience with GCP, AWS, or Azure for cloud architecture.
- Familiarity with virtualization and containerization technologies.
- Strong skills in data modelling and database design.
- Knowledge of secure coding practices.
- Tech stack: Java, MSSQL, MySQL, Spring Boot, Redis, Data Structures, Linux, basics of Kubernetes.
Behavioural Skills Required
- Attention to Detail (Proficient)
- Problem Solving
- Decision Making
- Collaborative approach
- Adaptability to a volatile environment
- Accountability
- Good Leadership skills
Job Responsibilities
- Understand requirements and define database and application structure under guidance of Software Architect.
- Write high-quality, scalable, and efficient code.
- Prepare Functional Requirement Documents (FRD) based on inputs from BA team.
- Guide junior and mid-level developers and provide technical support.
- Collaborate to identify and fix technical issues in UAT/Production.
- Work closely to meet project deadlines.
- Take ownership of product implementations at customer sites.
- Hands-on development for assigned modules/products.
- Handle application performance in production.
- Work with customers to understand automation requirements.
- Review and merge code changes from the team.
- Conduct sprint meetings, demos, and resolve development roadblocks.
- Optimize code for performance and efficiency.
Primary responsibilities:
•Design, develop AWS IoT/Cloud-based applications using Typescript, Node.Js.
•Work closely with onsite, offshore, and cross functional teams, Product Management, frontend developers, SQA teams to effectively use technologies to build and deliver high quality and on-time delivery.
•Proactively Identify risks and failure modes early in the development lifecycle and develop POCs to mitigate the risks early in the program.
•Assertive communication and team skills.
•This individual be self-directed, highly motivated, and organized with strong analytical thinking and problem-solving skills, and an ability to work on multiple projects and function in a team environment.
Experience and Skills Required:
•More than 6 years of overall experience in Software domain.
•At least 3 years of experience in Cloud native applications.
•Solid working knowledge of Typescript, NodeJS.
•Thorough working knowledge in AWS, Lambdas, Microservices etc.,
•Experience in executing CI/CD processes
•Experience in Microservices Architecture
•Good Knowledge on Cloud security & security design control implementation.
•Knowledge of (AWS IoT Core) and In-depth knowledge of AWS cloud native services including Kinesis, DynamoDB, Neptune, Lambda, API Gateway, Timestream , IoT Core, GreenGrass, Aurora, Lambda, etc.
•Great knowledge in Agile/Scrum
Responsibilities
- Build reusable code and libraries for future use.
- Writing reusable, testable, and efficient code
- Own & build new modules/features end-to-end independently.
- Collaborate with other team members and stakeholders.
- Work in an agile environment to rapidly build high-quality and robust features.
- Participate in DevOps.
- Implementation of security and data protection.
Required Skills
- Master in Node.js and frameworks available for it. (Nest.js / Loopback / AdonisJS)
- Excellent understanding of ES6 and OOP.
- Good understanding of SQL & No-SQL Databases. (MySQL / PostgreSQL)
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Open Source and DevOps enthusiast.
- Comfortable with Test Driven Development.
- Can learn and adapt fast, as well as identify and solve problems.
Bonus Skills
- Hands-on with TypeScript
Job Perks
- Get to work with a highly passionate team of engineers.
- Open and embracing culture towards the latest hot technologies.
- A high level of freedom & responsibility.
- Having 2-4 yrs of experience
- Have good knowledge of front-end technologies, including HTML5, CSS3, JavaScript, j Query.
- Html to wordPress integration
- Must have Core PHP Knowledge
- Develop and maintain code for various PHP applications.
- Create unique designs.
- Develop website using wordPress
- Create new wordPress theme using various plugins
- User interfaces for websites and/or web applications.
- Good Communication Skills.
DUKAAN - Create Your Online Store in 30 Seconds
Dukaan is an app that allows offline businesses to sell their products and services online. On our app, the users can make beautiful product catalogs (catalogs) right from a smartphone and share with their customers easily on different social media apps such as Whatsapp Business, Whatsapp, Facebook, Instagram, etc. Praised by users all over India, this app has saved declining businesses by helping them transfer their shop online. The journey has just begun and we are on a mission to make India truly Digital.
Dukaan is currently powering over 5M e-commerce stores built by Indian small businesses and growing at a crazy rate.
We are looking for a Backend Engineer to join our team who will be part of our new innovations team.
Requirements:
- Strong knowledge of Django, Django Rest Framework, and their design principles.
- Strong knowledge of Django ORM, should be able to leverage it to write complex and optimized queries (E.x Q queries, Case, When, Select related, prefetch related, Subqueries, Annotations, Aggregations, Filtering, etc.).
- Should be able to override DRF serializers, filters, and view set completely according to needs.
- Should have good experience in Class-Based Views to write the backend API.
- Sound knowledge of database design patterns and modeling them to Django models.
- Sound knowledge of how to write test cases for the APIs.
- Should be able to write optimized pythonic code adhering to python PEP standards.
- Strong knowledge of python packaging and how to architect a codebase that should be easily scalable and not get cluttered.
- Strong knowledge of REST API design patterns.
- The ability to write RAW SQL queries and further database-level coding will be a plus.
- Good Understanding of python’s asyncio, threading, and multiprocessing library, their benefits and limitations along with their appropriate use cases.
- Hands-on knowledge of celery and its corresponding message broker such as RabbitMQ, Redis, etc.
- Experience with building a CDC(Change Data Capture) pipeline will be a plus.
- Experience with Apache Kafka, Kafka connect and Debezium will be a plus.
- Experience with open source will be a plus.
- Good knowledge of Algorithms and data structures.
Responsibilities:
- Understand the ins and out of the existing codebase and have a good grasp of it.
- Write clean, stable, and scalable code.
- Write unit test cases for the APIs.
- Do whitebox and blackbox testing for your own code and as well as others if required.
- Understand and implement fast prototype solutions for business needs.
• You will design high level architecture solutions, write high quality code, do code reviews
• You will take ownership to run and maintain the services in Cloud infrastructure
• You will continuously evaluate relevant technologies, influence and drive architecture and design discussions
You must have
• Strong desire to work at an early stage startup
• Strong desire to learn and improve yourself every day
• Strong hands-on development experience
• Proficiency in Computer Science fundamentals – object oriented design, data structures, algorithm - design, and complexity analysis
• Strong knowledge of sql/nosql databases
• Strong experience in developing Rest APIs
• Hands-on experience in developing and deploying MicroServices
• Experience with designing scalable architecture
• Strong knowledge of git
• Experience with redis, memcache
• Experience with Kafka, RabbitMQ
• Experience with ElasticSearch, Solr
• Experience with running applications in production, CI/CD
• Experience with performance tuning
• At least 2 year experience in leading a small team of developers
It would be nice if you also have
• Experience with Google Maps or similar technologies
• Experience with geospatial applications/libraries
Ruby and Rails
Creating JSON based web services from Ruby on Rails (RoR) apps
HTML5, CSS3, JavaScript, jQuery, CoffeeScript, Ajax, lodash/underscore.js
A firm grasp of object-oriented analysis and design
Good to have knowledge in any front end framework, Angular or above versions, Backbonejs, Ember.js
Should have extensive experience in Agile software development principles, practice, and process
Should have worked on enterprise-cl applications
RoR Performance tuning and scaling
Proficiency in English strongly preferred
A proactive and resourceful person who achieves with minimal oversight
Team player with the ability and desire to become an integral part of a fast-paced team
Good knowledge of relational databases MySQL, Oracle, Microsoft SQL Server, DB2 or similar
Hands-on experience with at least one of the NoSQL environments like MongoDB, Couchbase, Cassandra
Experience with text search systems like elastic, solr or similar
Hands-on experience in integrating with third-party REST APIs
Managing code with Git and other version control tools
Good to have knowledge of Nginx
What is the work?
- You will be a part of Technology Team, involved in all the stages of architecture to development of our web based applications product.
- Designing and developing applications using Microsoft Technologies (ASP.NET MVC, C#, ASP.NET Core) with Angular or React JS
- Writing detailed programs through discussion with clients, clarifying what actions the program is intended to perform
What skills and experience are we looking for?
- Minimum 3 years of working experience in .NET based application.
- Must have knowledge with Asp.net Core 2.0 or higher, Web API & C#.
- Must have atleast 1 year of current working experience into asp.net core along with either Angular or React JS.
- A good understanding of modern front-end web development techniques including HTML5, CSS3, JavaScript, knockout, angular, react js, and jQuery libraries.
-
Experience of debugging and troubleshooting websites and web applications.
- Knowledge of Azure and DevOps process and worked with 'Source control' (SVN/TFS/GIT/VSTS).
- Knowledge of Agile Development Methodologies like SCRUM.
- Willingness to learn and improve.
- Should possess strong problem-solving skills.
- Good Communication skills
- Has the ability to do multitasking and assist others by maintaining strong communication with colleagues and clients .









