Backend Developer

Job Title : Python Django Developer

Experience : 3+ Years

Location : Gurgaon Sector - 48

Working Days : 6 Days WFO (Monday to Saturday)

Job Summary :

We are looking for a skilled Python Django Developer with strong foundational knowledge in backend development, data structures, and operating system concepts.

The ideal candidate should have experience in Django and PostgreSQL, along with excellent logical thinking and multithreading knowledge.

Main Technical Skills : Python, Django (or Flask), PostgreSQL/MySQL, SQL & NoSQL ORM, Microservice Architecture, Third-party API integrations (e.g., payment gateways, SMS/email APIs), REST API development, JSON/XML, strong knowledge of data structures, multithreading, and OS concepts.

Key Responsibilities :

• Write efficient, reusable, testable, and scalable code using the Django framework
• Develop backend components, server-side logic, and statistical models
• Design and implement high-availability, low-latency applications with robust data protection and security
• Contribute to the development of highly responsive web applications
• Collaborate with cross-functional teams on system design and integration

Mandatory Skills :

• Strong programming skills in Python and Django (or similar frameworks like Flask).
• Proficiency with PostgreSQL / MySQL and experience in writing complex queries.
• Strong understanding of SQL and NoSQL ORM.
• Solid grasp of data structures, multithreading, and operating system concepts.
• Experience with RESTful API development and implementation of API security.
• Knowledge of JSON/XML and their use in data exchange.

Good-to-Have Skills :

• Experience with Redis, MQTT, and message queues like RabbitMQ or Kafka.
• Understanding of microservice architecture and third-party API integrations (e.g., payment gateways, SMS/email APIs).
• Familiarity with MongoDB and other NoSQL databases.
• Exposure to data science libraries such as Pandas, NumPy, Scikit-learn.
• Knowledge in building and integrating statistical learning models.

We are looking for an experienced Java Developer with strong proficiency in Kafka and MongoDB to join our dynamic team. The ideal candidate will have a solid background in designing and developing high-performance, scalable, and reliable applications in a microservices architecture. You will be responsible for building real-time data processing systems, integrating various services, and ensuring smooth data flow across systems.

Key Responsibilities:

• Design, develop, and maintain scalable Java applications with a focus on performance and reliability.
• Build and maintain Kafka-based real-time data pipelines for handling high-volume, low-latency data.
• Work with MongoDB to design and optimize database schemas and queries for high throughput and availability.
• Collaborate with cross-functional teams to define, design, and implement new features and improvements.
• Troubleshoot and resolve issues related to system performance, scalability, and reliability.
• Ensure software quality through best practices, including testing, code reviews, and continuous integration.
• Implement and maintain security best practices in both code and data handling.
• Participate in agile development cycles, including sprint planning, daily standups, and retrospectives.

Required Skills & Qualifications:

• 7+ years of experience in Java development, with a strong understanding of core Java concepts (J2EE, multithreading, etc.).
• Hands-on experience with Apache Kafka, including setting up brokers, producers, consumers, and understanding Kafka Streams.
• Proficient in working with MongoDB for designing efficient data models, indexing, and optimizing queries.
• Experience with microservices architecture and RESTful APIs.
• Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
• Strong understanding of distributed systems, message-driven architectures, and event streaming.
• Familiarity with version control systems like Git.
• Excellent problem-solving skills, with the ability to debug and optimize code for high-performance systems.
• Experience with CI/CD pipelines and automated testing.

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:

1. At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
2. Excellent hands-on experience using MySQL or any other SQL Database.
3. Good knowledge of MongoDB or any other NoSQL Database.
4. Good knowledge of Redis, its data types, and their use cases.
5. Experience with graph-based databases like GraphQL and Neo4j.
6. Experience developing and deploying REST APIs.
7. Good knowledge of Unit Testing and available Test Frameworks.
8. Good understanding of advanced JS libraries and frameworks.
9. Experience with Web sockets, Service Workers, and Web Push Notifications.
10. Familiar with NodeJS profiling tools.
11. Proficient understanding of code versioning tools such as Git.
12. Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
13. Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
14. Experience building a large scale social or location-based app.

• Develop and maintain server-side logic using Node.js, JavaScript, and Python.
• Collaborate with front-end developers, designers, and product managers to create scalable and responsive web applications.
• Design and implement APIs and web services to facilitate seamless integration with other systems.
• Optimize applications for maximum speed, scalability, and reliability.
• Identify and troubleshoot performance bottlenecks and implement effective solutions.
• Ensure the security and data protection of the backend systems.
• Write efficient and reusable code, following industry best practices and coding standards.
• Conduct code reviews and provide constructive feedback to improve code quality.
• Stay up-to-date with the latest industry trends and technologies to drive continuous improvement.
• Participate in the entire software development lifecycle, from requirements gathering to deployment and maintenance.

Stalwart Themius is hiring a Backend Developer - Node.js to join our client's team in Mumbai. The selected candidate will work on cutting-edge technology and product. He/She will gain experience and will stand an opportunity to be hands-on, collaborative and fluent in the latest server-side, web capabilities and technologies. This will include all aspects of the creative process from conceptualizing to completion including design, development, presenting ideas, and working with the leadership team.

• Role: NodeJS Developer
• Experience: 1 - 4 years
• Location: Airoli, Navi Mumbai

Responsibilities:

• Use your knowledge about High Availability, Load Balancing, Scalability, and Distributed Computing in order to design database architectures and data structures that can grow with our business 
• Collaborate with Product, Engineering and Business teams to drive the architecture, design, development and deployment of our analytics and a reporting portal
• Identify and address architecture challenges to ensure a robust, safe, securely accessible, highly available and highly scalable product that meets or exceeds customer and end-user expectations
• Collaborate with leadership and technology teams on creative concepts, and then launch and shape the required design components for each presentation and/ or production
• Able to work closely / collaborate with multiple product development teams including software developers

Primary Skills:

• 1-4 years of experience with Node.JS
• 1-4 years of experience with NoSQL (MongoDB)
• Experience with Agile Software Development

Preferred Skills:

• Knowledge of Software Deployment
• Knowledge of IT Security for Web Services
• Expert in using Revision Control Systems (Git)
• Must have outstanding communication and collaboration skills

Benefits:

• Competitive salary and benefits package.
• Opportunity to work with a growing company.
• Collaborative and supportive work environment.
• Opportunities for professional development.

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Recording data and reporting it to proper parties, such as clients or leadership.
• Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members.
• Taking lead on projects, as needed.

Our backend(NodeJS+PHP) team is passionate about technology, and we love building scalable web solutions keeping performance in mind.We're looking for a full stack developer that has experience developing a variety of Web Apps using the PHP and NodeJS stack.

Role + Responsibilities:

• Work with the team to design, develop and support scalable applications        
• Developing API’s(REST), designing the database schema and implement same in web frameworks like Laravel and Express along with ORM(including migration script and seeds data)    
• Very good end-to-end debugging skills in PHP and NodejS stack.    
• Write, test, and release production-ready code.        
• Work with our DevOps team to ensure continuous deployments of our applications

Person Specification and Qualifications:

• Experience developing highly scalable services and APIs(in NodejS and PHP frameworks)    
• Knowledge of data modelling and database performance using NoSQL/SQL    
• Strong experience with PHP framework like Laravel(PHP) and JS frameworks like Express, and other Framework In nodeJS.    
• Good knowledge in code versioning(git or svn)    
• Good knowledge in html templating, javascript, html and css.    
• Good experience with code deployment on server like ubuntu, linux.    
• Knowledge of SDK integration(social media sdk like Facebook, google, etc and cloud services sdk like AWS and Azure)    
• Familiarity developing SaaS applications in AWS/Azure cloud services.        
• In-depth knowledge of designing and developing software in distributed architectures for multi-tier applications

About Role: 

1. We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users.  
2. 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.  
3. You will also be responsible for integrating the front-end elements built by your co-workers into the application. A basic understanding of front-end technologies is necessary as well. 

Key Responsibilities: 

1. Integration of user-facing elements developed by front-end developers with server-side logic 
2. Writing reusable, testable, and efficient code 
3. Design and implementation of low-latency, high-availability, and performant applications 
4. Implementation of security and data protection 
5. Integration of data storage solutions such as database, caching servers 

Qualification & Skills: 

1. Strong proficiency with JavaScript and Typescript 
2. Knowledge of Node.js and frameworks available for it such as Express, StrongLoop, etc 
3. Proficient in database systems (eg. MySql, MongoDB, DynamoDB) 
4. Understanding the nature of asynchronous programming and its quirks and workarounds 
5. Basic understanding of front-end technologies, such as HTML5, and CSS3 
6. Understanding accessibility and security compliance 
7. User authentication and authorization between multiple systems, servers, and environments 
8. Integration of multiple data sources and databases into one system 
9. Understanding fundamental design principles behind a scalable application 
10. Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform 
11. Creating database schemas that represent and support business processes 
12. Implementing automated testing platforms and unit tests 
13. Proficient understanding of code versioning tools, such as Git