Fullstack Developer

Job Title : Python Django Developer

Experience : 6+ Years

Location : Gurgaon (Work from Office)

Job Type : Full-time

Working Days: Monday to Friday (5 Days)

Timings: 9:30 AM – 6:30 PM

Job Summary :

We are seeking a highly skilled and experienced Python Django Developer to join our dynamic team in Gurgaon.

The ideal candidate will have a strong background in backend development, Django frameworks, and RESTful API integration.

You will be responsible for building and maintaining scalable web applications and collaborating with cross-functional teams.

Key Responsibilities :

• Develop, test, and maintain robust, scalable, high-performance web applications using Django and Python.
• Design and implement RESTful APIs and integrate third-party APIs and services.
• Write reusable, testable, and efficient code following best practices and coding standards.
• Work with frontend developers to integrate user-facing elements using server-side logic.
• Optimize applications for maximum speed and scalability.
• Perform code reviews, troubleshoot issues, and ensure application performance and security.
• Collaborate with product managers, designers, and other developers to deliver high-quality products.

Required Skills & Qualifications :

• 6+ Years of hands-on experience with Python and Django framework.
• Strong experience with RESTful APIs, Django ORM, and PostgreSQL/MySQL.
• Proficiency in version control systems like Git.
• Familiarity with frontend technologies such as HTML, CSS, JavaScript, and AJAX.
• Experience with Docker, Celery, Redis, and cloud platforms (AWS/Azure) is a plus.
• Solid understanding of software development principles and design patterns.
• Excellent problem-solving skills and attention to detail.
• Strong communication and collaboration abilities.

Good to Have :

• Experience with Django REST Framework (DRF).
• Knowledge of unit testing and CI/CD pipelines.
• Exposure to Agile development methodologies.
• Familiarity with containerization and deployment tools (Docker, Kubernetes).

This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on: 

* Designing complex algorithms 

* Building high-performance, memory-efficient systems 

* Owning deep backend logic that actually moves the needle 

You will work close to the core engine of the product, not the edges.

What You’ll Be Trusted With 

* Architect and build backend systems that must perform under load 

* Design and implement custom algorithms for real-world, non-trivial problems 

* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency 

* Build backend services where latency, throughput, and correctness matter 

* Own document & PDF processing pipelines end-to-end:     

-Composition     

-Rendering     

-Optimization     

- High-volume generation 

* Make hard technical decisions and stand by them

Non-Negotiable Skills 

* Exceptional Java expertise (Core Java, Spring Boot, Java 8+) 

* Strong command over:     

• Data structures & algorithms 
• Multithreading & concurrency models     
• JVM internals & memory management 

* Proven experience building custom algorithms (this will be evaluated) 

* Deep backend engineering experience with Spring / Spring Boot 

* Strong understanding of:     

• API design principles     
• Fault tolerance & resilience     
•  Performance tuning & profiling 

* Ability to reason about time complexity, space complexity, and trade-offs 

* Strong database fundamentals (query optimization, indexing, transactions) 

* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ) 

* Exposure to Kubernetes-based deployments or large-scale microservices 

Interview Focus (Be Prepared) 

* Algorithm design & problem solving 

* Deep Java fundamentals 

* System design discussions (backend-heavy) 

* Performance tuning scenarios 

* Real-world debugging and optimization challenges

Delivery Solutions is a Retail eCommerce OXM Platform that provides retailers with out-of-the-box solutions to power Same-Day Delivery, Curbside, In-Store Pickup, Shipping, and Post Purchase experiences. We are trusted with some of the biggest names in multiple verticals of retail like Sephora, AT&T, Footlocker, Michael's, Office Depot, GameStop, Total Wine, Sally Beauty, Abercrombie & Fitch Co. Belk, Loblaw, Vineyard Vines etc.

Our SAAS-based solution is highly flexible and interacts seamlessly with E-commerce properties, OMS, WMS, and POS systems for a highly scalable experience and a delighted customer base.

Delivery Solutions is a wholly-owned subsidiary of UPS | We are a certified Great Places To Work Company

Role: Senior Software Engineer - MEAN Stack

Reports to: Team Lead

Division/Department: Product

Work Location: India - Remote / Pune

We are seeking highly skilled and experienced Senior Software Engineers to join our SaaS company. As a Senior Software Engineer, you will play a pivotal role in the development and enhancement of our cutting-edge software products. You will work closely with cross-functional teams to design, develop, and deploy scalable software solutions using the MEAN stack (MongoDB, Express.js, Angular, Node.js) and related technologies.

Responsibilities:

• Collaborate with product managers, designers, and other stakeholders to define software requirements and translate them into technical specifications.
• Design and develop robust and scalable software solutions using the MEAN stack and other relevant technologies.
• Take ownership of feature development and deliver high-quality code on time.
• Participate in code reviews to ensure code quality and adherence to coding standards.
• Troubleshoot and debug software issues, and identify and implement effective solutions.
• Collaborate with DevOps teams to ensure smooth deployment and operation of software applications.
• Stay up-to-date with the latest industry trends, tools, and technologies and make recommendations for process improvements.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, or a related field. (Master's degree preferred)
• 4+ years of hands-on experience in MEAN stack development, including MongoDB, Express.js, Angular (version 2 or higher), and Node.js.
• Proven experience working in a product-based company, delivering software solutions to customers.
• Strong understanding of Agile methodologies and Agile development practices.
• Proficient in front-end technologies such as Angular, HTML, CSS, and responsive design principles.
• Solid understanding of back-end technologies including Node.js, RESTful APIs, and server-side frameworks.
• Experience with cloud platforms, specifically AWS, and familiarity with related services.
• Knowledge of JSON, Kibana, JIRA, and Jenkins is a plus.
• Strong problem-solving skills and the ability to work independently as well as in a team.
• Excellent communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams.

If you are a self-motivated individual with a passion for delivering high-quality software and want to work with a team that values creativity and innovation, then we encourage you to apply for this exciting opportunity. Join our team and be part of a dynamic environment where your expertise will make a significant impact on our software products. 

• Please submit your resume along with any relevant project portfolios or GitHub repositories, for consideration.

A niche, specialist position in an interdisciplinary team focused on end-to-end solutions. Nature of projects range from proof-of-concept innovative applications, parallel implementations per end user requests, scaling up and continuous monitoring for improvements. Majority of the projects will be focused on providing automation solutions via both custom solutions and adapting machine learning generic standards to specific use cases/domains.

Clientele includes major publishers from the US and Europe, pharmaceutical bigwigs and government funded projects.

As a Senior Fullstack Developer, you will be responsible for designing, building, and maintaining scalable and performant web applications using modern technologies. You will work with cutting-edge tools and cloud infrastructure (primarily Google Cloud) and implement robust back-end services with React JS with Typescript, Koa.js, MongoDB, and Redis, while ensuring reliable and efficient monitoring with OpenTelemetry and logging with Bunyan. Your expertise in CI/CD pipelines and modern testing frameworks will be key to maintaining a smooth and efficient software development lifecycle.

Key Responsibilities:

• Fullstack Development: Design, develop, and maintain web applications using JavaScript (Node.js for back-end and React.js with Typescript for front-end).
• Cloud Infrastructure: Leverage Google Cloud services (like Compute Engine, Cloud Storage, Pub/Sub, etc.) to build scalable and resilient cloud solutions.
• API Development: Implement RESTful APIs and microservices with Koa.js, ensuring high performance, security, and scalability.
• Database Management: Manage MongoDB databases for storing and retrieving application data, and use Redis for caching and session management.
• Logging and Monitoring: Utilize Bunyan for structured logging and OpenTelemetry for distributed tracing and monitoring to ensure system health and performance.
• CI/CD: Design, implement, and maintain efficient CI/CD pipelines for continuous integration and deployment, ensuring fast and reliable code delivery.
• Testing & Quality Assurance: Write unit and integration tests using Jest, Mocha, and React Testing Library to ensure code reliability and maintainability.
• Collaboration: Work closely with front-end and back-end engineers to deliver high-quality software solutions, following agile development practices.
• Optimization & Scaling: Identify performance bottlenecks, troubleshoot production issues, and scale the system as needed.
• Code Reviews & Mentorship: Conduct peer code reviews, share best practices, and mentor junior developers to improve team efficiency and code quality.

Must-Have Skills:

• Google Cloud (GCP): Hands-on experience with various Google Cloud services (Compute Engine, Cloud Storage, Pub/Sub, Firestore, etc.) for building scalable applications.
• React.js: Strong experience in building modern, responsive user interfaces with React.js and Typescript
• Koa.js: Strong experience in building web servers and APIs with Koa.js.
• MongoDB & Redis: Proficiency in working with MongoDB (NoSQL databases) and Redis for caching and session management.
• Bunyan: Experience using Bunyan for structured logging and tracking application events.
• OpenTelemetry Ecosystem: Hands-on experience with the OpenTelemetry ecosystem for monitoring and distributed tracing.
• CI/CD: Proficient in setting up CI/CD pipelines using tools like CircleCI, Jenkins, or GitLab CI.
• Testing Frameworks: Solid understanding and experience with Jest, Mocha, and React Testing Library for testing both back-end and front-end applications.
• JavaScript & Node.js: Strong proficiency in JavaScript (ES6+), and experience working with Node.js for back-end services.

Desired Skills & Experience:

• Experience with other cloud platforms (AWS, Azure).
• Familiarity with containerization and orchestration tools like Docker and Kubernetes.
• Experience working with TypeScript.
• Knowledge of other logging and monitoring tools.
• Familiarity with agile methodologies and project management tools (JIRA, Trello, etc.).

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5-10 years of hands-on experience as a Fullstack Developer.
• Strong problem-solving skills and ability to debug complex systems.
• Excellent communication skills and ability to work in a team-oriented, collaborative environment.

We have an opening for Sr Lead Software Engineer -Full / Mern Stack Developer.

Responsibilities :

• Responsible for writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Implementation of security and data protection
• Understanding of performance testing and optimization techniques

Requirements

• Should have the ability to translate Wireframes and PSD Designs into functional web apps using HTML5, React , Node.js, and Mongo.
• Binding of UI elements to JavaScript object models
• Creating RESTful services with Node.js
• Architect scalable web architectures
• Must have proven experience in front ( Rect.js)& back-end development (Node.js)
• Work in a cross-functional team to deliver a complete user experience
• Must know MongoDB, Express, Node.js, & React., Typescript, CSS, HTML, Bootstrap
• Create Unit and Integration tests to ensure the quality of code
• Be responsive to change requests and feature requests
• Write code that is cross-platform and cross-device compatible
• Must have the ability to wear many hats and learn new technologies quickly
• Candidate must have good Knowledge of Node Debugging
• Understanding & proficiency in REST APIs.
• Should know Git Repository and Jira.
• Integration of data storage solutions [RDBMS, NoSQL DB]

Qualifications

Having Expereince in MongoDB - Document DataBase,

Node.js —Express(.js) web framework -Backend

React(.js) — a client-side JavaScript framework along with Bootstrap , HTML5, CSS3 - Frontend

Education : B Tech , BCA or Equivalent

Relevant Experience : 3 to 9 years : Full Stack developer

Preferred Candidate : Immediate Joiner

Location: Kolkata only ( Onsite).

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.

The Candidate should have knowledge and experience with specified technologies:

• Great at building server-side code in NodeJs & ExpressJs
• Experience with NoSQL databases such as MongoDB
• Experience in building and consuming REST API
• Authentication and authorisation using JWT tokens
• Proficient understanding of code versioning tools, such as Git
• DevOps knowledge especially in AWS EC2 and S3
• Knowledge of headless Chrome, Puppeteer will be huge plus
• Experience in HTML, CSS
• Understanding of React will be a bonus