


Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a senior software engineer, you will work on our python based ORM and applications that scales to handle millions of transactions every hour. This is mission critical software and your primary focus will be building robust and scalable solutions that are easy to maintain.
In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product are important.
What You’ll Do:
- Own definition and implementation of API interfaces (REST and GraphQL). We take pride in our 100% open API with over 600 endpoints.
- Implement simple solutions to complex business logic that enables our merchants to manage financials, orders and shipments across millions of transactions.
- Build reusable components and packages for future use.
- Translate specs and user stories into reviewable, test covered patches.
- Peer review code and refactor existing code.
- Integrate with our eCommerce partners (Shopify, BigCommerce, Amazon), shipping partners (UPS, USPS, FedEx, DHL) and EDI.
- Manage Kubernetes and Docker based global deployment of our infrastructure.
Requirements We’re Looking for Someone With:
- Experience working with ORMs like SQLAlchemy or Django (2-3 years)
- Experience with SQL and databases (Postgres preferred)
- Experience in developing large server side applications and microservices
- Ability to create high quality code
- Experience with python testing tools (pytest) and test automation
- Familiarity with code versioning tools like GIT
- Strong sense of ownership and leadership quality
- Experienced in the tools of our web stack- Python, Celery, Postgres, Redis, RabbitMQ
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Experience with ReactJS, Google Cloud, Heroku
- Cloud deployment and scaling experience

About Fulfil.IO
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Role: Python Developer (Immediate Joiner)
Location: Gurugram, India (Onsite)
Experience: 4+ years
Company: Mizzle Cloud Pvt Ltd
Working Days: 6 Days( 5 days- WFO, Sat- WFH)
Job Summary
We are seeking a skilled Python Django Developer with expertise in building robust, scalable, and efficient web applications. Must have 3+ years of core work experience. The ideal candidate will have hands-on experience with RabbitMQ, Redis, Celery, and PostgreSQL to ensure seamless background task management, caching, and database performance.
Key Responsibilities
- Develop, maintain, and enhance Django-based web applications and APIs.
- Design and implement message broker solutions using RabbitMQ to manage asynchronous communication.
- Integrate Redis for caching and session storage to optimize performance.
- Implement and manage task queues using Celery for background processes.
- Work with PostgreSQL for database design, optimization, and query tuning.
- Collaborate with front-end developers, DevOps engineers, and stakeholders to deliver high-quality software solutions.
- Write clean, modular, and well-documented code following best practices and standards.
- Debug, troubleshoot, and resolve issues across the application stack.
- Participate in code reviews, system design discussions, and team meetings.
- Ensure scalability, reliability, and security of applications.
Technical Skills:
- Must have minimum 4+ years of relevant work experience.
- Strong proficiency in Python and Django framework.
- Experience with message brokers, particularly RabbitMQ.
- Familiarity with Redis for caching and session management.
- Hands-on experience with Celery for distributed task queues.
- Proficiency in PostgreSQL, including database design and optimization.
- Knowledge of RESTful API design and development.
- Understanding of Docker and containerized applications.
Preferred Skills:
- Experience with CI/CD pipelines.
- Familiarity with cloud platforms (AWS, GCP).
- Knowledge of Django ORM and its optimizations.
- Basic understanding of front-end technologies (HTML, CSS, JavaScript).
Soft Skills:
- Strong problem-solving skills and attention to detail.
- Excellent communication and teamwork abilities.
- Ability to work in an agile environment and adapt to changing requirements.
Educational Requirements
- Bachelor’s degree in Computer Science, Software Engineering, or a related field.

Gyaan empowers Go-To-Market teams to ascend to new heights in their sales performance, unlocking boundless opportunities for growth. We're passionate about helping sales teams excel beyond expectations. Our pride lies in assembling an unparalleled team and crafting a crucial solution that becomes an indispensable tool for our users. With Gyaan, sales excellence becomes an attainable reality.
Gyaan is seeking an experienced backend developer with expertise in Python, Django, AWS, and Redis to join our dynamic team! As a backend developer, you will be responsible for building responsive and scalable applications using Python, Django, and associated technologies.
Required Qualifications:
- 4+ years of hands-on experience programming in Python, Django
- At least 1 year of experience in a lead engineering role, working with diverse and distributed teams.
- Good understanding of CI/CD tools (Github Action, Gitlab CI) in a SaaS environment.
- Experience in building and running modern full-stack cloud applications using public cloud technologies such as AWS/
- Proficiency with at least one relational database system like MySQL, Oracle, or PostgreSQL.
- Experience with unit and integration testing.
- Effective communication skills, both written and verbal, to convey complex problems across different levels of the organization and to customers.
- Familiarity with Agile methodologies, software design lifecycle, and design patterns.
- Detail-oriented mindset to identify and rectify errors in code or product development workflow.
- Willingness to learn new technologies and concepts quickly, as the "cloud-native" field evolves rapidly.
Must-Have Skills:
- Python
- Django Framework
- AWS
- Redis
- Database Management
Qualifications:
- Bachelor’s degree in Computer Science or equivalent experience.



- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Ability to understand business requirements and translate them into technical requirements
- You will ensure that these components and the overall application are robust and easy to maintain.
- Have a good understanding of design and user experience principles.
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment
- Ensuring technologies are used efficiently, profitably, and securely. Evaluating and implementing new systems and infrastructure.
- Excellent troubleshooting, analytical and problem-solving abilities with a tenacious commitment to finding the root cause of issues.
Qualifications :
- B. Tech/ B.E. /M. Tech/ BCA / MCA or a related technical discipline from reputed universities
Skills Required :
- Minimum 1+ years of experience in REST API development using python.
- Must have experience with anyone popular python frameworks like Django, Flask, and FastAPI Framework.
- Experience in designing and developing Restful Web services and Remote procedure calls.
- Able to integrate multiple data sources and databases into one system
- Knowledge of load testing and optimizing code for performance, security, and scalability
- Experience with Unit testing frameworks in Python
- Knowledge of modern authorization & authentication mechanisms.
- Able to create database schemes that represent and support business processes
- Knowledge of Version Control System & basics of CI/CD
- Write and maintain technical documentation
- Solid foundation in OOPS, Data structures, and Algorithms
- Knowledge of SDLC phases of project development.
- Experience in one or more No SQL Databases such as MongoDB, and Cassandra.
- Experience with event-based databases and programming
- Good experience in synchronous programming and thread-based programming.
- Experience with schedulers.
- Good to have knowledge of Linux shell commands.
- Good to have experience in Kubernetes & Docker
- Knowledge of any Cloud Service like GCP or AWS would be an added advantage
- Cares deeply about writing Quality, Testable & Modular code
- Good to have an understanding of NLP.


Capable of working under minimal direction and exercising considerable latitude, they will provide technical expertise in developing solutions to complex software engineering problems, which require
frequent use of ingenuity and creativity.
Experienced in designing application framework solutions, performing architectural analysis, and identifying issues and provide solutions for the business problems.
Sound functional knowledge of application architecture service architecture, code modularity, data synchronisation, customisable workflow management, partner application integration and API
developer frameworks.
Responsibilities:
Lead the design and development of new architecture and major functional upgrades for the most advanced capabilities
Provide technical guidance and mentorship to engineers, designers, and developers.
Engage cross-organizational teams such as Product Management, Integrations, Services, Support, and Operations, to ensure the success of overall software development, implementation, and
deployment.
Requirements:
Ideal candidate should have
7+ years of system implementation experience
Experience with any of the following languages like Java / Nodejs / ROR / Python
Expertise in micro service / Data modelling / AWS / Messaging
Expertise in building scalable & reliable systems
Good Experience in working with technologies like AWS, Redis,
Experience in messaging systems like SQS/RabbitMQ
Good knowledge of caching, Databases, distributed systems.
Strong problem solving and analytical skills
Good experience with Devops
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riya attherateof cielhr dot com
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