Walk-in || Senior Django Developer

Senior Python - Django Backend Developer

Location: Bangalore, India
Experience: 6+ Years
Employment Type: Full-Time
Work Mode: Work From Office

About the Role

We are looking for a Senior Python Backend Developer to join our growing engineering team and play a key role in building scalable, secure, and high-performance backend systems that power enterprise-grade eCommerce, marketplace, and SaaS applications.

The ideal candidate will have strong hands-on expertise in Python, Django, Django REST Framework, API development, databases, AWS, and backend architecture. You will work on complex integrations with platforms such as Amazon and Shopify, build automation solutions, optimize system performance, and contribute to technical and architectural decisions.

This is a high-impact role for someone who enjoys solving complex engineering problems, building scalable systems, and taking ownership of critical backend products and integrations.

Key Responsibilities

Backend Development & Architecture

• Design, develop, and maintain scalable backend applications using Python and Django.
• Build secure, high-performance RESTful APIs and backend services using Django REST Framework.
• Design scalable and maintainable software architectures for enterprise and eCommerce applications.
• Develop asynchronous and background processing solutions using Celery and Redis.
• Identify performance bottlenecks and implement solutions to improve application scalability, reliability, and response time.

API & Platform Integrations

• Develop and maintain integrations with Amazon SP-API, Shopify API, and other third-party/vendor APIs.
• Build robust API integrations with appropriate authentication, error handling, logging, retries, and monitoring.
• Work with internal teams to understand integration requirements and translate them into scalable technical solutions.

Automation

• Design and develop automation solutions using Selenium.
• Build reliable automation workflows for repetitive eCommerce and operational processes.
• Monitor and troubleshoot automation jobs to ensure stability and performance.

Database Management

• Design and optimize database schemas using PostgreSQL and MySQL.
• Write efficient SQL queries and perform database optimization.
• Analyze query performance and implement appropriate indexing and optimization strategies.
• Ensure data integrity, scalability, and reliability across backend systems.

Cloud & DevOps

• Deploy and manage applications on AWS, including EC2, S3, RDS, IAM, and CloudWatch.
• Work with Docker-based application environments and containerized deployments.
• Implement and maintain CI/CD pipelines using Jenkins or GitHub Actions.
• Collaborate on infrastructure automation and deployment processes using Terraform.
• Work with Kubernetes-based environments where required.
• Monitor production systems and proactively identify and resolve infrastructure and application issues.

Production Support & Engineering Excellence

• Troubleshoot and resolve complex production issues.
• Perform root-cause analysis and implement long-term fixes.
• Improve application reliability, security, scalability, and observability.
• Participate in code reviews and ensure adherence to engineering best practices.
• Write clean, maintainable, well-tested, and production-ready code.
• Mentor junior developers and contribute to the overall technical growth of the engineering team.

Cross-Functional Collaboration

• Collaborate closely with Product, Engineering, Business, and Operations teams.
• Translate business and product requirements into effective technical solutions.
• Participate in architecture discussions, technical planning, and Agile/Scrum ceremonies.
• Take ownership of deliverables and contribute to continuous improvement of engineering processes.

Required Skills & Expertise

Backend Technologies

• Strong hands-on experience with Python
• Expert-level experience with Django
• Strong experience with Django REST Framework (DRF)
• REST API development and third-party API integrations
• Celery and Redis
• Selenium
• Strong understanding of backend architecture and design patterns

Cloud & DevOps

• Hands-on experience with AWS, particularly:
  
• EC2
• S3
• RDS
• IAM
• CloudWatch
• Docker
• CI/CD pipelines
• Jenkins and/or GitHub Actions
• Git
• Kubernetes preferred
• Terraform preferred

Databases

• Strong experience with PostgreSQL and/or MySQL
• Database design and schema optimization
• SQL query optimization
• Indexing and performance tuning

Linux & Server Administration

• Ubuntu/Linux
• Shell scripting
• Nginx
• Gunicorn
• Cron jobs
• Basic server administration and troubleshooting

API Integrations

• Amazon SP-API
• Shopify API
• Third-party REST APIs
• Vendor and marketplace integrations
• API authentication, error handling, retries, and monitoring

Nice to Have

• Exposure to GCP
• Experience with Microservices Architecture
• Experience supporting backend services for Chrome Extensions
• Application performance tuning and monitoring
• Experience working with distributed systems
• eCommerce, marketplace, SaaS, or enterprise technology experience
• Agile/Scrum experience

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field is preferred.
• 6+ years of hands-on experience in Python backend development.
• Strong expertise in Django and REST API development.
• Proven experience building scalable SaaS, enterprise, eCommerce, or marketplace applications.
• Strong understanding of software architecture, database design, and application performance.
• Excellent problem-solving and debugging skills.
• Strong communication and collaboration skills.
• Ability to take ownership of projects and work effectively in a fast-paced environment.

What You'll Work On

At Assiduus, you will work on technology that supports global eCommerce and marketplace operations, including:

• Marketplace and eCommerce integrations
• Amazon and Shopify ecosystems
• Cross-border commerce technology
• Automation and workflow solutions
• Scalable SaaS platforms
• Data and API-driven applications
• Cloud infrastructure and distributed backend systems
• High-volume business-critical integrations

Why Join Assiduus?

• Build at scale: Work on technology powering global eCommerce and marketplace operations.
• High ownership: Take ownership of critical backend systems, integrations, and engineering initiatives.
• Solve complex problems: Work on challenging problems involving APIs, automation, scalability, and distributed systems.
• Modern technology: Gain exposure to Python, Django, AWS, Docker, CI/CD, cloud infrastructure, and scalable architecture.
• Global exposure: Work on products and solutions serving brands across multiple geographies.
• Innovation-driven culture: Be part of a team focused on technology, automation, data, and digital commerce.

About Assiduus

Assiduus is a global eCommerce accelerator helping brands scale across marketplaces, quick commerce, D2C, and social commerce through technology, data, and managed services.

Our proprietary technology platform enables brands to manage and optimize their digital commerce operations across multiple marketplaces and geographies.

With a strong focus on innovation, automation, and data-driven decision-making, Assiduus partners with some of the world's fastest-growing brands to unlock new growth opportunities and accelerate digital transformation in the eCommerce ecosystem.

As we continue to expand globally, we are looking for passionate technologists who enjoy solving complex problems, building scalable products, and creating technology that powers the future of commerce.

Ready to Build the Future of Commerce?

If you are a strong Python backend engineer who enjoys building scalable systems, solving complex technical challenges, and working on real-world eCommerce technology, we'd love to hear from you.