Job Title: Senior Software Engineer – Backend (Python | Flask | MySQL | AWS)

Experience: 4-6 yrs

Job Type: Full-Time (On Site)

Location: Recent Delhi

CTC: ₹10-12 LPA

Key areas of responsibility include:

● Design, develop, and maintain scalable backend services and REST APIs.

● Build end-to-end features across order management, warehouse operations, inventory, billing, and fulfillment workflows.

● Design and optimize database schemas, SQL queries, and data migration strategies.

● Integrate with third-party platforms including shipping carriers, accounting software, and marketplace APIs.

● Develop and maintain background jobs, scheduled tasks, and automation processes.

●Investigate and resolve complex production issues across applications, databases, and infrastructure.

●Ensure application reliability, performance, scalability, and data integrity.

● Participate in code reviews and contribute to engineering best practices.

● Collaborate with cross-functional teams while independently driving technical solutions.

What You'll Work

On Backend Development

● Develop and maintain enterprise-grade backend applications using Python and Flask.

● Build scalable REST APIs and backend services.

● Design and implement complete features from database to deployment.

● Work across modules including order management, warehouse management, inventory, billing, and customer portals.

Database & Data Engineering

● Design and optimize MySQL databases.

● Write efficient SQL queries, stored procedures, and complex joins.

● Perform query optimization, indexing, transaction management,



and database performance tuning.

● Execute database migrations while ensuring data integrity.

API Integrations

● Integrate with third-party platforms including logistics providers, shipping carriers, accounting systems, and marketplace APIs.

● Develop secure REST API integrations using authentication mechanisms such as OAuth and API Keys.

● Troubleshoot API failures, webhook issues, and synchronization problems.

Background Jobs & Automation

● Develop and maintain scheduled jobs, asynchronous workflows, and automation processes.

● Build automation for inventory synchronization, billing reconciliation, reporting, and order processing.

● Ensure reliability and performance of recurring background tasks.

Production Support & System Reliability

● Investigate production issues across applications, APIs, databases, and infrastructure.

● Perform root cause analysis and implement permanent solutions.

● Monitor application performance and maintain production stability.

● Support deployment activities and release management processes.

Cloud & DevOps

● Work with Docker-based development environments.

● Support CI/CD pipelines using GitHub Actions.





● Deploy and maintain applications on AWS infrastructure.

● Assist in infrastructure optimization and production deployments.

Tech Stack

● Python

● Flask

● MySQL 8

● SQLAlchemy

● PyMySQL / MySQL Connector

● Docker

● Git & GitHub Actions

● AWS (EC2, ECS, ECR, S3)

● Redis

● Pandas, NumPy

● Nginx

● REST APIs

● GitHub

Must-Have Skills

● 4–6 years of hands-on experience in Backend Development using Python.

● Strong expertise in Flask framework.

● Advanced knowledge of MySQL, SQL optimization, indexing, transactions, and database performance tuning.

● Experience designing and developing RESTful APIs.

● Strong understanding of SQLAlchemy an d MySQL database drivers.

● Experience with Docker and containerized application development.

● Proficiency with Git, including branching strategies, rebasing, merge conflict resolution, and pull request workflows.

● Experience working with CI/CD pipelines using GitHub Actions.

● Strong debugging, analytical, and problem-solving skills.

● Experience working on large-scale production applications.

● Excellent written and verbal communication skills.

Application Question(s)

- Are you qualified with Diploma/Degree in B.Tech or relevant field?
- are you most comfortable with location Punjabi bagh, Delhi?
- what is your current annual salary / ctc?
- what is your expected annual salary / ctc?
- How many years of Proven experience in Backend (Python | Flask | MySQL | AWS) ?
- what is your notice period? (in days)

Work Location: In person

📌 Senior Software Engineer (Delhi)
🏢 Orbitouch Outsourcing Private
📍 Delhi