Python Developer at B2B SaaS Product Company · Bengaluru (Bangalore) · 5 - 10 years · ₹5L - ₹12L / yr · Posted 6 Oct 2020

- Expert in Python. Comfortable with Web frameworks, such as Flask or Django
- Familiarity with Object Relational Mapping Libraries and ability to Integrate with Multiple Data Sources into One System
- Understanding of Limitations of Python and Multi Process Architecture. Understanding of Design Principles of Scalable Application
- Has familiarity with data frameworks in Python - Pandas or
- Good object-oriented design skills and knowledge of design
- Knowledge of key-value stores, caching, search, messaging queues
- Minimum 5 years of experience in the above

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About the Role
We are looking for a strong software engineer who actively uses AI to build better software faster. This is a backend-heavy engineering role where LLMs and AI systems are integrated into real production applications.
You will design, build, deploy, and maintain AI-enabled systems, while maintaining strong engineering discipline and code quality.
Key Responsibilities
- Architect and build scalable backend systems (Python / FastAPI preferred)
- Integrate LLM APIs, RAG pipelines, and AI workflows into production applications
- Deploy and maintain containerized applications on AWS/Azure
- Use AI coding assistants and agents to accelerate development, without compromising code quality
- Convert ambiguous requirements into production-ready systems
Must-Have Skills
- 7+ years of professional software engineering experience
- Strong Python backend experience
- Experience building REST APIs and production systems
- Solid understanding of system design and clean architecture
- Hands-on experience with Docker and Linux
- Experience deploying to AWS or Azure
- Experience integrating LLM APIs into applications
- Experience with embeddings / vector databases / RAG pipelines
- Strong Git and collaborative development workflows
- Ability to operate independently in ambiguous environments
Most importantly:
- Strong engineering fundamentals
- High ownership mindset
- Comfort using AI tools to move fast
- Discipline to maintain structure and quality
Good-to-Have
- Experience with real-time streaming or WebSockets
- Kubernetes deployment experience
- Experience in a fast-paced startup or consulting environment
- Familiarity with agent frameworks or voice/multimodal systems
Screening Requirement
Please include:
- A portfolio of systems you’ve built (especially AI-enabled systems), and
- A short note explaining how you use AI tools in your development workflow.
We are specifically looking for engineers who lean into AI agents and coding assistants, but still understand architecture, performance, and clean code.
Job Description – Backend Python Developer(Mid-Level)
📍 Location: Mumbai/Gurgaon | Full-time
Backend Python Developer
Role Overview
We are seeking a skilled Backend Python Developer to design, develop, and maintain backend services, APIs, and integrations that power our AI-driven automation solutions.
You will collaborate closely with senior engineers, AI/ML teams, and frontend developers to build scalable, high-performance systems. This role is ideal for professionals with solid backend experience who are eager to deepen their expertise in Python, cloud technologies, and AI-based applications.
Key Responsibilities
- Develop and maintain backend APIs, services, and system integrations using Python
- Collaborate on system design and architecture discussions with senior engineers
- Write clean, scalable, and well-documented code following best practices
- Ensure performance, scalability, and reliability in cloud environments
- Design and manage SQL/NoSQL databases for structured and unstructured data
- Support integration of AI/ML models into production workflows
- Participate in code reviews, unit testing, and debugging
- Contribute to CI/CD pipelines, containerization, and DevOps processes
Required Skills & Qualifications
- 3–5 years of experience in backend development
- Strong proficiency in Python
- Hands-on experience with frameworks such as FastAPI, Flask, or Django
- Experience building and consuming REST APIs (GraphQL is a plus)
- Strong database knowledge: PostgreSQL, MySQL, MongoDB, or Redis
- Familiarity with cloud platforms (AWS, GCP, or Azure)
- Hands-on experience with Docker and Kubernetes
- Strong understanding of OOP, data structures, algorithms, and design patterns
Preferred Skills
- Exposure to AI/ML workflows or a strong interest in learning
- Experience with message brokers such as Kafka, RabbitMQ, or Celery
- Knowledge of asynchronous programming (asyncio, Celery, etc.)
- Experience with unit testing frameworks (PyTest, unittest)
- Understanding of API security and authentication (OAuth2, JWT)
What We Offer
- Competitive compensation with growth opportunities
- Opportunity to work on AI-first automation products used globally
- Mentorship from experienced senior engineers
- Flexible work environment
- Continuous learning support in Python, Cloud, and AI/Automation technologies
Job Description:
Candidate must have 2 to 5-years of experience in various phase of development of a python-based application or API development.
Requirements:
Must Have: Strong expertise in PYTHON and its built-in data structures, developing API using flask or fastapi, data wrangling using standard python frameworks like pandas, NumPy etc., integration of various applications (third party or inhouse) with python.
Good to Have: Deployment using Nginx, GUnicorn, IIS, docker and Kubernetes etc. Good understanding of optimization solutions like differential evolution. Hands on experience with python packages like Scipy. Tkinter to make python-based applications.
Roles and Responsibilities:
- Understanding/gathering the requirements from stakeholder, formulating the problem, and leveraging AI/ML to solve the business problems.
- Integration of third party or in house application with python solution.
- Working on Deployment and optimization of various engineering problems using Numerical/Constraint optimization frameworks such as Differential Evolution and deploy a web-based API using Flask and Nginx/IIS.
- Unit testing of various python modules developed and testing of the API.
Excellent knowledge in Core Java (J2SE) and J2EE technologies.
Hands-on experience with RESTful services, API design are must.
Knowledge of microservices architecture is must.
Knowledge of design patterns is must.
Strong knowledge in Exception handling and logging mechanism is must.
Agile scrum participation experience. Work experience with several agile teams on an application built
with microservices and event-based architectures to be deployed on hybrid (on-prem/cloud)
environments.
Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like
JPA/Hibernate.
Experience in managing the Source Code Base through Version Control tool like SVN, GitHub,
Bitbucket, etc.
Experience in using and configuration of Continuous Integration tools Jenkins, Travis, GitLab, etc.
Experience in design and development of SaaS/PaaS based architecture and tenancy models.
Experience in SaaS/PaaS based application development used by a high volume of
subscribers/customers.
Awareness and understanding of data security and privacy.
Experience in performing Java Code Review using review tools like SonarQube, etc.
Good understanding of end-to-end software development lifecycle. Ability to read and understand
requirements and design documents.
Good Analytical skills and should be self-driven.
Good communication with inter-personal skills.
Open for learning new technologies and domain.
A good team player and ready to take up new challenges. Active communication and coordination with
Clients and Internal stake holder
Requirements: Skills and Qualifications
6-8 years of experience in developing Java/J2EE based Enterprise Web Applications
Languages: Java, J2EE, and Python
Databases: MySQL, Oracle, SQL Server, PostgreSQL, Redshift, MongoDB
DB Script: SQL and PL/SQL
Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
OS: Windows, Linux/Unix.
Cloud Services: AWS and Azure
Version Controls/ Devops tools: Git, Bitbucket and Jenkins.
Message brokers: RabbitMQ, and Kafka
Deployment Servers: Tomcat, Docker, and Kubernetes
Build Tools: Gradle/Maven
• Design, develop, test, deploy and maintain software
• Delivering high quality and well-structured code
• Manage individual project priorities and deadlines
• Participate in enhancing tools and processes
• Participate in production observance and technical incident management
• Ability to quickly learn and adapt to keep up in a fast-paced environment
Must haves:
• Strong data structure concepts
• Great problem-solving skills
• Working knowledge of at least one or more of Java / JavaScript / C / C++ / Golang / Python
• Exposure to RDBMS and/or NoSQL databases
• Working knowledge of GitHub, CI/CD, Devops
Good to have:
• Any cloud exposure like AWS, GCP or Azure
• Hands-on experience with Docker containers, Kubernetes etc
Qualifications
Bachelor’s or Master’s degree in computer science or related field with a minimum of 2 years of experience.
A zeal to learn and ability to enjoy the journey more than the destination is a must
- 2+ years of Hands-on experience in Python, Django, Flask, Bottle, Design Patterns, Web Services (SOAP/HTTP, REST APIs)
- 2+ years of hands-on experience with Postgress, MongoDB.
- Experience with cache-store / message broker like Redis / RabbitMQ / Kafka
- Experience with AWS
- Experience in front-end development using react.js is a plus.
- Proficient understanding of code versioning tools, such as Git / Mercurial /bitBucket.
- DevOps knowledge to deploy code in production and hands-on experience with docker / Kubernetes.
- Self-motivated and a good team player.
- Good communication and interpersonal skills.
- Bachelor’s Degree in Engineering from a reputed Institute
- 2+ years of experience in Python, Django, Mongo, Express, MySQL, etc
- Have built applications capable of serving high volume with low latency in production
- Following practices of agile development with continuous integration/deployment
- Experience in deploying applications in AWS cloud
- Knowledge in building applications for Fintech/payments domain is a bonus
- Bachelor’s or Master’s degree in CS or equivalent from a reputed institution
- Self-starter, hustler, and a desire to achieve greatness is a MUST
- Immediate joining preferred
- You will have the flexibility to design the application and systems from the ground up.
- Your primary responsibility is to implement business logic in the backend and create awesome restful APIs for seamless integration with our mobile front end.








