8 Flask Jobs in Kolkata | Flask Job openings in Kolkata
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Kolkata · 5 - 20 years · ₹13L - ₹25L / yr · Profitable · Posted 9 Jul 2026
Senior Python Developer to lead the development of scalable, high-performance backend systems and data-driven applications. You will work on building robust services, APIs, and data workflows that power real-time and batch applications.This role is ideal for a seasoned developer who thrives on solving complex problems, building reliable software, and working across data and engineering teams. Youll play a key role in designing and developing Python-based systems that interface with big data frameworks, cloud platforms, and analytics tools.Key Responsibilities
- Design and develop robust Python-based backend services and microservices.
- Build RESTful APIs and integrations with third-party systems and internal tools.
- Work with data workflows involving ingestion, transformation, and validation.
- Develop and maintain ETL/ELT pipelines using Python, SQL, and Airflow.
- Collaborate with DevOps teams to deploy, monitor, and scale applications in cloud environments (AWS, Azure, GCP).
- Optimize code for performance, scalability, and maintainability.
- Write unit and integration tests, participate in code reviews, and follow CI/CD best practices.
- Work with cloud storage, databases, and data lake technologies like S3, Parquet, and DuckDB.
- Collaborate with data scientists, analysts, and engineers to enable data access and modeling.
Required Skills & Qualifications
- 5+ years of experience in backend software development, primarily in Python.
- Strong understanding of OOP, modular design, and Python design patterns.
- Experience with web frameworks (e.g., Flask, FastAPI, Django).
- Hands-on experience with data processing tools like Pandas, SQLAlchemy, PyArrow.
- Proficiency with SQL and database technologies (PostgreSQL, DuckDB, etc.).
- Experience with Airflow for workflow orchestration.
- Knowledge of building scalable, distributed applications and microservices.
- Familiarity with cloud platforms (AWS, Azure, GCP) and containerization tools (Docker, Kubernetes).
- Solid understanding of version control (Git), testing frameworks (PyTest), and CI/CD pipelines.
- Excellent problem-solving, debugging, and communication skills.
Preferred Skills (Nice to Have)
- Experience with data processing frameworks like Apache Spark or Vaex.
- Familiarity with data storage formats and tools like Parquet, Iceberg.
- Exposure to data streaming platforms (Kafka, Kinesis, Flink).
- Experience integrating backend systems with AI/ML pipelines or BI platforms.
- Understanding of security standards and compliance (GDPR, HIPAA, SOC2).
- Background in metadata-driven or event-driven architectures.
Chennai, Hyderabad, Bengaluru (Bangalore), Pune, Mumbai, Kolkata, Delhi, Noida · 12 - 14 years · ₹11L - ₹27L / yr · Profitable · Posted 22 Jan 2025
Responsibilities
- Develop and maintain robust APIs to support various applications and services.
- Design and implement scalable solutions using AWS cloud services.
- Utilize Python frameworks such as Flask and Django to build efficient and high-performance applications.
- Collaborate with cross-functional teams to gather and analyze requirements for new features and enhancements.
- Ensure the security and integrity of applications by implementing best practices and security measures.
- Optimize application performance and troubleshoot issues to ensure smooth operation.
- Provide technical guidance and mentorship to junior team members.
- Conduct code reviews to ensure adherence to coding standards and best practices.
- Participate in agile development processes including sprint planning daily stand-ups and retrospectives.
- Develop and maintain documentation for code processes and procedures.
- Stay updated with the latest industry trends and technologies to continuously improve skills and knowledge.
- Contribute to the overall success of the company by delivering high-quality software solutions that meet business needs.
- Foster a collaborative and inclusive work environment that promotes innovation and continuous improvement.
Qualifications
- Possess strong expertise in developing and maintaining APIs.
- Demonstrate proficiency in AWS cloud services and their application in scalable solutions.
- Have extensive experience with Python frameworks such as Flask and Django.
- Exhibit strong analytical and problem-solving skills to address complex technical challenges.
- Show ability to collaborate effectively with cross-functional teams and stakeholders.
- Display excellent communication skills to convey technical concepts clearly.
- Have a background in the Consumer Lending domain is a plus.
- Demonstrate commitment to continuous learning and staying updated with industry trends.
- Possess a strong understanding of agile development methodologies.
- Show experience in mentoring and guiding junior team members.
- Exhibit attention to detail and a commitment to delivering high-quality software solutions.
- Demonstrate ability to work effectively in a hybrid work model.
- Show a proactive approach to identifying and addressing potential issues before they become problems.
Kolkata · 5 - 7 years · ₹7L - ₹10L / yr · Bootstrapped · Posted 8 Nov 2024
We are seeking an experienced and highly skilled Python Developer with some experience in Laravel to spearhead our offshore team, in managing a large-scale USA-based product platform.
As a Senior Python Developer, you will primarily focus on building efficient data-driven applications and robust web scraping solutions. You will leverage your experience with the Scrapy framework for large-scale data collection and processing. While Python is the primary language, some experience in Laravel will be essential to contribute to PHP-based projects, allowing for full-stack support when needed.
This role requires a proactive, resourceful developer who can think on their feet and efficiently tackle complex problems.
Key Responsibilities
- Scrapy Web Scraping: Develop, optimize, and maintain web scrapers using the Scrapy framework to gather, process, and store data from various online sources.
- Back-End Development: Design, develop, and implement scalable backend solutions in Python, focusing on reliability, efficiency, and high performance.
- Laravel Integration (As Needed): Contribute to existing Laravel projects, working with the PHP framework to support API endpoints, and ensure seamless integration with Python-based services.
- API Development & Integration: Build and integrate RESTful APIs to facilitate seamless communication between applications and external data sources.
- Data Processing & Storage: Create efficient data processing pipelines and manage SQL/NoSQL databases to store and organize large datasets collected through Scrapy.
- System Architecture: Work collaboratively with other developers to design scalable, resilient architectures that support data-heavy applications.
- Continuous Integration & Automation: Use Python to automate tasks, optimize CI/CD workflows, and enhance deployment processes for faster and more reliable releases.
- Mentorship & Code Review: Mentor junior developers, conduct code reviews, and contribute to maintaining high coding standards and best practices.
Qualifications
Experience
- 5+ years of professional experience in Python development, with a strong focus on web scraping using Scrapy.
- 1-2 years of experience with Laravel (intermediate understanding is acceptable for full-stack support).
- Demonstrated experience with data-driven projects, showcasing resourceful problem-solving abilities.
Technical Skills:
- Python: Advanced proficiency in Python, particularly with libraries for data manipulation and web scraping.
- Scrapy Framework: Extensive experience in Scrapy, including creating custom spiders, handling complex data extraction requirements, and working with proxies and data pipelines.
- Laravel (PHP): Familiarity with Laravel for backend development, including API creation, routing, and MVC structure.
- Database Management: Proficiency in SQL and NoSQL databases for efficient data storage and retrieval.
- API Development: Hands-on experience with RESTful APIs and integrating external services.
- Automation & DevOps: Familiarity with CI/CD tools, Docker, and version control systems (Git).
- Cloud Platforms: Experience with cloud platforms like AWS, Google Cloud, or Azure is a plus.
Why Join Us?
- High-Impact Role: Work on projects where your expertise in Scrapy and Python will directly influence our data capabilities and client success.
- Growth Opportunities: Access to learning resources, mentorship, and a supportive environment for continuous professional development.
- Innovative Culture: Join a team that values out-of-the-box thinking, resourcefulness, and efficient problem-solving.
Kolkata · 8 - 12 years · ₹10L - ₹15L / yr · Posted 21 Oct 2022
● The candidate will be responsible for a broad array of individual services, including
Architect and lead team for implementing a set of cloud-based services that will
power Zopper Assure and Zopper Finance.
● Providing technical expertise for every phase of the project lifecycle from concept
development to solution design, implementation, optimization and support.
● Prior experience in development of e-commerce systems or any other high scale
web/mobile backends is required.
● Expertise in any one programming knowledge preferably in Python.
● Prototype and present various alternative solutions for complex business problems to
Senior Management
● Prepares the technical design of the more complex technology components within the
module
● Assists the architect in articulating the pros and cons of using a certain technology
stack or component or design pattern versus another to the project team and drives
selection of technologies, designs to come up with the optimal architecture.
● Drives the performance tuning, re-design and refactoring for a module
● Contributes to designing and implementing the build, release process as well as system
configuration and deployment characteristics of the application
● Implements (hands-on) the module components based on industry best practices.
● Mentors the team (people working on the module and other project team members) on
● Technology concepts and best practices for design, implementation and other
processes
Prerequisites
● Candidate should hold 8+ Yrs of experience
● Should have 3+ years of experience in team handling
● Should be a Btech/MTech
Kolkata, Bengaluru (Bangalore) · 1 - 3 years · ₹6L - ₹10L / yr · Bootstrapped · Posted 3 Aug 2022
What we are looking
- You must have experience in Python, including development of microservices using flask/fastapi/sanic.
- You hold knowledge of at least one Python web frameworks
- You have experience in NoSQL databases such as MongoDB
- You are familiar with relational databases and unstructured data.
- You are familiar with some ORM (Object Relational Mapper) libraries.
- You have prior exposure to code versioning tools such as Git.
- You understand fundamental design principles behind a scalable application
Good to have
- Experience in cloud services such as AWS
- Knowledge of user authentication and authorization between multiple systems, servers, and environments
- Understanding of the threading concepts in Python and multi-process architecture
What you'll do
- Create database schemas that represent and support business processes
- Integrate multiple data sources and databases into one system.
- Develop and integrate RESTful APIs and services for business use cases
- Perform unit and integration tests on developed modules
Jaipur, Mumbai, Ahmedabad, Pune, Kolkata, Indore · 2 - 7 years · ₹2L - ₹5L / yr · Posted 29 Apr 2022
Must have exp in Django. [ Mandatory]
- The ability to problem-solve and critically think.
- High level of knowledge of Python and the Django framework.
- Familiarity with event driven programming as well as the MVC.
- Good understanding of SQL databases.
- Good understanding of REST APIs.
Indore, Jaipur, Ahmedabad, Kolkata · 2.5 - 5 years · ₹3L - ₹8L / yr · Posted 18 Apr 2022
Must have exp in Django. [ Mandatory]
- The ability to problem-solve and critically think.
- High level of knowledge of Python and the Django framework.
- Familiarity with event driven programming as well as the MVC.
- Good understanding of SQL databases.
- Good understanding of REST APIs.
Kolkata · 3 - 7 years · ₹6L - ₹10L / yr · Profitable · Posted 17 Apr 2019




