Fast API Python Developer

Position: 5 Fast API Python Developers

 On-site Requirement: 5 days on-site (Required)

Location: 540 West Madison Street, Chicago, IL 60661

Top Requirements:

1.      Fast API – framework

2.      Postgres Database - No to MySQL

3.      Kafka - messaging (MQ or other similar messaging tools acceptable here)

4.      5 years of exp min - more leaning towards 7-10 years

5.      Domain experience in either Cyber Security or Financial Industry

Interview process:

2 Rounds:

1 hour Webex interview - behavioral and technical

Coding? No, but there will be situational questions.

Final In person in Chicago with Romina (Main Lead)

Job Description:

Overview:

We are seeking a highly skilled Full Stack Python Developer with strong expertise in Fast API to join our agile development team. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend services and APIs, while contributing to full-stack solutions that meet complex business requirements. This role requires a deep understanding of Python, modern web frameworks, relational databases, and software engineering best practices.

Key Responsibilities:

• Collaborate with product owners and stakeholders to refine user stories and define technical requirements.
• Conduct technical spikes and proof-of-concepts to explore new ideas and mitigate implementation risks.
• Develop clean, efficient, and well-tested code to meet acceptance criteria and compliance standards.
• Design and implement scalable architecture components across data, application, and business layers.
• Troubleshoot and resolve technical challenges during development and integration phases.
• Build and maintain automated test suites including unit, integration, regression, and performance tests.
• Ensure architectural integrity and alignment with enterprise standards throughout the development lifecycle.

Required Skills & Qualifications:

• Proven experience in designing and deploying high-volume, distributed transactional applications.
• Expert-level proficiency in Python and the FastAPI framework (or similar asynchronous web frameworks).
• Strong hands-on experience with PostgreSQL, including SQL optimization and data modeling.
• Solid understanding of Git version control and collaborative development workflows.
• Familiarity with unit testing frameworks such as pytest or unittest.
• Experience working in Agile environments (Scrum/Kanban) and understanding of SDLC phases.
• Knowledge of data access patterns and relational database principles.
• Experience with component-based web application frameworks and RESTful API design.
• Excellent communication skills with the ability to engage both technical and non-technical stakeholders.

Interview questions:

1. What are mutable and immutable data types with examples
2. What is Bare Exception
3. What is Exception chaining
4. How do you handle external dependencies in Python
5. When does finally block gets executed
6. How do you handle resource leaks in Python
7. Explain workflow of ci/cd
8. Some questions related to your previous work
9. What is your approach in building an API which has to handle huge data
10. Some behavioral questions