Senior Python API Engineer | FastAPI & Microservices

JobCubby; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Zensar in Singapore is seeking an experienced Python developer to design, build, and maintain robust applications and services. You will develop RESTful APIs and microservices using FastAPI, Flask, or Django, write clean code, and collaborate with cross-functional teams to deliver scalable software.

Responsibilities include optimizing performance, ensuring security, integrating with databases and cloud services, and mentoring junior developers in an Agile/Scrum environment.

Qualifications

• 5–10 years of hands-on Python application development.
• Strong experience developing RESTful APIs using FastAPI, Flask, or Django.
• Experience with relational and NoSQL databases.
• Knowledge of microservices architecture and distributed systems.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with containerization using Docker and orchestration with Kubernetes.
• Experience implementing CI/CD pipelines and version control using Git.
• Strong debugging, troubleshooting, and performance optimization skills.
• Experience working in Agile/Scrum environments.

Responsibilities

• Design, develop, test, and maintain robust Python applications and services.
• Develop RESTful APIs and microservices using frameworks such as FastAPI, Flask, or Django.
• Write clean, reusable, and efficient code following best practices and coding standards.
• Collaborate with cross-functional teams to design and implement scalable software solutions.
• Optimize application performance, reliability, and security.
• Integrate applications with third-party APIs, databases, and cloud services.
• Troubleshoot, debug, and resolve production issues efficiently.
• Develop automated unit, integration, and performance tests.
• Participate in code reviews and mentor junior developers.
• Work in Agile/Scrum teams to deliver high-quality software within project timelines.
• Create and maintain technical documentation for applications and APIs.
• Support document processing, workflow automation, and data indexing solutions where applicable.

Skills

Python (Advanced)

OOP

Data Structures & Algorithms

Multithreading & Async

REST APIs

JSON

OpenAPI/Swagger

API Security (OAuth2, JWT)

Git

Tools

FastAPI (preferred)

Flask

Django

PostgreSQL

MySQL

MongoDB

Redis

AWS

Azure

Google Cloud Platform

Docker

Kubernetes

CI/CD pipelines

Git/GitHub/GitLab/Azure DevOps

RabbitMQ

Apache Kafka

Celery

PyTest

VS Code

PyCharm

Job description

Zensar in Singapore is seeking an experienced Python developer to design, build, and maintain robust applications and services. You will develop RESTful APIs and microservices using FastAPI, Flask, or Django, write clean code, and collaborate with cross-functional teams to deliver scalable software.

Responsibilities include optimizing performance, ensuring security, integrating with databases and cloud services, and mentoring junior developers in an Agile/Scrum environment.