Posted on: 15/01/2026
We are looking for a Senior Backend Python Engineer to design, build, and scale robust backend systems and automation-first solutions.
The ideal candidate will have strong hands-on experience with FastAPI, PostgreSQL, and asynchronous Python, along with deep knowledge of event-driven architectures and worker-based processing systems.
This role requires a high level of ownership and technical leadership, including system design, architectural decision-making, and managing backend services in cloud environments.
Key Responsibilities :
- Design, develop, and maintain scalable backend services using Python and FastAPI.
- Build and optimize RESTful APIs and microservices-based architectures.
- Design and implement asynchronous and event-driven systems using Celery, Redis, and worker queues.
- Develop and optimize database schemas and queries using PostgreSQL.
- Lead backend architecture and system design, ensuring high availability, scalability, and maintainability.
- Build automation-first, low-maintenance solutions using platforms such as Make.com, 0Codekit, and similar tools.
- Take full ownership of backend projects from design to deployment.
- Collaborate with frontend, DevOps, and product teams to deliver end-to-end solutions.
- Ensure best practices in security, performance, logging, and monitoring.
- Manage and support AWS infrastructure, deployments, and credentials (where applicable).
Must-Have Qualifications :
- Strong hands-on experience with Python backend development.
- Proven expertise in FastAPI.
- Solid experience with PostgreSQL.
- Experience building asynchronous processing workflows in Python.
- Hands-on knowledge of Celery, Redis, worker queues, and event-driven architectures.
- Strong understanding of microservices architecture and REST APIs.
- Demonstrated ability to lead projects, take ownership, and work independently.
- Strong system design skills, particularly for automation-first and scalable solutions.
- Experience designing low-maintenance automation systems using tools like Make.com, 0Codekit, or similar platforms.
Good-to-Have Qualifications :
- Advanced experience with AWS, including :
1. ECS.
2. Lambda.
- Microservices-based deployments.
- Familiarity with containerization and CI/CD pipelines
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Posted by
Mrinmoyee Roy Chowdhury
Talent Acquisition Lead at CAPITALNUMBERS INFOTECH LIMITED
Last Active: 28 Jan 2026
Posted in
Backend Development
Functional Area
Backend Development
Job Code
1601509