Backend Developer (Python/FastAPI) Zensor Solutions LLP Transform Data Into Decisions.

Zensor Solutions; Ahmedabad District; On-site; INR 800,000 - 1,200,000; Full time

Job summary

Zensor Solutions is hiring a Backend Developer to build robust APIs and scalable data pipelines for a new SaaS product. You will design and develop backend services using Python (FastAPI), ensuring application security and performance.

The ideal candidate has 4+ years of experience in backend development with strong knowledge of databases like PostgreSQL. This role offers a collaborative environment, influencing key technical decisions in a high-impact project.

Qualifications

• 4+ years of experience in backend development with Python.
• Strong knowledge of FastAPI, Django, or Flask.
• Solid experience with relational databases and ORMs.

Responsibilities

• Design and develop RESTful APIs and backend services.
• Build data ingestion and integration pipelines.
• Ensure application security, scalability, and performance.

Skills

Python

RESTful APIs

FastAPI

PostgreSQL

Docker

OAuth 2.0

Asynchronous programming

Tools

Celery

AWS

Job description

About the Role

We’re hiring aBackend Developerto help build the foundation of a new, data-intensive SaaS product.
You’ll be responsible for developingrobust APIs, scalable data pipelines, and integration layersthat power real-time insights and reporting.

This role is ideal for engineers who enjoy solving complex data problems, building clean and efficient systems, and working closely with product leadership in an early‑stage environment.

Key Responsibilities

• Design and developRESTful APIsand backend services usingPython (FastAPI).
• Builddata ingestion and integration pipelinesconnecting multiple third‑party APIs.
• Develop backend logic fordata processing, aggregation, and insights generation.
• Manage data storage, schema design, and optimization inPostgreSQLor similar databases.
• Implementasynchronous tasks and job queuesfor data collection and background processing.
• Collaborate with frontend developers and designers to define API contracts and data flows.
• Ensure application security, scalability, and performance best practices.
• Participate in architectural discussions, code reviews, and deployment planning.

Requirements

• 4+ years of experience in backend development withPython.
• Strong knowledge ofFastAPI, Django, or Flask, with experience building scalable APIs.
• Solid experience withrelational databases (PostgreSQL/MySQL)andORMs.
• Familiarity withOAuth 2.0, JWT, and secure API authentication.
• Experience withtask queues(Celery, RQ, or similar) and asynchronous programming.
• Understanding ofDocker,CI/CD, and cloud deployment (AWS/GCP preferred).
• Attention to performance optimization and clean, maintainable code.

Nice to Have

• Experience withdata analytics, reporting, or automation platforms.
• Exposure tomachine learning, NLP, or AI model integrations.
• Familiarity withGoogle APIsor data pipeline design.
• Experience inbuilding early‑stage SaaS architectures.

Why Join

• Work directly with the founding and product team on a high‑impact project from the ground up.
• Influence key technical decisions and architecture choices.
• Gain early ownership in a product that’s leveraging AI and automation to simplify complex workflows.
• Flexible and collaborative work environment with emphasis on innovation and learning.

Job Type: Full Time

Job Location: Ahmedabad or Remote