PISI integrated Services Limited

Backend Developer

PISI integrated Services Limited

Software & Data

1 week ago
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Job summary

We are seeking an experienced Backend Developer (Python/FastAPI) to maintain, optimize, and scale our backend systems. The role involves building APIs, managing databases, integrating third-party services, and supporting production systems.

Min Qualification: Degree Experience Level: Mid level Experience Length: 3 years

Job descriptions & requirements

Responsibilities:

  • Develop and maintain backend services using Python and FastAPI
  • Design, implement, and document RESTful APIs
  • Manage and optimize PostgreSQL databases
  • Implement background jobs and asynchronous processes
  • Integrate external APIs (payment gateways, telco/aggregator services, SMS/USSD platforms)
  • Monitor and debug production issues
  • Collaborate with frontend, QA, and product teams
  • Write clean, scalable, and maintainable code
  • Participate in code reviews and deployment processes


Requirements:

  • Minimum of 3 years of experience as a Backend Developer
  • Strong proficiency in Python
  • Hands-on experience with FastAPI
  • Strong knowledge of PostgreSQL
  • Experience building secure APIs (authentication, authorization)
  • Good understanding of backend architecture and system design
  • Experience using Git and collaborative development workflows
  • Ability to work independently and meet deadlines
  • Added Advantage (Nice to Have)
  • Experience with Redis, Celery, or background job processing
  • Docker and basic DevOps knowledge
  • Experience with subscription-based or high-traffic platforms
  • Experience integrating third-party APIs
  • Familiarity with logging, monitoring, and error tracking tools
Python FastAPI RESTful APIs PostgreSQL databases SMS/USSD Integration Redis Celery

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