Backend Developer (FastAPI)

System Heuristics; Lahore; On-site; PKR 1,800,000 - 3,000,000; Full time

Benefits offered by this job

Lunch allowance

Bonuses (performance-based)

Certifications support

Job summary

System Heuristics is seeking a backend engineer to design, implement, and maintain high-performance server-side logic and API services using FastAPI. You will collaborate with frontend and DevOps teams to deliver robust microservices in a cloud-native environment.

Join a fast-growing IT solutions provider that values collaboration, innovation, and professional growth, with onsite perks and opportunities for certifications and development.

Qualifications

• BSCS or equivalent in Computer Science.
• 2+ years of professional Python backend development.
• Proven experience with FastAPI or similar ASGI frameworks.
• Strong relational and NoSQL DB knowledge (PostgreSQL/MySQL, MongoDB/Redis).
• Solid REST principles and async programming understanding.
• Hands-on Docker, Kubernetes, and CI/CD workflows.
• Familiarity with AWS/Azure/GCP services.
• Exposure to event-driven architecture and message brokers (RabbitMQ, Kafka).
• Comfort with Agile/Scrum processes.

Responsibilities

• Develop and maintain RESTful and WebSocket APIs with FastAPI.
• Architect and build scalable microservices.
• Integrate third-party services and databases.
• Write clean, testable Python code.
• Optimize performance, troubleshoot and debug backend systems.
• Collaborate with DevOps on CI/CD pipelines, containerization, and monitoring.
• Work cross-functionally with frontend and product teams.

Skills

Python backend

FastAPI

REST API design

Async programming

Docker

Kubernetes

CI/CD

PostgreSQL/MySQL

MongoDB/Redis

AWS/Azure/GCP

RabbitMQ/Kafka

Agile/Scrum

Education

BSCS

Tools

Docker

Kubernetes

CI/CD

PostgreSQL

MySQL

MongoDB

Redis

AWS

Azure

GCP

RabbitMQ

Kafka

Job description

We're looking for a backend engineer who excels at building high-performance APIs and scalable microservices with FastAPI.

About us

System Heuristics is a fast-growing IT solutions provider focused on developing innovative digital experiences. Our mission is to bridge the gap between technology and real-world challenges. We believe in collaboration, creativity, and continuous improvement and strive to foster a work environment that encourages innovation and supports professional growth.

About the role

The Backend Developer will design, implement and maintain server-side logic, databases, and API services using FastAPI. You'll collaborate closely with frontend and DevOps teams to deliver robust, low-latency microservices in a cloud-native environment.

Key responsibilities

• Develop and maintain RESTful and WebSocket APIs with FastAPI
• Architect and build scalable microservices
• Integrate third-party services and databases
• Write clean, testable, and reusable Python code
• Optimize performance, troubleshoot and debug backend systems
• Collaborate with DevOps on CI/CD pipelines, containerization, and monitoring
• Work cross-functionally with frontend and product teams

Qualifications required

• Bachelor's degree in Computer Science (BSCS)
• 2+ years of professional Python backend development
• Proven experience with FastAPI or similar ASGI frameworks
• Strong knowledge of relational (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis) databases
• Solid understanding of REST principles and async programming
• Hands-on experience with Docker, Kubernetes, and CI/CD workflows
• Familiarity with AWS, Azure, or GCP services
• Exposure to event-driven architecture and message brokers (e.g., RabbitMQ, Kafka)
• Comfort with Agile/Scrum processes

Personal attributes

A proactive problem-solver who writes maintainable code, thrives in collaborative teams, and is eager to mentor peers.

What we offer

• Onsite perks and lunch allowance
• Performance-based annual bonuses
• Support for certifications and professional development

System Heuristics is an Equal Opportunity Employer. We value diversity and are committed to creating an inclusive environment for all employees.