Join the QTLOADS TECH & TRANSIT PRIVATE LIMITED team as a Full Time Senior Backend Engineer on Erekrut, specializing in Senior Backend Engineer in the IT Services and consulting industry. We are seeking talented individuals with a passion for IT Services and educational qualifications ranging from 4-6 Years. Apply now on Erekrut to take the next step in your career with a leading global company.
We are looking for an experienced and highly skilled Senior Backend Engineer to design, develop, and maintain a scalable Python-based Core API platform.
The ideal candidate should have strong expertise in FastAPI, async SQLAlchemy 2.0, PostgreSQL, and backend architecture patterns with a focus on reliability, correctness, security, and maintainability.
You will work on a modular monolith architecture supporting multi-tenant systems, state-driven business workflows, and high-performance backend services.
Key Responsibilities
Backend Development & Architecture
- Develop and maintain backend services using:
- FastAPI
- Async SQLAlchemy 2.0
- Pydantic v2
- Alembic
- Build scalable and maintainable modular backend systems with robust architectural discipline.
- Write clean, reusable, and strictly typed Python code following best practices.
API & Business Logic Development
- Design and implement secure, high-performance REST APIs.
- Implement
- RBAC (Role-Based Access Control)
- Idempotent APIs
- RFC 7807 compliant error handling
- Audit logging and event-driven workflows
- Ensure accurate implementation of complex business rules and KPI/reporting logic.
Database Engineering
- Design and optimize PostgreSQL schemas and queries.
- Work with
- B-tree indexes
- GIN indexes
- Partial and expression indexes
- Query optimization and execution plans
- Handle transaction management, advisory locks, and data consistency.
State Machine & Workflow Management
- Build and maintain robust state machine workflows for core business entities.