Python Backend Engineer

About Us SCRY AI is an innovative AI-driven technology company focused on building intelligent, scalable, and high-performance solutions. We work with modern technologies across Software Engineering, AI/ML, and Data to solve real-world business problems and deliver impactful digital products.
Role Overview We are looking for a skilled Software Engineer - Python Backend with strong experience in building scalable APIs, backend services, and database-driven applications . The ideal candidate should be hands-on with Python, asynchronous programming, SQL, and API development, and comfortable working closely with UI/Frontend teams to deliver reliable end-to-end solutions.
Key Responsibilities
- Design, develop, and maintain scalable, high-performance backend applications using Python .
- Build robust REST APIs and backend services using frameworks such as FastAPI or Flask.
- Develop asynchronous and concurrent applications using asyncio, background workers, queues, and multiprocessing where required.
- Design and optimize database schemas, SQL queries, joins, indexes, stored procedures, and transactions .
- Work extensively with PostgreSQL/MySQL and other relational databases.
- Collaborate with UI/Frontend teams on API contracts, request/response structures, authentication, error handling, and integration .
- Build APIs capable of handling high traffic, concurrent requests, and real-time workloads .
- Optimize API and database performance by identifying slow queries, bottlenecks, inefficient calls, and resource utilization issues .
- Integrate backend services with third-party APIs, external systems, and enterprise applications .
- Implement authentication, authorization, validation, logging, exception handling, and API security .
- Write clean, reusable, maintainable, and well-documented code; develop unit/integration tests and participate in code reviews.
- Containerize applications using Docker and support deployment, troubleshooting, monitoring, scalability, and reliability across environments.

Key Qualifications
- 3+ years of software engineering experience with strong hands-on experience in Python .
- Strong experience with FastAPI/Flask, REST APIs, asynchronous programming, asyncio, concurrency, background jobs, and message queues .
- Excellent knowledge of SQL and relational databases , particularly PostgreSQL/MySQL, including complex queries, CTEs, joins, aggregations, indexes, and transactions.
- Experience with database schema design, data modeling, query optimization, connection pooling, and performance tuning .
- Understanding of API scalability, caching, high-concurrency systems, and backend performance optimization .
- Experience integrating backend APIs with Frontend/UI applications and third-party systems .
- Good understanding of Git, Docker, Linux, testing, debugging, and CI/CD .
- Experience with Redis, Kafka/RabbitMQ , or similar caching and messaging technologies is a plus.
- Experience with AWS or other cloud platforms is preferred.
- Strong problem-solving, communication, collaboration, and ownership skills , with the ability to work independently in a fast-paced environment.

Good to Have
- Experience with Kubernetes, microservices, cloud-native architectures, and production observability .
- Exposure to event-driven architectures, distributed systems, API gateways, and performance/load testing .
- Experience working with AI/ML or GenAI backend integrations and deploying Python-based AI services is a plus.