Back End Developer

About GrayQuest

GrayQuest is one of India’s fastest-growing fintech companies, focused on building secure and scalable digital lending infrastructure. We design innovative financial products and deliver end-to-end lending solutions used by thousands of institutions and customers. As we expand our technology ecosystem, we are looking for a skilled Senior Backend Developer to help drive our backend architecture, engineering practices and product scalability.

Key Responsibilities

• Design, develop and maintain scalable backend services using Python (Django, FastAPI) and Go .
• Architect and implement high-performance RESTful APIs and microservices supporting lending products, customer journeys and third-party integrations.
• Build and optimize event-driven systems using Kafka (Pub / Sub, streaming, task orchestration).
• Work with Airflow to orchestrate workflows, schedule jobs and automate complex data pipelines.
• Design efficient database schemas and write optimized queries across PostgreSQL, MySQL and MongoDB .
• Lead technical discussions, ensure code quality through reviews and mentor junior developers.
• Collaborate with product managers, frontend engineers, QA and cross-functional teams to deliver impactful features.
• Implement secure, compliant and production-ready systems aligned with fintech regulatory standards.
• Containerize services using Docker and contribute to microservices deployment workflows.
• Troubleshoot and resolve production issues, ensuring uptime, performance and reliability.
• Drive continuous improvements in backend architecture, observability, documentation, and engineering processes.
• Stay current with emerging technologies and bring fresh ideas to strengthen our tech stack.

Requirements

Nice-to-Have / Add-Ons

What We Offer