Description :

GrayQuest is one of Indias 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 :

- 3 - 8 years of backend development experience working in both product-based and service-based organizations, with exposure to building scalable platforms and handling diverse client or integration requirements

- Strong command over Python, Django/FastAPI.

- Proven experience designing and scaling RESTful APIs and distributed microservices.

- Hands-on experience with Kafka or similar message queues for event-driven architectures.

- Strong proficiency in database design, SQL performance tuning and working with relational + NoSQL systems.

- Solid understanding of system design, distributed systems, caching and architectural patterns.

- Experience with Git, CI/CD pipelines (GitHub Actions/GitLab/Jenkins) and modern deployment practices.

- Demonstrated ability to use AI tools (ChatGPT, GitHub Copilot, Claude Code etc.) to enhance productivity.

- Strong debugging skills and experience handling production incidents.

- Excellent communication skills and ability to work collaboratively with diverse teams.

- Strong problem-solving mindset with ownership and a drive for technical excellence.

- Familiarity with monitoring and observability tools - Prometheus, Grafana, ELK Stack, Loki/Promtail, OpenTelemetry.

Nice-to-Have / Add-Ons :

- Knowledge of payment gateway integrations, secure financial APIs and fintech compliance workflows.

- Experience with test automation frameworks (PyTest, UnitTest, Behave) and writing integration/E2E tests.

- Understanding of API gateway patterns, rate limiting, throttling and authentication standards (OAuth2, JWT).

- Experience building developer tooling, internal frameworks or reusable libraries.

What We Offer :

- Opportunity to work on high-impact fintech problems using modern, scalable technologies.

- A collaborative culture that encourages ownership, innovation and continuous learning

- Direct contribution to building Indias digital lending backbone.

- Professional growth, upskilling opportunities and exposure to advanced engineering systems.

- Hybrid work model.

- Competitive compensation and benefits