About GrayQuestGrayQuest 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 skilledSenior Backend Developerto help drive our backend architecture, engineering practices and product scalability.Key Responsibilities Design, develop and maintain scalable backend services usingPython (Django, FastAPI)andGo . Architect and implement high-performanceRESTful APIsandmicroservicessupporting lending products, customer journeys and third-party integrations. Build and optimizeevent-driven systemsusingKafka(Pub/Sub, streaming, task orchestration). Work withAirflowto orchestrate workflows, schedule jobs and automate complex data pipelines. Design efficient database schemas and write optimized queries acrossPostgreSQL, 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 usingDockerand 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 bothproduct-basedandservice-basedorganizations, with exposure to building scalable platforms and handling diverse client or integration requirements Strong command overPython, Django/FastAPI . Proven experience designing and scalingRESTful APIsand distributed microservices. Hands-on experience withKafkaor similar message queues for event-driven architectures. Strong proficiency indatabase design, SQL performance tuningand working with relational + NoSQL systems. Solid understanding ofsystem design , distributed systems, caching and architectural patterns. Experience with Git, CI/CD pipelines (GitHub Actions/GitLab/Jenkins) and modern deployment practices. Demonstrated ability to useAI 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 withmonitoring and observabilitytools — Prometheus, Grafana, ELK Stack, Loki/Promtail, OpenTelemetry.Nice-to-Have / Add-Ons Knowledge ofpayment gateway integrations , secure financial APIs and fintech compliance workflows. Experience withtest 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 India’s digital lending backbone. Professional growth, upskilling opportunities and exposure to advanced engineering systems. Hybrid work model. Competitive compensation and benefits.
Job Title
Back End Developer