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Senior Python Developer - FastAPI / PostgreSQL

Senior Python Developer - FastAPI / PostgreSQL

AARYAVIN SERVICESDelhi, IN
3 days ago
Job type
  • Remote
Job description

Description :

This is a high-impact, and fully remote position requiring deep technical expertise in Python development and a comprehensive understanding of financial systems.

The successful candidate will be responsible for designing, developing, and maintaining scalable backend services and APIs that support critical financial :

  • Design and Development : Architect, develop, and deploy robust, high-performance, and scalable APIs and backend microservices primarily using Python and the FastAPI framework.
  • Financial Domain Expertise : Apply a solid understanding of financial data structures, trading workflows, banking processes, or risk management systems to build tailored and compliant solutions.
  • Performance Optimization : Conduct thorough code reviews, debugging, and advanced profiling to identify and eliminate performance bottlenecks in large-scale, high-throughput systems.
  • System Integration : Integrate backend services with various internal and external financial systems, databases (SQL / NoSQL), and message queues (e.g., Kafka, RabbitMQ).
  • Code Quality & Testing : Write clean, maintainable, and well-documented code.

Implement comprehensive unit, integration, and end-to-end tests to ensure maximum reliability and stability.

  • Collaboration : Work closely with product managers, financial analysts, and other engineering teams across different time zones (due to the specified shift) to define requirements and deliver technical solutions.
  • Deployment & Operations : Participate in the deployment pipeline, monitoring, and troubleshooting of production environments, ideally with experience in cloud platforms (e.g., AWS, GCP, Azure) and containerization (Docker, Kubernetes).
  • Required Technical Skills & Qualifications :

  • 7+ years of progressive, hands-on experience in backend software development.
  • Expert-level proficiency in Python and its ecosystem.
  • Mandatory Strong Experience with FastAPI for building RESTful APIs.
  • Solid understanding of financial systems, data flows, or banking / trading infrastructure is a must-have.
  • Proven track record in designing and building scalable, distributed backend services and microservice architectures.
  • Proficiency with database technologies (e.g., PostgreSQL, MySQL, MongoDB) and effective ORM tools (e.g., SQLAlchemy).
  • Strong practical experience with debugging tools, profiling, and performance tuning.
  • Familiarity with version control systems, especially Git.
  • Excellent problem-solving skills and attention to detail.
  • Desired (Bonus) Qualifications :

  • Experience with asynchronous programming (asyncio) in Python.
  • Knowledge of data serialization formats like Protobuf or Avro.
  • Familiarity with CI / CD pipelines (e.g., Jenkins, GitLab CI).
  • Experience in a regulated industry, particularly finance or fintech
  • (ref : hirist.tech)

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