Python Back-End Developer - Banking experience

About This Role

The Backend Developer is responsible for designing, developing, and maintaining the backend infrastructure that powers the bank’s digital services. This role ensures scalable, secure, and high-performance backend systems, APIs, and databases that support web and mobile applications.

Working closely with frontend developers, product teams, and compliance units, the Backend Developer ensures that backend systems are robust, efficient, and compliant with regulatory standards, providing seamless integration with user-facing applications and digital banking products.

This role is central to delivering resilient backend services, optimizing performance, integrating with cloud platforms, and maintaining adherence to security, accessibility, and fintech regulations.

Key Responsibilities

1. Backend Development & API Design

· Design, build, and maintain high-quality backend services and APIs using Python and related frameworks.

· Develop RESTful APIs and microservices to support a range of banking and fintech applications.

· Define API contracts and collaborate with frontend teams for seamless data communication.

· Implement robust error handling, logging, and monitoring for backend processes.

2. Database Management

· Design, implement, and maintain efficient and scalable databases using PostgreSQL and MongoDB.

· Optimize database queries and indexes for performance and reliability.

· Ensure data integrity, consistency, and backup/recovery processes are in place.

3. Cloud Deployment & Infrastructure

· Deploy and manage backend applications on AWS and Azure, ensuring high availability and scalability.

· Configure cloud infrastructure for load balancing, auto-scaling, and security.

· Monitor backend performance and implement improvements to maintain optimal system efficiency.

4. Testing & Quality Assurance

· Write and maintain unit and integration tests for backend services using PyTest or similar tools.

· Participate in code reviews to ensure code quality and adherence to best practices.

· Troubleshoot production issues and provide long-term solutions.

5. Security & Compliance

· Apply secure coding practices to protect sensitive financial data.

· Implement authentication, authorization, and role-based access control.

· Collaborate with InfoSec teams to conduct vulnerability assessments and remediate risks (e.g., SQL injection, XSS, CSRF).

· Ensure compliance with regulatory frameworks, including GDPR and financial industry standards.

6. CI/CD & DevOps Collaboration

· Establish, configure, and maintain continuous integration and deployment pipelines for backend services.

· Collaborate with DevOps teams to streamline deployment workflows and infrastructure management.

· Monitor system health and participate in capacity planning and scaling strategies.

7. Documentation & Agile Collaboration

· Document backend architecture, APIs, database schemas, and operational processes.

· Collaborate with cross-functional teams using Agile/Scrum methodologies.

· Participate in sprint planning, stand-ups, retrospectives, and release coordination.