Python Software Engineer
Current- Enhanced backend performance for systems with over 50 million records, achieving a65% increase in processing speed and enabling the company to exceed £15 million intransaction volume.- Led the development of foundational FinTech applications, using mainly FastAPI andFlask frameworks, including an e-wallet, fraud detection system, multiple paymentgateways, and a cryptocurrency exchange, building each solution from the ground up.- Built PCI-compliant applications for merchants to handle transactions with financialinstitutions, supporting 3DS, 3DSv2, Direct Payment, and white-label branding solutions.- Developed e-wallet application from scratch- Developed an in-house fraud detection system with customisable rule engines, enablingreal-time monitoring and reducing financial risk by preventing potential losses fromfraudulent activities.- Utilised Redis for efficient session management and handling payment timeouts, reducingdatabase costs by 7%. Also, I have boosted data retrieval speeds by 50% by integratingadvanced caching mechanisms into the system.- Integrated AWS components (SQS, S3, KMS, CloudWatch) to enhance system reliabilityand security.- Gained experience in project planning and cross-functional collaboration, deliveringrobust solutions on time and at scale.