Senior Backend Developer
Plentina VN
Aug 2022 - May 2024Paranaque, PhilippinesEmployee
About the company
Plentina is a fintech startup providing Buy Now, Pay Later (BNPL) credit solutions in emerging markets, primarily in the Philippines. The company helps consumers build credit history and make cashless payments through a mobile app and partnerships with merchants.
Key achievements & responsibilities
Led backend development for core credit and loan services, including onboarding, credit assessment, repayment schedules, and transaction processing
Designed scalable backend systems to handle higher user and transaction volume
Built and maintained high-throughput REST APIs for the mobile app, internal tools, and partner integrations
Integrated risk scoring, eligibility checks, and machine learning outputs into backend decision flows
Designed secure data flows for sensitive financial information, including encryption, access control, and audit logging
Tuned MySQL/PostgreSQL queries and indexes to improve performance for high-volume BNPL transactions
Managed integrations with payment gateways, e-wallets, and merchant systems, including failure handling and reconciliation
Owned incident response, monitoring, and root-cause analysis for production backend issues
Worked with product, data, and mobile teams to estimate work, plan releases, and improve system architecture
Helped refactor the backend from a more monolithic setup into a cleaner, modular service structure
Technologies & tools
Node.jsTypeScriptPHPLaravelMySQLPostgreSQLKafkaKubernetesDockerREST APIsRedisMicroservices