My Experience

Migrated legacy services to Go modules and improved system observability and stability.

• Migrated legacy services from GOPATH style to a Go modules-based repository using the Go-Kit generator library (orders-listener, orders, device, device-gateway, entity, service-type, vehicle, vault).
• Implemented APM-based logging across service and repository layers.
• Performed unit tests in the repository layer.
• Resolved a bug in the Architect common library.
• Contributed to cloud migration (GCP to Huawei Cloud) for 10–20 services using Jenkins and Argo CD.

Developed backend features for a sales module and approval workflows.

• Developed the backend for the sales module, focusing on the Opportunity API.
• Engineered a custom YAML-driven approval workflow system allowing tailored approval logic.
• Designed and implemented the Plan Canvas API for streamlined planning and visualization.

Rebuilt backend systems for compliance and notification services.

• Designed and implemented backend APIs for obligation and CMS services, including S3 proxy logic.
• Built a real-time notification service utilizing NATS and WebSockets.
• Improved document processing with a publish-subscribe pattern and concurrent Golang workers.
• Engineered service-to-service authentication via gRPC and JWT middleware.

Developed APIs and workflows for a Loan Origination System.

• Designed and implemented APIs for a multi-product Loan Origination System (LOS).
• Built surveyor logic and assignment workflows using Java and BPMN Camunda with RabbitMQ coordination.
• Presented knowledge-sharing sessions on gRPC streaming with Google APIs and Golang.

Designed core APIs for order processing and paylater systems.

• Designed paylater core API and entity relationship diagrams.
• Developed core API with Echo framework, PostgreSQL, and Apache Kaa for resilient order processing.
• Implemented clean architecture structure.

Implemented backend architecture for back-office and mobile APIs.

• Designed and implemented architecture and ERDs for back-office API.
• Implemented pagination for mobile and desktop APIs using Go-Fiber and PostgreSQL.

Created analytics and banner APIs and integrated notifications.

• Created banner API and Cron Jobs for managing banners.
• Created analytics API for backoffice dashboard (user, transaction, product analytics).
• Integrated notifications with gRPC protobuf and Apache Kafka.

Built document processing microservices and migrated web platforms.

• Migrated main and admin websites to Next.js (v4) with new authentication and rendering structure.
• Created document microservice V4 for PDF to structured JSON conversion using Python (OCR) and Go (processing).

Led the team and managed business logic implementation.

• Established operation strategy and led the team.
• Designed business logic and managed cash-flow.

Developed frontend architecture for admin dashboard.

• Created base architecture for frontend using Next.js.
• Implemented server-side and client-side fetching APIs.
• Designed custom hooks for auto-fetching data.

Developed frontend for driver management and mobile apps.

• Created Frontend with Next.js for Kasumi Driver Management.
• Developed Kasumi Mobile Apps and QR-Code Scanner using React Native.
• Implemented frontend logic and API integration.