
David Nguyen
Senior FullStack Software Engineer with a Promise to Over Deliver
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Portfolio
Work experience
Senior FullStack Software Engineer (Rust, Golang, SolidJS)
DXC Technology • Full-time
Mar 2025 - Present • 1 yr 7 mos
Carbon Accounting Engine • Technical Execution: Developed high-performance microservices using Go (Golang) and Gin. Built robust data ingestion pipelines to process fragmented datasets (utility bills, fuel logs), integrating services via gRPC for low-latency communication. • Security & Infrastructure: Implemented secure identity management and RBAC using Ory. Managed service orchestration on AWS via Docker to ensure a scalable, cloud-native environment. • Database Optimization: Optimized PostgreSQL layers to handle complex carbon calculation logic and historical emissions tracking across multi-site enterprise reports. • Impact: Automated carbon accounting workflows, significantly reducing manual data entry and shortening the timeline for audit-ready sustainability disclosures. Fintech Transaction Monitoring & Audit Platform • Backend & Data: Designed a normalized PostgreSQL schema to store millions of records while maintaining ACID compliance. Optimized complex SQL analytical queries to achieve sub-second dashboard refreshes. • Frontend Excellence: Developed a state-heavy, responsive interface using SolidJS to visualize global transaction trends and anomaly detection maps. • Quality & Reliability: Established a Test Automation framework and Postman documentation to ensure zero-downtime during deployments, meeting the high reliability standards of financial software. • Impact: Reduced manual audit time by 60% through automated reporting and real-time anomaly detection.
Nfq
Full-time • 2 yrs 7 mos
Senior FullStack Software Engineer (Rust, Golang, NodeJS, ReactJS)
Aug 2023 - Feb 2025 • 1 yr 6 mos
- Led the end-to-end development of a highly scalable e-commerce platform, integrating Go microservices on the backend with a React frontend and Material-UI for a seamless user experience. The platform supported real-time product updates, personalized recommendations, and dynamic pricing, which resulted in a 25% increase in conversions and a 40% reduction in page load times. This project was delivered ahead of schedule and earned recognition from the client, resulting in a multi-year partnership and new business opportunities. - Led the full-stack development of a new car admin system, integrating React for an intuitive user interface with a Go-based backend that reduced administrative task time by 40%, streamlining operations and increasing company productivity. - Coordinated with cross-functional teams to deliver an end-to-end CMS solution that was implemented for multiple clients, directly contributing to a 15% boost in customer retention. - Conducted regular check-ins with the client for an enterprise e-commerce project, keeping them informed and involved in the development process, which resulted in high satisfaction and additional project engagements. - Mentored junior developers on best practices for full-stack development, fostering a collaborative team environment and helping junior team members build confidence in their skills.
Standard++ Backend Software Engineer (Rust, Golang, NodeJS)
Jul 2022 - Aug 2023 • 1 yr 1 mo
- Designed and implemented gRPC-based communication for an internal car admin system, which increased the speed of cross-service data exchange by 50% and significantly improved user experience for the admin dashboard. - Spearheaded the development of a mobile app backend for a customer review platform, which increased the app's user ratings from 4 to 4.5 stars on the Google Play Store within three months of launch due to improved stability and user experience. - Played a key role in the development and delivery of a new e-commerce feature for personalized product recommendations, which directly resulted in a 25% increase in average order value. - Enhanced the customer review app's backend, adding features like real-time notifications and review analytics, leading to a 0.5-star increase in ratings on Google Play Store. - Worked directly with the design team to improve the backend architecture of a CMS, enabling content updates to be pushed to the frontend in real time, greatly enhancing content management for clients.