Anthony Del Rosario

Senior Software Engineer

Santo Domingo, Dominican Republic

SUMMARY

Senior Software Engineer with 13+ years of experience architecting and delivering high-performance solutions across healthcare, finance, e-commerce, and telecommunications industries. Expertise in cloud migration, distributed systems, full-stack development, and leading engineering teams to implement scalable, production-grade applications.

SKILLS

  • Frontend: React / Vue / Angular / NextJS / Nuxt / Bootstrap / TailwindCSS
  • Backend: C# / JavaScript / TypeScript / Python / Java / Go / PHP
  • Frameworks: ASP.NET Core / ExpressJS / NestJS / Entity Framework
  • Cloud/DevOps: AWS (Lambda, CDK, S3) / Azure / GCP / Docker / Pulumi / CI/CD
  • Databases: MS SQL / Oracle / MySQL / PostgreSQL / CosmosDB / DynamoDB

EXPERIENCE

Milkmoney

May 2023 - March 2025 | Senior Software Engineer | Remote

  • › Led technical initiatives for a 10-person team, mentoring developers on React/NextJS, GoLang and AWS Lambda while consistently ranking as the top code contributor across multiple codebases.
  • › Architected infrastructure-as-code solutions using Pulumi and AWS CDK, establishing CI/CD pipelines with GitHub Actions and configuring AWS CloudFront/S3 deployments for improved reliability.
  • › Modernized legacy systems by refactoring PHP-based services to scalable Python APIs on GCP, while implementing engineering excellence through PR templates, code reviews, and unit testing practices.
  • › Collaborated closely with product management, providing accurate technical estimations and alternative solutions that balanced business needs with technical feasibility while migrating applications to LTS Node.js versions.
  • › Created comprehensive REST API documentation with Swagger/OpenAPI, enabling seamless integration with third-party services and significantly reducing onboarding time for new team members.
  • › Implemented automated testing strategies across frontend and backend systems, achieving 85%+ code coverage and reducing production incidents by over 60% year-over-year.

XUP Payments

Oct 2020 - May 2023 | Senior .NET Developer | Remote

  • › Led architecture and development of multiple RESTful APIs integrating Twilio, FirstData, and Elavon for merchant onboarding and payment processing using .NET Core, Entity Framework, and Azure CosmosDB.
  • › Designed and implemented role-based authorization system with OTP validation, enabling granular merchant information access and accelerating feature development.
  • › Developed internal CLI tools that optimized development environments and reduced infrastructure costs while maintaining high code quality through comprehensive unit testing.
  • › Led architecture, design, and development of KeybankBOS API for integrating with external SOAP services, creating custom SDKs and implementing background processes for form status verification.
  • › Implemented a data seeding system that bundled scripts into projects, enabling consistent API deployment across environments and merging approximately 475 PRs including new features and bug fixes.

Documo

Mar 2022 - Oct 2022 | Senior NodeJS Developer - Contract | Remote

  • › Refactored Angular components for improved code maintainability, creating more granular components that simplified future design changes and accelerated development.
  • › Implemented real-time communication features with socketio and optimized database operations using SequelizeJS/TypeORM on Google Cloud Platform.
  • › Developed and implemented highly requested file attachment feature for faxes, significantly increasing user satisfaction, sales growth, and customer retention.
  • › Integrated UX designer's specifications by creating new Angular components and services, enhancing the document workflow platform's usability and visual appeal.

Starbucks

Sept 2021 – Mar 2022 | Senior .NET Developer - Contract | Remote

  • › Migrated high-traffic distributed systems to Azure Cloud implementing Clean architecture with .NET 6, NServiceBus, and Azure Event Bus, improving system resilience while handling millions of transactions per second.
  • › Developed workers to process transaction packages and publish them to Azure Message Bus, ensuring seamless customer experience for Starbucks prepaid card operations.
  • › Created a PR template adopted organization-wide that accelerated feature development by improving code review efficiency and reducing time to merge.
  • › Successfully migrated infrastructure definition from ARM to Terraform, enhancing deployment consistency and reducing configuration errors.

Previous Experience

2011 - 2020 | Senior Software Engineer & Technical Lead | Various Organizations

  • › Led development of financial systems for government and banking sectors, reducing front-end bugs by 87% through improved testing practices and e2e testing.
  • › Designed and implemented payment gateway RESTful API using WCF and Oracle, enabling businesses to submit transactions for approvals and manage their user pools.
  • › Implemented Sherlock Vision System API for automated package inspection in a healthcare manufacturing environment, reducing annual costs by $180k USD.
  • › Designed and developed georeferenced property control system for government, migrating platforms from VB to C# while implementing custom WCF components for polygon validation.
  • › Created Salesforce applications with APEX and Aura Components, implementing integrations with external services and developing an internal forum comment system.
  • › Reduced inventory report generation time from 3 days to 15 minutes by optimizing SQL Server stored procedures and implementing automated Excel exports with Delphi.

PROJECTS

Cross-Platform Mobile Application

2024 | Lead Software Engineer & Architect

  • › Developed a React Native application using Expo for iOS, Android, and web platforms, integrating Firebase for authentication, storage, and database functionalities while implementing phone number verification for secure user authentication.
  • › Implemented real-time messaging capabilities using SendBird and advanced search functionality with Algolia for user matching, creating a seamless and responsive user experience.
  • › Built Firebase Cloud Functions for backend validations and email notifications, while establishing CI/CD pipelines with GitHub Actions that utilized environment configurations and secrets for secure deployment.
  • › Delivered the complete application in just 3 months with pixel-perfect implementation of Figma designs, maintaining consistent app behavior across all target platforms with no timeline disruptions.

OpenRefine .NET SDK

Open Source Contribution

  • › Developed and maintained a .NET Core library SDK for OpenRefine as an open source contribution, enabling seamless integration between .NET applications and OpenRefine's data cleaning and transformation capabilities.

Preciopolis

Ongoing Project | Price Comparison Platform

  • › Developing a comprehensive platform that scrapes product and service prices from various Dominican Republic retailers, providing consumers with price comparison data and historical price trends.
  • › Building analytics features to track price variations over time, identify the most economical vendors, and alert users to significant price changes for monitored products and services.