Alexander Damaso Perez

Alexander Damaso Perez

About

Detail

Senior Full-Stack Engineer | TypeScript · NestJS · React/Next.js · GraphQL · PostgreSQL | Integrations & API Architecture | Remote (UTC-4)
Dominican Republic

Timeline


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Résumé


Jobs verified_user 0% verified
  • UpKeep
    Product Development Engineer
    UpKeep
    Jan 2026 - May 2026 (5 months)
    Owned end-to-end feature delivery across frontend and backend, spanning UI, service-layer logic, and authentication flows, leveraging TypeScript, React, Next.js, Node.js, NestJS, and GraphQL.

    Contributed to API design and third-party integration work, and participated in architecture, tooling, and scalability decisions, including performance work, caching strategy, and CI/CD pipelines.

    Investigated and resolved complex production issues, tracing root causes across frontend and backend systems.

    Designed AI-assisted development workflows — code generation, review support, requirements breakdown, and documentation — using tools like Claude Code to compress concept-to-production cycle time while maintaining code
  • Curri
    Full Stack Web Developer
    Curri
    Jul 2024 - Dec 2025 (1 year 6 months)
    Architected the integration layer connecting Curri to a half-dozen third-party delivery providers (Uber, Pronto, and others), designing a single interface over providers with divergent API structures, authentication models, and communication patterns. Established abstraction layers and boundaries to manage third-party integrations, and implemented distributed systems patterns including transactional outbox, sagas, and circuit breakers to ensure data consistency and system resilience.

    Redesigned the provider-selection architecture to surface every available delivery option in one request, handling variable upstream latency and partial failure so a slow or unavailable provider could not block a quote.

    Encapsulated each p
  • Protiv
    Frontend Developer
    Protiv
    Apr 2024 - Jul 2024 (4 months)
    Built responsive React interfaces with Material-UI and Tailwind CSS, translating design specs into accessible, cross-browser UI.

    Established reusable component patterns that held design consistency as the team scaled feature work.

    Tech: React, Material-UI, Tailwind CSS, JavaScript/TypeScript.
  • A
    Full Stack Developer
    AltSource Inc
    Oct 2023 - Mar 2024 (6 months)
    Led backend development on two projects in C# .NET Core, Entity Framework, and Microsoft SQL Server, including stored procedures, views, and query performance tuning.

    Built and maintained scalable REST APIs and backend logic in an Azure-hosted environment.

    Built a custom React table component from scratch with pagination, sorting, and filtering, and extended server-side rendered pages in a React application.

    Tech: C#, .NET Core, Entity Framework, Microsoft SQL Server, React, Azure, REST APIs.
  • Nestlé Purina North America
    CMS Developer
    Nestlé Purina North America
    Mar 2023 - Oct 2023 (8 months)
    Implemented CMS-driven features in GatsbyJS in close collaboration with design.

    Built a custom PDF generator that dynamically compiled and exported site content, improving content portability and offline access.

    Improved site performance and SEO through efficient data fetching and static site generation.

    Tech: GatsbyJS, React, Drupal, Shopify, JavaScript.
  • Amherst
    Full Stack Developer
    Amherst
    Dec 2021 - Mar 2023 (1 year 4 months)
    Built and shipped web applications in Next.js, React, GraphQL, and NestJS, implementing server-side rendering and optimized data fetching. Led architectural decisions for the Amherst platform, specifically managing state across global stores, server cache, and local component state using React, Redux, and React Query.

    Delivered frontend and SEO improvements that contributed to a 25% increase in user engagement.

    Tech: Next.js, React, GraphQL, NestJS, TypeScript, Tailwind CSS.
  • Constant Contact
    Full Stack Developer
    Constant Contact
    Jan 2021 - Dec 2021 (1 year)
    Built and maintained REST APIs in Node.js, Express, NestJS, and TypeScript, along with the React and Material-UI interfaces consuming them.

    Improved API communication efficiency and data management across the platform.

    Tech: Node.js, Express, NestJS, TypeScript, React, Material-UI, MongoDB.
  • Plaza Lama
    Full Stack Developer
    Plaza Lama
    Mar 2018 - Dec 2020 (2 years 10 months)
    Designed and built a GraphQL and Node.js web application that optimized customer order logistics.

    Migrated server-rendered flows to AJAX, reducing add-to-cart times and improving order-management efficiency.

    Integrated point-of-sale (POS) systems with inventory and sales platforms, and implemented offline-mode solutions using Apollo Client to ensure application functionality during connectivity loss, including synchronization of pending mutations and conflict resolution.

    Tech: Node.js, GraphQL, React, TypeScript, PHP, C#, Shopify, Apollo Client.
  • H
    Software Developer
    Hunter Security Services
    Jan 2017 - Feb 2018 (1 year 2 months)
    Built a location-tracking application in C#, ASP.NET MVC, and Razor, integrating the Leaflet library and geolocation features that saved the business over USD $10,000 per month.

    Improved customer satisfaction through enhanced location-based functionality.

    Tech: C#, ASP.NET MVC, Razor, JavaScript, HTML5, CSS3, Leaflet.
Education verified_user 0% verified
  • Universidad Federico Henríquez y Carvajal UFHEC
    Bachelor's Degree, Computer Science
    Universidad Federico Henríquez y Carvajal UFHEC
    Jan 2012 - Jan 2017 (5 years 1 month)