Senior Full Stack Developer · San Pedro, Laguna

Software engineer / full-stack specialist

John VincentArmamento.

Building dependable full-stack products with C#, .NET Core, and Angular—while bringing deep experience in enterprise CMS architecture, integrations, and production stability.

I turn complex product requirements into maintainable full-stack systems—and stay close enough to architecture, testing, and delivery to make sure they keep working.

Selected experience

A career built across the stack.

Full-stack delivery / Enterprise platforms / Production support

01

May 2026 — Present

Ascendion

Senior Full Stack Developer

Senior full-stack development using C#, .NET Core, Angular, and a modern engineering toolchain.

  • C#
  • .NET Core
  • Angular
  • Docker
  • gRPC
  • Scalar
  • StyleCop
  • GitHub Copilot
  • GitHub
  • Vitest
  • Moq
  • Current full-stack technology focus includes C#, .NET Core, and Angular.
  • Engineering toolkit includes Docker, gRPC, Scalar, StyleCop, GitHub Copilot, GitHub, Vitest, and Moq.
02

April 2025 — May 2026

CloudEmployee

Senior .NET Developer

Optimizely CMS 12 backend development focused on scalable architecture, clean integrations, and dependable releases.

  • Optimizely CMS 12
  • ASP.NET Core
  • C#
  • REST APIs
  • CSP
  • Own server-side architecture, business logic, and integrations for an ASP.NET Core platform while partnering with a dedicated frontend team.
  • Serve as a core developer on a full backend refactor, improving code structure, maintainability, and long-term scalability.
  • Develop custom Optimizely content types, blocks, APIs, and scheduled jobs using .NET best practices.
  • Implement and configure Content Security Policy to strengthen security and standards compliance.
03

May 2022 — April 2025

Accenture

Software Engineer

Sitecore engineering and L3 production support for business-critical websites and complex platform incidents.

  • Sitecore
  • C#
  • .NET
  • Helix
  • ServiceNow
  • Azure DevOps
  • Resolved complex Sev-1 and Sev-2 incidents through deep debugging, root cause analysis, and durable production fixes.
  • Led Sitecore upgrades, hotfixes, and security patching while ensuring custom code and third-party module compatibility.
  • Implemented Sitecore Helix architecture to improve website performance, scalability, and maintainability.
  • Maintained custom MVC renderings, pipelines, workflows, and components across long-running Sitecore solutions.
04

January 2019 — March 2022

Raquel Pawnshop Inc.

Programmer

Internal web and Windows application development supporting HR, operations, and jewelry pawning workflows.

  • ASP.NET
  • VB.NET
  • Web Forms
  • MSSQL
  • Bootstrap
  • Created and maintained web and Windows applications requested by departments across the company.
  • Built the HR Management System with ASP.NET Web Forms, VB.NET, HTML, CSS, Bootstrap, and Microsoft SQL Server.
  • Created SQL stored procedures, views, and functions required by business applications.
  • Maintained the Jewelry Pawning System and delivered ongoing application support and modifications.

Working knowledge

Stack & systems.

  1. 01.NET Core
  2. 02C#
  3. 03Angular
  4. 04Docker
  5. 05gRPC
  6. 06Scalar
  7. 07ASP.NET
  8. 08Optimizely
  9. 09Sitecore
  10. 10MSSQL
  11. 11REST API
  12. 12Entity Framework
  13. 13TypeScript
  14. 14HTML & CSS
  15. 15Bootstrap
  16. 16VB.NET
  17. 17Azure DevOps
  18. 18GitHub
  19. 19GitHub Copilot
  20. 20StyleCop
  21. 21Vitest
  22. 22Moq
  23. 23JIRA
  24. 24ServiceNow
  25. 25LINQ
  26. 26Agile

Education & credentials

Foundations and proof.

Education / 2013—2018

BS Computer Engineering

STI College Lucena

Certification / 2025

Optimizely PaaS CMS Developer

Optimizely

Certification

Azure Fundamentals

Microsoft AZ-900

Open a line

Let’s build something dependable.