Simera Professional Key (SPK)

Rafael H

Dominican Republic

Full Stack Developer

$ 3,500/month

9 yrs exp

Results-driven Software Developer with over 9 years of professional experience across full-stack application architecture, agile systems analysis, and enterprise database performance optimization. Expert in the Microsoft backend infrastructure (.NET C#), modern frontend frameworks (Angular, React), and robust Oracle SQL/PL-SQL automation. Confirmed capacity for converting complex operational requirements into user-focused, pixel-perfect interfaces and secure, highly available technical designs w…

Skills

  • AngularJS
  • CSS
  • CSS3
  • Docker
  • Git
  • HTML
  • HTML5
  • Java
  • JavaScript
  • MySQL
  • Node.js
  • Oracle SQL
  • PHP
  • PostgreSQL
  • SQLite
  • Typescript
  • Wordpress
  • JavaScript ES6
  • .NET Core
  • Angular
  • ReactJS
  • WordPress CMS
  • CSS 3
  • Java.
  • Supabase
  • Angular+17
  • MSQL
  • Type Script

Rafael H

Dominican Republic

Full Stack Developer

$ 3,500 /month

9 yrs exp

Results-driven Software Developer with over 9 years of professional experience across full-stack application architecture, agile systems analysis, and enterprise database performance optimization. Expert in the Microsoft backend infrastructure (.NET C#), modern frontend frameworks (Angular, React), and robust Oracle SQL/PL-SQL automation. Confirmed capacity for converting complex operational requirements into user-focused, pixel-perfect interfaces and secure, highly available technical designs w…

Skills

  • AngularJS
  • CSS
  • CSS3
  • Docker
  • Git
  • HTML
  • HTML5
  • Java
  • JavaScript
  • MySQL
  • Node.js
  • Oracle SQL
  • PHP
  • PostgreSQL
  • SQLite
  • Typescript
  • Wordpress
  • JavaScript ES6
  • .NET Core
  • Angular
  • ReactJS
  • WordPress CMS
  • CSS 3
  • Java.
  • Supabase
  • Angular+17
  • MSQL
  • Type Script

Full Stack Developer

CEDIMAT
June 2025 - present

Architected, refined, and deployed critical web platforms using modern Angular modules, TypeScript, and semantic HTML5/CSS3. Built scalable microservices and resilient backend APIs using C# .NET Core, implementing robust authentication patterns. Tuned high-volume database operations, deploying query speed adjustments and deep stored procedures using Oracle PL/SQL. Developed customized corporate software structures over WordPress, tailoring individual security plugins and core themes. Participated actively in Scrum sprints, enforcing strict version control models and streamlined code delivery pipelines.

Systems Analyst

CEDIMAT
September 2023 - June 2025

Elicited, detailed, and documented intricate business specifications from executives to map system solutions to medical-administrative flows. Designed comprehensive software architecture maps prioritizing transaction security, system decoupling, and data integrity. Choreographed full-lifecycle software engineering tasks, evaluating team code milestones and managing comprehensive QA testing runs.

Data Analyst & Programmer Analyst

Oscar A. Renta Negrón
January 2021 - December 2023

Programmed, refactored, and supported corporate information applications utilizing Java frameworks and robust SQL systems. Optimized legacy query architectures, dramatically reducing execution bottlenecks and maximizing older platform runtime efficiencies. Built and orchestrated automated visual business dashboards via Power BI, delivering critical KPI trends to executive panels. Partnered across commercial divisions to engineer technical solutions directly reflecting operational growth targets.

QA Engineer

REDDE
January 2021 - December 2022

Structured and performed complete QA script matrix setups, regression test catalogs, and functional suites across mobile and web platforms. Constructed automated end-to-end interface checks using Selenium WebDriver, tracking critical software issues directly through JIRA.

Technical Support Specialist

Oscar A. Renta Negrón
January 2019 - December 2021

Provided Tier 1 and Tier 2 technical support for hardware, enterprise system software, and local network configurations. Resolved workflow infrastructure incidents efficiently, maintaining technical documentation and knowledge base assets for recurring issues.

Junior Software Developer

DTE
January 2018 - July 2018

Contributed to web application maintenance using JavaScript, HTML/CSS, Python, and Java ecosystems. Wrote unit and integration test routines to reinforce application reliability and reduce deployment code failures.

Graphic Designer & UI/UX Specialist

Studio 51
January 2017 - September 2017

Designed user-friendly interfaces, wireframes, and high-fidelity interactive prototypes using Figma and Adobe XD. Conducted structural user testing and gathered usability feedback to improve component layouts and overall digital engagement.

Smart Scores

Communication
75
Role Fit
95
Adaptability
80
Problem-solving
80
Professional Presence
85
Drive/Initiative
85

Smart Skills

beta