# Jastine Formentera

Jastine Formentera is a remote worker on Himalayas, Software Engineer at Fulcrum Solutions, based in Philippines.

Source: https://himalayas.app/@jastineformentera

```text
Full-stack software engineer at Fulcrum Solutions who developed StepCast and reduced production defects by 25%.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Philippines |
| Authorized to work in | Philippines |
| Salary expectations | 120k+ PHP |
| Job categories | Full Stack Engineer, React Native Engineer, React Native Developer, Front End Developer |
| Skills | Full Stack Software Development, Mobile Application Developer, Frontend Development, Backend Development, API Integration, Authentication, CI CD, Testing Automation, Integration Testing, Performance Optimization, Type Safe APIs, Internationalization, Push Notifications, Offline Data Management, React |
| Website | https://jastineformentera.netlify.app |
| LinkedIn | https://linkedin.com/in/jastineformentera |
| GitHub | https://github.com/Enitsaj13 |

## About

```text
At Fulcrum Solutions, I led mobile development for StepCast, an AI-assisted product manual platform, and developed its Next.js Super Admin workflows. I also optimized GitHub Actions CI/CD pipelines, reducing production defects by 25%.

I developed and maintained ForSure, an AI-powered healthcare and insurance mobile application, implementing authentication, internationalization, push notifications, and healthcare member workflows. For Gogira, an education platform, I delivered features across admin, school, partner, and affiliate workflows and reduced redundant API requests by 30%.

Previously, I contributed to Sun Life's Digital Tool Modernization initiative, developing and maintaining enterprise web applications and building reusable forms and frontend components. Across other roles, I developed mobile applications including Applete and a stock trading app, and migrated the HAT mobile application from Ionic to React Native.
```

## Experience

### Software Engineer

Fulcrum Solutions. May 2025 - Aug 2026

```text
Led mobile development of StepCast using Expo and React Native, managed EAS builds and TestFlight distribution, and developed Next.js Super Admin workflows. Also developed and maintained the ForSure healthcare app and the Gogira education platform, delivering end-to-end features and optimizing API integrations.
```

Skills: Expo, React-Native, TypeScript, Next.js, EAS-Builds, TestFlight, GitHub-Actions, Codex, Redux-toolkit, Unistyles, i18n, Push-Notifications, Amazon-Kiro, Claude, Tailwind, Tanstack-Query, Zustand, React-Hook-Form, Zod, NestJS

### Software Engineer

MDI Novare / Sun Life. Jul 2024 - Apr 2025

```text
Contributed to Sun Life's Digital Tool Modernization initiative, developing enterprise web applications. Built and maintained 100+ reusable web forms and frontend components, and developed BFF services and API integrations using Node.js, Lambda, and Express.
```

Skills: NodeJS, Lambda, Express, React, Backend-For-Frontend-(BFF), TypeScript, Zustand, Testing

### React Native Engineer

Codebility. Apr 2024 - Jun 2024

```text
Developed Applete from Figma designs, implementing mobile screens, navigation flows, API integrations, and predictable application state.
```

Skills: Expo, React-Native, React-Navigation, Firebase, Zustand, Axios, Figma

### React Native Engineer

SMENation Philippines. Mar 2024 - Jun 2024

```text
Migrated the HAT mobile application from Ionic to React Native, modernizing architecture and improving performance. Rebuilt core mobile workflows, achieving a 35% improvement in screen loading times and a 30% reduction in redundant API requests.
```

Skills: Expo, React-Native, Tanstack-Query, WatermelonDB

### React Native Developer

Luna Securities Philippines. Jan 2023 - Jan 2024

```text
Developed and maintained the Luna stock trading mobile application for Android and iOS, delivering production-ready features and integrating RESTful APIs. Improved application response times by 30% and reduced production bugs through integration testing.
```

Skills: React-Native, Android, iOS, REST-APIs, Integration-Testing

### Frontend Developer - React

TR Digital Services Philippines. Sep 2021 - Oct 2022

```text
Built and maintained scalable administration portals, reusable UI components, responsive dashboard workflows, and backend data integrations. Applied accessible component patterns and React performance optimization.
```

Skills: React, TypeScript, MUI, Redux, SASS, React-Router-V6, Context-API, UseReducer

## Education

### University of the East - Caloocan

Bachelor of Science, Information Technology

```text
Bachelor of Science in Information Technology degree from the University of the East - Caloocan.
```

## Tech stack

- GitHub Actions
- React Native
- Expo
- Sass
- PostgreSQL
- MongoDB
- Node.js
- Next.js
- NestJS
- Tailwind CSS
- Figma
- Android Studio
- Xcode
- Jest
- React
- axios
- JavaScript
- HTML5
- Firebase
- AWS Lambda
- Redux
- Zustand
- Vercel
- TypeScript
- Git
- Docker
- TestFlight
- WatermelonDB
- Playwright
- TanStack Query
- Vitest
- GitHub Copilot
- Zod
- React Hook Form
- Redux Toolkit
- Express
- AWS
- Claude
- REST APIs

To contact Jastine, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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