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Jerywin Bayawan

Jerywin Bayawan

453 followers - 127 following

Software Developer

Full Stack Engineer • Problem Solver • Digital Creator

https://quickee.online

Software developer building practical, secure, and scalable business systems for automation, operations, and digital transformation.

Headline

Building practical, scalable web systems for business operations and product teams.

Location

Philippines

Availability

freelance

Timezone

GMT+8

Experience

3+ years

Services

Product engineering
System modernization
Workflow automation
Technical consulting

Skills

Tools and technologies I work with

frontend

7 skills

ReactTypeScriptTailwindCSSNext.jsViteReact ExpoFlutter

backend

8 skills

Node.jsExpressPostgreSQLRedisREST API DesignJWT AuthenticationSequelizeLaravel

devops

5 skills

DockerNginxCI/CDLinux Server DeploymentCloudflare Tunnel

security

8 skills

RBACSession SecurityCSRF ProtectionXSS MitigationRate LimitingPassword Hashing (Argon2 / bcrypt)Fail2banCaddy/Reverse Proxy

tools

4 skills

GitGitHubVS CodePostman

Experience

My professional journey so far

November 2025 - Present

Current

Current Role

IT Specialist

Global Telemedicine Corp

November 2025 - Present

ReactNode.jsPostgreSQLDocker
  • Built internal backend systems and supported frontend development for business applications such as POS, HRIS, and ERP platforms. These systems include employee management, payroll, inventory tracking, item assignment, employee ID generation, compensation and incentives, dynamic benefits, and support for multiple private and government partners. Also developed a mobile attendance application using phone fingerprint authentication and geolocation, with device registration for added security. The system also supports leave requests, hiring posts, and social media sharing through public links.

January 2024 - June 2026

Full Stack Developer

Freelance

January 2024 - June 2026

ReactNode.jsPostgreSQLDocker
  • Developed different business systems, including an Immersion Management System, a Faculty Evaluation System, and an AI-based agriculture system for an LGU rice project. The agriculture system uses a vectorized database and AI refinement to provide answers based on stored data, instead of relying only on the AI model itself.

January 2023 - May 2024

Intern

On the Job Training

January 2023 - May 2024

ReactNode.jsPostgreSQLDocker
  • Built an internal system for DOST to manage logbook records, track payments under the Small Enterprise Technology Upgrading Program (SETUP), and enroll business partners into the system.
  • Built a capstone project using C# Windows Forms for a fingerprint-based voting system, designed to improve voter verification, reduce duplicate voting, and make the voting process more secure and organized.

Contact

Reach out for projects, collaborations, or general questions

[email protected]

Social Profiles

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