Gian Esguerra

Available to hire

I’m a full-stack web developer specializing in building fast, scalable, and user-focused web applications.

About

I’m a full-stack web developer specializing in building fast, scalable, and user-focused web applications. With hands-on experience across front-end, back-end, cloud infrastructure, and browser extensions, I help businesses turn complex ideas into polished, reliable digital products.

My strongest skills include:
Front-end: React, Next.js, Vue, TypeScript, Tailwind
Back-end: Node.js (Express/Nest), Python (FastAPI), Java (Spring), REST APIs
Cloud & DevOps: AWS, Serverless architectures, CI/CD pipelines, Docker

Browser Extensions: Chrome/Firefox extensions, automation tools, workspace productivity apps

What sets me apart from other developers is my ability to work end-to-end: I can architect systems, write clean and maintainable code, design intuitive UIs, and deploy production-ready apps with performance and scalability in mind. I treat each project like a long-term product: focusing on code quality, maintainability, and deliverables that actually move your business forward.

I have industry experience in EdTech, HealthTech, FinTech, SaaS platforms, and E-Learning, helping clients build secure, data-driven applications tailored to real user needs. Whether you’re launching a new product or improving an existing one, I bring a practical, problem-solving mindset to deliver high-impact results quickly and efficiently.

Employment and project experience

System Administrator Aeon Technologies, Inc
Jul 2025 - Nov 2025

Full-stack Developer Be Structured Technology Group
May 2021- May 2025

PHP Developer Health Innovations
May 2019- Apr 2021

  • Joined November 2025

Languages

  • EnglishFluent
  • JapaneseIntermediate

Industry experience

  • Software & Internet
  • Education
  • Healthcare
  • Professional Services
  • Media & Entertainment
  • Real Estate & Construction

More experts in Manchester, United Kingdom

Projects · 2

BossCat – Home Repair & Service Booking App

Role: Full-Stack Developer
Website: https://www.twine.net/signin

BossCat is a home repair and service marketplace that connects customers with trusted repair professionals. The platform provides easy booking, transparent pricing, and reliable service management.

Highlights:

  • Built service listings, provider profiles, and customer booking flows.
  • Developed scheduling, order management, and notifications logic.
  • Implemented secure authentication and multi-role user accounts.
  • Contributed to UI components and responsive user flows.
  • Improved onboarding, dashboards, and customer experience.
BossCat
  • AI Developer
  • Back-End Developer
  • Full Stack Developer

MyThinkingCap – AI-Powered Learning Management System

Role: Full-Stack Developer (Supabase, Node.js, FastAPI)
Website: https://www.twine.net/signin

MyThinkingCap is an AI-driven learning management system focused on adaptive learning, automated tutoring, and real-time study support. I contributed to core backend functionality and AI integration.

Highlights:

  • Implemented authentication, real-time sync, and database logic using Supabase.
  • Built backend services using Node.js and FastAPI.
  • Developed interactive learning flows including quizzes and AI-generated study plans.
  • Integrated AI features for personalized content recommendations.
  • Contributed to dashboards, analytics, and user experience improvements.
MyThinkingCap – AI-Powered Learning Management System
  • AI Developer
  • Database Developer
  • Full Stack Developer

Work experience

Full Stack Web Developer · Be Structured Technology GroupJul 2021 – Jan 2026 · 4 yrs 7 mos

Built Node.js and Python FastAPI services powering multi-user SaaS admin portals and reporting tools. Developed modular REST APIs, authentication flows, and RBAC systems handling 1,000+ active users. Designed FastAPI microservices for analytics pipelines, improving data processing speed by 85%. Integrated OpenAI + LangChain to automate summaries and internal reporting, reducing workload by 80%. Migrated legacy PHP/Laravel systems to modern Node.js + FastAPI stacks, cutting maintenance effort by ~25%. Implemented real-time dashboards using WebSockets + Chart.js for live operational insights. Reduced API latency through query optimization and refactoring, improving backend throughput by ~25%. Automated deployments via Docker + GitHub Actions, reducing release cycle time from 12–24 hours to 2 hours. Mentored developers and improved code review processes, reducing PR rework rate by 20%.

PHP Developer (3rd Shift) · Health InnovationsMay 2019 – May 2021 · 2 yrs 1 mo

- Delivered 20+ Laravel/WordPress features across multiple client projects. - Built Vue.js + Laravel frontends that increased client engagement by 22%. - Improved database performance by 50% using indexing and caching techniques. - Assisted in migrating client sites to secure, scalable hosting environments.

Education

Bachelor of Science in Computer Science · University of Guam2017 – 2021

Certifications and awards

AWS Certified Developer - Associate2022 – 2025
React - The Complete Guide2020 – 2025
Zend Certified PHP Engineer2019 – 2025

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