Jaime Alonzo Zamudio Bustamante
Full-stack engineer & architect · Lima, Perú
Full-stack engineer and architect with 7 years in web and mobile development, preceded by 2 years in quality control and test automation. I have shipped products in the financial, education, tourism and gaming sectors in Peru, led a workshop at an international congress for digital transformation, and — on my own time — taken a marketplace app from an empty repository to both app stores.
Experience
Front End Web Developer — Globant Peru S.A.C (Los Angeles Times)
- Build and maintain front-end features for latimes.com in TypeScript and Handlebars templates within the Graphene CMS.
- Deliver ticket-scoped work across an established codebase — new functionality, fixes and template changes — on the team's review and release cadence.
- Work with editorial and engineering stakeholders to turn requirements into reusable components and templates on a high-traffic news platform.
Web UI Developer — Globant Peru S.A.C (Epic Games)
- Led frontend development on the Fortnite Cosmetic Validation Tool (React, TypeScript, Redux) inside a Turbo monorepo with a NestJS backend, contributing to backend work as well.
- Proposed and implemented a UI/UX redesign that cut task completion time by 15%, with responsive and PWA features built on Material-UI.
- Improved stability and performance: resolved critical bugs (18% fewer crashes), optimized component lifecycles and implemented SSR (12% faster load).
- Raised code quality with comprehensive test cases (12% fewer regression bugs), code review and documentation (10% faster onboarding).
- Reworked filtering components into shareable URLs, streamlining QA team workflows and cross-team collaboration.
- Streamlined delivery with Jira, agile practice and CI pipelines (18% faster deployment) at 100% client satisfaction.
Globant Peru S.A.C (Nu Skin Enterprises)
Web UI Developer
- Delivered features, fixes and unit tests for a React Native (TypeScript) app — 85% Jest coverage on new modules.
- Managed ContentStack CMS (localization, feature toggles) and Airship push notifications (12% higher engagement).
- Contributed to the AWS Lambda / DynamoDB backend and built a Node.js data-migration tool (saved 25 hrs per cycle, 99% data consistency).
- Authored Confluence documentation that reduced developer onboarding by 15%; promoted reuse, cutting redundancy by 15%.
Test Automation Engineer
- Built the VERA automation project (Appium, Java TestNG): 75% coverage, 45% less manual regression testing.
- Led automation strategy (22% faster execution) and ran tests on AWS Device Farm (30% optimized coverage).
- Managed Android/iOS releases via GitLab (12% fewer errors) and introduced shift-left testing (4 days faster time-to-market per sprint).
- Performed API testing on AWS Lambda (18 critical bugs resolved) and analyzed Datadog data (12% better feature usability).
Quality Control Analyst
- Designed and executed test cases (96% coverage of new features) and authored bug reports that cut resolution time by 22%.
- Conducted API testing via Postman (55+ defects found) and initiated web automation with Selenium and TestNG (65% core coverage).
- Tracked performance metrics (12% less bug leakage) and standardized test data creation (18% less setup time).
Freelance FullStack Developer — Glamar Peru Travel S.A.C.
- Built a MERN single-page app for client data management, improving efficiency by 33%, on a scalable MongoDB Atlas schema.
- Ran requirements directly with the client (97% feature satisfaction), with unit tests at 88% coverage and 96% fewer pre-launch critical bugs.
University of San Martin de Porres
Intern — Business Intelligence and Data Base Lab
- Built an internal web app for thesis scheduling (18% fewer conflicts) and processed class-schedule projections (12% better resource allocation).
Banco de la Nación
Intern — Projects and Innovation Division
- Refined SQL queries in ClearQuest, improving project-progress data accuracy by 28%.
University of San Martin de Porres
Intern — Business Intelligence and Data Base Lab
- Modeled business processes in Bizagi, documented academic processes referenced by 3 departments, and maintained lab server access.
Projects
Fitmatch
- Nx monorepo in TypeScript: three NestJS services (REST, admin, WebSocket), a React Native / Expo app, a Next.js admin dashboard, and Strapi 5 as headless CMS.
- ~1,900 lines of Terraform across staging and production: ECS Fargate, Multi-AZ RDS, ElastiCache, S3 + CloudFront, ALB with WAF, SES, Route 53.
- Event-driven notifications: Redis pub/sub → Socket.IO → Expo push, with in-app badges and background delivery.
Jean Maquera Portfolio
- Astro ships the site as static HTML with zero framework JavaScript; React loads only on the /admin Sanity Studio route.
- Sanity publish fires a Vercel deploy hook, rebuilding the static site; six GROQ queries hydrate it in one Promise.all at build time.
- Photo grid cells size themselves from each image's real aspect ratio, read from Sanity asset metadata in the GROQ query.
FluentMenu
- Lazy translation cached per dish and language in Postgres: gpt-4o-mini on the first request, invalidated when the dish changes, free after that.
- Culqi subscriptions built against webhooks that contradict both official doc sources — no metadata returns, so they resolve by our own provider id.
- Tenant isolation in PostgreSQL Row Level Security, with a separate operator policy set behind the admin console and every action audit-logged.
FitLedger
- Migrated an Express / Drizzle / SQLite prototype into an Nx monorepo on NestJS, Prisma and PostgreSQL, with domain types shared between web and API.
- Installable PWA with a Workbox NetworkFirst cache, so the ledger stays readable on patchy gym Wi-Fi and updates itself in the background.
- Per-user isolation at the framework level: a global JWT guard and a @CurrentUser decorator, so resource ids are never trusted from the client.
Technical skills
- Axios, FormData, HTML, CSS, JavaScript, React, React Native, Next.js, Redux, MUI, Material-UI, Sass, react-router, TypeScript, Jest, redux-toolkit, RTK Query, Zustand, ContentStack, Responsive Design, Progressive Web Apps, Server-Side Rendering, Component Lifecycle, npm, Cross-Browser Compatibility, Static Site Generation, Performance Optimization, Expo, EAS, Socket.IO, File-based Routing, Expo Router, React Hook Form, Zod, Tailwind CSS
- Express, GraphQL, NestJS, Node.js, TypeORM, Apollo Server, Apollo Client, TypeScript, Jest, Swagger, RESTful APIs, Prisma, Strapi CMS, Redis, Socket.IO, Passport, JWT, Webhooks, Rate Limiting, Cron Jobs, Redis Pub/Sub, Nodemailer
- DynamoDB, MongoDB Atlas, PostgreSQL, Prisma ORM, Redis
- AWS Device Farm, AWS Lambda, Cloudinary, Datadog, Firebase Authentication, Firebase Crashlytics, Heroku, Mailchimp API, Netlify, Render, ECS Fargate, ECR, RDS, ElastiCache, S3, CloudFront, SSM, SES, Rekognition, Route 53, ACM, ALB, WAF, CloudWatch, VPC, SNS
- Terraform, Docker, GitLab CI/CD, Nx Monorepo, EAS
- Appium, Selenium, TestNG
- Apollo Explorer, Git, GitHub, GitLab, Jira, Postman, TestLink, TestRail, Code Review, Continuous Integration
- Headless CMS, Monorepo, Multi-service, OAuth 2.0, Content Bundle Pattern, Event-Driven Architecture, Pub/Sub
- Prompt Engineering, SCRUM, Staffing, Agile Methodologies, Visual Studio Code
Education & languages
Bachelor in Computer and Systems Engineering