Herman

PT. Global Digital Niaga (Blibli.com) · Jakarta, Indonesia

• Architected a custom Node.js SSR framework supporting micro-frontend architecture with SSR, ISR, and PPR rendering strategies, improving performance and SEO for critical shopping page experiences.
• Created documentation and AI agent skills to accelerate SSR development and onboard engineers to the custom SSR framework.
• Collaborated with the SEO team to optimize SEO-critical pages using the custom SSR library, improving page performance and implementing JSON-LD schema rendering on the server.
• Joined the SSR implementation team, contributing through pair programming, code reviews, and architecture discussions, and gradually delegating SSR feature ownership to grow team autonomy.
• Collaborated with platform engineers on Docker, Kubernetes, Helm, and Argo CD deployment configurations for frontend services.
• Created documentation and AI agent skills to help developers debug CI/CD and deployment issues.
• Configured Nginx API gateways and routing strategies in collaboration with cross-functional engineering teams.
• Developed internal engineering tools and led knowledge-sharing sessions to improve team productivity and mentor developers.
• Built monitoring dashboards for micro-frontend SSR services using Datadog.
• Ran sharing sessions with frontend teams on using distributed tracing and Datadog profiler to debug errors and analyse SSR performance.
• Collaborated with UX Engineers to develop a theme-based build system for sister companies (Blibli E-commerce and Tiket Travel Experience).
• Outperformed Nuxt by 5.9x RPS with 6x lower stable memory usage.
• Reduced mobile LCP from 76.5s to 7.3s on product pages and improved homepage mobile visually complete from 13.5s to 2.7s.

PT. Global Digital Niaga (Blibli.com) · Jakarta, Indonesia

• Collaborated with cross-functional teams across Product Detail, Search Results, Engagement Content, Seller Page, and Seller Experience on both customer-facing and seller-facing applications.
• Implemented tracking behaviour with the Analytics team using Google Tag Manager.
• Mentored new hires and interns through pair programming for knowledge sharing and problem solving.
• Contributed to sprint planning, technical discussions, and feature feedback with product managers and team members.
• Led the Official Store frontend migration from Vue 2 to Vue 3, enabling both patterns to run side by side without slowing down feature development.
• Integrated TypeScript types between frontend and backend using OpenAPI specs, reducing API contract mismatches and improving type safety across the stack.
• Built analytics dashboards to help sellers track and improve performance.
• Implemented seller page banner and layout customization features.
• Developed the Official Store seller registration and approval workflow.
• Built a broadcast messaging system for seller promotions and campaigns.
• Presented "Functional Vue with Composition and TypeScript" at Blitalk 2021, sharing migration practices and mentoring internal teams on modern Vue patterns.

Self Employed · Jakarta, Indonesia

• Built and maintained multiple full-stack applications alongside full-time employment, including a restaurant POS, laundry management platform, motorcycle dealership dashboard, and heavy equipment ERP.
• Developed Warteg Modern, a role-based restaurant POS with React, Redux, GraphQL, and PostgreSQL, featuring JWT authentication, AWS S3 image storage, and thermal receipt printing.
• Created Wishywashy, a laundry POS and management system with React, Redux, and an Express/Sequelize REST API, supporting invoice creation, customer management, and receipt printing.
• Built Bikedealer, a React SPA back-office for motorcycle installment sales using GraphQL, Bulma, and jsPDF for invoice generation.
• Developed Cipondo Powerindo, a Nuxt 3/Vue 3 ERP for heavy equipment tracking with Pinia authentication, Nitro backend, and Prisma/PostgreSQL database.
• Published codegen-openapi-ts, an open-source Node.js CLI library that generates TypeScript API clients from OpenAPI/Swagger specs using Handlebars templates and Rollup bundling.

Kairos Utama Indonesia · Jakarta, Indonesia

• Architected and developed enterprise internal portal solutions for Pertamina using ASP.NET MVC and .NET Framework.
• Implemented dynamic rendering architecture combining server-rendered shell templates with vanilla JavaScript DOM interactions.
• Built backend business logic using .NET Framework and Entity Framework, including DTO generation and database schema maintenance.
• Optimized stored procedures for heavy read-query workloads, reducing the Pertamina dashboard load time from 3 minutes to 14 seconds (97% improvement).
• Contributed to Indonesia gas station standardization and certification systems with cross-functional teams.
• Led a CMS project delivering news management, project dashboards, event calendars, secure file sharing with session-based watermarking, org hierarchy visualization, and media file explorer.

Mediatech · Tanjungpinang, Indonesia

• Provided hardware, software, and network support for clients across multiple locations.
• Installed, configured, and maintained computer systems, printers, and network infrastructure.
• Troubleshot technical issues and delivered user training to improve operational uptime.