Frontend Engineering
React, Next.js, TypeScript, state & API integration
Ajis DzalparoLet's talkHello, I'm
Frontend-focused · Backend capable
Frontend Engineering · Backend Development
I build modern web applications and practical business systems, combining strong frontend engineering with growing backend and ERP experience.
About me
I'm a software developer with professional experience building production web applications and business systems.
Professional experience
Production experience across interfaces, APIs, databases, and operational software.
React, Next.js, TypeScript, state & API integration
NestJS, Prisma, PostgreSQL & operational workflows
Practical web products and engineering opportunities
Work history
A concise career timeline generated from professional work.
Frontend Developer · Backend Developer · Full-time
Indonesia
Building production frontend applications and backend workflows for POS, ERP, inventory, and warehouse systems.Services & capabilities
I turn business requirements into maintainable web products.
Discuss your projectFast, responsive websites and landing pages built to convert.
Clear interfaces for data, users, reports, and daily operations.
Custom software that simplifies repetitive operational work.
Reliable sales, stock, warehouse, and transaction workflows.
New product features, UI refinement, performance, and bug fixes.
End-to-end web products with APIs, databases, and deployment.
Engineering stack
Frontend-first engineering supported by practical backend and delivery tools.
Professional work
Company work is presented as a responsibility summary only.
Built a tablet-first POS interface with real-time bidirectional data, multi-user coordination, interactive table management, responsive architecture, and synchronized order state.
Developed backend architecture for warehouse and inventory modules, POS synchronization through REST APIs and webhooks, inbound/outbound logistics tracking, and transaction-safe stock workflows.
Built a consistent SaaS interface, complex security dashboard, AI recommendation experience, optimized data-heavy components, and cross-border collaboration.
Developed responsive warehouse workflows for inbound, outbound, stock, and product tracking; integrated REST APIs, reusable UI modules, RFID printing, and AI-assisted product classification.
Adapted an existing WMS for garment inventory flows covering inbound, outbound, and stock opname, with RFID integration for faster operational stock checks.
Built modular warehouse interfaces, real-time REST API data, long-list performance, cross-team operational workflows, and QR label printing for inbound items.
Developed a responsive POS for a gold retail business with product and stock synchronization, transaction calculations, receipt printing, and precious-metal sales workflows.
Personal projects
Independent projects with public demos or repositories.
Valomock is a web-based SaaS platform that helps developers create mock APIs quickly without building a backend first. Users can define API routes, customize JSON response structures, and instantly generate live API URLs that can be connected directly to frontend applications. Valomock is designed to support frontend development, prototyping, testing, demos, and situations where the actual backend is not yet available. The entire service is delivered digitally through the Valomock website, with no physical products or shipping involved. Valomock operates under a Software as a Service (SaaS) business model, with plans to offer both free and paid tiers based on features, usage limits, number of endpoints, API requests, and other service capacities. Valomock is developed and managed by Dzalparo Labs as a digital product focused on helping developers and software teams build and test applications faster.
Mrjee Print (or Mrjee Print Bridge) is a local-first, lightweight silent printing application for Windows that enables web-based applications like Point of Sale (POS), Warehouse Management Systems (WMS), and ERP tools to communicate directly with local printers without requiring a cloud connection or a user account. By operating entirely offline, it ensures maximum data privacy and security while utilizing bearer token authentication and strict Cross-Origin Resource Sharing (CORS) configurations to prevent unauthorized access from external websites.
Independent public project.
I turn business requirements into maintainable web products.
Discuss a projectFocused, responsive experiences that make complex work easier.
Code and architecture designed for change and growth.
Technical decisions connected to real outcomes.
Freelance inquiry
Have an idea or product that needs an engineer? Tell me what you're building.