
Smart Nexus
Scalable REST API for handling large-scale event registrations and ticketing.
Halo! I'm Joevan Pramana Achmad, a software engineer with a deep focus on high-throughput backend services, resilient distributed architectures, and modern web applications.
My professional experience spans architecting robust API gateways and enterprise SAP synchronization at PT Kirana Megatara, designing secure backend services at BRI Life, and building high-concurrency platforms capable of sustaining 10,000+ requests per second without latency spikes.
This portfolio showcases the production microservices, data analytics pipelines, and interactive digital products I engineer using Go, Node.js, TypeScript, PostgreSQL, and cloud architectures.
Peak traffic without latency drop
Resilient microservices & failover
Enterprise ERP, SAP & cloud apps
BigQuery, Docker & CI/CD pipelines
Production microservices, large-scale data warehouses, and reactive full-stack web applications.

Scalable REST API for handling large-scale event registrations and ticketing.

Interactive dashboard to analyze consumer purchasing patterns and product associations.

Automated WA birthday notification system to enhance customer engagement.

Full-service catering management platform with real-time order tracking.
Automated temperature monitoring system with Arduino.

Digital preservation platform for Indonesian indigenous languages and dialects.

Analyzing business performance data using BigQuery and Looker Studio.

A comprehensive library of reusable React components for rapid UI development.
Battle-tested languages, high-concurrency runtimes, and resilient cloud infrastructures.
High-throughput APIs, event-driven pipelines & distributed storage
Petabyte warehousing, ETL aggregation & predictive models
Performance-obsessed reactive interfaces & cross-platform apps
Clean architecture, CI/CD automation & secure authentication
Track record of shipping mission-critical systems across enterprise logistics, insurance, and academic research.
Engineered a secure API Gateway using PHP (CodeIgniter 3) to bridge and serve real-time factory data for the upcoming enterprise mobile application, seamlessly orchestrating data flow across servers.
Developed a recursive authentication mechanism to process complex organizational hierarchies, enabling secure, role-based data fetching specifically designed for mobile app users.
Optimized real-time SAP logistics data (Shipments, Delivery, Trucking) via advanced SQL queries, ensuring low-latency data delivery to the mobile frontend tracking system.
Developed and optimized scalable RESTful API endpoints using Node.js, significantly improving data retrieval latency for new application features.
Wrote and fine-tuned complex SQL queries in PostgreSQL, optimizing database performance and ensuring strict data integrity for backend services.
Designed and implemented efficient database schemas for new application modules, ensuring proper data normalization within the company's core system.
Engineered a customer engagement feature by building an automated birthday notification system using Node.js scheduled tasks (Cron jobs), directly enhancing user personalization.
Managed large-scale data processing pipelines in Google BigQuery, handling over 670,000+ transaction records efficiently.
Authored complex SQL queries to automate data aggregation and cleaning, ensuring data readiness for production-level dashboards.
Developed dynamic visualization tools using Looker Studio to monitor key system performance metrics.
Designed and developed a digital clock using Arduino Uno, integrating an RTC module for accurate timekeeping.
Built an automatic temperature monitoring system with a DHT11/DS18B20 sensor and Arduino Uno, improving efficiency and reliability in environmental monitoring.
Available for full-time engineering roles, high-concurrency distributed systems, and modern web application development.