(01) — Portfolio / 2026Available for engagements
Kaka Alfuna Zhafran

Fullstack & DevOps Engineer focused on scalable systems, cloud infrastructure, and AI/ML pipelines for high-traffic multinational platforms.

Selected Work
Resume
Go✦Node.js✦Next.js✦React✦Python✦AWS✦Docker✦PostgreSQL✦MongoDB✦Redis✦NGINX✦TensorFlow✦LangChain✦gRPC✦Vue.js✦FastAPI✦Go✦Node.js✦Next.js✦React✦Python✦AWS✦Docker✦PostgreSQL✦MongoDB✦Redis✦NGINX✦TensorFlow✦LangChain✦gRPC✦Vue.js✦FastAPI✦
(02) — Expertise

A full-stack discipline,end-to-end ownership.

Backend Engineering
01

Backend Engineering

GoNode.jsPythonPHP / LaravelgRPCMicroservices
Frontend & SEO
02

Frontend & SEO

Next.jsReactVue.jsTailwind CSSSEOGEO
DevOps & Cloud
03

DevOps & Cloud

AWS (ECS, EC2)GCPDockerNGINXGitHub ActionsLinux
Databases
04

Databases

MongoDBPostgreSQLMySQLRedis
AI / Machine Learning
05

AI / Machine Learning

CatBoostLLM Fine-TuningLangChainTensorFlowPyTorchOpenAI / Gemini
(03) — Selected Work

Projects shippedwith real impact.

2026

Kisum

AI-Powered Event Intelligence

End-to-end predictive analytics platform for event promoters. Hybrid pipeline combining CatBoost and LLMs, achieving 80% accuracy in historical backtesting.

AI/MLCatBoostLLM
80%
Backtest accuracy
2025

Carousel Studio

AI Content Generator (SaaS)

Automated SaaS that generates Instagram carousel content from text inputs. Text-to-Text LLM architecture with Unsplash API for cost-efficient assets.

SaaSLLMAutomation
10×
Faster output
2025

P.CLUB

Global Ticketing Infrastructure

Concurrent ticketing backend with event-driven architecture, Docker containerization, and NGINX reverse-proxy for multi-country traffic.

BackendDevOpsHigh-Traffic
4
Countries served
(04) — Career

Three years,systems at scale.

Jan 2026 — May 2026

SYSTEMCRAFT.ID

Lead Fullstack & DevOps Engineer

Remote

  • Deployed high-stakes banking apps for 100,000+ users with 100% uptime
  • Architected AWS ECS Auto-scaling for zero-downtime deployments
  • Engineered GEO-optimized platforms for AI discovery
  • Managed self-hosted environments with sub-second load speeds
Jul 2024 — Dec 2025

PT. Five Elements Agency

Fullstack & Infrastructure Engineer

Denpasar, ID

  • Built global ticketing platforms across AU, SG, MY, ID
  • Mitigated race conditions with MongoDB Replica Set & Distributed Transactions
  • Provisioned containerized infrastructure with AWS, GCP, Docker
  • Productionalized Python data-processing pipelines
Feb 2024 — Sep 2024

PT. Cakra Techno Nusantara

Frontend & Automation Engineer

Tangerang, ID

  • Developed production interfaces with Next.js and Vue.js
  • Designed automated testing with Selenium and Locust
  • Reduced manual QA cycles by 40%
(05) — Credentials

Education &certifications.

Education

Eduwork

Full Stack Developer (Laravel & Vue.js)

Aug 2023 — Nov 2023

Certifications

Quality Assurance Basic

My Skill

May 2024

Full Stack (Laravel & Vue.js)

Eduwork

Aug 2023

(06) — Get in touch

Let's buildsomething durable.

Open to senior fullstack, infrastructure, and AI/ML engineering roles. Remote, hybrid, or relocation — all welcome.

kakaalfuna3@gmail.com
LinkedIn
GitHub
EMAIL
kakaalfuna3@gmail.com
PHONE
+62 831 2421 4220
LOCATION
Wonosobo, Indonesia · Willing to relocate
LANGUAGES
Bahasa (Native) · English (Professional)