Portfolio

Arian Saputra

DevOps / Cloud Engineer

DevOps and Cloud Engineer with 8+ years building and operating high-performance backend systems. Specialized in Go and Python services on AWS, with production experience in container orchestration, automated CI/CD, and national-scale infrastructure. Owner of two production platforms, author of open-source developer tooling in Rust and Go, and recently focused on building and operating LLM-backed features in production.

Yogyakarta, Indonesia · Remote 8+ Years Experience
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DevOps Cloud AWS Kubernetes Go Rust Microservices CI/CD PostgreSQL LLM Multi-tenancy Remote

Highlights

8+ years building and operating backend systems, from national-scale infrastructure to multi-tenant SaaS.
Owner of two production platforms: a Kubernetes-based multi-tenant PaaS and a multi-tenant marketplace.
Ships LLM-backed features to production — provider-agnostic, bounded, and safely degrading.
Author of open-source developer tooling in Rust and Go, including a diagram engine published on crates.io.
AWS in production: ECS Fargate migration, IAM least-privilege hardening, and multi-target CI/CD.

Ventures

Platforms I own and operate end to end — product, architecture, and infrastructure.

EasyRun

Owner & Platform Engineer

easyrun.io ↗

Multi-tenant PaaS where users deploy ready-made applications onto a Kubernetes (K3s) cluster through a web panel, without touching Kubernetes directly.

  • — Tenant isolation per Kubernetes namespace with NetworkPolicy, ResourceQuota, and LimitRange enforced per subscription plan.
  • — Single-gateway security model: only the BFF API is public and JWT-authenticated; orchestrator and DNS services stay internal behind BasicAuth.
  • — Tag-driven CI across six repositories, with every significant technical choice recorded as an ADR.
  • — Live billing covering top-up, balance, subscription, and renewal via payment gateways.
Go Kubernetes (K3s) React PostgreSQL systemd CI/CD

WACCA — PT. Ikavia Digital Nusantara

Owner & Principal Engineer

ikavia.com ↗

Multi-tenant laundry marketplace connecting consumers with partner outlets — pickup, wash, and delivery in one app, serving two mobile clients and a platform superadmin panel.

  • — Designed the service ecosystem: core business service in Go integrating with shared multi-tenant platform services over REST and RabbitMQ.
  • — Built the internal accounting module — journal/ledger, chart of accounts, daily closing with approval, tax masters, commission, settlement, and withdrawal reconciliation.
  • — Authorization model with human-principal vs service-account guards, per-role permissions, and email-verification gating on go-live actions.
Go PostgreSQL RabbitMQ Multi-tenancy REST

go-routine.com

Founder & Engineer

go-routine.com ↗

Habit and routine planner with an LLM-backed planning assistant built on typed judgments rather than free-text generation.

  • — AI assistance returning calibrated probabilities consumed directly by application logic, instead of free-text output parsed by hand.
  • — Provider-agnostic assistant interface — provider configured per deployment, none hardcoded; AI routes degrade cleanly when unconfigured.
  • — Bounded payloads and hard request timeouts on every model call.
Go Gin GORM PostgreSQL RabbitMQ Docker

Work Experience

Cloud Engineer

PT. Acarya Data Esa

Current

2026-04 – Present

Indonesia (Remote)

  • Migrated a production AWS workload from App Runner to ECS Fargate — ALB host-header routing for 7 backend services, RDS PostgreSQL, and full CI/CD repointing with zero data loss.
  • Provisioned and hardened AWS resources via CLI/IaC: IAM least-privilege roles, Secrets Manager, NAT instance, VPC, and S3 with Block Public Access, SSE encryption, and versioning.
  • Deployed self-hosted S3-compatible object storage (MinIO) with TLS and quota management, achieving full dev–prod parity through a unified configuration contract.
  • Maintained GitHub Actions pipelines for multi-target deployment and audited live cloud resources to produce per-resource cost estimates.
AWS ECS Fargate Terraform/IaC MinIO Docker Nginx GitHub Actions PostgreSQL

Backend Engineer

Lintas Media Danawa (Project: Lintasarta — Cloudeka)

2022-06 – 2026-06

Indonesia (Remote)

  • Developed and maintained core cloud products — CDN, Dekarock (container orchestration on OpenShift), and Docker Registry.
  • Designed and implemented a complex RBAC system securing multi-tenant access across cloud infrastructure.
  • Managed and optimized NFS integration for persistent storage in a cloud environment.
  • Refactored critical modules and enforced Clean Code standards, measurably reducing technical debt.
Go OpenShift Docker PostgreSQL RBAC NFS CDN Microservices

Backend Engineer (Founding Member)

Xetia.io

2021-11 – 2022-10

Japan market (Remote)

  • Engineered the delivery service for the “Hararu” app — nearby-courier search and route optimization via Google Maps API.
  • Led migration of chat services from Python to Go, eliminating performance bottlenecks and improving memory efficiency.
  • Built and operated event-driven microservices for asynchronous, resilient inter-service communication.
  • Worked directly with the CTO and CEO to translate business goals into technical design.
Go Python Event-Driven Microservices Google Maps API

Backend Engineer & DevOps

Foxlogger GPS Tracker

2021-06 – 2022-03

Indonesia

  • Designed an internal e-commerce and inventory system handling distribution of thousands of IoT devices from warehouse to customer.
  • Built infrastructure automation from scratch with GitLab CI/CD to standardize deployments.
  • Managed on-site data center server configuration, including 24/7 monitoring and hardware troubleshooting for high availability.
Python GitLab CI/CD Linux IoT Data Center Ops

Full Stack Engineer

PT. Netzen Media Akses

2019-06 – 2020-03

Indonesia

  • Architected and built an internal accounting system from the ground up, reporting directly to the CEO.
  • Managed network device configuration and client internet infrastructure before moving into a core developer role.
Python Vue.js MySQL Networking

Junior Frontend Developer (Founding Member)

CV. Lumbung Inovasi

2018-02 – 2019-02

Mataram, Indonesia

  • Founding team of an IT consultancy serving local and regional government needs.
  • Built the frontend of a Village Information System with digital village mapping (Google Maps API) and introduced Vue.js for consuming REST APIs.
Vue.js JavaScript REST API Google Maps API

Key Projects

Deka CDN ↗

Cloudeka (Lintasarta)

Backend Engineer

Cloudeka's content delivery service — caches static content (images, text, video, page assets) on geographically distributed servers so it is served from the location nearest the visitor.

  • — Developed and maintained the CDN service as part of Cloudeka's core cloud product line.
  • — Built the provisioning and configuration flows exposed through the cloud portal.
  • — Worked on edge caching behaviour on top of Cloudeka storage for high-performance content distribution.
Go Varnish Caching PostgreSQL Multi-tenancy

Deka Registry ↗

Cloudeka (Lintasarta)

Backend Engineer

Cloudeka's container image registry service — private repositories scoped per project organization, with role-based access control for CI/CD pipelines.

  • — Developed and maintained the container registry service for container image distribution.
  • — Implemented role-based access control so repository access is scoped per project organization.
  • — Integrated registry lifecycle into the cloud portal alongside the container orchestration product.
Go Docker Registry RBAC PostgreSQL CI/CD

SiLacak

Ministry of Health

DevOps Engineer

National COVID-19 contact-tracing platform serving millions of daily users.

  • — Orchestrated a cluster of 6 PostgreSQL servers with PgPool for load balancing and connection pooling.
  • — Deployed 5 Java application servers behind HAProxy and Nginx as primary load balancers.
  • — Implemented process management and real-time alerting on memory and system health.
PostgreSQL PgPool HAProxy Nginx Linux

Museum Digital Indonesia

MuseumDigi

Founding Member & Fullstack Engineer

Cultural artifact digitalization platform, funded by a competitive national grant (Dana Indonesiana, Kemendikbudristek).

  • — Initiated the concept through a technical proposal that won the grant.
  • — Managed end-to-end 3D scanning of historical artifacts and web integration.
  • — Architected the entire system — frontend, backend, and DevOps — through to production launch.
Go Vue.js 3D / WebGL DevOps

Simanlog Polri

Indonesian National Police

Backend Developer

Nationwide logistics management system.

  • — Contributed to logistics monitoring features with a focus on data accuracy and system security.
Go PostgreSQL

Dekarock Cluster ↗

Cloudeka (Lintasarta)

Backend Engineer

Cloudeka's container orchestration product built on OpenShift — server clusters and the foundations for resource provisioning.

  • — Built provisioning flows on top of OpenShift.
  • — Integrated cluster lifecycle into the cloud console.
  • — Hardened multi-tenant access paths.
Go OpenShift Kubernetes PostgreSQL

Warehouse + E-commerce API

Foxlogger

Backend Engineer & DevOps

Internal distribution system for thousands of IoT devices.

  • — Designed inventory and order flows from warehouse to customer.
  • — Built the REST API and admin integrations.
Python PostgreSQL REST

Delivery & Chat Services

Xetia.io

Backend Engineer (Founding Member)

Courier search, route optimization, and real-time chat for the Japanese market.

  • — Implemented nearby-courier search and route optimization.
  • — Migrated chat services from Python to Go for stability and memory efficiency.
Go Python Google Maps API WebSocket

Open Source

Developer tooling I build and maintain in the open. See all projects ↗

flowmaid ↗

Mermaid-compatible diagram engine in pure std Rust: zero dependencies, sub-millisecond renders, 166 KB WebAssembly build. Published on crates.io, with a browser playground and a native desktop editor.

Rust WebAssembly

go-shell ↗

Tailored terminal workspace — file explorer, embedded terminal, git dashboard, and an AI agent in one Rust TUI.

Rust TUI

dbx ↗

Terminal database explorer with a DataGrip-like experience: browse schemas, run SQL, draw ERDs.

Rust CLI

go-map-validator ↗

Golang library for dynamic map-based validation of REST and gRPC payloads, with custom error messages. Production-ready and used across internal projects.

Go

flowrun ↗

Mermaid-driven HTTP flow runner — step through API flows defined as diagrams.

Rust

go-docs-generator ↗

Generates single-page documentation sites from YAML/OpenAPI specs, with live API testing and architecture diagrams.

Go

Technical Skills

Cloud & Infrastructure

AWS (ECS Fargate, ALB, RDS) IAM & Secrets Manager VPC, NAT, S3 Kubernetes / K3s OpenShift MinIO Nginx HAProxy Linux (2015–present)

DevOps & Automation

GitHub Actions GitLab CI Docker LXC Ansible AWX Infrastructure as Code APM & monitoring Varnish (CDN)

Programming Languages

Go Rust Python TypeScript / JavaScript

AI / LLM Engineering

LLM integration in production Structured & typed judgments Provider-agnostic architecture Payload bounding & timeouts Graceful degradation

Backend & Messaging

Microservices Event-Driven Architecture REST & gRPC RabbitMQ Gin GORM FastAPI / Flask Vue.js

Data & Storage

PostgreSQL PgPool clustering Elasticsearch NoSQL NFS Schema design & query optimization

Practice & Quality

Clean Architecture Test-Driven Development RBAC & multi-tenancy Architecture Decision Records Code review