Production-first delivery
Built and maintained production web, mobile, backend, reporting, and operational systems used in enterprise and university environments.
Fullstack Software Engineer
Sarikhin builds production-ready web, mobile, backend, and SaaS systems.
I work with Go, Flutter, React, Nuxt, PostgreSQL, Redis, Docker, and Linux infrastructure to build reliable software for real business operations.
3+ years
Software engineering experience
Web + Mobile
Production application development
Go + Flutter
Backend and mobile specialization
SaaS + OSS
Products and open-source tools
About
Product-oriented engineer with software, infrastructure, and domain experience.
I build systems end-to-end: backend APIs, mobile apps, web dashboards, database workflows, deployment, reporting, and production maintenance. My previous QA/QC, pharmacy, validation, and CSV background helps me understand regulated and operational domains.
Why Teams Trust Me
Production experience, fullstack ownership, and operational understanding.
No placeholder praise here. These are the strengths reflected consistently across the systems I build and maintain.
End-to-end ownership
Comfortable moving across backend APIs, Flutter apps, React dashboards, databases, deployment, monitoring, and production maintenance.
Operational domain understanding
Experience in healthcare, HR, quality workflows, document management, and operational systems where reliability and process clarity matter.
Featured Projects
Production systems, SaaS initiatives, and open-source work.
A tighter editorial selection of projects that represent real delivery, product thinking, and engineering depth.
Spotlight ProductionEnterprise System
IRTS ONE
Enterprise operation platform for tire retreading workflows, including mobile app, web app, admin monitoring, reporting, and migration from legacy ITMS.
Role
Fullstack Developer
Key Impact
Modernized legacy ITMS workflows into a newer platform.
FlutterReactGoNode.jsPostgreSQLRedis
SaaS / Healthcare / HR
obat.in
Designed SaaS modules for pharmacy POS, inventory, procurement, tenant/outlet management, HR/organization management, and healthcare workflows.
GoReactPostgreSQLgRgRPC
View project → SaaS / Fleet Tracking
Vetracka
Designed multi-tenant fleet tracking architecture.
FlutterGo FiberPostgreSQLRedis
View project → Open Source / CLI
ComposeGuard
Created CLI-first developer tool for Docker Compose validation.
GoDocker ComposeCLCLIGitHub Actions
View project → Experience
Engineering experience across enterprise, university, and product systems.
Fullstack Developer
PT. Indo Retreading and Tire Service
May 2023 - Present
Developing and modernizing enterprise web, mobile, backend, and reporting systems for tire retreading operations.
Fullstack Developer
Pelita Bangsa University
Dec 2022 - Present
Building and maintaining web applications for document management, quality management, and digital signature workflows.
Fullstack / Backend Developer
Agung Sedayu Group
Jan 2022 - May 2023
Contributed to mobile and backend development for enterprise property and city application systems.
Tech Stack
Tools I use to build and maintain production-ready systems.
Backend
GoGinFiberNode.jsExpress.jsDjango REST FrameworkgRgRPCRAREST API
Frontend
React.jsViteTypeScriptNuxtVue.jsTailwind CSSZZustand
Mobile
FlutterDartFirebaseAndroidGoogle MapsBSBackground Service
Database & Messaging
PostgreSQLMySQLRedisRabbitMQSRSQL ReportingMMigration
Infrastructure
DockerDocker ComposeNginxLinux ServerSSSLGitHub ActionsAwAWSGCGCP
Domain, Observability & Security
HSHealthcare SaaSPPPharmacy POSH&HR & Organization ManagementMTMulti-tenant SystemGrafanaLoLokiPrometheusALAudit LogBBackupSDSecure Deployment
Now
Current focus, active work, and the direction I am building toward.
I added a lightweight now page so the portfolio feels alive, not frozen. It captures what I am building, learning, and open to at this moment.