Hi, my name is
Gregorius Bima Kharisma Wicaksana
|
Building scalable systems that handle 100K+ users. 7+ years crafting enterprise-grade software specializing in Golang, .NET Core, and cloud-native architecture. Active open source contributor to projects like tscircuit, Gitea, and Gumroad.
Jakarta, Indonesia
About Me
A brief introduction about who I am and what I do
I'm a Technical Lead at PT. Indomarco Prismatama (Indomaret Group) with a passion for building scalable, maintainable systems. I architect backend services supporting 100K+ internal users and have contributed to 15+ open source projects including tscircuit, Gitea, Gumroad, and more.
I specialize in Golang (Fiber), .NET Core, Rust, and cloud-native architecture. Recently exploring Sui Move for smart contracts and StarkNet for Layer 2 scaling solutions.
I standardized Domain-Driven Design (DDD) and Hexagonal Architecture practices, spearheaded CI/CD automation cutting deployment time by 40%, and actively contribute to open source.
{
"name": "Gregorius Bima Kharisma Wicaksana",
"role": "Technical Lead",
"company": "PT. Indomarco Prismatama",
"location": "Jakarta, Indonesia",
"experience": "7+ years",
"focus": [
"Golang / Rust",
".NET Core",
"Sui Move / StarkNet",
"Open Source"
],
"available_for": "Remote Opportunities"
}Skills & Expertise
Technologies and tools I work with
Languages
Infrastructure
Databases
Architecture
Also experienced with
Featured Projects
Some of my recent work that I'm proud of
Other Projects
Sui DAO
Sui Move DAO governance system with voting, proposals, and treasury management.
Web Presensi
Frontend application for attendance management system built with SvelteKit and Tailwind CSS.
DEX Aggregator
DEX Price Aggregator API that fetches real-time prices from multiple decentralized exchanges.
Chain Indexer
Blockchain event indexer for ERC-20 and ERC-721 tokens. Indexes transfer events and holder balances.
Lexicon
Full-featured Blog/CMS with .NET 8 Clean Architecture backend and Next.js frontend.
Open Source Contributions
Contributing to the open source community and collaborating with developers worldwide
tscircuit
Create electronics with React and TypeScript. Design PCBs and schematics using JSX.
Contribution: Add knockout props, highlightColor support, .kicad_mod imports (Multiple PRs)
Gumroad
Sell digital products directly to your audience. E-commerce platform for creators.
Contribution: Migrate Edit Product page to Inertia, fix scroll issues (Multiple PRs)
Cortex Linux
The AI Layer for Linux. Agentic system administration and intelligent automation.
Contribution: AI-powered dependency conflict prediction, Interactive TUI Dashboard ($150 bounty)
Databuddy
Privacy-first analytics platform with focus on user experience and data privacy compliance.
Contribution: Implement feature flag folders for organization (PR #280)
Gitea
Self-hosted Git service written in Go. A painless, self-hosted Git service.
Contribution: Fix CODEOWNERS review request attribution (PR #36348)
StarkNet.go
Golang Library for StarkNet/Cairo. Build StarkNet applications with Go.
Contribution: Add EstimateFeeFlag type, specific return types for Block methods (PR #843)
Work Experience
My professional journey in software engineering
Technical Lead
PT. Indomarco Prismatama (Indomaret Group)
Leading a 20-member technical division across 4 specialized units: Business Process Recruitment, Time Management, IRK (Flutter mobile app), and Course Development.
- ▹ Architected Golang (Fiber) backend services supporting 100K+ internal users
- ▹ Built custom API Gateway using Laravel as Layer 1 security for external API access
- ▹ Spearheaded CI/CD automation using GitHub Actions and Jenkins, cutting deployment time by 40%
- ▹ Standardized Domain-Driven Design (DDD) and Hexagonal Architecture across teams
- ▹ Introduced AI-driven workflows, boosting team autonomy and development velocity
Technical Architect
PT. Indomarco Prismatama (Indomaret Group)
Designed and implemented high-availability systems and scalable infrastructure for enterprise applications.
- ▹ Led monolith-to-microservices migration using Docker and GCP
- ▹ Designed scalable API Gateway infrastructure
- ▹ Implemented Terraform-based IaC to standardize cloud provisioning
- ▹ Deployed internal apps via IIS and Nginx with hybrid cloud/on-premise setups
Full Stack Developer
PT. Indomarco Prismatama (Indomaret Group)
Built and maintained HR systems and internal applications using various tech stacks.
- ▹ Developed HR systems using .NET MVC, Laravel, and WCF
- ▹ Managed SQL Server and PostgreSQL databases for various modules
- ▹ Maintained version control and collaborated using TortoiseSVN and GitHub
Get In Touch
I'm currently open for freelance projects and consulting opportunities. Whether you have a question or just want to say hi, feel free to reach out!
Let's Work Together
Looking for a Technical Lead, Backend Architect, or Cloud Consultant? I'm available for interesting projects and collaborations.
Say Hello