Profile
Cloud-native infrastructure was my foundation. Site Reliability Engineering hardened my instincts. Today I build the next layer - agentic AI systems that make financial infrastructure intelligent, resilient, and self-aware. Across 11+ years I have engineered distributed systems where failure is not an option: payments that clear in milliseconds, near real-time fraud detection, and reliability designed from the ground up rather than bolted on. As Solution Architect at Bank Sinarmas I lead enterprise architecture for Digital Banking, Branch Banking, and Middleware Systems. Earlier, I hardened crypto-exchange infrastructure at Pintu and built payment, settlement, and mobile systems at DANA Indonesia. My work sits at the intersection of cloud architecture, SRE, and applied AI - Go microservices on Kubernetes (GKE/EKS), Temporal-orchestrated financial workflows, and high-throughput Kafka/Flink pipelines.
Technical Excellence
🧠 Applied AI & Agentic Systems - 2026 Focus
- Designing LLM-powered agents on the MCP protocol - a Fraud Detection Agent and an Ops Copilot targeting production banking
- Building RAG pipelines from scratch (chunker, embedder, vector store, retriever, generator) over a banking-domain knowledge base
- Integrating multi-provider LLMs (AWS Bedrock, DeepSeek) into IT-resilience and automation workflows
- Authoring the "GenAI in Practice" article series with companion open-source code
☁️ Cloud Architecture Achievements
- Designed and implemented high-availability systems achieving 99.99% uptime
- Optimized cloud resources to reduce infrastructure costs by 40%
- Built scalable architectures processing millions of daily transactions
- Deployed critical financial services with zero downtime
🛠️ Site Reliability Engineering Impact
- Implemented enterprise-wide monitoring using Prometheus and Grafana
- Automated incident response to reduce MTTR by 60%
- Enhanced deployment reliability by 85% through GitOps practices
- Developed disaster recovery protocols with RPO < 15 minutes
Recent Work Experience
Solution Architect Specialist · Dept. Head, Enterprise Architecture
2023 - Present- Designing robust, reliable technical solutions and reviewing application impact across the estate
- Defining and implementing IT-resilience strategies and database maturity assessments
- Producing C4 architecture diagrams and TOGAF-aligned governance artifacts
- Driving AI governance and applied GenAI initiatives (RAG pipelines, LLM agents) for banking use cases
- Conducting technical studies and Architecture Review Board evaluations
Senior Site Reliability Engineer
2022 - 2023- Operating Kubernetes (EKS) with Istio and Emissary gateway across core trading and finance services
- Building reliable CI/CD with GitHub Actions and ArgoCD, plus Terraform/Ansible automation
- Running zero-fault-tolerance Redpanda (Kafka) and Temporal workflow infrastructure
- Standing up Prometheus, Thanos, Loki, and Grafana for near real-time observability
Software Development Engineer Lead
2019 - 2022- Designing infrastructure on GKE with Istio service mesh and ELK/Prometheus observability
- Operating Kafka and Flink pipelines for distributed, high-throughput processing
- Building Python settlement services (PostgreSQL to CSV to SFTP) used across multiple products
- Adopting Tekton CI and ArgoCD with trunk-based GitOps across 4+ products
- Progressed from Senior Software Engineer (mobile, Kotlin/MVVM) to Lead for backend and, ultimately, DevOps/SRE
Certifications & Credentials
- CKA - Certified Kubernetes Administrator Linux Foundation
- Professional Cloud Architect Google Cloud
- TOGAF Enterprise Architecture Foundation The Open Group
- COBIT 2019 Foundation ISACA
- LLM Engineering: AI, LLMs & Agents Udemy
- AWS AI & ML Scholars 2026 + AI Practitioner Udacity
31 credentials in total - full list on Credly
Education
Politeknik Caltex Riau
Bachelor's degree, Information Technology (2009 - 2013)
Featured Writing
RAG Foundation Article Series
Why LLMs need retrieval in production, the five RAG components, and a from-scratch build for banking compliance
ClickHouse: A Deep Dive into Modern Real-Time Analytics Medium
ClickHouse vs MySQL for analytical queries
Implementing ABAC with Ory Keto Medium
Relationship tuples following the Google Zanzibar model
Kafka 101 and The 7 R's of Cloud Migration LinkedIn
Published on LinkedIn
Skills
🤖 AI & Agentic Systems
- Agentic AI Development (MCP)
- Large Language Models (LLM)
- Retrieval-Augmented Generation (RAG)
- Prompt Engineering
- Generative AI
- AI Governance
☁️ Cloud Infrastructure
- AWS Cloud Architecture and Services
- Google Cloud Platform (GCP)
- Infrastructure as Code (IaC)
- High Availability System Design
- Disaster Recovery Planning
🔄 DevOps & SRE
- Kubernetes Administration
- Docker Containerization
- CI/CD Pipeline Implementation
- Prometheus & Grafana Monitoring
- Jenkins Automation
- GitOps Practices
💻 Programming & Development
- Golang (Backend Development)
- Python
- Shell Scripting
- RESTful API Design
- Microservices Architecture
- Version Control (Git)
🔐 Security & Compliance
- Cloud Security Architecture
- Financial Services Compliance
- Encryption Implementation
- Security Best Practices
- Access Management
🏗️ System Design
- Distributed Systems
- Event Streaming (Kafka / Flink)
- Workflow Orchestration (Temporal.io)
- Database Design
- System Scalability
- Load Balancing & Caching
🧭 Leadership & Communication
- Enterprise Architecture (TOGAF)
- Technical Writing
- Team Mentorship
- Architecture Planning
- Cross-functional Collaboration
- Knowledge Sharing