About me

Senior DevOps Engineer · Jakarta

• Led AI-native engineering adoption in the DevOps team: an agent harness (context, guardrails, human review) for coding agents across GitOps and Terraform repositories, cutting the context needed to start a session from 50k to under 10k tokens.
• Made AI agents safe to use in a regulated environment with pre-edit guardrails, reusable agent skills and MCP servers for day-to-day infrastructure operations.
• Redesigned cloud network connectivity to remove hops and points of failure in front of the core trading API gateway.
• Planned and ran an identity provider migration with a blue-green cutover and rollback plan; no errors on the infrastructure side.
• Built zero-trust access to internal infrastructure: single sign-on, MFA, mesh VPN and privileged access management.
• Moved PostgreSQL from VMs to Kubernetes with a database operator: point-in-time recovery, connection pooling and metrics.
• Ran production application migrations as canary releases with no significant downtime.
• Manage hundreds of virtual machines with Terraform.

Independent Contractor · Remote

• Wrote expert-level infrastructure tasks used to evaluate frontier AI models, with automated testing and local lab environments.

DevOps Engineer · Jakarta

• Modernised the API infrastructure on a cloud-native API gateway (Kong) with central management, and hardened it with a WAF together with the security team.
• Replaced the legacy tracing and logging stack with Grafana Tempo and Loki, cutting log infrastructure cost by 60% and shortening incident resolution.
• Moved application monitoring to OpenTelemetry with a standard library for Java and Go services, tracing requests from the gateway down to database queries.
• Introduced GitOps with Argo CD across environments and clusters, cutting deployment time by 70%.
• Reduced total cloud cost by 40% with Spot instances, bin packing and cost labelling.
• Upgraded PostgreSQL from 10 to 16 with logical replication to keep downtime low.
• Integrated Vault with Kubernetes and Argo CD for secrets, with role-based access shared with developers.

Infrastructure Engineer · Jakarta

• Built custom metrics that show cloud cost per team on the existing monitoring platform.
• Audited the cloud infrastructure against the CIS framework with the audit team.
• Designed the infrastructure and network to move a SaaS workload serving millions of requests a day onto the internal platform, lowering monthly cloud cost.

Research Intern · Remote

• Designed a tool that schedules ML workloads on limited GPU memory so several researchers can share one GPU (source).

B.Comp, Informatics Engineering · Malang

Thesis: a distributed lab on multi-cluster Kubernetes.

Speaker — the sidecar pattern in distributed systems