Hello, I'm Heeho Lim.

DEVOPS &

PLATFORM ENGINEER

I design and build delivery systems that hold up in regulated and air-gapped environments.

I build delivery systems and platforms on Kubernetes, GitOps, observability, and security controls. The work spans CI/CD templating and standardization, air-gapped financial cloud DevOps toolsets, ITSM integration, and ArgoCD GitOps rollouts. More recently I have been extending that into agent-driven automation for repetitive operations.

4+
Years
DevOps & Platform Engineer
Backend / AI Engineer
22+
Projects
Projects Completed
7
Certs
Certifications
2
Companies
Companies
Check out my skills and my projects !

Experience

DevOps Engineer

InfoGrab · Seongnam · DevOps Team

2023.05 - Present

I help service teams focus on development by building Kubernetes, GitLab, Observability, and SSO-based DevOps toolsets, and by standardizing their CI/CD. In financial, regulated, and air-gapped environments, I have delivered Cloud Native transitions, SVN-to-Git migrations, and ITSM-integrated delivery flows.

Key Projects
[Shipping Company] AI Workflow Automation PoC — n8n Queue Mode, Observability, k6 Load Testing (Terraform, AWS, n8n, Queue Mode, Grafana Alloy, Prometheus, Loki, k6, MS Teams)
[Asset Management Firm] Workflow Automation PoC, Async PDF-to-PPT Pipeline (Docker Compose, Podman, Webhook, PDF, PPTX)
[Internet Bank] DevOps Toolset (GitLab, Observability, SSO), Parallel Migration of 5 Systems (GitLab, Prometheus, Loki, Grafana, Keycloak)
[S Payment] SCM Consolidation and CI/CD Standardization, Legacy to Docker Migration (GitLab, CI/CD Templates, Docker, Prometheus)
[Capital Market IT] Air-gapped Financial Cloud DevOps Toolset, ITSM Integration (GitLab, Kubernetes, Harbor, ITSM)
[H Capital] Air-gapped K8s + Cloud Native Toolset, Remote Debug Environment (Kubernetes, Harbor, RBAC, Remote Debug)
[Construction Company] Heterogeneous Environment (Java/C#, Linux/Windows) CI/CD Templates (GitLab, Java, C#, MSBuild, Gradle, Maven)
[Central Bank] ArgoCD GitOps System Implementation, Operations Team Training (NCP, NKS, ArgoCD, GitOps, Kubernetes)
Awards
Public-Private Partnership Competition Special Award · Ministry of Science and ICT

Researcher (Backend / AI Engineer)

SEO Inc. · Anyang · AI Research Lab

2022.02 - 2023.03

At a CCTV and video-surveillance company, I worked on backend APIs and trained in-house video-AI models. I built an IoT/RTU communication server in C#/.NET, and gathered training data through web crawling and a collection pipeline spanning 80+ CCTV streams — then fine-tuned YOLO models for industrial safety violation detection, while owning the collection and pose-extraction infrastructure on the gait side. I also set up the in-house GPU servers used for training, and monitored their resource usage with Grafana and Prometheus.

Key Projects
[Public Institution] AI Agricultural Water Management Solution (IoT/RTU Communication Server) (C#, .NET, MariaDB, Docker)
[R&D Projects] GPU-based Real-time Video Analysis Server (Python, YOLOv5/v7, OpenCV, GPU)
[Public Institution] Gait Dataset Collection Infrastructure and Review Tool (C#, WPF, YOLOv7, MMPose)

Bachelor of Engineering

Pukyong National University · Computer Engineering

2015 - 2022

Majored in Computer Engineering, building a strong foundation in software development. Acquired skills in Python, image processing, and deep learning through various projects during studies.

Key Projects
Contactless Kiosk using Tracking System (Python, MediaPipe, OpenCV)
Autonomous Security Smart CCTV using Deep Learning (Python, YOLOv3/v4, OpenCV)
Awards
Capstone Design Competition Grand Prize · Pukyong National University
Hanium ICT Mentoring Competition Bronze · Korea IT Industry Promotion Agency
ICT Mentoring Academic Conference Excellence Award · Korea Information Processing Society
Challenge Korea Encouragement Award · Ministry of Science and ICT

Most recent work appears first. Select a project to see details.

InfoGrab 2026.06 - 2026.07

Global Shipping AI Workflow Automation PoC

Global Shipping Company · Logistics & Shipping

n8nQueue ModeTerraformAWSEC2IAMSSM Parameter StoreRoute53DockerPostgreSQLRedisGrafanaPrometheusLokiGrafana AlloyMS TeamsHITLOCRk6MCP
Global Shipping AI Workflow Automation PoC
Highlights
  • Bootstrapped an n8n Community Edition Queue Mode greenfield architecture across five VMs — separated PostgreSQL and Redis queues, pinned image versions for reproducible deployment
  • Single-handedly built a Grafana Alloy remote_write observability stack — Grafana, Prometheus, Loki, and a Redis exporter to surface workflow execution and queue state
  • MSDS document-verification automation — ran a hybrid prompt PoC cross-checking general OCR against an LLM, and operated the live workflow deployment
  • Ran two rounds of k6 load testing single-handedly — round one showed the throughput ceiling came from a conservative concurrency setting rather than resources; round two found memory was consumed by a separate task runner rather than the worker, relocating the guardrail, and scaled concurrency to 120 to derive a recommended setting
  • Wired up the MS Teams AI chatbot and its human-in-the-loop approval gate — validated MCP integration and notification delivery
  • Reproduced the same stack on an internal AWS account with Terraform, separate from the PoC environment — EC2, instance IAM role, SSM Parameter Store, and Route53 declared as code, giving the team a standing workspace to build and verify workflows outside the closed network

Certifications

Technical certifications I hold.

National (Korea)

Engineer Information Processing
2021 National
Engineer Information Processing
Network Administrator Level 2
2021 National
Network Administrator Level 2
Linux Master Level 2
2021 National
Linux Master Level 2

Click a skill to see related contents.

Platform & FinOps

Cloud Native Stack

Networking & Security

DevSecOps

Observability

AI & MLOps

Productivity & Automation

Development