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Seungmin Lee
@seungmin_cloud
AWS Cloud Engineer, Production SRE
Corée du Sud
Coréen, Anglais
À propos de moi
AWS Cloud Engineer and production SRE. 7 years in software, now running AWS for a large SaaS platform (EKS, ECS, Terraform, monitoring, incident response).
WHAT I DO
- Deploy AI-built apps (Lovable, Bolt, Cursor) to AWS, production-ready
- Audit your AWS and Datadog bill and show where money leaks
- Check your app for exposed keys, open databases and login gaps
- Set up or fix ECS, EKS, RDS, CloudFront, SSL and DNS
WHAT YOU GET
Working infrastructure, a clear report and a handover doc.
HOW TO START
Message me with your setup. I'll tell you what fits before you order.
Compétences
Seungmin Lee
hors ligne •
Voir mes services
Résolution des problèmes et améliorations
I will audit and secure your vibe coded app or website before launch
Gestion du cloud
I will do AWS cost optimization and reduce your AWS and datadog bill
Portfolio
Expérience professionnelle
Site Reliability Engineer
Imweb • Temps plein
Dec 2025 - Present • 11 mos
Run production AWS infrastructure for a large SaaS platform: EKS, ECS, Terraform, CI/CD, monitoring and incident response.
Site Reliability Engineer
Kakao Style
Dec 2023 - Aug 2025 • 1 yr 8 mos
• Cut annual compute spend by ₩1B through resource usage analysis and infrastructure optimization: right-sizing requests and limits from DataDog metrics and HPA scaling history, automating off-peak and promotion-window scaling, migrating the fleet to AWS Graviton (ARM), and adopting Karpenter Consolidation • Introduced Istio service mesh and cut annual network cost by ₩200M: migrating all 120 services with a purpose-built Python automation tool, moving ingress from ALB to NLB, enforcing mTLS on internal traffic, minimizing cross-AZ traffic with locality routing, and bringing routing control inside the cluster • Led capacity planning for Black Friday 2024 with zero downtime: pre-sizing pod counts for 120 services from historical metrics and setting hourly scaling policies, supporting a record ₩140B in GMV • Operated Prometheus/DataDog observability and CI/CD pipelines, and served on the on-call rotation
Back End Developer
Kasa • Temps plein
Dec 2021 - Nov 2023 • 1 yr 11 mos
• Proposed and integrated Singpass MyData, Singapore's national digital identity system, to replace manual KYC • Designed and implemented JWT-based API authentication and authorization, establishing the company-wide permission model • Designed and built the digital securities issuance and trading module: mplementing the subscription–settlement–issuance flow, controlling concurrent transactions with Django ORM locks, and building real-time three-way reconciliation across the internal DB, blockchain, and custodian bank • Codified AWS infrastructure with Terraform and stood up Prometheus/Grafana monitoring and layered AWS WAF/Shield security to satisfy MAS TRM technical requirements • Served as the English-language technical bridge between the Singapore business team and the Korean engineering team
1 Avis
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ashleighwojo
États-Unis
Seungmin did exactly as I had asked and even more. She is very knowledgeable about her field and knows exactly how to assist her customers. I would highly recommend her for any internet safety business as she is clearly an expert in her field.
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