Jeff Kloythanomsup, cloud and AI consultant
An American engineer in the Netherlands, with about 20 years of cloud, DevOps, and AI work and a habit of seeing systems whole.
I'm Jeff Kloythanomsup, an American living in the Netherlands. I studied sociology at San Francisco State University. It turned out to be good training for infrastructure, since both fields look at how parts depend on each other. I then built my career in the United States as a cloud and DevOps engineer. I architected AWS environments, automated infrastructure with Terraform, and ran Kubernetes and CI/CD at scale for clients from startups to the Fortune 500.
I've also been a founder. At ThriveUp Care I designed, built, and ran an AI-enabled marketplace end to end. That covered the web and mobile apps, the RAG-based matching, and the AWS infrastructure underneath, plus product, go-to-market, and fundraising. I used to think a system could be finished. After running one as a founder, I realised it's only ever stable enough to improve.
Net Ninjas brings both sides to EU teams: the engineer who ships the code and the founder who knows what it costs. I keep my range wide across cloud, delivery, and AI, because the expensive mistakes hide at the seams between them. I also treat the people as part of the system. A platform only works when the team who inherits it understands it and trusts it. Ideally they're a little proud of it, too.
Jeff Kloythanomsup
Founder & Lead Consultant
Career
The full detail is in my CV. View CV.
Founder & CEO, ThriveUp Care
2025 to 2026
- Built a two-sided support-services marketplace end to end: a Next.js and TypeScript web app with 200+ API endpoints and an Expo / React Native mobile app, shipping v1.0 through v1.37 across ~3,000 commits.
- Developed AI-powered matching with Claude and OpenAI-compatible APIs, using a RAG pipeline over vector embeddings.
- Provisioned dev, staging, and production AWS environments with Terraform (ECS, Lambda, AppSync), and ran product strategy, go-to-market, and pre-seed fundraising.
Senior Cloud Engineer, AWS consulting partner
2021 to 2026
- Raised client NPS from 8 to 10 on high-net-worth migration engagements, including moving high-performance computing workloads from on-premises to AWS.
- Cut deployment time from 4 months to 1 month by containerising a mobile education-management platform and building its CI/CD pipelines.
- Automated replication, versioning, and access hardening of 400+ S3 buckets for a Fortune 500 client's disaster recovery and data security.
Senior Delivery Engineer, Managed cloud provider
2020 to 2021
- Led modernisation of a major airline's fare-management application, cutting processing time 90% by moving a legacy Python codebase to AWS Glue jobs.
- Trained five client engineers on Jenkins CI/CD, containers, and EKS to speed up a Fortune 500 migration under the AWS Migration Acceleration Program.
Senior DevOps Engineer, Engineering agency
2019 to 2020
- Migrated mission-critical applications to AWS with Terraform and Terragrunt, eliminating a 1-hour backup downtime window.
- Co-built a Fortune 100 HR web product on Kubernetes that remains in production.
Earlier roles, Startups, travel tech, and cloud consulting
2016 to 2020
- Deployed 200+ microservices on Terraform-built EKS and architected multi-account AWS infrastructure for two mission-critical banking apps.
- Led a 10-member team managing 2,000+ production instances with 100% SLA compliance.
Skills
- Cloud & IaC
- AWS (EC2, ECS, EKS, Lambda, S3, Glue, AppSync, Aurora/RDS, Fargate), Terraform, CloudFormation
- Containers & CI/CD
- Docker, Kubernetes, GitHub Actions, GitLab CI, ArgoCD, Jenkins, CircleCI
- AI & data
- Claude API, OpenAI-compatible SDKs and APIs, RAG pipelines, vector embeddings, PostgreSQL, Redis
- Observability
- Prometheus, CloudWatch, Datadog, New Relic, ELK stack, Sentry, PostHog
- Languages
- Python, TypeScript/JavaScript, Bash, SQL; Next.js/React, React Native, Node.js
Education and certifications
Bachelor of Arts in Sociology, San Francisco State University
- Claude Certified Architect, Professional (Anthropic, 2026)
- Certified Kubernetes Administrator (CNCF, 2021)
- HashiCorp Certified: Terraform Associate (2020)
- AWS Certified Solutions Architect, Professional (2017)
- AWS Certified DevOps Engineer, Professional (2017)
- AWS Certified Developer, SysOps Administrator, and Solutions Architect, Associate (2016)
- Linux Foundation Certified SysAdmin (2015)
- CompTIA A+ (2014)
Let's talk.
A 30-minute call, no pitch. We look at your current setup, your stage, and the thing that's bothering you about it. I give a straight opinion on what to change, what to leave alone, and whether the problem is the one it looks like. What's the one thing in your stack you'd fix tomorrow?
Prefer email or phone? hello@netninjas.eu or +31 6 45984313