Josef Doornink
Site Reliability Engineer | AI Infrastructure & MLOps
Site Reliability Engineer with 12+ years specializing in distributed systems, cloud infrastructure, and large-scale Kubernetes environments (CKS/CKA certified). Focused on building platform tooling that drives engineering productivity and eliminates toil. Currently bridging SRE and AI by scaling MLOps pipelines and model serving infrastructure. Deep expertise in observability, performance tuning, and infrastructure automation.
Certifications & Courses
Featured Architecture & Tooling
K8gentS
An autonomous Root Cause Analysis (RCA) agent designed specifically for Kubernetes clusters. Leverages LLM logic and system telemetry to automatically diagnose pod failures, resource exhaustion, and network bottlenecks, drastically reducing operational MTTR and increasing visibility.
OmniSight-Core
A production-grade video search engine capable of understanding semantic queries (e.g., "Find a red truck at night"). Demonstrates self-healing infrastructure that automatically detects model performance decay and triggers retraining.
Agentic SRE Pipeline & Portfolio
The source code driving this exact platform. A Next.js (React) infrastructure executing a Python/RAG Agent pipeline that strictly parses unstructured Job Descriptions and outputs statically generated, targeted frontend bundles dynamically.
Aggregated Skills
Professional Experience
REASON BENEFIT AI CORPORATION
🚀 Startup- Architect and maintain large-scale Azure Kubernetes Service (AKS) production environment for ML model training and serving, supporting distributed model inference at scale.
- Integrate with observability frameworks for model performance tracking, latency monitoring, and resource utilization across distributed training systems.
- Collaborate with research teams to translate experimental model architectures into production-ready systems with focus on reliability and scalability.
- Led Distributed Training Pipeline Optimization by profiling RL (Reinforcement Learning) pipeline bottlenecks by introducing automated pipeline scripts and validations to improve training cycle time.
Trimble/Viewpoint
- Architected AKS production environments handling 10M+ requests/day across 30+ microservices at 99.9% uptime SLA.
- Built automation tooling in Python and Go eliminating 80+ hours/month of toil and accelerating deployment velocity 3x.
- Developed yaml-based ML pipeline orchestration tools, reducing manual overhead by 70%.
- Reduced P99 latency 45% and improved throughput 60% through systematic profiling of distributed systems.
- Developed Go CLI tooling (Cobra) adopted by 50+ engineers for streamlined infrastructure workflows.
- Implemented New Relic observability stack with distributed tracing, cutting MTTR by 50%.
- Led Kubernetes capacity planning and auto-scaling strategies supporting 200% traffic growth.
- Built CI/CD pipelines (GitHub Actions, Azure DevOps) with automated testing and rollback mechanisms.
- Managed 500+ cloud resources via Terraform IaC; implemented CKS security controls for SOC2 compliance.
Viewpoint
- Developed cloud-based SaaS applications using .NET and Angular, migrating on-premise software solutions to Azure cloud platform.
- Built RESTful APIs for multi-tenant applications serving thousands of users with focus on performance and scalability.
Onfulfillment
- Engineered multi-tenant e-commerce platform using Microsoft Stack (.NET, C#, SQL Server) integrated with third-party SaaS APIs.
- Led 'uplift' initiative migrating legacy codebase to modern greenfield platform, improving response times by 40% measured through New Relic APM.
Legacy Biomechanics Research Lab
- Lead test and development engineer for NIH-funded multimillion-dollar research project focused on bone fixation solutions.
- Managed successful implant creation, delivery, and test methodology producing multiple US FDA-approved implants.
Publications (Subset of 11)
M Bottlang, J Doornink, DC Fitzpatrick, SM Madey
M Bottlang, M Lesser, J Koerber, J Doornink, S Mueller, DC Fitzpatrick...
M Bottlang, J Doornink, TJ Lujan, DC Fitzpatrick, PV Marsh...
J Doornink, DC Fitzpatrick, SM Madey, M Bottlang
J Doornink, DC Fitzpatrick, S Boldhaus, SM Madey, M Bottlang