Jos Dijkstra

Niwot, CO 303-916-5285 josdijkstra@gmail.com josdijkstra.com

Summary

AI First Software Engineer and Architect with 15+ years of experience leading backend, distributed systems, and cloud infrastructure projects. Proficient in Golang and cloud technologies (AWS, Kubernetes, Redis). Proven track record of delivering scalable solutions, improving system performance, mentoring teams, and driving technical excellence. Currently experimenting with everything AI related (agents, MCP, tools, spec-driven development).

Skills

Languages Golang, C, C++, C#, Python, JavaScript (NodeJS) Infrastructure AWS (EC2, Redshift, Athena, CloudWatch), Terraform, Azure, Docker, Kubernetes, Helm, Jenkins, CI/CD Databases PostgreSQL, Redis (NoSQL), Elasticache, Redshift, SQL Server Tools Git, Jenkins, Cloudbees, Harness, Terraform, Prometheus, OpenAI/Anthropic APIs Core Areas Distributed Systems, Microservices, API Development, Scalability, Agentic AI (LangGraph, OpenAI Agent SDK), RAG, Cloud Cost Optimization, Observability, Mentorship

Experience

Proofpoint, Inc
Senior Staff Software Engineer, Technical Lead — Aug 2018 – Present
  • Converted batch-based AWS EMR pipeline into a scalable streaming data processing pipeline, scaling traffic from 3 to 120 TB/day, reducing AWS costs by 50%
  • Architected and deployed globally distributed, multi-region data processing pipelines using Golang, Redis, Redshift, Postgres, Docker, Kubernetes, and AWS
  • Optimized ETL workflows and SQL query execution plans for Postgres and Redshift, improving throughput for large-scale data operations
  • Built scalable REST APIs with NodeJS and Golang to manage and deliver analytics data
  • Partnered with product and leadership teams to prototype new features and product lines
  • Patented algorithm (12218973) to detect domain lookalikes for phishing protection
  • Built & deployed Agentic AI processes for domain analysis and customer onboarding
  • ML-based logo detection to identify malicious websites impersonating legitimate brands
  • Championed internal ML/AI working group: presentations, tutorials, tool evaluations
  • Awarded Outstanding Technical Achievement Award (2020)
  • Mentored junior engineers, fostering a culture of code quality and technical growth
Panopto, Inc
Senior Software Engineer — Seattle, WA — Mar 2018 – Aug 2018
  • Optimized auto-generated SQL queries (LINQ) to enhance performance and scalability in video management software
Webroot, Inc
Senior Software Engineer — Broomfield, CO — Mar 2016 – Mar 2018
  • Architected and developed next-gen consumer security endpoint software using C/C++ at both kernel and user levels
  • Led development of automated testing framework covering 30+ OS versions, collaborated with multiple departments, resulting in a new department that manages this framework
Microsoft / Uber Technologies
Senior Software Engineer — Boulder, CO — May 2008 – Oct 2015
  • Architected and developed high-performance distributed systems supporting Bing Maps and Uber operations (80,000 cores, 320 PB of data storage)
  • Designed middle-tier service handling 1 billion requests/day, reducing SQL failures by 99%
  • Contributed to the architecture and design of multiple products
Earlier Career
Aztek Networks, Ericsson Wireless, Ericsson EuroLabs
  • Various software architecture and engineering roles focused on telecommunications, protocol development, and embedded systems

Side Projects

SaaS application assisting EMTs/Paramedics with creating Patient Care Reports (PCRs) and answering protocol questions using RAG. Built with NodeJS/React frontend, Golang backend, PostgreSQL database; integrated OpenAI and Anthropic APIs for intelligent narrative generation.

Dog rescue transport organizer built on Vite/React/Python.

Cover letter generator and resume analysis.

Interests

Exploring ML, AI, RAG, Agentic AI architectures, and scalable AI-integrated microservices. Passionate about emerging SaaS innovation in healthcare and cybersecurity.

Education

Master's Degree in Mathematics
University of Groningen, The Netherlands
Thesis: Numerical Simulation of Fluid Flow in 3D (Computational Fluid Dynamics)