Jos Dijkstra

Summary

Software Engineer and Architect with 15+ years of experience leading backend, distributed systems, and cloud infrastructure projects. Proficient in Golang, C++, C#, and cloud technologies (AWS, Kubernetes, Redis). Proven track record of delivering scalable solutions, improving system performance, mentoring teams, and driving technical excellence.

Skills

Languages: Golang, C, C++, C#, Python, JavaScript (NodeJS)

Cloud & Infrastructure: AWS, Azure, Docker, Kubernetes, Helm, Jenkins, CI/CD

Databases: PostgreSQL, Redis, Elasticache, Redshift, SQL Server

Tools: Git, Harness, Terraform, Prometheus, OpenAI/Anthropic APIs

Core Areas: Distributed Systems, Microservices, API Development, Scalability, Agentic AI, RAG, Cloud Cost Optimization, Observability, Mentorship

Professional Experience

Proofpoint, Inc — Sr. Staff Software Engineer, Technical Lead
August 2018 – Current

• Led conversion of batch-based AWS EMR pipeline (2.5TB/day) into a scalable streaming pipeine (35TB/day), cutting AWS costs by 50%.
• Architected global, multi-region data pipelines with Golang, Redis, Docker, and Kubernetes.
• Built scalable APIs in Golang and NodeJS for analytics delivery.
• Invented patent-pending algorithm to detect phishing via domain lookalikes.
• Championed ML/AI internal group; led tool evaluations, presentations, integrations.
• Recipient of Outstanding Technical Achievement Award (2020).
• Mentored interns and junior engineers, promoting code quality and growth.

Panopto, Inc — Senior Software Engineer
March 2018 – August 2018

• Optimized LINQ-generated SQL for better performance and scalability.

Webroot, Inc — Senior Software Engineer
March 2016 – March 2018

• Developed C/C++ endpoint security software at kernel/user levels.
• Built fully automated test framework for 30+ OS versions, running 24/7/365.

Microsoft / Uber Technologies — Senior Software Engineer
May 2008 – October 2015

• Engineered distributed systems for Bing Maps and Uber (80k cores, 320PB storage).
• Designed middle-tier handling 1B requests/day, reducing SQL failures by 99%.

Earlier Career — Aztek Networks, Ericsson Wireless, EuroLabs

• Focused on telecom, protocol development, and embedded systems.

Side Project

PCRAssist.com (Founder/Engineer)

Built SaaS app to help EMTs/paramedics create PCRs. Developed React frontend, Golang backend, PostgreSQL DB; integrated OpenAI/Anthropic APIs for AI-driven narrative generation.

Interests

Exploring ML, AI, RAG, agentic AI architectures. Passionate about SaaS innovation in healthcare and cybersecurity.

Education

Master’s in Mathematics — University of Groningen, The Netherlands

Thesis: Numerical Simulation of Fluid Flow in 3D (CFD)