Platform
Vinsium
Zero-trust easy button for secure networks across cloud, office, and home.
Problem class
Unified identity and access across distributed environments.
Explore VinsiumSteven Foerster
I build security-critical systems where failure is expensive.
I build security infrastructure primitives, product experiments, and research-backed tooling for teams who need resilient systems and trustworthy operational signal.
Products, Tools, and Experiments
Built systems, not services
A personal technical lab focused on scalable primitives, repeatable automation, and security research in the open.
Security Lab
Client-side crypto tooling
Zero-knowledge patterns, PQC demos, and browser-only encryption.
Problem class
Primitives for protecting data without server-side secrets.
Try the labWriting
Architecture and systems notes
Research-backed essays on cryptography, systems design, and failures.
Problem class
Clarity for builders navigating high-stakes systems.
Read the writingOpen Source
Experiments in public
Prototypes, primitives, and research-driven tooling on GitLab.
Problem class
Composable building blocks for secure infrastructure.
Explore GitLabFocus areas
- Security infrastructure primitives and automation.
- High-signal telemetry pipelines and system truth.
- Research-backed experimentation in applied crypto.
Builder mindset
- Ship reliable systems before they become liabilities.
- Prefer automation and primitives over paperwork.
- Measure truth with telemetry, not opinions.
Current obsessions
- Client-side encryption patterns and UX.
- Post-quantum primitives and migration thinking.
- Composable security infrastructure products.
Proof / Outcomes
Automation impact
Weeks → minutes
Manual work replaced by code
Isolated environments
50+
Secure multi-tenant builds
Telemetry pipelines
200k+ events/day
High-volume signal processing
Featured product
Vinsium
Vinsium is the zero-trust easy button for building secure networks across cloud, office, and home. It keeps identity and access coherent while letting you add modules over time.
Explore productsFocus areas
- Automation-first primitives
- Operational signal and drift detection
- System truth and integrity checks
Featured writing
All postsFeb 5, 2025
The hidden cost of 'just one more exception'
Exceptions feel harmless in the moment. Over time they become the slow leak that drains security programs.
Read →Jan 22, 2025
Productizing Infrastructure: what surprised me most
Turning infrastructure into a product is less about technology and more about clarity, ownership, and trust.
Read →Jan 15, 2025
Security Architecture vs Security Operations: the gap that breaks teams
Security architecture defines the promises; security operations keeps them. When those two drift, the organization pays the bill.
Read →Reach out if...
I build systems that stay secure under real-world pressure.
- You're building an infra-heavy product and security/reliability is a blocker.
- You want a hands-on expert who can jump into code and architecture (not just decks).
- You're untangling auth, networking, secrets, or multi-tenant boundaries.
- You're scaling and want to avoid expensive architectural mistakes.
- You need automation to kill toil and reduce drift.
A few sentences of context goes a long way - see the checklist on the contact page.