Senior SRE with 10+ years in enterprise infrastructure. I help growing teams fix infrastructure problems, build new products, and ship with confidence.
Code audits • MVP development • Fractional SRE • Production-grade systems
Free assessment, no obligation. See how I can help in 15 minutes.
Enterprise-grade expertise for growing teams
Code audits, debugging, cleanup
Something broken? Code from AI tools causing headaches? I’ll review your codebase, identify the critical issues, and give you a prioritized fix-it plan.
Starting at $1,500
Learn more →MVPs, internal tools, web apps
Have an idea? Need an internal tool? I build production-ready web apps with modern tech (Next.js, React, TypeScript, PostgreSQL). Secure, scalable, deployed.
Projects from $5,000
Learn more →Fractional SRE, security monitoring, automation
Need senior infrastructure expertise without the $200K salary? I work with your team part-time on reliability, security monitoring, deployments, and incident response.
$4,000-$10,000/month
Learn more →What sets me apart from agencies and freelancers
10+ years building and maintaining systems for Fortune 100 companies. Battle-tested expertise.
No project managers or middlemen. You work directly with the engineer doing the work.
Every deliverable is production-ready. Secure, tested, documented, and built to scale.
Clear pricing upfront. No surprise invoices, no scope creep billing, no hidden fees.
Results that speak for themselves
“We had a codebase full of AI-generated code that looked fine on the surface but was riddled with security holes and performance issues. Johnathen’s audit found 23 critical issues we had no idea existed. His remediation roadmap saved us months of debugging.”
“We needed an MVP built in 8 weeks for a demo to investors. Not only did Johnathen deliver on time, but the code was production-ready from day one. We went straight from demo to onboarding our first customers without rewriting a single line.”
“Our team was spending 30% of their time firefighting infrastructure issues. Since bringing Johnathen on as our fractional SRE, incident response time dropped by 60% and our engineers are back to building features.”
The same 25-point checklist I use in real client audits. Check your codebase against enterprise-grade standards.
Enterprise E2E Encrypted Messaging
React, Fastify, PostgreSQL, WebRTC, Docker
Privacy-First Budget Tracking
Electron, React, TypeScript, SQLite
Enterprise Infrastructure Automation
FastAPI, Temporal, Kubernetes, Vault
Senior Site Reliability Engineer with 10+ years of experience keeping enterprise infrastructure running. Reduced incident response times by 40%, achieved 99.9%+ uptime, and automated 85% of manual operations.
Now helping startups and growing teams build the same reliability practices—without the enterprise overhead.
Not sure where to start? I offer free assessments for teams with codebase challenges. Let’s talk about what you’re building and where I can help.
Claim Your Free AssessmentEverything you need to know about working together
Tell me about your challenges and let’s see how I can help
Book a 15-20 minute call to discuss your codebase challenges. Get immediate, actionable recommendations—no obligation.
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