You built it. I'll help you understand it.
Security Audits, Training, Consultations & Development
See My Track RecordHow I Help
Security Audits & Code Review
Your AI-generated code has problems you can't see. Hardcoded secrets, missing auth, unthrottled API calls, prompt injection risks. I'll find what's wrong and show you how to fix it.
- Security Scan$295
- Comprehensive Security Audit$750
- PR Review$95
Returning client? Ask about Context Equity pricing.
Training & Workshops
Structured workshops for teams building with AI and small businesses navigating the AI landscape. Practical, hands-on, built from real experience.
- AI for Small Business$200
- Team Workshop$750
Consultations
Expert time for triage, second opinions, or focused technical conversations. Whether you need 20 minutes or two hours, book what fits.
Deeper Engagements
Senior engineering for teams that need real depth. Architecture review, system design, ongoing technical partnership — scoped and priced through direct conversation.
- Architecture Consultation$350/hr
- Project Engagementcustom
Is Ontologi Right for You?
Ontologi works with founders, small teams, and businesses who need senior engineering judgment — whether that's a one-time audit or an ongoing technical partnership. Here's how to tell if it's a good fit.
Ontologi may be right for you if…
You built with AI and need someone to check the work. You used Cursor, Copilot, Claude Code, or another AI coding tool to build your product. It's running, maybe even making money — but no senior engineer has ever reviewed what shipped. You're not sure what you don't know, and that's keeping you up at night.
You've had a security scare, or you're worried one is coming. Something broke. Someone found a vulnerability. Or you just read a headline about AI-generated code getting exploited and realized nobody's ever looked at yours. You don't have a security team and you need an expert who can tell you exactly what's wrong and how to fix it.
Your codebase has outgrown your understanding of it. The project started small — a weekend build, a prototype, a proof of concept. Now it's thousands of lines of code that multiple AI tools touched, and you can't confidently explain what half of it does. You need someone who can untangle it, document it, and give you a path forward.
You want to use AI tools but keep getting unreliable results. You know AI-assisted development is powerful, but your experience has been inconsistent. Sometimes it works, sometimes it generates garbage, and you can't tell why. You want structured workflows that make the process deterministic and auditable — not just "prompt and pray."
You're a founder or technical leader who needs senior depth on call. You're making architecture decisions, scaling a product, or building a team, and you need a principal-level engineer who's done it before at companies like Twilio and Weights & Biases. Not a staffing agency. Not a junior contractor. Someone who can own hard problems and ship.
You need a longer-term engineering partner, not just advice. Your team has a gap — platform architecture, API design, security, observability, reliability — and you need someone who can embed, build, and lead. Weeks, months, or ongoing. Ontologi takes longer-term engagements for teams that need real depth.
Context Equity Pricing
The biggest cost in a code review is learning a new codebase. When I've already reviewed your code, I know the architecture, the conventions, and where the risks live. That familiarity saves real time — and the savings get passed to you.
After your first paid review or audit, subsequent engagements on the same repository are billed at a reduced rate. It's not a loyalty program — it's a reflection of accumulated knowledge. Like a staff engineer who's worked the same system for years, I can review changes faster when I already understand what I'm looking at.
Context Equity is earned per-repository and stays active for six months after your last engagement. If your codebase changes substantially or the window lapses, the full rate applies — because stale familiarity can be worse than none.
Probably not the right fit if…
You need a mobile app or consumer frontend built from scratch. Ontologi's expertise is backend, platform, infrastructure, and security. If you need a React Native app designed and shipped, I can recommend people who do that well.
You need a marketing website or graphic design. I'm an engineer, not a designer. If your primary need is branding, visual design, or marketing collateral, that's a different shop.
Your project requires a large dedicated team. Ontologi is a small, senior consultancy — not an outsourcing firm. If you need ten developers for six months, I'm not set up for that. If you need one or two senior engineers who are worth ten, let's talk.
Who I Am
I'm Madeleine Muscari—AI/Platform Engineer & Technical Lead with 20 years across academia and the tech industry. I've seen how tech treats small businesses: oversold, underdelivered, ghosted. I left to do honest work at fair rates.
Experience
- Foam · Founding Engineer · 2025 Authentication, authorization, observability, and database architecture for an agentic code repair product.
- DeepKeel · Founding Engineer · 2024 LLM-based agent for cloud SaaS security. Designed a code inspection framework for validation and audit of LLM-generated code.
- Material Security · Senior Staff Software Engineer · 2023–2024 Led the Platform team. Built observability for a new product launch. Established a finops team that cut cloud spend 30% in three months.
- Weights & Biases · Staff Software Engineer · 2022–2023 Operated the public GraphQL API and backend storage. Built task scheduling for packaged deployments.
- Twilio · Principal Software Engineer / Technical Lead · 2015–2022 Responsible for the REST API gateway at 99.999% uptime. Designed and implemented global API ingress architecture. Led design of the next-generation API gateway. Designed a write-path queueing system achieving 99.999% success rate. Data processing systems for GDPR & HIPAA compliance.
- Gracenote · Senior Software Engineer · 2015 Data warehousing and analytics system for media metadata using Apache Spark.
- LiveNation Entertainment · Senior Software Engineer · 2014–2015 Social graph-based concert recommendation system using Akka, Play Framework, and Apache Cassandra.
- nRelate · Algorithm Developer · 2012–2014 Data compression system reducing MongoDB write operations by 98%. Recommendation algorithm leveraging clickstream clustering that doubled clickthrough rates for ask.com.
- Rutgers University · Graduate Assistant · 2009–2012 Taught database systems. Conducted research at DiscoLab and under advisement from Tina Eliassi-Rad.
- AT&T Services · Associate IT Analyst · 2007–2009 Enhanced interactivity in cloud hosting ordering and provisioning systems via AJAX and SOAP.
Patents
- US11601519B2: Edge Communication Locations Global routing of API requests to reduce latency and increase availability across multiple regions.
- US20220405119A1: API Request Throttling Rate and concurrency limits on API requests in a multi-tenant environment.
Education & Research
- Rutgers University, Graduate Studies · 2009–2012 Distributed computing and machine learning over social graphs (DiscoLab). Research in network role discovery and social network analysis.
- Rutgers University, School of Engineering · 2003–2007 · B.E. Electrical & Computer Engineering, Computer Science. Cum Laude, divisional honors in CS.
Python, Java, Scala, Golang. AWS, GCP, Azure. Kubernetes, Terraform, Docker. MySQL, PostgreSQL, MongoDB, Cassandra. DSPy, PyTorch, OpenAPI, GraphQL.
Heritage
The Ontologi archive spans three generations of American visual art, design and invention, rooted in an Italian lineage tracing its roots through martyrs of the Neapolitan Revolution of 1799 and the Registro delle Piazze Chiuse del Regno di Napoli, to 1398, when the family was entered into the Order of Malta.
The works of Alfred F. Muscari and Matthew Muscari form the source material for Madeleine Muscari's neural sculpture practice, in which family artworks are processed through variational autoencoders, diffusion models, and NeRFs to be rendered as 3D-printed forms—a computational continuation of a multigenerational conversation between craft, technology, and image-making.
Alfred F. Muscari (1903–1993)
Industrial designer, painter. Alfred spent his career as an Art Director at AT&T, where he co-designed the iconic American telephone booth (US Design Patent 197,963, 1964), created the illuminated dial for the Princess phone, and contributed to the AT&T Pavilion at the 1964 New York World's Fair. He was a member of the Salmagundi Club, painting landscapes in oil and watercolor—lighthouses, winter streams, the eastern seaboard. He also designed a Tudor Revival home in Teaneck, New Jersey, which became an architectural model for the surrounding neighborhood. He was a Life Member of the Telephone Pioneers of America.
Matthew Muscari (1946–2019)
Printmaker, photographer, educator. Matthew earned his BFA from the New York Institute of Technology (1970) and his MFA from Pratt Institute (1973), specializing in intaglio, traditional lithography on stone and metal plates, and silkscreen. He was a resident of the Westbeth Artists Community in Manhattan and part of the Mudd Club scene in late-1970s and early-1980s New York. His prints were exhibited at the Brooklyn Museum, shown in multiple solo exhibitions at Ward-Nasse Gallery, and purchased by the United States Information Agency for international exhibition. He taught art across New Jersey for over two decades—in Paterson Public Schools, the Montclair State University Gifted and Talented Program, and the Teaneck Board of Education—working in printmaking, painting, drawing, photography, cartooning, and Chinese brush painting.
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