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patrickswedish/README.md

Patrick Ribbsaeter

Systems Engineer · Founder · Entrepreneur

Systems. Intelligence. Product. Business.

Building across distributed systems, AI infrastructure, compilers, low-latency software, agentic automation, and production products — backed by hands-on experience building businesses across technology, computer retail, fashion, e-commerce, websites, media, marketing, branding, sales, and digital execution.

AI-accelerated execution. Human-directed judgment.

Patrick Ribbsaeter    Ribbsaeter Systems    LinkedIn

Operating profile

A cross-disciplinary builder operating at the intersection of systems engineering, AI, product, and business.

Strongest at entering unfamiliar systems quickly, isolating the real failure mode, identifying the execution path and architectural invariant, directing agents and automation, validating edge cases, and shipping minimal durable corrections with deterministic regression coverage.

The commercial background matters as much as the technical one. Experience across offline and online businesses, retail, fashion, e-commerce, media, marketing, branding, sales, websites, and technology provides the context to connect architecture to customers, positioning, distribution, monetization, and execution.

AI is used as an engineering and business multiplier — accelerating research, implementation, validation, orchestration, and delivery while keeping problem selection, architecture, tradeoffs, review interpretation, and final decisions human-directed.


What I build

Systems engineering

Distributed systems, backend architecture, concurrency, memory ownership, low-latency runtimes, compiler/runtime behavior, performance, reliability, and production debugging.

DISTRIBUTED SYSTEMS RUNTIMES COMPILERS PERFORMANCE RELIABILITY

Agentic systems

Production AI agents, tool-using workflows, orchestration, MCP integrations, model/API integration, human-in-the-loop execution, evaluation, retrieval, and automation.

AGENTS MCP ORCHESTRATION AUTOMATION TOOL USE

Product engineering

From architecture and APIs to SaaS products, internal platforms, deployment, observability, analytics, billing, and operational workflows.

PRODUCT SYSTEMS APIs SAAS CLOUD DEPLOYMENT

Business building

Founder-led product strategy, business development, sales, positioning, branding, marketing, digital commerce, and go-to-market execution — connecting technical capability to real commercial outcomes.

FOUNDER PRODUCT GTM SALES BRAND BUSINESS


Selected upstream engineering

Scoped contributions built around existing architecture, explicit invariants, regression coverage, and repository-native conventions.

Project Engineering focus Status
Apache DataFusion Execution-layer schema conformance across in-memory execution and aggregation, including recursive nested Arrow Struct/List/Union adaptation Merged · PR #24394
Meta Velox TopNRowNumber ordering correctness across in-memory and spilled execution paths Merged · PR #18529
LLVM X86 lowering for non-power-of-two vector integer division while preserving full-lane vectorization Merged · PR #215076
Microsoft Agent Governance Toolkit Fail-closed approval-chain correctness for zero-required-stage configurations Merged · PR #3448
Microsoft TypeSpec Playground state synchronization; prevented stale Monaco callbacks from overwriting newly loaded sample configuration Merged · PR #11660
Redpanda RPC transport memory ownership so backpressure follows queued/send-buffer lifetime rather than timed-out response futures Open · PR #31594
Supabase Supavisor PostgreSQL cancellation synchronization across backend reuse Open · PR #1149
Microsoft Pyright Inherited asymmetric descriptor detection across effective __get__ / __set__ MRO behavior Open · PR #11605
Vercel Next.js Segment-cache navigation failure recovery with full-page fallback while preserving requested URL and navigation intent Open · PR #97815

Additional upstream work spans Meta Pyrefly, iCalendar, Vercel AI SDK, Claude Agent SDK ecosystems, Docker, JAX, Cloudflare Workers, Solana Web3.js, and other production-grade systems.

Open-source contributions are independent upstream engineering work and do not imply employment, partnership, endorsement, or client relationships with the projects or organizations listed above.


Engineering method

Symptom
  → execution behavior
  → architectural invariant
  → root cause
  → minimal durable correction
  → deterministic validation

The objective is not maximum code output. It is the smallest correct change that fits the system.


Commercial operating model

Technical depth is paired with founder-level commercial context: understanding not only how a system works, but what should be built, why it matters, how it reaches users, how it creates value, and how to execute without unnecessary complexity.

Open to selective projects, founder collaborations, brands, and ambitious companies with real budgets, clear decision-making, and urgency to execute — particularly where the problem is difficult, the ambition is high, and there is no artificial ceiling on scope.


Less talking. More building.

Website · Ribbsaeter Systems · LinkedIn

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