Envision / Innovate / Develop / Deliver

Founded by Andras Fuchs—lead maintainer of Freerouting (206k+ monthly users), Toptal Certified specialist, and Microsoft .NET developer. We engineer high-performance distributed backends, EDA tools, custom hardware prototypes, and applied AI intelligence workbenches.

⭐ Freerouting Maintainer (206k+ Users)🏆 Toptal Certified (Top 3% Global)🛡️ Microsoft Certified .NET Developer🔬 Microsoft ML.NET Community Panel⚡ 15+ Years Systems Architecture
.NET & CloudHigh-Throughput Backends
EDA & IoTPCB Routing & Hardware
Applied AILLM & Agent Pipelines
Tech AdvisorySystems & Due Diligence
About Foxy Laboratories

Crafting digital solutions with vision and precision

We build uncompromising, high-impact software and hardware solutions backed by rigorous engineering principles, transparency, and deep technical mastery.

Purpose-Driven Engineering

From full-stack web applications to custom IoT hardware prototypes, we build reliable, scalable architectures designed to withstand growth and drive tangible outcomes.

Integrity & Transparency

We operate as an extension of your team with unvarnished advice, transparent technical choices, and an unwavering commitment to honesty at every stage.

Cross-Disciplinary R&D

Uniting high-level software development with embedded hardware, medical technology, and rapid physical fabrication gives us a unique competitive edge.

EE

Foxy Laboratories OÜ

Registered in Tallinn, Republic of Estonia · Registry #16848399

Official e-Business Register
Our Capabilities

Comprehensive engineering from concept to execution

We specialize in taking complex challenges and turning them into streamlined, high-value digital and hardware realities.

High-Performance .NET & Cloud Architecture

Designing rock-solid, concurrent systems and microservices with C# .NET, Python, and cloud infrastructure engineered for massive throughput, resilience, and clean domain design.

C# .NET Enterprise & Distributed SystemsHigh-Concurrency Web APIs & MicroservicesDatabase Tuning & Zero-Downtime MigrationsContainerized Cloud Deployment (Docker, AWS, GCP, Azure)

EDA Software, PCB Autorouting & IoT Hardware

Deep expertise in electronics design automation algorithms and physical hardware prototyping—from open-source PCB autorouting to custom sensing circuitry and low-latency systems.

Freerouting Algorithmic Development & IntegrationsKiCad & Autodesk Fusion EDA ToolingCustom Circuit & Hardware PrototypingBiomedical Sensor Telemetry & DSP Ingestion

Applied AI, Agent Workflows & Intelligent Tools

Building production-grade intelligence applications utilizing state-of-the-art LLMs, multi-agent evaluation pipelines, patent forensics, and audio feature extraction models.

Multi-Provider LLM Pipelines (Gemini, OpenAI, LLaMA)Patent Intelligence Forensics (Project Aether)AI Knowledge Extraction & Summarization (Snippex)Audio Analysis & Feature Models (Essentia, ML.NET)

Cryptographic Systems & FinTech Engineering

Toptal-certified blockchain and FinTech engineering for decentralized protocols, algorithmic trading engines, and cryptographically verified settlement systems.

Bitcoin & Cryptographic Protocol EngineeringVerifiable Randomness & Protocol LogicTrading Simulators & Portfolio ManagementSecurity Audits & Technical Due Diligence
Technical Arsenal & Stack

Core stack & engineering competencies

Battle-tested technologies and deep domain competencies applied across commercial web backends, EDA autorouters, and mission-critical engineering initiatives.

Architecture, EDA, AI & Infrastructure

Selected engineering toolchains with production-grade mastery.

Architecture & Backends

C# / .NET 10ASP.NET CorePython 3.12+Node.js / TypeScriptMicroservices & Distributed SystemsEF CorePostgreSQL / SQLiteREST & GraphQL APIs

Hardware, EDA & IoT

Freerouting Core (Java/JVM)PCB Design (KiCad & Altium)Raspberry Pi Headless LinuxBiomedical Telemetry & DSPAD7606 ADCsUSB & Device Protocols (LibUsb)

Applied AI & Audio/DSP

Gemini & LLaMA OrchestrationMulti-Agent WorkbenchesBook Summarization PipelinesEssentia Music AI ModelsML.NET Community ContributorDSP (FFT, WASAPI)

Blockchain & DevOps

Toptal Certified Blockchain SpecialistBitcoin / NBitcoin ProtocolsDocker & Container Registries (GHCR)Cloud Infrastructure (AWS/GCP/Azure)CI/CD AutomationModel Context Protocol (MCP)
Engineering Portfolio & Open Source

Proven systems, global tools, and deep-tech prototypes

Real-world solutions spanning worldwide open-source EDA infrastructure, LLM-powered patent intelligence, biomedical sensor hardware, educational media platforms, and simulation engines.

Freerouting
EDA & Open Source

Freerouting

⚡ 206k+ monthly active users · KiCad & Autodesk Fusion integrations · Native Docker & MCP

The world's premier open-source PCB autorouter, trusted globally by 206,000+ monthly electronics engineers. Decoupled the routing core, introduced a REST API, Python SDK, multi-arch Docker distribution, and Model Context Protocol (MCP) AI integration.

Lead MaintainerCore ArchitectureAPI & Cloud
Zseni Leszek
Education & EdTech

Zseni Leszek

⚡ 400,000+ hours delivered · 1,300 math videos · Full K-12 curriculum

The most popular YouTube math education channel in its market, with over 400,000 hours of educational material delivered across 1,300 structured 5-minute math videos covering the complete primary and secondary school curriculum.

FounderPlatform ArchitectureProduction & Delivery
Bio Balance Detector
Healthcare & MedTech

Bio Balance Detector

⚡ Custom analog sensing hardware · Real-time DSP · Medical telemetry

Innovative biomedical device uniting custom multi-frequency sensor circuitry, low-level DSP signal processing, and real-time telemetry analytics for physiological measurements.

Hardware DesignDSP & FabricationSoftware Architecture
Mr. Kupido
Culinary & Domain Simulation

Mr. Kupido

⚡ C#-compiled recipe simulator · Mono.Cecil IL weaving · Full ingredient taxonomy

The world's only C#-compiled, IL-weaved culinary simulation engine. Translates ambiguous human-written recipes into exact C# programs using runtime interceptors (Mono.Cecil) to calculate precise portions, nutritional profiles, cooking times, allergy restrictions, and ingredient substitutions across a comprehensive culinary taxonomy tree.

Architecture.NET 10 CompilerIL-Weaving
Snippex
AI & Digital Publishing

Snippex

⚡ 20-minute book summaries · Multi-LLM pipeline · Text, audio & podcast synthesis

AI-powered knowledge digestion and publishing platform condensing bestselling non-fiction books into 20-minute multi-format summaries. Features a production ASP.NET Core web platform with Azure CosmosDB and Stripe monetization, integrated with an automated LLM pipeline for chapter extraction, stylistic summarization, and verified EPUB publishing for Amazon Kindle.

Platform ArchitectureLLM PipelinesASP.NET Core
CrateFlow
Audio DSP & Real-Time Systems

CrateFlow

⚡ .NET 10 headless Linux engine · Real-time beatmatching DSP · Essentia AI

Dual-tier autonomous media system: an offline Python AI curation pipeline using Essentia neural models, combined with a headless C# .NET 10 24/7 live-broadcasting engine running on Raspberry Pi with WASAPI/miniaudio DSP and real-time LLM chat interaction.

Architecture.NET 10 EngineAudio AI
Praktiko
Education

Praktiko

⚡ Interactive problem sets · Digital learning workflows · Ergonomic UX

Ergonomic digital learning environment focused on practical skill acquisition, clean ergonomics, and interactive exercises.

BrandingDevelopment
Project Aether
Applied AI & Patent Intelligence

Project Aether

⚡ Multilingual EPO OPS retrieval · Gemini LLM analysis · Legal-status forensics

Streamlit-based patent intelligence workbench focused on high-signal triage for anomalous-energy research. Integrates multilingual search (EPO OPS & Lens), INPADOC legal forensics, and Gemini LLM relevance scoring with layered local caching.

System ArchitectureAgent WorkflowsGemini LLM
555 Lottery
Web3 & Cryptocurrencies

555 Lottery

⚡ Bitcoin-native cryptographic design · Algorithmic fairness

Verifiable, decentralized cryptographic Bitcoin lottery system demonstrating algorithmic fairness, cryptographic provability, and transparent prize distribution.

Protocol ArchitectureDevelopmentSecurity
Executive Profile & Technical Leadership

Architecture steered by proven engineering mastery

Hands-on technical leadership bridging low-level embedded hardware, high-throughput distributed .NET backends, and cutting-edge applied AI.

Andras Fuchs
Principal Architect & Founder

Andras Fuchs

Founder, Principal Architect & Managing Director

Andras Fuchs is the founder of Foxy Laboratories OÜ and the lead maintainer of Freerouting—the world-renowned open-source PCB autorouter serving 206k+ monthly users globally across KiCad, Autodesk Fusion, and modern electronics platforms. A Toptal Certified Blockchain Specialist (representing the top 3% of freelance talent worldwide), a Microsoft Certified .NET Application Developer, and an active member of the Microsoft ML.NET Developer Community Panel, Andras brings rare full-spectrum technical horsepower that spans from bare-metal hardware and DSP signal processing up to distributed cloud architectures and LLM-assisted intelligence platforms.

Verified Credentials & Honors

  • Lead Maintainer & Architect of Freerouting (206k+ Monthly Users Worldwide)
  • Toptal Certified Blockchain Specialist (Top 3% Global Network)
  • Microsoft Certified .NET Application Developer
  • Microsoft ML.NET Developer Community Panel Member
  • 15+ Years Systems Architecture, C# .NET, Python, and Deep-Tech Engineering
Distributed Cloud Architecture & High-Concurrency SystemsStrategic Systems Architecture & Technical AdvisoryElectronic Design Automation (EDA) & Algorithmic RoutingDSP & Biomedical Telemetry (EEG, ECG, EMG, EDF file standards, FFTW)Applied AI, LLM Orchestration & Multi-Agent Workbenches (Gemini, Essentia)Cryptographic Protocols, Bitcoin Architecture & Web3 Systems
Ethos & Inspiration

Principles that shape our mindset

"Concentrate all your thoughts upon the work in hand.The sun's rays do not burn until brought to a focus."
Alexander Graham Bell

Inventor, scientist and engineer

Connect With Us

Let's discuss your next breakthrough

Have a challenging project, an IoT prototype in mind, or need expert IT consultancy? Reach out directly to our headquarters in Tallinn.

Direct Communications

European Headquarter

Foxy Laboratories OÜ
Tartu maantee 67, 1-13b
10115 Tallinn, Harju
Estonia

Registry Code: 16848399

VAT ID: EE102671515

Tallinn, Estonia
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