I design, build, and support web apps, cloud/SaaS backends, databases, AI/LLM systems, and crypto-mining infrastructure — plus consultancy on architecture, performance, and cost.
Delivered remotely/online for clients worldwide (international projects welcome). Free intro discussion available.

• Help individual miners and small/medium GPU/ASIC owners and mining farms deploy performance-hardened, scalable mining pools for all mineable algorithms and coins, including Bitcoin and altcoins.
• Linux server management (Ubuntu, CentOS, Red Hat) · Blockchain node ops · Mining pool architecture — secure access and clear handover.
• Cloud & SaaS backends — design and build APIs, microservices, and multi-tenant apps on AWS / GCP / Azure with CI/CD, Docker/Kubernetes, monitoring, and logging.
• AI & LLM solutions — assistants and workflow automation; training/fine-tuning (SFT, LoRA), embeddings & RAG, evaluation and safety/guardrails; deployment/serving on your cloud (OpenAI, Anthropic, Llama 3, Mistral, vLLM/TGI) with cost/performance tuning and monitoring.
• Database solutions for PostgreSQL, MySQL, MariaDB, SQLite, MS SQL Server, and Oracle.
• Websites & custom applications (full-stack), plus integrations and automation.
• Software development & maintenance — new features, bug fixes, and refactors across: C/C++, C#, Python, Java, Go, Rust, COBOL, R, Solidity, TypeScript, Swift, Kotlin, Ruby, PHP, Dart, Haskell, Julia, Bash, Perl, Scala, Lua, Vyper, Assembly, Fortran, Elixir, F#, Zig, OCaml, Scheme, Lisp, Prolog, Ada, Tcl, Groovy, Awk, Sed, PowerShell, Move, MATLAB, SAS.

• 🔧 Yiimp-Based Multi-Algo, Multi-Altcoin Mining Pool Setup
  Setup for Yiimp, Miningcore, and NOMP on Ubuntu 20.04 / 22.04 / 24.04 — delivered online with documentation.

• ⚡ Bitcoin Mining Pool Setup and Installation
  Turnkey Bitcoin mining pool deployment with ASICBOOST support — available to clients worldwide.

• 🤖 AI & LLM: Training and Private Deployment
  Data prep, fine-tuning (SFT/LoRA), retrieval with vector search, prompt design, and serving via vLLM/TGI/FastAPI. Includes evaluation, guardrails, and observability—hosted on your cloud with clear runbooks.

• 🧩 Open Source Software Building & Customization
  Tailored builds, integrations, and performance tuning across platforms.

• ☁️ Cloud & SaaS Development
  SaaS backends, APIs, microservices, and multi-tenant features with CI/CD and observability.

• 🤝 Consulting & Advisory
  Architecture reviews, migration plans, cost/performance tuning for cloud, AI/LLM, and blockchain.
  Free intro discussion to understand your goals and recommend options.

Available for hire (remote/online). International work welcome.

• 📧 Email: onlinebuybiz@gmail.com
• 💬 Telegram: click to get in touch
• 💻 Discord: goodthebest

“We’ll liberate you from your tech headaches by giving you the tools, systems, or support to solve them effortlessly.”