Nicholas
Alvarez
Hey, I'mNicholas
Nicholas
Alvarez
I build fast, accessible, and visually compelling digital experiences from pixel-perfect UIs to scalable backend systems.
Available for work
Applied Math Mastery
Problem
Build a full-stack gamified math learning platform that connects curriculum mastery to real-world careers and measurable progress
Core Technologies
ReactTypeScriptViteGoFiberREST APIJWTVercelZustandPlotly.jsFramer Motion
Solution
- Full-stack learning platform: React/TypeScript frontend with Vite, Go/Fiber REST API, JWT authentication, and Vercel deployment.
- Forge Mode teaches Algebra, Calculus, Statistics, Geometry, etc. through concept visuals, Plotly simulations, and adaptive multiple-choice exercises.
- Career Explorer maps each subject to real roles with salary data and estimated mastery-based salary boosts.
- Gamified progress system with XP, levels, streaks, daily challenges, mastery badges, achievements, and weekly/all-time leaderboards.
- Protected user dashboard and progress APIs with CORS, middleware, and rate limiting — open source and free for educational use.
- Visit the Open-Source Github Repo: https://github.com/NickAlvarez20/applied-math-mastery
Relationhance
Problem
Architect, Design, and Deploy Startup Tech Business with integrated AI and Stripe for Payments.
Core Technologies
ReactTypeScriptGoMongoDBJWTStripeLLM Integration
Solution
- Full-stack startup: React/TypeScript frontend, Go backend, MongoDB, and JWT authentication.
- Integrated real LLM models for AI-powered task and reward suggestions.
- Stripe payments wired end-to-end for B2B and B2C monetization.
- B2B/B2C platform targeting the $250B+ consumer tech, edtech, workplace, military, and government training spaces — designed for everyone in life, family, friends, relationships, education systems, military, work teams, and HR training systems.
- Gamifies relationship building, networking, and collaboration to drive measurable gains in quality of relationships, closer communities, stronger bonds, leadership effectiveness, work force retention, and team morale.
EndPointDB
Problem
Learn full-stack development after completing backend specialization
Core Technologies
REST APIAWS Elastic BeanstalkAWS EC2AWS RDSAWS IAMJWTHTTPSLoad Balancer
Solution
- Full-stack forum app with secure user registration, login/logout, posts, replies, likes, and JWT authentication.
- Auth controller handles token validation, password management, and session management via cookies and local storage.
- Deployed to AWS Elastic Beanstalk with EC2 (SSH), RDS for relational data, IAM for permissions, and HTTPS via load balancer.
- Leverages environment variables and Elastic Beanstalk extensions for streamlined, scalable deployments.
- Resulted in purchasing my first official domain — GuruCoding.com — and demonstrates full back-to-front production readiness.
Matrix Book Library API & Dashboard
Problem
Build a professional-grade full-stack CRUD application with real persistence and responsive UI
Core Technologies
GoGinGORMSQLiteReactTypeScriptVercel
Solution
- REST API built in Go using Gin and GORM with SQLite — full CRUD, input validation, correct HTTP status codes, and thread-safe database access.
- React + TypeScript frontend with useState/useEffect state management, async/await data fetching, and optimistic UI updates for instant feedback.
- Mobile-first, polished UI with search functionality.
- Fully deployed as a serverless application on Vercel — end-to-end full-stack from API design to production.
- Visit the Open-Source Github Repo: https://github.com/NickAlvarez20/MatrixLibrary
Programming Languages
Frontend Development
Backend & APIs
Databases & Data
Architecture & DevOps
Engineering Principles
Computer Science Core
AI/Machine Learning
About
About Nicholas Alvarez
Built to ship.Engineered to scale.
Full-Stack & AI Engineer | Founder | 775K+ players coached | 10M+ viewsFounder of Relationhance (Stripe + LLM SaaS) and Applied Math Mastery (open-source edtech).CourseCareers backend specialization (4.0 GPA), trained by Microsoft & IBM engineers.
0K+Players Coached
0M+Content Views
0.0GPA
0moMath Mastery Sprint
Who I Am
01- Full-Stack Engineer and Founder. Built and shipped systems serving hundreds of thousands across YouTube, Applied Math Mastery, Relationhance, and tech blogs.
- Specialized in Go, TypeScript, JavaScript, Python, SQL/NoSQL, and C/C++, with AI engineering across LangChain, LangGraph, MCP servers, RAG pipelines, and vector databases (ChromaDB).
- CourseCareers backend specialization with a 4.0 GPA, trained by former Microsoft and IBM engineers. BA Economics, University of Arizona, including a 50-page SAS thesis in quantitative data analysis.
- Lead Engineer & Technical Writer at nickalvarez.dev/blog. Top 7% on LeetCode, Top 2.2% on Codewars. Completed a 14-year Khan Academy math curriculum in 15 months.
- Mentored hundreds of thousands of learners through a top #4,400 YouTube channel with 775K+ players coached and 10M+ views.
Selected Projects
02- Applied Math Mastery. I owned full-stack delivery: React + TypeScript (Vite) with a Go Fiber REST API, JWT auth, CORS, rate limiting, gamification (XP, streaks, leaderboards), and Vercel monorepo deployment. Live at appliedmathmastery.vercel.app, open source on GitHub.
- Relationhance. I built a monetized B2B/B2C SaaS with LLM integration and end-to-end Stripe billing on Go, MongoDB, and JWT, targeting the $250B+ edtech and workplace training market.
- EndPointDB. I designed and deployed a full-stack forum on AWS Elastic Beanstalk, EC2, RDS, IAM with HTTPS load balancing, JWT auth, bcrypt hashing, Zod validation, and XSS protection, shipped under my first licensed domain (GuruSystemsCoding.com).
- Matrix Book Library API. I shipped production CRUD with Go/Gin/GORM + React/TypeScript on Vercel serverless: validated REST routes, thread-safe persistence, optimistic UI, and mobile-first search.
Skills & Expertise
03- Languages: Go, TypeScript, JavaScript, Python, C/C++, SQL and NoSQL, plus SAS from a 50-page economics thesis. Daily use across SaaS, open source, and deployed portfolio projects.
- AI Engineering: LLM integration (Claude, Cursor, xAI, OpenAI), LangChain, LangGraph stateful multi-tool agents, Model Context Protocol (MCP) servers, RAG pipelines, vector databases (ChromaDB), embeddings/semantic search, and prompt engineering, with hands-on labs public on GitHub.
- Frontend & Backend: React, Next.js, Vite, Node.js, Express, Go Fiber, Gin/GORM, Prisma, RESTful APIs, JWT auth, middleware, CORS/rate limiting, and Stripe integration, proven on Relationhance, Applied Math Mastery, and EndPointDB.
- Cloud & Data: AWS (EC2, RDS, IAM, S3, Elastic Beanstalk), Vercel serverless, PostgreSQL, MongoDB, SQLite, Redis, schema design, migrations, and CI/CD deployment pipelines.
- CS Core: LeetCode Top 7%, Codewars Top 2.2%, data structures and algorithms, system design, and Go concurrency.
- Communication with proof: Lead Engineer & Technical Writer at nickalvarez.dev/blog, software engineer mentoring at CourseCareers and math mentoring at Khan Academy.
Experience & Results
04- Founder & Lead Engineer, Relationhance. Architected, built, and deployed a Stripe and LLM-integrated SaaS (React/TypeScript, Go, MongoDB, JWT) with full end-to-end ownership, from AI features and billing to production deployment.
- Founder & Lead Engineer, Applied Math Mastery. Shipped a free open-source gamified learning platform (React + TypeScript, Go Fiber, JWT, Vercel) live at appliedmathmastery.vercel.app with Forge Mode, Career Explorer, and XP/leaderboards.
- Top YouTube channel builder. Grew a gaming channel ranked top #4,400 on YouTube to 775K+ players coached and 10M+ views, proof of audience growth, consistency, and entrepreneurial execution.
- Supporting results: 4.0 GPA backend specialization at CourseCareers, Lead Engineer & Technical Writer at nickalvarez.dev/blog, and BA Economics, University of Arizona.
- Open to software engineering roles in backend, full-stack, and AI/ML.
Curriculum vetted by industry engineers@TechWithTim (Microsoft) & @Caleb Curry (IBM) — 2.8M+ combined subscribers
4.0 GPA · Straight A'sVerified Skills ↗