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 Engineer & Founder | 750K+ users helped | 10M+ views | AWS & VercelFounder of Relationhance (Stripe + AI SaaS) and Applied Math Mastery (open-sourceedtech). Backend specialization at CourseCareers (4.0 GPA), trained by Microsoft & IBM engineers.
0K+Players Helped
0M+Content Views
0.0GPA
0moMath Mastery Sprint
Who I Am
01- Full-Stack Engineer | Built systems serving hundreds of thousands | YouTube & Applied Math Mastery & Relationhance & Tech Blogs.
- Specialized in Python, Go, TypeScript, JavaScript, SQL/NoSQL, C++, Node.js, React, Express, Prisma and AI (Claude, etc.). Completed backend software engineering at CourseCareers with a 4.0 GPA, trained by former Microsoft and IBM engineers TechWithTim and Caleb Curry.
- BA Economics, Eller College of Management, University of Arizona - learned to code through a 50-page senior thesis using SAS for quantitative data analysis. Founder & Lead Engineer of Applied Math Mastery (free open-source edtech) and Relationhance (Stripe & AI-integrated SaaS).
- Lead Engineer & Technical Writer for nickalvarez.dev/blog. Ranked Top 2.2% on Codewars and Top 9% on LeetCode; achieved 100% mastery of a 14-year Khan Academy math curriculum in 15 months to strengthen AI/ML foundations.
- Leadership at scale: mentored hundreds of thousands of learners through a top #4,400 YouTube channel (750K+ players coached, 10M+ views), while guiding mathematics on Khan Academy and software engineering at CourseCareers.
Selected Projects
02- Applied Math Mastery - I owned full-stack delivery: React + TypeScript (Vite) + Go Fiber REST API with JWT auth, CORS, rate limiting, gamification (XP, streaks, leaderboards), and Vercel monorepo deployment. Live at appliedmathmastery.vercel.app | OSS on GitHub.
- Relationhance - I built a monetized B2B/B2C SaaS with LLM integration, Stripe billing end-to-end, MongoDB, and JWT auth - targeting the $250B+ edtech and workplace training market with measurable relationship and team outcomes.
- EndPointDB - I designed and deployed a full-stack forum on AWS Elastic Beanstalk, EC2, RDS, IAM, with HTTPS load balancing and JWT session management - my first licensed domain (GuruCoding.com) and proof of production AWS readiness.
- Matrix Book Library API - I shipped professional CRUD with Go/Gin/GORM + React/TypeScript on Vercel serverless: validated REST routes, thread-safe persistence, optimistic UI, and mobile-first search - API design through production.
Skills & Expertise
03- Languages (Expert): Python, Go, TypeScript, JavaScript, C++, SQL and NoSQL - plus SAS from a 50-page economics thesis on quantitative data analysis. Daily production use across SaaS, OSS, and deployed portfolio projects.
- Frontend & Backend (Expert): React, Next.js, Vite, Node.js, Express, Gin/GORM, Go Fiber, Prisma, RESTful APIs, JWT auth, middleware, CORS/rate limiting, and Stripe + AI (Claude/LLM) integrations - proven on Relationhance, Applied Math Mastery, and EndPointDB.
- Cloud & Data (Advanced): AWS (EC2, RDS, IAM, S3, Elastic Beanstalk), Vercel serverless, MongoDB, PostgreSQL, SQLite, ERD-driven schema design, migrations, and CI/CD deployment pipelines - 2 years hands-on shipping secure production apps.
- CS Core & Logic (Advanced): LeetCode Top 9%, Codewars Top 2.2%, data structures, algorithms, system design, Go concurrency, and 100% mastery of 14-year Khan Academy math in 15 months to strengthen AI/ML reasoning and optimization.
- Soft skills with proof: Lead Engineer & Technical Writer at nickalvarez.dev/blog; mentors engineers at CourseCareers and learners on Khan Academy - clear documentation, code reviews, and cross-functional communication backed by real teaching volume.
- Currently exploring: Deeper AI/ML (TensorFlow/PyTorch, NLP, computer vision), distributed systems patterns, and containerized deployment - building on a backend specialization completed with a 4.0 GPA at CourseCareers.
Experience & Results
04- Founder & Lead Engineer, Relationhance - I architected, built, and deployed a Stripe & AI-integrated SaaS (React/TypeScript, Go, MongoDB, JWT) targeting the $250B+ edtech and workplace training market - from LLM-powered features and billing to production deployment with full end-to-end ownership.
- Founder & Lead Engineer, Applied Math Mastery - I shipped a free open-source gamified learning platform (React + TypeScript, Go Fiber, JWT, Vercel) live at appliedmathmastery.vercel.app with Forge Mode, Career Explorer, XP/leaderboards, and contributor-ready docs on GitHub.
- Top YouTube channel builder - Grew a gaming channel ranked top #4,400 on YouTube to 750K+ players coached and 10M+ views, often featured in viral community content - proof of audience growth, content systems, and entrepreneurial execution at scale before and alongside my software products.
- Supporting results: Backend specialization at CourseCareers (4.0 GPA); Lead Engineer & Technical Writer at nickalvarez.dev/blog; BA Economics, Eller / U of Arizona - business ROI thinking paired with founder-level shipping discipline.
- 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 ↗