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Mat Niznik
From United States 11:13 PM (GMT-07:00)
$60/hr or $120,000/yr

Active 1 hour ago


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FULL-STACK SOFTWARE DEVELOPER | MOBILE & WEB ENGINEERING

Full-Stack Engineer
Available for hire
Years of experience
10+ years
Experience level
Lead
Available for
Full-time, Contract
Available from
19 Sep 2026
Download Resume / CV

Senior Full-Stack Software Engineer with 8+ years of experience building scalable web and mobile applications across startup and production environments. Specialized in React, React Native, Node.js, and AWS, with strong expertise in API design, system architecture, and performance optimization. Proven track record of owning systems end-to-end—from architecture and development to deployment and scaling in fast-paced environments. Experienced in delivering AI-powered tools, mobile applications, and cloud-based platforms, with a focus on clean, maintainable code and real-world impact.

Employment History

FOUNDING SOFTWARE ENGINEER (CONTRACTOR) at MINTCOLLECT Current 2026 - Now
 Built a React Native mobile application from scratch for a trading card data platform.  Designed and implemented frontend architecture using TypeScript and Expo.  Integrated REST APIs for real-time data retrieval and user interactions.  Collaborated directly with founders in a fast-paced startup environment.
CTO / LEAD DEVELOPER at SENTIKITS 2025 - 2026
 Architecting and developing a React Native mobile application with Node.js backend.  Designed and implemented REST APIs, authentication flows, and subscription logic.  Integrated Shopify API for e-commerce functionality within the app.  Led technical decisions while actively contributing to hands-on development.
ADJUNCT PROFESSOR (COMPUTER SCIENCE) at BETHESDA UNIVERSITY OF CALIFORNIA 2024 - 2025
 Teach Mobile Application Development (JavaScript, React Native), Web Development (HTML, CSS, Python, Django, Flask, SQL, JavaScript), Introduction to Programming (C, Python, Data Structures), and Cross-Platform Design (Unity, C#).  Designed curriculum with real-world coding projects and assignments integrating AI tools into the development workflow.  Led faculty AI training for 6 department chairs on integrating AI into education, assignment design, and student evaluation.  Research: ChatGPT in the Studying Process: A Pedagogical Framework for Responsible Integration in Higher Education.
FOUNDER & FULL-STACK DEVELOPER at NIZNIK INTERACTIVE 2020 - 2026
 Built and shipped AI-powered tools and startup MVPs across web and mobile platforms.  Developed CoThink.AI (EdTech platform) using React and Python for AI-assisted education workflows.  Co-founded STNDOUT, an AI-driven personal branding tool with automated content generation.  Delivered end-to-end solutions including frontend, backend APIs, and deployment.

Education

M.S. COMPUTER SCIENCE at WESTCLIFF UNIVERSITY Current 2025 - Now
MASTER OF BUSINESS ADMINISTRATION (GPA: 3.91) at BETHESDA UNIVERSITY OF CALIFORNIA 2023 - 2025