STEPHEN LESHKO

ML & Web App Developer

I’m a dedicated developer specializing in web technologies, AI, and scalable solutions. Currently studying at Penn State, building impactful tools and startups.

Stephen Leshko

Education

Pennsylvania State University

Bachelor of Science, Computer Science (2025)
  • GPA: 3.87
  • Relevant Coursework: Data Structures & Algorithms, Artificial Intelligence, Operating Systems
  • Work Experience

    Founder & CTO, OfferPilot

    March 2023 - Present
  • Generated over $56,000 in revenue through integration of Stripe payment processing, webhooks and pitch competitions by developing a cover letter creator and resume upgrader using natural language processing
  • Achieved 15,000+ signups, 300+ new subscribers, and 1,200 daily active users in August-December 2024 through creation of a web scraping system that locates top job opportunities by scanning over 300,000 postings per day
  • CMPSC 263 Instructor, Pennsylvania State University

    Jan 2025 - May 2025
  • Taught 45+ students to build full-stack websites & blockchain apps using Next.js, Firebase, & Solidity, improving project quality through tailored curriculum development & teaching expertise
  • Graded assignments, managed a team of 2 learning assistants, & hosted office hours, providing support that boosted student performance by 20% on assignments, technical expertise & strong interpersonal skills
  • Backend Developer, Achievify

    Jan 2023 - Sep 2023
  • Co-developed an AI-driven Next.js application, PathQuester, with interactive quizzes, providing personalized career guidance specifically designed to support individuals from marginalized communities
  • Curated database of over 1,000 unique careers by integrating YouTube's Data API and leveraging GPT-4 to exhibit engaging, career-centric content, enhancing user engagement through personalized web experiences
  • Mobile Developer, Veraplex Solutions LLC

    Jan 2023 - Sep 2023
  • Engineered a high-performance backend for a React-Native app, integrating Square and DoorDash APIs, resulting in a 25% increase in delivery profit margins and enhanced real-time order tracking
  • Boosted customer satisfaction by designing a loyalty program and in-app purchasing system, streamlining food ordering and rewarding users with a points system
  • Projects

    DreamBuild

  • Automated the production of educational YouTube videos through creation of AI-generated educational content using Python and Firebase for hosting
  • Innovated an automation workflow with Zapier Zap and Google Cloud webhooks, enabling scheduled video creation and uploads
  • TutorAI

  • Increased user comprehension of sample exam material by 21% through the development of complex algorithms on a Next.js website, utilizing LLMs with retrieval augmented generation for notes-based studying assistance
  • Enhanced platform accessibility by incorporating Microsoft Azure's OCR technology to accurately interpret handwritten math homework and equations, benefiting a broader range of students
  • SpitFire

  • Secured 1st place in the entertainment track at HackPSU Spring 2023 by developing the backend using Google Firebase for authentication, audio storage, and a recommendation system tailored to user preferences
  • Created a text-to-speech algorithm that generated AI rap battle videos featuring pop culture figures, effectively integrating Google Firebase for database management and video storage
  • PresentAI

  • Developed an application enabling users to record practice presentations and interviews, and receive AI-driven feedback on facial expressions, eye contact, pacing, and voice tone, enhancing public speaking skills