STEPHEN LESHKO

ML & Web App Developer

I’m a dedicated developer specializing in web technologies, AI, and scalable solutions

Stephen Leshko

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 20,000+ 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
  • Education

    Pennsylvania State University

    Bachelor of Science, Computer Science (2025)
  • GPA: 3.88
  • Relevant Coursework: Data Structures & Algorithms, Artificial Intelligence, Operating Systems