About Me

George Sakelaris

Full-Stack Software Engineer

I'm a full-stack software engineer with a B.S. in Computer Science from DePaul University (Magna Cum Laude, 3.72 GPA). I specialize in building and operating production B2B SaaS — multi-tenant backends, async processing pipelines, cloud infrastructure, and subscription billing.

As the founder of Telescode LLC, I launched Starscreen.net — an AI-powered recruiting platform built on FastAPI, PostgreSQL, Celery/Redis, and AWS. I've handled everything from architecture and code to product demos for HR stakeholders and translating feedback into roadmaps.

I'm driven by the end-to-end challenge: taking a product from idea to production, optimizing for performance and cost, and delivering real value. Whether it's ML prediction models, serverless e-commerce, or CLI tools in Rust — I'm always building.

Based in

Chicago, IL

Education

DePaul University

Company

Telescode LLC

Passion

Machine Learning & UFC

George Sakelaris

Work

Featured Projects

Starscreen.net

Starscreen.net

Production-ready multi-tenant SaaS for AI-powered resume screening. Features async Celery pipelines, GPT-4o scoring, Stripe subscriptions (up to 15k candidates), JWT/Row-Level Security, and CI/CD to AWS EC2 via GitHub Actions.

FastAPIPostgreSQLCeleryRedisGPT-4oAWSStripeDocker
UFC Fight Predictor

UFC Fight Predictor

Stacked ensemble model (XGBoost, LightGBM, CatBoost) with a neural network meta-learner achieving 68% winner accuracy. Scraped 6,000+ fights and engineered 200+ features including momentum indicators and statistical differentials.

PythonXGBoostLightGBMCatBoostscikit-learnNLP
SumTube AI

SumTube AI

Django web app that generates AI-powered YouTube video summaries using yt-dlp, Google Speech Recognition, and OpenAI GPT-4. Implemented DB caching that cut API costs by 70% and reduced response time from 45s to 2s for cached videos.

PythonDjangoOpenAI GPT-4PostgreSQLNginxAWS EC2
Digital Marketplace

Digital Marketplace

E-commerce platform for digital product sales using React and AWS serverless architecture. Stripe payments and S3 automation reduced fulfillment time by 99%.

ReactAWS LambdaAPI GatewayDynamoDBS3Stripe
Rustext

Rustext

High-performance command-line text editor built from scratch in Rust. Custom data structures for efficient memory usage, low-level I/O via Crossterm for cross-platform terminal compatibility, and dirty-flag state management.

RustCrosstermSystems Programming
MMA Warriors

MMA Warriors

Browser-based Pokemon-style MMA card game built in vanilla JavaScript. Features fighter stat cards, turn-based combat logic, and dynamic DOM rendering with no frameworks.

HTMLCSSJavaScript

Experience

Professional Journey

Software Engineer & Technical Consultant

LK Small

Nov 2025 – Present
  • Built and maintained multiple websites including a donation platform with Stripe integration to process online contributions
  • Provided ongoing technical consulting to the founder/president, evaluating and implementing technology solutions to support organizational goals
  • Contributed to development of a mobile application to support the organization's initiatives
  • Created professional presentations for leadership, including a partnership pitch between LK Small and Dollar General for a literacy program, and a funding presentation for financing discussions
ReactStripeReact NativeTypeScriptNode.js

Founder & Full-Stack Software Engineer

Telescode LLC

Jul 2023 – Present
  • Founded a software consultancy and SaaS incubator; launched Starscreen.net, an AI-powered recruiting platform, while delivering bespoke web solutions for small business clients
  • Architected a production-ready multi-tenant backend using FastAPI, PostgreSQL, and Celery, handling asynchronous resume parsing and AI scoring (OpenAI GPT-4o) for high-volume recruitment workflows
  • Designed scalable cloud infrastructure on AWS (EC2, S3) with Docker; implemented cost-optimization strategies that reduced projected storage costs by ~60% for enterprise-tier data
  • Integrated Stripe for subscription management (Free to Enterprise tiers) with enterprise-grade security (JWT, Row-Level Security) to meet B2B compliance requirements
  • Built e-commerce platform using React and AWS serverless architecture (Lambda, API Gateway, DynamoDB) with Stripe payments and S3 automation reducing fulfillment time by 99%
  • Commercialized 3 Windows applications and data products serving 120+ users, including ML prediction systems and automated data tools
FastAPIPostgreSQLCeleryRedisAWSDockerReactStripeOpenAI GPT-4oGitHub Actions

Backend Software Engineer

Resilience, Inc.

Jan 2023 – Jul 2023
  • Led end-to-end development of a mobile application from inception, architecting the full backend infrastructure from scratch
  • Architected Oracle database and Node.js/Express backend while prototyping React Native frontend components
  • Engineered 15+ RESTful API endpoints supporting 1,000+ daily API requests
  • Implemented core security features including bcrypt password encryption, JWT-based session persistence, and user registration/verification systems
Node.jsExpressOracleReact NativeJWTbcryptREST API

Education

Academic Background

DePaul University

Bachelor of Science · Computer Science · Software Development

2020 - 2023·Chicago, IL

Achievements

  • Dean's List: 2020-2021 Winter, 2021-2022 Autumn, 2022-2023 Autumn, Winter, Spring, 2023-2024 Autumn
  • Student Representative on CDM Personnel Committee for faculty tenure/promotion evaluations
  • Co-founded DePaul Martial Arts Club, serving as Vice President and Treasurer

Coursework

Object-Oriented Enterprise Application DevelopmentDatabase Systems & ProgrammingData AnalysisSoftware Testing & Agile DevelopmentDistributed SystemsSafe Systems Programming (Rust)Mobile App Development for iOSWeb DevelopmentInteractive Web Scripting
GPA
3.715
Magna Cum Laude

Skills

What I Work With

Programming Languages

PythonC#JavaScriptTypeScriptSQLHTML/CSSJavaSwiftRustScalaCC++

Web & API Development

FastAPIDjangoASP.NET CoreNode.jsExpress.jsReactNext.jsAlpine.jsTailwind CSSGraphQLRESTful APIsSpring BootPydantic

Backend & Architecture

CeleryRedisAsynchronous ProcessingMicroservicesEvent-Driven ArchitectureJWT AuthenticationbcryptStripe API

Database & Storage

PostgreSQLSQLAlchemy ORMAlembic MigrationsRedis (Broker & Cache)MongoDBAWS S3boto3Vector Databases

Cloud & DevOps

AWS EC2AWS LambdaAWS S3AWS RDSDocker ComposeGitHub ActionsCI/CD PipelinesKubernetesNginxLinux/UnixSSH AutomationJenkins

Machine Learning & AI

ChatGPTClaude (Code)GeminiGrokPrompt EngineeringXGBoostscikit-learnPyTorchNLP

Professional

Technical DiscoveryRequirements GatheringAgile/ScrumStakeholder ManagementProduct DemosFull-Cycle Development

Data & Analysis

PandasNumPyMatplotlibScikit-learn PipelinesWeb ScrapingJupyter Notebooks

MBTI — Commander (ENTJ-T)

Bold and decisive, always finding a way — or making one. Strong drive for momentum and accomplishment.

Extraverted65%
Intuitive60%
Thinking54%
Judging74%

HIGH5 Strengths

01Philomath
02Time Keeper
03Deliverer
04Strategist
05Coach