About Me

George Sakelaris - Software Engineer

Hey there! I'm George (Daniel), a software engineer driven by curiosity and a passion for turning complex ideas into real-world solutions. My journey started with a Computer Science degree from DePaul University and has taken me through everything from machine learning models that predict fights to building enterprise applications.

What drives me is a genuine love for building software. My projects range from practical tools to fun experiments - each one teaching me something new. Whether it's machine learning, web development, or systems programming, I'm always eager to dive into the next technical challenge.

Through Telescode LLC, I channel this passion into creating solutions for clients while continuing to experiment with personal projects. It's this blend of professional work and creative exploration that keeps me excited about software engineering.

Chicago, IL

Based in

DePaul University

Education

Telescode LLC

Company

Machine Learning & UFC

Passion

Daniel Sakelaris

Featured Projects

UFC Fight Prediction Model

UFC Fight Prediction Model

Machine learning model that predicts UFC fight outcomes.

PythonXGBoostML
MMA Warriors

MMA Warriors

Pokemon-like MMA card game.

HTMLCSSJavaScript
Digital Marketplace 2.0

Digital Marketplace 2.0

Online software/file marketplace with AWS backend.

ReactAWSStripe
SumTube AI

SumTube AI

AI-powered YouTube video summarizer.

PythonOpenAIDjango
Rustext

Rustext

Keyboard-oriented command-line text editor built with Rust.

Rust
Zeitgeist

Zeitgeist

Social media application.

TypeScriptReact NativeFirebase

My Professional Journey

Full-Stack Software Engineer

Telescode

July 2023 - Present
  • Developed e-commerce platform for digital product sales using React and AWS serverless architecture
  • Implemented payment processing with Stripe API and automated file delivery via S3 signed URLs
  • Deployed serverless backend using AWS Lambda, API Gateway, and DynamoDB with Infrastructure as Code
  • Developed and commercialized portfolio of Windows applications and data products, ranging from automated data collection tools to machine learning prediction systems
ReactAWSLambdaAPI GatewayDynamoDBS3Stripe

Backend Software Engineer

Resilience, Inc.

January 2023 - July 2023
  • Led end-to-end development of a mobile application from inception to production
  • Architected Oracle database and Node.js/Express backend while prototyping React Native frontend components
  • Engineered complete backend infrastructure from scratch, including database design, RESTful APIs, and secure authentication
  • Implemented core security features including password encryption, JWT-based session persistence, and user registration/verification systems
Node.jsExpressOracleReact NativeJWTREST API

Lead Sports and Recreation Supervisor

Ray Meyer Fitness and Recreation Center

August 2021 - June 2023
  • Promoted to Lead Sports Supervisor in August 2022, becoming the first person in facility history to achieve this position, demonstrating exceptional leadership
  • Authored comprehensive Sports Supervisor handbook and training manual, then planned and led formal training sessions for 15+ new hires
  • Supervised diverse sporting activities across basketball courts, tracks, and recreational areas while maintaining high safety standards and patron experience
  • Served as primary liaison between patrons, club sports participants, building managers, and staff, earning recognition for strong interpersonal skills and ability to handle stressful situations with professionalism
LeadershipCommunicationTrainingConflict ResolutionOrganization

My Educational Background

DePaul University

Bachelor of Science - Computer Science

Concentration: Software Development

2020 - 2023
Chicago, IL

Key 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

Relevant 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

What I Work With

Programming Languages

PythonJavaScriptTypeScriptC#SQLHTML/CSSJavaGoSwiftRustScalaPHP
12

Web & Mobile Development

ReactNext.jsNode.jsExpress.jsDjangoASP.NET CoreReact NativeREST APIsGraphQLWebSocketsTailwind CSSVue.jsResponsive Design
13

Cloud & DevOps

AWS (Lambda, S3, EC2, RDS, CloudFormation)AzureGCPDockerKubernetesTerraformGitGitHub ActionsCI/CD PipelinesNginxMicroservices Architecture
11

Data Analysis & Visualization

PandasNumPyMatplotlibSeabornJupyter NotebooksPower BITableauExcel
8

Database Systems

PostgreSQLMySQLMongoDBRedisSQLiteOracleElasticsearchVector Databases
8

Machine Learning & AI

XGBoostLightGBMCatBoostscikit-learnTensorFlowPyTorchOpenAI APILangChainRAGPrompt EngineeringNLPComputer VisionModel Fine-tuning
13

Testing & Quality

JestPytestUnit TestingIntegration TestingTest-Driven Development (TDD)
5

Additional Tools

Linux/UnixPostmanSwaggerWeb Scraping (BeautifulSoup, Selenium)Agile/ScrumJIRA
6

Who I Am Beyond Code

My personality traits and strengths that shape how I approach problems and work with others.

MBTI: Commander (ENTJ-T)

Bold, imaginative, and strong-willed, always finding a way – or making one. Decisive types who love momentum and accomplishment.

Extraverted (65%)
Intuitive (60%)
Thinking (54%)
Judging (74%)

HIGH5 Strengths

Philomath
Time Keeper
Deliverer
Strategist
Coach