Hello, I'm Elias Dayan 👋

A versatile Full Stack Software Developer 🚀 with expertise in creating impactful business solutions through technology. I specialize in developing high-performance web and mobile applications, robust backend services, and seamless system integrations that drive operational efficiency and business growth.

What I Deliver

TECHNICAL SOLUTIONS THAT SOLVE BUSINESS CHALLENGES

  • html-5

  • css3

  • JavaScript

  • React

  • Flutter

  • NestJS

  • Express/Node.js

  • Django

  • TypeScript

  • flask

  • Docker

  • Nginx

  • VPS Management

  • CI/CD

  • Linux

  • Git

  • MongoDB

  • TypeORM

  • SQL Databases

  • Firebase/Firestore

  • Stripe

  • Veriff

  • Twilio

  • GCP

  • Webhooks

⚡ Full-stack web development: React frontends, Express/Node.js backends, Django applications, and MongoDB databases with security and performance optimization

⚡ Cross-platform mobile solutions: Flutter applications with state management, offline capabilities, and seamless API integration

⚡ DevOps & infrastructure: Server configuration (Nginx, Apache), VPS management, CI/CD pipelines, containerization, and cloud deployment

⚡ System integrations: Payment processing (Stripe), identity verification (Veriff), authentication services, cloud infrastructure (GCP/Firebase), and third-party APIs

Proficiency

Architecture & System Design

Mobile & Frontend Development

Backend & API Development

Database & Data Modeling

Third-Party Integrations

DevOps & Deployment

Education

Harvard University
Harvard University
CS50: Introduction to Computer Science

September 2022 - February 2023

Harvard's renowned introduction to computer science covering fundamental concepts and multiple programming paradigms.

  • Mastered core programming concepts through C (memory management, pointers, data structures), Python (higher-level abstractions), and web development (HTML, CSS, JavaScript)
  • Developed problem-solving skills through computational thinking, algorithm design, and data structure implementation with applications in cryptography, finance, and gaming
  • Built a full-stack web application using Flask, SQL, and JavaScript that implemented a stock trading platform with real-time price tracking, user authentication, and transaction history
Harvard University
Harvard University
CS50 SQL: Introduction to Databases with SQL

September 2024 - December 2024

Comprehensive database design and implementation course covering relational database concepts and modern SQL practices.

  • Designed complex data models with appropriate relationships, constraints, and normalization techniques to eliminate redundancies and reduce potential errors
  • Implemented advanced SQL features including joins, indexes, views, triggers, and stored procedures to optimize query performance and automate database operations
  • Created real-world database applications spanning multiple platforms (SQLite, PostgreSQL, MySQL) with integration to Python and JavaScript applications
Westhill University
Westhill University
Bachelor Degree in Business Management

January 2019 - December 2022

Business education providing strategic context for technology solutions and organizational management.

  • Gained expertise in business strategy, market analysis, and organizational principles that enhance technical implementations with business context
  • Developed project management and leadership skills that complement technical abilities, enabling effective communication with stakeholders and cross-functional teams

Experiences

Sistemify
Sistemify
Lead Software Engineer
January 2025 - Present

Leading development of business operation systems for retail and service industries

  • Built MERN-stack POS and inventory system reducing manual processes by 70%
  • Implemented real-time analytics dashboard providing actionable business intelligence
  • Designed invoice generation system compliant with local tax regulations
Smarq Arquitectos
Smarq Arquitectos
ERP Solutions Architect
July 2024 - December 2024

Developed custom ERP for construction industry, streamlining project and financial management

  • Architected Django solution reducing administrative overhead by 40%
  • Created automated document generation system for contracts and deliverables
  • Optimized data schema for complex construction project relationships
Freelance & Otrofy
Freelance & Otrofy
Flutter Solutions Developer & Sr. Full Stack Developer
July 2023 – Present

Building high-impact mobile applications and marketplace platforms

  • Developed Soul Gym learning platform with 65% improvement in user retention
  • Created BBOXX Marketplace processing 500+ daily transactions with 99.9% uptime
  • Implemented secure payment infrastructure with KYC verification and OAuth
  • Built Pauseture fitness app with offline functionality and content personalization
Manufacturas Adir
Manufacturas Adir
Digital Transformation Consultant
November 2021 – December 2022

Led technology modernization initiative for manufacturing operations

  • Implemented Flutter-based inventory system reducing errors by 85%
  • Developed reporting automation saving 25+ hours weekly
  • Provided optimization consulting resulting in 30% reduction in production cycle time
Dayco Solutions
Dayco Solutions
CEO and Founder
July 2019 – Present

Founded home automation company delivering integrated smart solutions

  • Developed custom integrations for voice assistants and IoT ecosystems
  • Implemented control systems for 50+ high-value properties

Notable Projects

TRANSFORMATIVE SOLUTIONS WITH MEASURABLE RESULTS

BBOXX Marketplace
BBOXX Marketplace

E-commerce platform with integrated payment processing, identity verification, and real-time messaging

Visit Website
Pauseture Fitness Platform
Pauseture Fitness Platform

Mobile fitness application with audio workouts, offline capabilities, and personalized content

Platform Details
Soul Gym Learning Platform
Soul Gym Learning Platform

Educational app with content management and engagement features increasing retention by 65%

App Overview
Manufacturing Operations System
Manufacturing Operations System

Production management platform with inventory control reducing errors by 85%

Case Study
Construction ERP
Construction ERP

Project management system reducing administrative overhead by 40% for construction firm

System Overview

Professional Achievements 🏆

Technical certifications and community contributions

Harvard Logo
Harvard CS50 Certification

Completed intensive computer science program covering algorithms, data structures, and web development

Certification
SuperGrid Logo
Flutter SuperGrid Package

Open-source contribution used by 500+ applications worldwide

View on Pub.devGitHub Repository
NestJS Logo
NestJS Certification & Digital Transformation Leadership

Advanced backend architecture expertise and successful business transformation case study

Course Details

Let's Build Something Together ☎️

Available for new positions and consulting engagements

+52 55 3040 9333