Hire David Mascia

LinkedIn | Github

Professional Summary

David Mascia is a Senior Backend Engineer with 15+ years of experience architecting and scaling distributed systems. He specializes in high-throughput APIs, real-time communication, and cloud-native applications using Java 11, Python 3, Django, and Spring Boot. David has led engineering teams and modernized monolithic platforms into microservices, helping scale products from startup to acquisition.

Core Skills

  • Java 11 / Spring Boot
  • Python 3 / Django / Celery
  • Microservices & Distributed Systems
  • AWS & GCP Cloud Infrastructure
  • CI/CD with GitHub Actions & Docker
  • PostgreSQL / Redis / RabbitMQ
  • WebSockets & Real-time APIs
  • React / Next.js Frontend Integration
  • Node.js & Express.js
  • Native Mobile Application Integration

Recent Experience

Founder – Tech With Big D

Nov 2024 – Present | Keyport, NJ

  • Built serverless platforms using Java 11, Python, AWS Lambda & DynamoDB
  • Implemented GitHub Actions CI/CD with Docker and blue-green deployments

Lead Software Engineer – Volume Media

Aug 2022 – Nov 2024 | Remote

  • Led team building real-time video streaming with GCP Media CDN, Django & Redis
  • Developed scalable APIs and mobile backend integration for Kotlin and Swift apps

Lead Software Engineer, CardCash, inc (Acquired by RDE, Inc.)

Jul 2015 – Aug 2022 | Brick, NJ / Remote

  • Migrated monolithic PHP system to microservices (Java 8, Python, Docker, AWS)
  • Scaled revenue from $16M to $200M and led acquisition transition to RDE, Inc.

Senior Software Engineer, Scivantage, inc (Acquired by Refinitiv, Inc.)

Sept 2012 – Jul 2015 | Jersey City, NJ

  • Engineered a secure Single Sign-On (SSO) system using Java, PHP5, and Oracle to support 3M+ users, enabling seamless access across services and playing a pivotal role in a $120M acquisition.

Software Engineer, Beatmash, inc (Acquired by Digital Music Pool, LLC.)

July 2007 – Sept 2012 | Staten Island, NY

  • Built a low-latency streaming solution using PHP5 with AWS S3 and CloudFront, handling 1M+ daily downloads and improving throughput by 50%, significantly enhancing user experience and platform scalability.

Why Hire David?

David blends startup agility with enterprise-grade scalability. His work has driven performance gains of 60%, release velocity increases of 40%, and supported millions of users with secure, low-latency systems. He's ready to bring that experience to a high-impact engineering team.