Tom Depplito

Software Engineering Leader

About

Tom Depplito

Business-minded engineering leader with over 13 years of experience in ad tech, including more than 7 years in management roles. Built and led multiple cross-functional engineering teams, including back-end, front-end, devops, data engineering, data science, and machine learning disciplines. Proven track record of architecting scalable, mission-critical systems that handle millions of requests per minute, significantly contributing to two successful exits.

Career

Jun Group

(Acquired by Verve in 2024)

Jun 2014 - Present

Vice President of Data and Machine Learning

Jan 2022 - Present

  • Founded and grew data team from a single engineer to a 7 person team composed of machine learning engineers, data engineers, data scientists, and full-stack software engineers
  • Launched audience targeting service to ingest and store audience segments for billions of users, reducing ad server latency by over 10%
  • Spearheaded adoption of Generative AI by integrating LLMs into internal workflows for social media sentiment analysis and web content categorization to increase user ad engagement
  • Technologies: Elixir/Phoenix, Python, Airflow, BigQuery, AWS RDS (MySQL/Postgres), S3, SQS, Elastic Container Service, Fargate, Ray.io

Associate Vice President of Software Development

Jan 2020 - Jan 2022

  • Scaled Jun Group’s ad server to over 1MM requests per minute, maintaining a P99 response time below 200ms
  • Launched Vera, a machine learning platform responsible for optimizing delivery across all of Jun Group’s ad campaigns
  • Led cloud cost reduction initiatives on AWS and GCP, consistently decreasing expenses through architecture changes and committed use discounts
  • Led technical due diligence for M&A activities, influencing decisions on acquisitions worth over $50 million
  • Ensured SOX compliance by developing systems for revenue recognition and participating in audits
  • Technologies: JRuby on Rails, Vue.js, Node.js, GraphQL, AWS RDS (MySQL/Postgres), ElastiCache (Redis), Elastic Beanstalk, S3, SQS, SNS, TFX

Director of Server Software Development

Jan 2019 - Jan 2020

  • Expanded team from 4 to 9 engineers, overhauling hiring and onboarding; promoted 2 engineers to senior roles
  • Launched Managed+, a B2B SAAS application adopted by hundreds of web publishers, driving tens of millions of page views per day
  • Maintained 99.9% uptime for all applications by implementing a multi-tier on-call rotation using PagerDuty and integrated monitoring tools
  • Technologies: JRuby on Rails, Vue.js, Node.js, GraphQL, AWS RDS (MySQL), ElastiCache (Redis), Elastic Beanstalk, S3, SQS, SNS

Software Architect

Jun 2017 - Jan 2019

  • Led team of 2 engineers developing a streaming ETL framework to process over 15,000 messages per second
  • Migrated all business critical analytics workloads from MySQL to BigQuery, reducing query times by as much as 1000%
  • Developed systems to maintain compliance with current and future data privacy laws including COPPA, GDPR, and CCPA
  • Technologies: Java, Apache Beam, JRuby on Rails, AWS RDS (MySQL), Google Dataflow, Pub/Sub, BigQuery

Senior Software Developer

Jun 2014 - Jun 2017

  • Architected and developed web app for HyprMediate, a rewarded video ad mediation platform integrated into over 100 of the most popular Android and iOS apps
  • Collaborated with 1 full-stack engineer, 2 mobile engineers, QA, Product, and Business Development teams to successfully launch HyprMediate, and onboard initial partners
  • Mentored and provided code review for junior engineers
  • Technologies: Scala, Play, AngularJS, Postgres, Heroku

Tapjoy

(Acquired by IronSource in 2022)

Sept 2012 - Apr 2014

Software Engineer

Sept 2012 - Apr 2014

  • Developed a risk management framework using Ruby that blocked over $1MM in ad fraud
  • Supported Tapjoy’s entry into the Asia-Pacific market by rewriting payment processing logic to support third-party app stores and fractional penny transactions
  • Responsible for responding to operational incidents and other high priority issues affecting production services as a member of Tapjoy’s SWAT team
  • Technologies: Ruby on Rails, MySQL, Riak, Redis, EC2

Electrical Engineering Career

May 2010 - Jun 2012

Electrical Engineer

May 2010 - Jun 2012

  • Designed power distribution and electrical control systems for several companies in New York and Pennsylvania

Skills

Programming Languages

  • Ruby/JRuby
  • Python
  • Java
  • Scala
  • Elixir
  • JavaScript

Data Stores

  • MySQL
  • PostgreSQL
  • Redis
  • BigQuery
  • Riak

Libraries & Frameworks

  • Ruby on Rails
  • Apollo GraphQL (Ruby)
  • Sidekiq
  • Apache Beam (Java)
  • Phoenix (Elixir)
  • Express.js
  • Flask
  • Airflow
  • Ollama
  • AngularJS
  • Vue.js
  • React
  • Ray.io
  • Play (Scala)
  • Akka (Scala)

AWS

  • ECS
  • Fargate
  • RDS
  • ElastiCache
  • DynamoDB
  • DMS
  • S3
  • SQS
  • SNS
  • ALB/ELB
  • Lambda
  • Elastic Beanstalk

Google Cloud Platform

  • BigQuery
  • Pub/Sub
  • Dataflow
  • Cloud Storage
  • Cloud Functions
  • Cloud Composer
  • Cloud Run
  • Cloud SQL
  • Vertex AI