Jack Gisel

Work Experience

Full stack engineer with a passion for building scalable systems and great user experiences.

Apple

Full Stack Engineer

Full-time
Mar 2025 - Present San Diego, California

Ridgeline

Senior Software Engineer

Full-time
Aug 2023 - Mar 2025 Incline Village, Nevada
  • Architected a horizontally scalable real time pricing system that could process billions of price ticks. Built with Redis, AWS ECS and Kotlin
  • Implemented a meta programming version of security master in Kotlin, allowing highly unique asset classes
  • Built a re-usable service migration tool that provided: user based routing, shadow traffic, data validation and data migration
  • Lead a full service rewrite of our key data providing services, researching and providing the architecture for a new technology stack
  • Provided guidance around infrastructure and system design around my organization to better the design of microservices

Product Engineer II

Full-time
Jan 2022 - Aug 2023 Incline Village, Nevada
  • Worked on the central data service team, focused on ingesting, processing and distributing market data throughout the entire application
  • Upgraded Python (3.7 -> 3.11) and Terraform of 11 micro-services
  • Lead the devops ownership of my team's 11 micro-services, ranging from Lambda, ECS, Redis, S3, State machines, and ELBs
  • Played a key piece in organization by providing design reviews, mentoring newer members and interviewing
Java Python Javascript React Lambda Postgres DynamoDB RDS S3 State Machines Terraform

Product Engineer

Full-time
Jul 2021 - Jan 2022 Incline Village, Nevada
  • Developed a key feature that was highly requested from users to bring together all their data and aggregate in new ways, which was integrated by many downstream services
  • Refactored a key piece of cloud infrastructure, by leveraging IAC in Terraform and AWS constructs to prevent unnecessary compute netting a savings of roughly $20,000/m
Python Javascript React Lambda DynamoDB RDS S3 State Machines Terraform

Brandwise

Co-Founder

Startup
Nov 2022 - Sep 2023
  • Co-founded MVP of social media management via AI
  • Built MVP using: Next.js, Go, GCP, OpenAI

Ascend

Full Stack Engineer

Full-time
Oct 2019 - Mar 2021 San Jose, CA (Remote)
  • Built a mobile app focused on consumer debt payoff using React Native, AWS Lambda, Firebase, and ExpressJS
  • Developed an algorithm for debt payoff, saving users on average $2,210.98 by using performant data structures
  • Constructed actionable screens with data visualization to aid in the understanding of personal finance
  • Integrated an application monitoring and session replay system capturing over 90 bugs, helping our team develop quicker and more focused

Nexus

Full Stack Engineer

Contract
Apr 2020 - Feb 2021 Remote
  • Created the mobile and web app for a growing social networking company by using NextJS, React, React Native, and TypeScript
  • Independently designed and built a highly scalable architecture with an average cost per user of $0.0005/m through NoSQL and serverless functions
  • Implemented NFC protocol to efficiently share profile data between users by leveraging Universal Linking
  • Rebuilt the Shopify ecommerce landing page boosting load speed 19% by using Bootstrap, SCSS, and vanilla Javascript

Education

San José State University

Bachelor of Science - BS, Software Engineering

Aug 2017 - May 2021

Clubs: Hoplite, Computer Science Club, Software & Computer Engineering Club, Rock Climbing Club

freeCodeCamp

Frontend Web Development Certification

2016 - 2018

Online resource to learn web development and participate in the open source community

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