Andrea Lissak.
Software Engineer
I build software across web, mobile, backend, computer vision and hardware.
Work
Yahoo Software Engineer· Nov 2020 – Apr 2026
750+ PRs across 60+ repositories
Stack: Java 17 · Spring Boot 3 · Hibernate/JPA · MySQL · Liquibase/Flyway · AWS Lambda/CloudFormation/S3/EMR/Glue/Redshift · Kafka · Docker/Rancher · Chef · JUnit · Cucumber · JaCoCo · GitHub Enterprise · Screwdriver CI/CD · GitHub Actions
Nomura Platform Engineering
More Projects
Project Factory Web · App publishing A browser control panel for creating and publishing small SvelteKit apps, managing prototypes, and connecting production domains. How it works
Scout Infrastructure · Static hosting The hosting bridge behind the web projects, connecting published GitHub builds to Firebase URLs. How it works
Map Web · Routes & journey timing A map experiment for saved routes, journey timing, and comparing your movement with a virtual pace setter.
University projects Archive · CS coursework Computer vision, population simulation, timetable optimisation, 3D graphics, games, and more.
Block Cipher AES-128 apps Swift · Encryption Client-side shortcuts that hook into the system to encrypt and decrypt text with AES-128.
Picture encrypter Swift · Image processing Turns pictures into noisy static artefacts with AES-128.
Kubernetes full-stack React · Java · Kubernetes A template app with a Java backend and React frontend, accessed directly through the server IP.
Cost-saving personal backend AWS · Node · MongoDB API gateway backend with MongoDB and Node EC2 auth, CloudFront static hosting, and CloudFormation + GitHub Actions infrastructure.
Serverless Chat Swift · Peer-to-peer Throwaway Firebase key hardcoded in the app wraps a more precious APNS key for notifications — a free way to have a chat app without running a server. How it works
Zero operating cost Contractor site tap in Google Apps Script A Google Sheets database with a static UI, running at zero operating cost.
Coffee chatbot Missing Python A bot crowdsourcing coffee deliveries through Symphony chat APIs. Built, but not hosted anywhere and without a repository anymore.
Knowledge-share chatbot Node.js · MySQL A full-stack project that routes questions to the right people.
Structured Notes Notes Notes taken via an iOS shortcut, keyed by their first word into a map, optionally encrypted locally, then persisted to a GitHub repo. How it works
Arduino Tic Tac Toe Arduino · Game Two Arduinos talk to each other through LDS light pulses and LED receptors, so two players can play tic tac toe over light. How it works
Send a message
Questions, ideas or opportunities — write to me.
Prefer email? Write directly to andrea.media.info@gmail.com.