Hi, I'm

Peter Mark

Senior Software Engineer

7+ years building scalable distributed systems. Java · AWS · Microservices.

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Peter Mark on a mountain summit

Experience

  • Senior Software Engineer — FIS

    June 2025 – July 2025
    • Authored documentation to detect and mitigate model bias and improve explainability using Amazon SageMaker.
    • Optimized alarm configurations to increase system reliability and interpretability in fraud detection pipelines.

  • Software Engineer II — Amazon

    July 2022 – April 2025
    • Led HLD/LLD reviews with 20+ engineers for architecture alignment of seller-facing shipment tracker systems.
    • Designed and implemented Kotlin-based microservices managing digital shipping assets (labels, manifests).
    • Optimized carton label assignment API, reducing latency by 16× (5s → 300ms) through AWS S3 fetch optimization.

  • Software Engineer I — Amazon

    August 2020 – July 2022
    • Designed and delivered Java-based recommendation service for pallet creation to improve warehouse efficiency.
    • Completed AWS service with 100% unit test coverage and robust integration tests ahead of schedule.
    • Led major refactor improving maintainability and enabling future feature development across stow services.

  • Software Engineer — Ciena

    September 2017 – June 2020
    • Conducted runtime analysis and performance tuning, decreasing overall runtime by 30%.
    • Delivered full lifecycle features for platform services within distributed networking systems.

Education

B.Eng, Software Engineering

May 2017

Carleton University, Ottawa, Ontario

  • Capstone Project: Autonomous Smart Home utilizing Machine Learning for adaptive behavior learning.
  • Carleton Engineering Entrance Scholarship — $4,000 awarded for academic excellence.

Technical Skills

Languages
Java Kotlin Python Go
Cloud & Infrastructure
AWS S3 EC2 ECS Lambda DynamoDB Docker Kubernetes Terraform
Messaging & Streaming
Kafka SQS Kinesis
Databases
MySQL DynamoDB Redis
Tools
Git GitHub JIRA CI/CD Pipelines
Methodologies
Agile Scrum Test-Driven Development Distributed Systems

Projects

  • Screenshot of petermark.dev personal portfolio website

    Personal Website

    This portfolio site. Built with HTML5 Boilerplate and Webpack — no frameworks, just semantic HTML, vanilla JS, and CSS custom properties.

    • HTML
    • CSS
    • JavaScript
    • Webpack
    GitHub Live Site

When I'm not coding...

🏒 Hockey 🃏 Poker 🥾 Hiking ⛷️ Skiing 🎮 Gaming 📚 Brandon Sanderson Books

Leadership

  • Mentored interns and new hires; mentees received offers or promotions within one year.
  • Served as Scrum Master, leading sprint planning and driving Agile processes.
  • Communicated complex technical topics effectively through demos and documentation.