Lee Goymer

Software Engineer · Backend, prototyping & applied AI · Former Amazon SDE

Brisbane, Australia · LMGoymer@gmail.com · linkedin.com/in/lee-goymer

Profile

Software engineer with Amazon delivery experience and independently built systems used by an external community. I design APIs and automation, investigate technical constraints, and turn prototypes into tested services. Recent work includes GPU resource scheduling, scientific image analysis, and quality-controlled video processing. I am looking for hands-on engineering work with clear priorities and room to investigate, design, and test solutions.

Technical skills

Core: Python, Java, SQL, Linux, Git, HTTP APIs, automated testing. Backend & integration: FastAPI, Flask, PostgreSQL, SQLite, RabbitMQ, OAuth2, webhooks, nginx, systemd; TypeScript/JavaScript and C#/.NET experience. Applied AI & measurement: local model inference, evaluation design, held-out validation, GPU resource management, image/video processing.

Engineering experience

Independent software engineering & R&D — personal projects · Jan 2025 – present, Brisbane

Built and operate a constraint-aware scheduler for one RTX 3090: a durable 24-hour plan, dispatch against observed free memory, and checkpoint-based park/thaw. After its 28 August 2026 rollout, 2,771 of 2,835 deadline jobs finished on time.
Built a CT-only skeletal-deduction pipeline (no atlas, no learned weights). On public CC0 micro-CT scans it explains a median 96% of labelled bone; vertebra counting is not yet reliable.
Built a restart-safe video-processing service with independent output verification: 112 accepted outputs fell from 6.87 GB to 2.55 GB (62.9%), all within the recomputed quality contract.
Operate a Linux AI platform with off-site backups and alerting; corrected an inflated model-evaluation result after held-out validation exposed in-sample bias.

Backend engineer — independent community-platform engagement · 2023 – 2025

Built and operated Python services for a modded-Minecraft community spanning roughly forty public servers for about two years; partnered with the frontend developer and handed services over when the engagement concluded.
Integrated Stripe sponsorship, Discord authorization, and queued voting rewards; preserved the last usable server list during upstream failures and published regenerated pages using atomic file replacement.

Software Development Engineer — Amazon (Amazon Fresh) · Jul 2022 – Mar 2023, Brisbane

Built and operated services that ingested, triaged, and routed failed-delivery, late-delivery, and order-issue events across the US Amazon Fresh network.
Contributed to migrating the legacy remediation system onto a newer internal platform.
Updated refund-eligibility edge cases in a large legacy Java codebase, enabling legitimate customer refunds that had previously been auto-rejected.
Participated in on-call, system-health improvements, code reviews, intern onboarding, and mentoring; contributed to early planning for a freight-logistics system.

Technical Analyst — Service Potential · Jul 2020 – Jan 2021, Canberra

Software Developer (university placement) — RightCrowd · 2019, Gold Coast

Led development of a security web API framework and companion mobile app using Azure, .NET, Python, and SQL.

Digital Security Research Assistant — Griffith University IIIS · 2017 – 2019, two paid internships

Researched formal verification of Solidity smart contracts using CSP#/PAT; investigated security properties of a hypothetical trading platform.

Additional work

Automotive retail, dealer operations & media · 2025 – present, part-time — photography, inventory/listing operations, and data automation.

Cloud Network Engineer — PCCW Global · 2024, short engagement — carrier cloud-network configuration. Other work during the post-Amazon transition included disability-support care.

Education

B.Sc Computer Science — Griffith University · Graduated Feb 2020 · GPA 5.8/7

Selected security experience: top national first-year-team result in CySCA; fintech penetration-testing engagement with Entersoft, Hong Kong (Hackfest 2018).