HackEurope
October 2026 - PresentSoftware Engineer
Software Engineer · Ireland
Tom Byrne.
Experience
Susquehanna International Group
June 2026 - August 2026Software Engineer Intern
Amazon Web Services
September 2025 - December 2025Software Engineer Intern
Stripe
June 2025 - August 2025Software Engineer Intern
Kepri Solar
February 2025 - May 2025Co-Founder
HackEurope
October 2026 - PresentSoftware Engineer
- Building the platform powering Europe's largest hackathon, a 1,000-person event across Dublin, Paris, and Stockholm.
Susquehanna International Group
June 2026 - August 2026Software Engineer Intern
- Built a C#/.NET API on the Trading Operations and Risk Services team that consumes trader PnL data from Apache Kafka, giving teams across organisations programmatic access to PnL data previously only available in a UI.
- Implemented last-modified caching so clients polling the API only receive new data when PnL has actually changed.
- Collaborated with engineers and traders across separate organisations to shape the API around their use cases.
- Built a co-activation heatmap and graph as part of an internal hackathon that flags DAX stocks moving multiple standard deviations from their DAX-normalised industry peers as mean-reversion buy/sell signals.
Amazon Web Services
September 2025 - December 2025Software Engineer Intern
- Built an LLM-powered tool for the Lambda Control Plane Functions team that categorised a 600+ ticket backlog and surfaced customer-impacting issues via a category heatmap, helping cut the backlog by 21%.
- Wrote a Python CLI that analyses tickets in bulk using AWS Bedrock with an agentic loop using an internal MCP server to investigate tickets, generating summary documents for engineers.
- Shipped a TypeScript/React app with a Lambda backend to label tickets and visualise categories across the backlog.
Stripe
June 2025 - August 2025Software Engineer Intern
- Built tooling on the Test Data Infrastructure team to copy live merchant configuration into the QA environment, recreating merchants through Stripe's internal Scenarios tool and reducing reliance on production-based testing.
- Designed an end-to-end pipeline using Ruby and SQL to collect metadata, S3 for intermediate storage, and Java workflows with gRPC APIs to reconstruct merchants in QA.
- Built a reusable Slack message builder for an integration that notifies engineers when the asynchronous merchant-recreation workflow completes and lets them view or delete the new merchant.
- Cut RPC calls by 90% in Scenarios by replacing sequential per-merchant operations with new bulk update steps.
Kepri Solar
February 2025 - May 2025Co-Founder
- Designed a frontend web-application for displaying live solar panel inverter statistics and financial information for a cloud-based energy management system, utilising Next JS, TypeScript, and Supabase.
- Worked as part of a team of 5, worked closely with potential customers, and participated in the Spring 2025 NDRC Pre-Accelerator. Project featured in Business Post 2024 Ireland's 30u30 article.