Software Engineer · Manchester, UK
3rd place, AWS Trainium Frontier Competition (1st in Round 1) · 1st in the qualifiers, AMD × GPU MODE E2E Model Speedrun
DataHub contributor · MSc Advanced CS, University of Manchester
I work on ML training and inference performance, and I build systems that check their own work: deterministic simulations with server-side replay, allocation stress-tested for zero oversell, agent output gated by linters and real browsers. Previously at Energy Web and AAK Tele-Science. Open to software engineering and ML performance roles in the UK.
| Name | What I built | Stack | Links |
|---|---|---|---|
| AWS Trainium Frontier Competition | Training a language model from random weights on Trainium2 chips inside a fixed time budget. 3rd overall of 100 teams, and 1st in Round 1. Round 1 (1 chip, 30 minutes): 0.9328 bits per byte, with throughput up from about 42k to 340k tokens a second, mostly from custom NKI kernels (attention, the loss head, fused elementwise blocks) and fp8 matmuls. Round 2 (16 chips, 4 hours): a 3.68B-parameter mixture-of-experts model (0.71B active per token), step time down from the kit's 2.41 s to 0.86 s, and the lowest validation loss of the ten finalists. | NKI · Neuron SDK · PyTorch · Python | Repo |
| AMD × GPU MODE E2E Model Speedrun | Qualifiers: 1st overall, with a fused MoE kernel at 69.9 µs geomean on the MXFP4 track. Finals: DeepSeek-R1 serving on 4x MI355X, time per output token down from 6.30 ms to 5.64 ms, 2 of 4 gates passed. | Triton · ROCm/HIP · AITER · FlyDSL · Python | Kernels · Finals |
Contributor to DataHub (12k+ stars), the open-source metadata platform. Designed and shipped incident support for ML entities and keyless Snowflake authentication, with 8 PRs merged and 2 approved across the metadata model, GraphQL API, React UI and Python ingestion connectors.
| Status | Contribution |
|---|---|
| Accepted | RFC #18911: per-layer analysis of how entity support drifts, adopted as the maintainers' "gates" roadmap model |
| Merged | #19112 · #19132 · #19367: incident support for ML models, features and feature tables across the metadata model, GraphQL API, authorization policies, React UI and MCP tooling |
| Merged | #19889: keyless Snowflake login through workload identity federation, so ingestion on AWS, Azure or GCP uses its own cloud identity and stores no password or key. Verified live on AWS |
| Merged | #19539: a single undecryptable secret no longer fails the whole batch, backported by maintainers into the v1.6.0.3 release |
| Merged | #19540: structured property values containing a URN no longer crash the entity page |
| Merged | #19278 · #19537: a CI flake fix and API docs corrections |
| Approved | #19627: health status for ML entities across lineage, search and entity pages |
| Approved | #19879: platform instance support for Superset and Preset dashboards, charts and datasets |
| In review | #19629: a CI test that fails when incident support disagrees between the write, summary and GraphQL read layers, picked up at a maintainer's request |
| In review | #19535 · #19536: deterministic replacements for two timing-based CI tests, root-caused from CI logs |
Maintainer, on closing the RFC: "We now have full support for incidents on these 3 entities across data model, API, UI, and MCP."
Snowflake auth maintainer, approving #19889: "I broke each new guard on purpose again [...], and a test caught every one."
Maintainer, approving #19540: "nice fix and a really clear writeup."
| Name | What I built | Stack | Links |
|---|---|---|---|
| CivicNexus | Governed agent fleet for municipal permit casework. Four agents on Vertex AI read the application, retrieve the municipal code, and draft a determination whose every quote is byte-checked against the committed statute. Email to human gate in about 62 seconds. Attachments are OCR'd and re-screened before any model sees them, and only a named human can issue a permit, enforced by a write-once approval row. | Vertex AI Agent Engine · ADK · Gemini · Gemma · Cloud Run · Terraform | Live · Repo |
| Blast Radius | ML supply-chain agent on the DataHub metadata graph. Finds every model in the blast radius of an upstream schema change, files evidence-backed incidents, opens dbt-validated fix PRs, and blocks bad deploys through a CI circuit breaker. Building this surfaced the gap behind the RFC above. | Python · DataHub · MCP · dbt | Repo |
| Singleton | No-oversell allocation of scarce slots. Sharded counters under optimistic concurrency and a commit-reveal lottery anyone can re-verify in the browser. 10,000 concurrent claims on a 200-slot release, zero oversold. | Aurora DSQL · Next.js 15 · TypeScript · Vercel | Live |
| GPTDesign | Design-system-locked UI generation for coding agents. A deterministic token-drift linter hard-rejects off-system output, a sight loop has the model inspect its own render, and a Playwright gate clicks every tab, dialog and button before a run passes. 880+ tests. | TypeScript · Fastify · Playwright · MCP · SSE | Repo |
| Precedent | Decision-memory agent for Slack. Extracts decisions from threads with confidence gating, keeps a forward-only supersession history, and answers "what did we decide about X?" with source-thread receipts. Exposed as an MCP server. | Slack Bolt · Claude · MCP · SQLite · Railway | Live · Repo |
| underVault | Asymmetric-knowledge roguelike on Reddit. One shared dungeon, one life a day, rules hidden from you and learnable only from other players' corpses. Integer-only deterministic simulation with server-side replay validation. | Devvit · Phaser · Hono · Redis | Repo |
Earlier projects
| Name | What I built | Stack | Links |
|---|---|---|---|
| Web Information Decay | Quantifying the degradation of web archival quality across modern platform architectures | Python · Playwright · Wayback Machine | Repo |
| Ethereum Charts | Real-time chain analytics dashboard | React · Web3.js · D3 | Live |
| Proxy Wallet | Gas-optimised smart wallet with guardian recovery | Solidity · Hardhat · ethers.js | Live |
Languages TypeScript · JavaScript · Python · SQL · Solidity
ML performance NKI (AWS Trainium) · Triton · ROCm/HIP · FP8 and MXFP4 · PyTorch
Backend Node.js · Fastify · Express · FastAPI · GraphQL · REST · WebSockets
Data PostgreSQL · Aurora DSQL · Redis · MongoDB
AI & agents LLM APIs (OpenAI, Anthropic) · MCP servers · agent evals · Playwright automation
Frontend React · Next.js · Tailwind CSS
Cloud & DevOps AWS · Docker · Kubernetes · Terraform · GitHub Actions