Senior Product & Systems Engineer

Derrick Hammer

I help teams solve difficult technical problems when the path forward isn't obvious.

I take ownership of hard backend, infrastructure, storage, integration, and web-system problems, from figuring out what's actually wrong to getting a sane solution into production.

I'm most useful when a team is blocked, overloaded, or dealing with a problem that has crossed outside its normal comfort zone.

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Selected work

Pinner

I build and maintain Pinner, an IPFS storage and static hosting service. The work spans backend services, the web product, developer tooling, deployment infrastructure, and the systems behind storing and serving data.

Go · TypeScript · IPFS

Live Source

Capabilities

Where I'm most useful

Hard Problems & Debugging
Something important is failing and the obvious fixes haven't worked.
Backend & Infrastructure
A service, deployment, storage or infrastructure problem needs someone who can follow it across boundaries.
Integrations
Systems need to talk to each other and the real-world APIs, auth or data flows aren't behaving like the documentation suggests.
Complex Web Systems
Problems where application code, hosting, performance, and infrastructure interact in ways that make the root cause hard to isolate.

Tools & Technologies

Current: Go · TypeScript · Linux · Docker · Kubernetes · Virtualization · IPFS
Background: PHP · WordPress

Open Source

Public code

LumeWeb Portal

A modular Go backend framework with pluggable protocols, workflow orchestration, APIs, authentication, observability, and storage services.

Go · Backend · Infrastructure · StorageSource

LumeWeb Web Platform

A TypeScript and React framework for modular web apps, shared tooling, plugins, SDKs, and independently deployed frontend features.

TypeScript · React · Frontend · PlatformSource

Rocket Footer JS

Historical WordPress performance tooling for script optimization, lazy loading, caching, and compatibility across plugins, themes, and third-party services.

PHP · WordPress · Web Performance · HistoricalSource

I've worked across a lot of the stack

I've spent more than 15 years building and debugging software across web applications, backend systems, infrastructure, hosting, performance, and integrations. I started in PHP and WordPress, then gradually moved into backend systems, storage, infrastructure, Go, and TypeScript.

Today I'm mostly focused on backend systems, infrastructure, storage, agentic systems, developer tooling, and complex web applications. I tend to be most useful when a problem doesn't fit neatly in one box and someone needs to follow it wherever it leads.

Available for engineering work

Stuck on a hard technical problem?

If something is stuck and you need senior help figuring out what is actually wrong, I'm available for focused engineering work across backend systems, infrastructure, integrations, storage, and complex web applications.

solution@derrickhammer.com