Job Title: [For Hire] Swift/macOS + AI systems developer — prototypes, agent tooling, API integrations, and technical writing
About Me
I’m Tim, an independent AI systems engineer, Swift/macOS developer, and technical writer. I’m available for focused development engagements where the product needs both sound implementation and clear technical communication.
Recent Engineering Work
- AgencyRuntime: A Swift runtime for agent workflows, with typed state, content-addressable references, execution boundaries, contexts, and nested transcripts.
- AgencyStudio: A native macOS environment for building and running agentic systems.
- Responses: A Swift client for OpenAI’s Responses API, including streaming with
AsyncSequence, typed tool calls, JSON Schema generation, and strict-concurrency support.
I am a good fit for:
- Swift or native macOS prototypes, internal tools, and product features
- AI/LLM integrations, agent infrastructure, and technical feasibility work
- API or SDK integrations with a working reference implementation
- Developer tools, sample projects, quickstarts, and integration guides
- Technical articles or documentation that require both understanding and running sample code
Background
My recent engineering portfolio comes from independent product development. My commercial freelance record is strongest in technical content, with work for teams including Capital One Tech, Veeam, monday.com, and Dribbble. Earlier systems roles gave me hands-on experience with production support, databases, ERP systems, and web operations.
Compensation
- Rate: $60/hour for development, or fixed-price milestones for well-defined work.
- Project Minimums: Focused development projects generally start at $750; writing and documentation projects generally start at $500.
How to Apply
If the work sounds aligned, send me a reddit message with the problem, current stack, desired outcome, and approximate scope. I’ll tell you candidly whether I’m a fit and suggest a sensible first milestone.