Agent skills and source code
Start with the skills, workflows and working code behind Owain’s builds. Understand how they work and adapt them to your project.
Build and ship professional AI systems in 90 days.
Master agentic engineering, build complete projects and develop skills for your career, your business or paid client projects.
- Practical courses and complete projects to build alongside
- Reusable code and agent skills to help you move faster
- Expert support and a network of ambitious builders
$67/month or $397/year. Join anytime. Learn at your own pace.
- 20 years in engineering
- Systems used by millions
- Still building in production
Builders inside AI Engineer work at
Your 90-day path.
AI Engineer combines practical training, working code and expert help so you can take a project from idea to production deployment. Build throughout the program, then apply the process to a project of your own.
Agentic Engineer
Month 1
Master your coding-agent workflow.
Learn to direct Claude Code, Codex and other coding agents through planning, building, debugging, testing and deployment. Give agents the right context, review their work and develop a process you can repeat.
- Agent setup, Git and GitHub
- Specifications and project planning
- Context, skills and subagents
- Code review, testing and debugging
- Deployment and maintenance
Your goal: A working application and a development workflow you understand and can use again.
Build AI Systems
Month 2
Build complete systems that do useful work.
Design and build systems that connect AI models, data and tools. Follow complete builds, understand how the pieces fit together and adapt them to your needs. Learn how to check the results and run the system reliably.
- Models, APIs and structured outputs
- Agents, tools and integrations
- Retrieval and application data
- Automations and background jobs
- Evaluation, security and deployment
Your goal: A deployed AI system you can explain, test and adapt to a real problem.
Launch
Month 3
Launch your project. Put your skills to work.
Choose a useful problem, build your own solution and get group support as you finish. Get guidance on showcasing your work, developing your career and offering your skills to clients.
- Scope a manageable project
- Build, test and deploy your system
- Get feedback and work through blockers
- Present your project and decisions
- Plan your next career or freelance step
Your goal: A project you can demonstrate, a clear explanation of the result and a plan to put it to use.
This is a recommended path through the membership. Start anytime and work at your own pace. Both courses and the resources are available from day one, with group support throughout.
Build Together.
Learn by building complete AI systems and applications.
Inside AI Engineer, we regularly build complete projects you can follow from the first idea to working software. Get the source code, understand how it works and build your own version as you go.
You come away with software you can use or adapt, and the skills to build something of your own. Bring your questions to the community and weekly live Q&A when you need help.
Follow the complete build
Work through the design, code, testing and deployment. Understand the decisions along the way, including what went wrong and how it was fixed.
Get the working software
Use the source code and setup instructions to run the project yourself. See how the pieces fit together in a complete application.
Make it your own
Adapt the system to your business, use it as a starting point for client work, or apply what you have learned to an idea of your own.
A head start on your next project.
Move faster with the Resource Vault: reusable skills, working code, specifications and deployment resources from Owain’s own projects. Use them as a starting point, with guidance to make them your own.
Specifications and checklists
Give your next project a clear brief and use engineering checklists to work through what needs to be ready before you ship.
Deployment resources
Start from the deployment resources Owain uses and adapt them to the software you are building.
Expert help and a community to build with.
Weekly live Q&A
Every Wednesday at 4pm UK time. Bring technical questions and learn from what Owain and other members are building.
Expert clinics every two weeks
Get practical guidance on career development, client work, architecture and project blockers. Submit your questions and learn as Owain works through selected examples with the group.
Your professional network
Meet developers and ambitious builders, share your projects and exchange feedback. Build relationships with people putting these skills to work in their careers and businesses.
A process you can use again.
Define the work, give agents clear tasks, verify the result and ship. Learn from how the software behaves, improve it and use the same process on your next project. You stay responsible for the decisions and what reaches production.
- Design
- Plan
- Build
- Test
- Review
- Ship
- Improve
Already building with AI? Go deeper.
You use Claude Code, Codex or another coding agent and want to get better at building software. Whether you are self-taught, a developer or a technical consultant, this is a place to develop your skills through real projects, technical depth and practice.
Technical ambition matters
You might be a developer advancing your career, a technical consultant building for clients or a self-taught builder. You want to understand the architecture, code and decisions behind the result.
Be willing to go deeper
You enjoy the technical detail and make time to practise. You want to push coding agents further while developing your standards for design, testing and production reliability.
Learn with an engineer who keeps building.
I'm Owain Lewis, a full-time AI engineer with 20 years of professional software experience. I've worked as a principal engineer, manager and director, and launched multiple SaaS products.
As a Director of Engineering, I've coached hundreds of engineers, helping them grow their careers and operate large-scale cloud systems used by the biggest organisations in the world.
Today I use AI to build tools and software for my own business, and build production systems for clients through Gradientwork. AI Engineer is where I teach that process, share the resources behind the work and help you develop your own technical judgment.
I care about how a system works, why it is worth building and what happens after it ships.
Useful bonuses, included.
Put your engineering skills to work with clients using my consulting, proposal and delivery resources. You also get guides to the projects I share on YouTube.
The Client Proposal Template
Set out the scope of your next client project.
The structure I use to explain the problem, define deliverables and responsibilities, and present scope and pricing.
My AI Freelancer Stack
The system I use to run client projects.
The tools, templates and working setup I use to take an AI project from the first conversation through to delivery.
The AI Consulting Playbook
Learn to scope, price and deliver $10k AI projects.
Learn how I run $500+ AI consulting sessions, assess a business problem, define a focused scope and price the work. Use the playbook to work towards higher-value projects. This is a learning goal, not a promise of contracts or earnings.
Behind the Build
Go deeper than the YouTube video.
Get member-only guides and a behind-the-scenes look at the projects, tools and systems I share on YouTube.
One membership. Two ways to join.
Monthly and annual members get the same courses, group support, resources and community. Follow the 90-day path, then keep building with ongoing access for as long as your membership is active.
Monthly
$67/month
Pay month to month. Cancel whenever you need to.
Join monthly →Annual · best value
$397/year
Save $407 a year compared with paying monthly.
Join annually →Your membership
- The 90-day path: Agentic Engineer, Build AI Systems and Launch
- Build Together: complete projects to follow, use and adapt
- Weekly live Q&A, Wednesday at 4pm UK time
- Expert clinics every two weeks: career, business, architecture and projects
- A community for sharing work and getting help
- The Resource Vault: skills, code and checklists
Clinics cover selected member questions and projects so the whole group can learn. Submitting a project does not guarantee an individual review.
Bonuses included
- The Client Proposal Template
- My AI Freelancer Stack
- The AI Consulting Playbook
- Behind the Build guides
Your AI subscriptions, API usage and project hosting are separate costs. Review the checkout terms before joining.
Questions you might have.
How does the 90-day path work?
Month 1 uses Agentic Engineer to develop your coding-agent workflow. Month 2 uses Build AI Systems to connect models, data and tools in complete projects. In Month 3, Launch, you apply the process to your own project and get guidance on putting your skills to work. You build throughout all three stages. This is a recommended learning pace; your progress depends on your starting point, practice time and project scope.
What will I learn to build?
Software, AI agents and automations for your own business, your work or your clients. The courses teach you to design, build, test and deploy with coding agents. Build Together gives you complete projects to follow, use and adapt as you develop those skills.
Do I need to be a software engineer to join?
No. AI Engineer is for developers, technical consultants and self-taught builders who want to become more capable engineers. You do not need a traditional engineering background. You do need an appetite for technical depth and a willingness to work with code, tests and debugging. Start with the coding-agent workflow and develop the foundations as you build.
What happens in the expert clinics?
Live clinics run every two weeks, rotating between career guidance, client work, architecture reviews and project help. Bring a question, a design or a problem you are working through. Owain selects examples the whole group can learn from. The weekly technical Q&A continues alongside these clinics.
What happens in the weekly live Q&A?
Every Wednesday at 4pm UK time, Owain shares what he is working on, answers questions and talks through the latest AI technology. The group learns from the work and questions together.
Which courses are available now?
Agentic Engineer and Build AI Systems are both available now. Start with a repeatable approach to building software with coding agents, then apply it to AI systems with agents, tools, retrieval, testing and deployment. Both courses are self-paced and included in your membership. Launch is the practical project stage, supported by the resources, clinics and community.
Is AI Engineer a cohort?
No. Join at any time and access both courses and the resources immediately. Follow the recommended 90-day path at your own pace, with group support throughout. Experienced members can move ahead to the material most relevant to their projects.
What happens after the first 90 days?
Keep building with the courses, resources, community and live sessions for as long as your membership is active. Annual membership gives you twelve months of access; monthly membership continues while subscribed. The 90-day path is a learning structure, not an access limit.
Do I need my own project idea?
No. Follow a Build Together project and use the source code as your starting point. Work through the design and implementation, then adapt the software to a problem you care about. You can also bring an existing project and apply the course material to it.
Will my project be reviewed on a live call?
You can submit projects and questions for the expert clinics. Owain selects work the group can learn from, including architecture decisions, bugs and deployment problems. Submission does not guarantee an individual review. You can also bring technical questions to the weekly Q&A and community.
I am already an experienced engineer. Is there real depth?
The focus is engineering judgment: what to delegate, how to structure the work, and how to review, test and deploy the result. Build AI Systems applies that workflow to agents, tools, retrieval, evaluations, observability and failure handling. Bring questions from your own projects to the community and live sessions.
Which coding tools does this cover?
Claude Code, Codex and other coding agents. You learn to design the work, give agents useful context, plan tasks, inspect the output and validate what ships. Apply that process with the tools that suit your project.
What is Build Together?
Build Together is the project series included in AI Engineer. We regularly build complete AI systems and applications you can follow along with. You get source code, setup instructions and explanations of the decisions, so you can run the software and adapt it to your own needs. Bring questions to the community or weekly Q&A as you work through it.
How much time should I set aside?
The courses are self-paced, so you can fit them around work and other commitments. Set aside regular time to apply what you learn, then bring your questions to the community, weekly Q&A or expert clinics. The 90-day path assumes regular practice; allow more time if you need extra foundations or choose a larger project.
Put your next 90 days to work.
Master coding agents, build complete AI systems and launch a project of your own. Get the courses, working code and expert support to take your next step.
$67/month or $397/year. Same courses, resources and group support.
Questions? owain@gradientwork.com