Fractional CTO & plug-in engineers
Senior technical leadership, working inside your team.
A fractional CTO plus one or two senior engineers who plug into your repo. We take on hiring, scoping, and the quality bar, and your engineers get the lift too.
- Fractional CTO
- 1–2 senior engineers
- Works in your repo
Why teams bring us in
Running the engineers is its own job.
Hiring, scoping, and holding a quality bar land on whoever can least afford the hours
The demo works and the first users are real, and production is turning out to be a second product
Reliability, permissions, and a cost curve that only shows up under load need someone to own them
AI-assisted work is shipping faster than anyone on the team can review it
What you get
Leadership and senior hands, in one engagement.
Fractional CTO
Joseph takes on the technical leadership your team is missing, so the founder can get back to the product and the customers.
- Hiring and the shape of the team
- Scoping and technical priorities
- A quality bar the team can hold
- Review practices for AI-assisted work
Plug-in senior engineers
One or two senior engineers join your repo, tools, and routines, and ship alongside the people you already have.
- Work lands through your repo and review process
- Access on your terms: NDA first, read-only or a fork to start
- Your engineers pick up the same working habits
How it starts
Sketch how we'd slot in, then start small.
Intro call
A 30-minute call about your product, your team, and where technical leadership time is short.
A plan for how we slot in
We sketch which responsibilities we take on, who joins, and how their work fits your process. You keep the plan either way.
Work starts in your environment
Once the plan and the NDA are in place, we start with the access you choose and build from there.
Ideal for
For startups whose product is outgrowing the team's time.
Founders of AI or SaaS startups taking a working product to production
Small teams that need senior technical leadership without a full-time hire
Teams using AI coding tools that want a review bar around them
Your fractional CTO
Joseph Arrieta
CTO and lead systems architect roles on products in HR analytics, healthcare, recruiting, and retail
Architectures he designed are still running after more than ten years in production
As fractional CTO for a recruiting platform, took it from almost-weekly outages to 99.9% availability in its first year. Read the case
See how we work before you hire us: our OwlRay build log is public. Open the build log
Talk through your team.
Pick a time for a 30-minute intro call. We'll talk through your product and team and sketch how we'd slot in. It's free, and you keep the plan.