01
Web builds from Figma
React and Next.js sites, platforms and dashboards, built from your designs and faithful to them.
Jack Miro / Agency development partner
Senior engineering capacity for agencies and studios, without adding permanent headcount. Web, mobile and AI delivery, under your brand.
- Delivered for
- Vodafone Deloitte Tellspec
- Founder
- Mirox
Engineering capacity for agencies, without adding permanent headcount. You win the project; I help you deliver it.
01 / Who I work with
Your team,extended.
Agencies and studios that sell great work and need senior engineering to deliver it, without hiring for every project.
- Design agencies
- Branding agencies
- UX/UI studios
- Marketing agencies
- Software agencies
- Product studios
- Consultancies
What I take on
02
Mobile apps
React Native apps for iOS and Android, including native integrations and Bluetooth devices.
03
Backend & APIs
Node.js and Python backends, databases, and integrations with the services your client already uses.
04
AI features
LLM integrations, AI agents, search over your client's own data and automation, built to work in production.
05
Rescue & takeover
Late or inherited projects: I get them stable, finished and shipped.
06
Technical partner
Estimates before you quote, architecture decisions, and client calls when a senior technical voice helps.
02 / How it works
Fits yourprocess.
I work the way your team already works. I can stay invisible to your client, or join them on calls.
Working with your team
- Work directly from your Figma files
- Talk to your project managers in your tools
- Join client calls when it helps
- Help estimate the work before you quote
- Handle frontend, backend and mobile
- Deploy and hand over production systems
- Under your brand, or invisible white-label
A good fit when
- Your developers are overloaded
- You've won a project outside your usual technical range
- You need a senior engineer for a few months, not forever
- You need React Native or mobile expertise
- You need AI built properly, not just demoed
- A project is late and needs finishing
- You need someone who owns delivery on their own
03 / Case studies
Shipped.In production.
The same engineer your client's project gets. Three cases: Bluetooth hardware, multi-agent AI and enterprise scale.
Tellspec
Mobile apps that drive spectroscopy sensors over Bluetooth.
5products shipped across mobile, web and clinical
Tellspec's handheld NIR sensors analyse food and milk. I built the apps that pair with them, run the scans and turn raw spectra into results.
Mirox
A multi-agent AI platform for Amazon ads, built end to end.
16specialist AI agents orchestrated in production
Sellers lose hours tuning PPC bids by hand. In Mirox, specialist AI agents analyse the campaigns and recommend every bid, with the reasoning shown.
Vodafone
Campaign apps for hundreds of thousands of Vodafone customers.
100k+users on the Vodafone campaigns I built
Seasonal campaigns that reach a huge customer base on launch day, on every kind of phone, inside an enterprise release process.
04 / Ways to work together
Per project,or ongoing.
Start with one project. If it works, keep a senior engineer on call for the next ones.
Per project
From€5k
A scoped build delivered end to end under your brand: estimate, build, launch and handover.
Ongoing capacity
BilledMonthly
Senior engineering reserved for your pipeline, month to month, for agencies with steady work.
A proper B2B contract, invoiced by Mirox, Lda. from Portugal · VAT PT517994160 · reverse charge for EU agencies.
05 / Contact
Won a project?Let's deliver it.
Tell me about your agency and the work in your pipeline. I'll tell you honestly where I can help, and where I can't.
White-label · Projects from €5k · Remote worldwide