Product Engineering, AI Workflow and CMS Migration Services
Flex Solutions runs eight product engineering services, grouped into three practices: development, AI workflow, and migration. Every engagement runs the same five-step shape, whether you need a SaaS pod embedded for a quarter or a WordPress site moved to Payload in six weeks.
Every service on this page is staffed by senior engineers only. No junior benches, no offshore pods, no account managers standing between you and the person writing the code.
How Do I Know Which Service I Need?
Most teams start in one of two places: a SaaS product engineering pod if the work is roadmap-critical and ongoing, or a single-scope engagement if the work has a clear start and end. If you're not sure, email a paragraph about what you're building and we'll point you to the right one, or tell you honestly if we're not the right fit.
The two engagements most teams ask for first.
SaaS product engineering and AI-accelerated delivery - both run as quarterly retainers, both ship work into your repo from week one. The other five engagements live below.SaaS product engineering and AI-accelerated delivery both run as ongoing quarterly retainers and both ship work into your repository from week one. The other six engagements below are single-scope projects with a defined start and end date.
SaaS Product engineering
A senior engineering pod embedded for a quarter to ship roadmap-critical SaaS work. 12-week minimum, 2–3 features shipped per quarter.
AI-Accelerated Delivery
AI-accelerated delivery for SaaS teams that want to ship, not sit through discovery decks. Coding agents, evals, same review, six-week roadmaps.
Engineering, end to end.
Web, desktop, and CMS engineering for teams that want to ship, not recruit. Senior engineers work directly in your repository from week one.
SaaS Product engineering
A senior engineering pod embedded for a quarter to ship roadmap-critical SaaS work. 12-week minimum, 2–3 features shipped per quarter.
An Astro Agency
Flex Solutions is an Astro development agency building fast marketing sites, docs, and blogs. Hire Astro developers for your next build.
A Payload CMS agency
Greenfield Payload builds, schema redesigns, and custom-field engineering. 4–10 weeks.
Desktop apps
Native-feel Electron + React apps for macOS, Windows, and Linux, with auto-update, code-signing, and deep OS integration. 8–14 weeks.
AI as a delivery practice, not a slide deck.
Coding agents, evals, and durable workflow infrastructure, treated as an engineering primitive rather than a pitch-deck feature.
AI-Accelerated Delivery
AI-accelerated delivery for SaaS teams that want to ship, not sit through discovery decks. Coding agents, evals, same review, six-week roadmaps.
Full-Lifecycle Process Automation
AI process automation built on durable workflows and evals, not triggers that break every Tuesday. One process, automated end to end.
Off WordPress, on time.
Two migration paths off WordPress, chosen by what your content actually needs: Astro for editorial speed, Payload for dynamic, typed, access-controlled content.
WordPress to Astro
Migrates WordPress sites to Astro while preserving URLs, redirects, schema, sitemaps, and editorial workflows. 4–8 weeks.
WordPress to Payload
Migrates WordPress content into a typed, headless Payload stack for teams that need a modern editor experience. 6–12 weeks.
Not sure which migration fits? If your site is mostly marketing pages, docs, and blogs, WordPress to Astro is usually faster and cheaper. If you need typed schemas, gated content, or multi-locale editing, WordPress to Payload is the better fit.
How every engagement runs: the five-step process.
- 01
You email us.
A few lines about what you're building, your stack, and how soon you want to start. No forms, no qualification call.
- 02
We send a fee letter.
Delivered within four working days. One page: scope, fee, calendar. If we're not the right fit, we say so and point you somewhere else.
- 03
We embed.
Slack, Linear, GitHub, standups. Senior engineers only — no juniors, no offshore pods, no account managers in between.
- 04
We ship.
Weekly demos, fortnightly invoices, a feature flag flips somewhere every Friday. You hold the keyboard alongside us.
- 05
We hand over.
A runbook, full documentation, and a 30-day support tail. You can ship a fix on day 31 without us, or we extend on a fresh roadmap slice.
Numbers That Back the Process
Both. Single-scope work like a migration, a new Astro or Payload build, or a desktop app runs as a fixed fee agreed up front. Ongoing SaaS product engineering and AI-accelerated delivery run as monthly retainers, capped and quoted before the engagement starts.
The founders and senior engineers you meet on the first call, and no one else. There are no account managers, no delegated junior benches, and no offshore pods added after the contract is signed.
Yes, though most of the studio's recent work is in Next.js, Payload, Astro, and Electron, all TypeScript-based. If your stack is different, tell us in the first email and we'll confirm fit before sending a fee letter, or point you to a team better suited to your language and framework.
Yes. We'll send our own NDA before you share anything proprietary, and we're equally happy to sign yours. MSAs and DPAs are handled on a per-engagement basis once scope is agreed.
You own the code, the schema, and the documentation produced during the engagement. Nothing is licensed back to Flex Solutions, and there's no retained equity or ongoing royalty arrangement tied to the work.
Email a paragraph about what you're building and how soon you want to start. If it's ongoing, roadmap-critical work, that's usually SaaS Product Engineering or AI-Accelerated Delivery. If it has a clear start and end date, like a migration, a new build, or a desktop app, it's one of the other six services above.
No. Design at Flex Solutions is delivered alongside engineering as part of a single engagement, not as a standalone service, since the studio is built around senior pods that own both the interface and the code behind it.
Most engagements have a one-to-three-week lead time once a fee letter is signed, depending on which pod is available. The studio takes a limited number of engagements per quarter, so the earlier you reach out, the more likely your preferred start date holds.
Tell us what you're building.
Two paragraphs is enough. We'll come back with a one-page fee letter inside four working days, or point you to a studio that's a better fit. No qualification calls, no discovery decks.
Want the bigger picture before you email? Read more about Flex Solutions or browse the journal for how the team actually works.