Vetted engineers who join your team rather than take work away from it. For organisations in Dublin, across Ireland and in the UK that have the plan and the technical leadership already, and are short of hands.
Team augmentation means we dedicate named people to your work for a fixed term. They join your standups, your backlog, your repository and your review process, and they take direction from your leads. What you are buying is capacity and specific skills, not a managed project sitting behind an account manager.
That distinction matters, because it decides whether this is the right service at all. If you already know what needs building and who is going to lead it, augmentation is the cheapest way to go faster. If what you need is someone to own an outcome end to end, you want a delivery team instead, which is a different engagement and a different page.
We staff from our teams in Dublin, London, Hungary and the Middle East, and work with mid-sized and large organisations across Ireland, the UK and Europe. Engagements for Irish and UK clients are set up with full working-day overlap, because the entire value of embedding people disappears if your team has to write things down and wait.
Extra hands on your plan
Or someone to own the outcome
Both are legitimate, and choosing wrong is expensive in both directions. An augmented engineer dropped into a team with no technical direction will not supply it, and a full delivery team wrapped around a problem your own leads already have in hand is a layer of overhead you are paying for twice.
You own the plan and the architecture. The constraint is throughput or one missing specialism.
What you get: named engineers, integrated into your team and your tools, working to your priorities, with Mosaic accountable for the standard of the work and for continuity of cover.
Nobody currently owns this end to end, and what you want is for it to be built, not staffed.
Where that lives: our custom development and prototyping service, which starts with a working prototype rather than a specification.
Many organisations end up using both in sequence: a delivery team builds the system, then augmentation helps their own people take ownership of it without a cliff edge at handover. A discovery session is normally enough to tell which one you are looking at.
Outsourced development has a deserved reputation problem. Most of it comes from three specific failure modes, so it is worth being explicit about how we avoid them.
You meet the engineers before they start and they stay on your work. Nobody gets rotated out mid-sprint because a larger account needed them.
People come from a team that already works together and reviews each other's code, rather than from a contractor market with no shared bar.
Your leads talk to the engineers. We do not insert an account manager between the people doing the work and the people who need it done.
If the fit turns out to be wrong, that is ours to fix rather than a hiring round you have to run again. Say so early and we will replace rather than defend.
The aim is for someone to be contributing to your codebase, not still being onboarded, by the end of their first fortnight.
A free session covering what the work involves, the stack, the shape of your team and where the gap sits. We come back with specific people and why they fit, and you meet them before anything is agreed.
Access, environments and tooling sorted before day one, then a kick-off that establishes who sets priorities, how work is reviewed and what "done" means here. Ambiguity on those three is what makes augmentation fail.
Our people work in your process and are visible in it. Alongside that we keep a standing check-in with you on whether the arrangement is still the right one, including whether you need fewer people, or none.
We have people with hands-on experience across Python and Django, Node.js, .NET, React, Next.js and React Native.
For platform and infrastructure roles, that experience covers AWS, Microsoft Azure, Heroku and Cloudflare, with CI/CD on GitHub and payment integrations through Stripe.
The fastest-growing request is AI engineering: people who have actually shipped against the Anthropic Claude, OpenAI and Azure OpenAI APIs and know where the failure modes are. That work is covered in depth on our AI and AI agents page.
A recruiter introduces you to candidates and leaves. A contractor market gives you individuals with no shared standards and no one accountable when one of them does not work out.
What we place is people from a team that already works together, to our own review and delivery standards, with Mosaic accountable for the outcome rather than for the introduction. If someone is not right, replacing them is our problem to solve, not a hiring round you have to run again.
Our teams are in Dublin, London, Hungary and the Middle East. Engagements for Irish and UK clients are normally staffed so there is full overlap with a standard working day, because augmentation only works if your people can talk to ours in the moment rather than in a handover note.
Where a client wants people on site for discovery, planning or key milestones, we do that; the day-to-day is usually remote and inside your own tools.
You do. That is the distinction between augmentation and a delivery team: our people join your standups, your board, your repository and your review process, and they take direction from your leads the same way a permanent hire would.
Mosaic stays responsible for the things an employer is responsible for, which is the standard of the work, continuity of cover, and stepping in if the fit is wrong. We are deliberately not a second layer of project management sitting between you and the engineer.
Back-end and front-end engineering, mobile, data engineering, DevOps and platform, QA, and increasingly AI engineering, which is where most of the current demand sits.
We would rather tell you a role is outside what we can staff well than fill it with whoever is available. If the shortfall is in a specialism we do not have real depth in, we will say so.
For an agreed period fixed at the start, and in practice measured in months rather than weeks, because there is a ramp-up cost to anyone joining a codebase and a very short engagement never earns it back.
The exact term, notice and commercial terms are set per engagement rather than sold from a rate card, so they are part of the conversation before anything is signed.
Then augmentation is probably the wrong shape and you want a delivery team. The test is whether you already have the technical leadership and the plan, and are short of hands, or whether what you need is someone to own the outcome end to end.
If it is the latter, our custom development and prototyping service is the better fit. Plenty of clients use both: a delivery team to build the thing, then augmentation to help their own team carry it.
Yes. We are based in Dublin and London with team members in Hungary and the Middle East, and we work with organisations across Ireland, the UK and Europe.
A free discovery session covering the work, the stack and the shape of your team. We will tell you whether augmentation is the right answer, and say so if it is not.
