Staff Augmentation
Full-Stack DevelopersVetted. Embedded. Ready in Days.
Full-stack developers from a QA-first company, which means code that arrives with tests, not promises. React, Node.js, Java, Python, and .NET Engineers for SaaS builds, MVPs, and AI feature Development.
Experience levels
Mid · Senior · Lead
Engagement model
Full-time dedicated, billed monthly
Typical start
Typically within days of a scoping call
Recruitment fee
Zero, monthly billing only
Core stack & skills
Developers who ship tested code because that is the house style
Almost every Development shop says it values quality.
Almost every Development shop says it values quality. The difference here is structural rather than cultural: our developers work inside a company whose primary business is Testing, review each other's code against that standard, and have our own QA practice looking at their work. Tests arrive with the feature because arriving without them is conspicuous.
The practical effect shows up later than the first sprint. A codebase built this way is one where a refactor in month nine is a normal task rather than a risk, because coverage exists and the pipeline gates on it. The cost of that discipline is a modest amount of time early; the cost of skipping it compounds quietly.
How we vet, and why it is not a CV screen
Every Engineer is assessed by our Senior QA leadership before they reach a client, and the assessment is practical rather than biographical.
Every Engineer is assessed by our Senior QA leadership before they reach a client, and the assessment is practical rather than biographical. Candidates work through problems from real engagements: diagnose why this suite is flaky, design coverage for this feature under time pressure, review this test code and say what you would change. A CV tells you what someone has been near. A working session tells you how they think when the answer is not obvious.
We also screen for the things that decide whether an embedded Engineer succeeds: whether they write a defect report a developer can act on, whether they push back when a requirement is ambiguous, and whether they can explain a technical risk to a product owner without either patronising them or hiding behind jargon. Those matter more than tool familiarity, which is learnable in a fortnight.
Stack and typical work
React and Next.js on the frontend, with Node.js, Java, Python or .NET on the backend, REST and GraphQL APIs, and LLM integration against OpenAI, Claude or Gemini where a product ships AI features.
React and Next.js on the frontend, with Node.js, Java, Python or .NET on the backend, REST and GraphQL APIs, and LLM integration against OpenAI, Claude or Gemini where a product ships AI features. Cloud work sits on AWS most often, with Azure and GCP covered by the same practices.
The engagements that suit this model best are SaaS product builds, MVPs where speed matters but rework would be fatal, internal platforms, and AI feature Development where the evaluation layer needs to exist from the start rather than be retrofitted. Where a build is the whole scope rather than an embedded role, our software and AI Development service is the better fit.
How the commercials work
Engagements are billed as a monthly rate per Engineer, with no separate recruitment fee and no placement charge.
Engagements are billed as a monthly rate per Engineer, with no separate recruitment fee and no placement charge. You interview the person we match before anything starts, and you can decline, matching is our job, not a fait accompli. An NDA is available before you share any details, and everything the Engineer produces lives in your repositories under your ownership.
Typical time to start is days after a scoping call rather than the weeks or months a hiring process takes, because we are matching from an existing team rather than opening a search. If the engagement needs to end, it ends with a handover rather than a cliff. Full commercial detail, including how project and fractional models compare, is on the pricing page.
Engagement path
From first call to embedded Engineer
Four steps, typically days rather than the weeks a hiring process takes.
Scoping call
Product, stack, timeline and what the role owns, a feature area, a service, or a whole surface. A Senior Engineer takes the call.
Matching
Matched on stack and product domain, with overlap hours agreed. We tell you if the right person is not currently available.
You interview
Technical interview against your real codebase problems. Declining costs nothing.
Ship with tests attached
Features arrive with unit and integration coverage and a pipeline that gates on it, so month nine is a normal month.
Deliverables
What the engagement includes
Everything the Engineer produces lives in your repositories and your tooling, under your ownership.
Handover pack
6 artefacts · yours to keep
A named full-stack developer embedded in your product team
Features delivered with unit and integration coverage as standard
API design and documentation that downstream consumers can build against
LLM integrations shipped with an evaluation harness where AI features are in scope
Code review against a Testing-first house standard
Everything in your repository, under your ownership, from the first commit
Self-check
Signs you need this role
If more than one of these is true, it is usually cheaper to fix now than after the next release.
Velocity is fine and every refactor feels dangerous
Features ship without tests and the debt is acknowledged but never repaid
You need to build an AI feature and nobody can say how its quality would be measured
Hiring permanent developers would take months you do not have
A previous agency delivered code your team cannot safely change
A Senior Engineer replies within one business day. NDA first.
Questions
Frequently Asked Questions
Straight answers, written the way we'd say them on a call.
Still curious? Talk to usKeep reading
Where to go next
Teams hiring Full-Stack Developers usually read these next.
Need Full-Stack Developers?
Share your stack and timeline, interview matched Engineers this week.
- A Senior Engineer replies, not a sales layer
- Within one business day, every time
- NDA available before you share any details
16+
Years QA leadership
16
Testing disciplines
6
Markets served
1
Business day to reply
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