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Our method
Spec-Driven Development: from intent to deployment, with no information lost.
We integrate AI at every stage: specification, generation, review, testing. The result: more speed and, above all, quality standards we could never have reached by hand.
The workflow
Four stages, one continuous chain.
From specification to deployment, each stage feeds the next. Nothing gets lost, everything gets verified.
01
Executable specificationUser stories, acceptance criteria and API contracts written in an AI-readable format.02
Assisted generationCode scaffolding, database schemas, tests and documentation generated from the specification.03
AI + human reviewAI pre-reviews every pull request (security, performance, conventions). The engineer validates and makes the call.04
Testing and deploymentCI/CD pipeline with generated tests, SAST/DAST scans and progressive deployment.Our pillars
Code that holds up.
Four principles applied to every project, whatever its size.
PILLAR 01Spec first, code secondThe specification becomes the source artifact. AI starts from the spec to generate code, tests and documentation, in that order.
PILLAR 02Continuously verified qualityLint, type-check, unit tests, security scan: every change is analyzed by AI before human review.
PILLAR 03Best practices by defaultCode conventions, hexagonal architecture, accessibility, observability: locked into our team prompts.
PILLAR 04Full traceabilityEvery line maps to a requirement. When the spec changes, the impact is mapped automatically.
The project lifecycle
Three phases, clear deliverables.
You always know where your project stands and what you receive at each stage.
1
Project study and modelingRequirements scoping, technical feasibility study, functional architecture and data modeling: the foundations laid before a single line of code.DELIVERABLESScoping workshopSpecifications documentArchitectureQuote2
Prototyping and visual identityWireframes, high-fidelity mockups, brand guidelines and interactive prototype: you see your product before it exists.DELIVERABLESWireframesMockupsBrand guidelinesPrototype3
Development, quality control and assuranceDelivery in sprints, automated and manual testing, assisted go-live, then maintenance and enhancements over time.DELIVERABLESSprintsTestingGo-liveMaintenance
The impact
Your competitors are still building.
Estimate my project
Your competitors are still building.
You're already live.
AI agents compress scoping, coding and testing. The result: your product reaches the market sooner, on a tighter budget, without cutting corners on quality.
Typical MVP timeline
Scoping
Development
Testing
Acceptance testing
W1W2W3W4W5W6W7W8W9W10W11W12
Traditional approach
Wetillix augmented development
Live · up to 5 weeks sooner
1.7×
Faster to launch your product
Compared with traditional development, your product goes live sooner, so you test your offer with real customers weeks earlier.
−25%
Controlled budget
Fewer hours on repetitive tasks, more value for every dollar invested.
100%
Guaranteed quality
Every line we ship is reviewed and approved by a senior engineer.
Building an NFC app that works in 3 days: impressive!
Have a project in mind?
Let's talk this week.
30 minutes to understand your needs and give you a first estimate of timeline and budget.