Software Development Company in Paris
The best Software Development Company in Paris, at the best available price.
You need engineering capacity that does not come with account managers, project managers and three juniors learning on your budget. One fixed monthly cost, senior people, any stack, and the person who takes your call is the person who writes the code.
Paris has become one of Europe's main centres for AI research and AI startups, alongside a large base of corporate headquarters in luxury, retail, banking, insurance and energy. Large French groups buy through formal procurement and expect suppliers to meet French and EU requirements on data protection and hosting. The startup scene around Station F moves faster but often sells to those same groups.
Paris AI companies and large groups compete for the same senior engineers. A dedicated senior engineer working in your repository adds capacity month to month without a long recruitment cycle.
What you get
- Senior engineers only, on a fixed monthly cost with unlimited feature development rather than hourly billing
- Full stack: web, mobile, backend, data and the cloud infrastructure underneath it
- Your repositories, your cloud accounts, your credentials, throughout the engagement and after it
- Works alongside an existing integrator or in-house team rather than requiring you to displace either
- Month to month, because a team you cannot leave is just an expensive hire
Nothing payable upfront on project work: you pay per checkpoint, after you have seen it and accepted it. Retainers are month to month with no long lock-in. Scope and price are settled on a call.
Invoiced in USD or EUR, payable by Wise or bank transfer.
Request a callback
You speak to the engineer who does the work. No sales rep, no deck.
Who builds here
AI Development Company
Paris has a deep market for AI product work, and French buyers expect it to come with the CNIL-aligned documentation, hosting choices and works council preparation that local rules require.
What Paris companies build with us
Get it built at $0.
That is not a discount. It is when you pay. The work is split into checkpoints with acceptance criteria written down before anything starts, and each checkpoint is invoiced only after you have seen it and accepted it. No deposit.
- $0 to start
- You hold every dollar until a checkpoint is delivered and you accept it. No approval, no invoice.
- Fixed cost, unlimited features
- Or hire the team outright: one fixed monthly cost, unlimited feature development, any stack.
- The engineer takes your call
- The person on your first call is the one who architects and writes it. No account managers, no bench time.
A US agency quotes $50,000 to $150,000 for the same build and asks for 40 to 50% of it before a line is written. Account managers, project managers, sales commission and bench time. None of it appears in your product.
Three stages, nothing hidden.
Twenty-minute call
We work out what capacity you actually need. Plenty of teams need one strong engineer for six weeks rather than an ongoing arrangement, and you will be told if that is your situation.
First month, scoped
A defined block of work with acceptance criteria written down before it starts, so you can judge the arrangement on delivered software rather than on a pitch.
Ongoing, month to month
A fixed monthly cost, direct access over Slack or WhatsApp, and no lock-in. You leave with the code, the documentation and the infrastructure, all of it already yours.
What actually applies here.
Regulation and data
GDPR applies with France's Loi Informatique et Libertés, and the CNIL has published detailed practical recommendations on applying GDPR to the development of AI systems, including when legitimate interest can justify training. Hosting health data requires a provider certified under the HDS scheme, and sensitive public-sector data is increasingly expected to sit on cloud services qualified by ANSSI under SecNumCloud. Banks and insurers are supervised by the ACPR and have applied DORA since January 2025. French courts have suspended AI deployments until the works council (CSE) was consulted under Article L2312-8 of the Labour Code. France's NIS2 transposition bill was still before Parliament at the time of writing. The EU AI Act has been in force since August 2024: general-purpose model rules applied from August 2025 and transparency duties from August 2026, while the 2026 Digital Omnibus moved the main high-risk obligations to December 2027 for stand-alone systems such as hiring or credit scoring, and August 2028 for AI built into regulated products.
Contracting and payment
You contract with an individual consultant based in India. Invoices in EUR or USD, paid by Wise or bank transfer. Your accountant handles an overseas supplier in the usual way, and any documentation they need is provided before access is granted.
Working hours
Four or more hours of daily overlap across your morning, Central European time, with same-day replies on working days.
Can you prepare documentation for a CSE consultation?
Yes, on the technical side. We describe what the AI tool does, what data it uses, what it logs and how people stay in control of its outputs. The consultation itself is run by you with your CSE, and we can adjust the deployment to what is agreed.
Do you work in French?
The work, code and documentation are in English. AI systems we build can handle French and other languages for your users, and the technical documentation is written clearly enough for your team to adapt for French-language stakeholders.
How do working hours line up with Paris?
Four or more hours of daily overlap across your morning, Central European time, with same-day replies on working days. The work is remote from India, so meetings happen on calls rather than in person.
Do you have a local office here?
No. You contract with an individual consultant based in India, which is exactly why the cost is what it is. If your procurement requires a locally registered supplier, we work as a subcontractor to your local partner instead.
How is this different from hiring an agency?
An agency bills you for a team and staffs it with whoever is free. Here there is no bench, no account manager and no sales commission in the price, and the engineer on your first call is the one writing the code. The trade-off is honest: you get depth from one senior person rather than breadth from five.
Can you work with our existing team?
Yes, and that is the usual arrangement. We take the parts your team does not have depth in, in your repositories and against your standards, rather than carving out a separate project nobody else can maintain.
Dedicated Development Team
Lean senior pods, personally led, at globally competitive pricing. World-class engineering without inflated agency costs.