Website · App · AI
A website that turns a visit into a call or a quote, an iOS and Android app, an AI assistant that prepares your quotes inside your software. We design them, build them and keep them evolving.
01What we do
From the website that presents your business to the assistant plugged into your software.
A site designed page by page, fast, found on Google.
No off-the-shelf theme: a site built around your services, served as static pages so it loads fast, with forms connected to your CRM and every enquiry measured. We also build online shops, and we take over sites left broken.
ReferenceYoma Voyage, tailor-made travel agency
One codebase for iOS and Android.
Consumer apps published on the App Store and Google Play, business apps for field teams, tablets in kiosk mode for a counter or a leisure venue. Offline mode, notifications and store publishing are handled end to end.
ReferenceTap’N’Taste, a restaurant menu on tablets
An assistant that works inside your tools, not beside them.
Preparing a quote in your software, answering from your contracts with its sources, checking your bookings by message: the agent chains the steps and stops when in doubt. Sensitive actions wait for your approval, and every action is logged.
ReferenceBooking assistant for a guest-house operator
Your tools connected, with no re-typing.
Forms, CRM, messaging, invoicing: we connect your software with n8n, hosted in Europe or on your own servers. Every workflow warns you when a step fails, and it is documented so your team understands it without us.
ReferenceRetrieving files from a portal with no export, for a training organisation
02Work
Websites and apps live today, for very different trades.
03Artificial intelligence
AI takes over the repetitive tasks inside your tools. Anything that commits your business goes through you.
A task suits AI when it is repetitive and you can check the result.
Claude, GPT, Mistral or open-source models, depending on the task and how confidential your data is. Hosting in Europe or on your own servers.
04Method
A reply within two working days, a first conversation with no commitment.
You describe the project through the form or by email. We look at your tools and your data, and we estimate the time to be saved before proposing anything.
What you risk: a conversation, with no commitment.
We plug into your current software, read-only first.
In general, you do not change software. The first connector reads your data without modifying it. Write access is added later, tool by tool, when you decide.
What you keep: your software and your access.
A first workflow in one to two weeks, an assistant in two to three.
You judge on your own files. An automation runs alongside the old process until it has proven it does as well. If the tool does not do better, we tell you.
What you keep: your current process, until the new one has proven itself.
Monitoring, security updates, backups and a regular review.
We monitor, apply security updates and back up, with a regular review of what should change. Everything is documented so your team can take it over without us.
What you keep: your data, and documented tools your team can take over.
05Who you talk to
Antoine Perry founded D&A Engineering. A software engineer with a PhD in artificial intelligence, he has delivered projects for independents, SMEs and groups since 2019, around forty to date.
We work in English, French or Spanish.
06Frequently asked questions
Scoping, progress reviews and deliveries happen remotely, by video call and on test environments you can open whenever you like. You keep a single point of contact from the first conversation to production, reachable directly on +33 6 74 18 13 95.
Yes. One project can bring together the website, the iOS and Android app and the automations that connect them to your software. Content and accounts are shared, so nothing has to be entered twice.
Yes, in several languages if you wish. We plan one address per language from the start, so that each version can be found on Google.
A model can make mistakes: we check its answers against the source data, and sensitive actions wait for your approval. If an automation step fails, you are notified and the run is kept so it can be replayed. Every action is logged.
Only the part needed for each request is sent, to providers whose terms exclude training on your data. When confidentiality requires it, we deploy open-source models on European infrastructure or on your own servers.
You do, entirely. You receive the Git repository, the documentation and access to the hosting, and both the server and the data remain yours. You can hand the work over to another team at any time.
In general, no. We plug into the tools you already use, and we tell you from the start what is reliable when a piece of software offers no direct access.
We connect your tools with n8n, hosted in Europe or on your own servers: your data does not go through a third party and the cost does not rise with volume. If Zapier or Make are already in place and do the job, we keep them.
07First conversation
Google reviews · Antoine Perry
Before founding D&A Engineering, Antoine Perry delivered some forty projects as an independent engineer. His clients review him on Google.
Antoine participated in a training session at our company in Tours. Highly professional, attentive, and offering sound advice, he also knows how to share his knowledge by adapting to his audience and their specific roles.
Antoine manages the maintenance of my website under a monthly contract, and I am completely satisfied with his services. Thanks to his regular monitoring and responsiveness, I can rest easy in the event of a breakdown or technical problem. Antoine is always available to quickly resolve any unforeseen situation, allowing me to focus on my business without worrying about the technical aspects. I highly recommend his services to any company seeking reliable and professional support for their website.
I am extremely satisfied with the work done by Mr. Perry. From our very first contact, he listened carefully to my needs and offered creative solutions.
The website he designed for my business is both aesthetically pleasing and functional, which has strengthened and enhanced our online presence. Communication was smooth and professional throughout. Mr. Perry was always responsive and met all deadlines.
I highly recommend his services to anyone looking to create or improve their website. Thank you so much for your work.
I am extremely satisfied with the service I received! Professionalism, responsiveness, and attentiveness were evident throughout the entire project. The delivered website exceeded my expectations, both in terms of design and functionality. Every request was carefully considered and executed. I highly recommend them to anyone looking for a high-quality web solution!
I hired Mr. Perry to design my interior design app, and I highly recommend his services! His prices were reasonable, deadlines were met, and he was always available to keep me updated on the progress.
Work with Antoine Perry! He's intelligent, a good listener, and a quick learner. He perfectly met my needs. He's professional, friendly, and his rates are reasonable. I have absolutely no complaints. He deserves his excellent Google ratings!
A highly competent trainer, attentive and able to adapt to diverse contexts. Up-to-date and relevant training content with continuous technological monitoring.
Excellent work with Antoine, who is meticulous and strives to fully meet his clients' needs. He created a perfect website to promote a vacation rental, gave me excellent SEO advice, and took the time to explain SEO principles to me in simple terms. A big thank you!
I hired Antoine to create a website to promote a vacation rental. The site exceeded my expectations, with a very user-friendly interface and seamless integration with other applications. He clearly explained SEO techniques, takes the time to understand his clients' needs, and strives to fully meet their requirements. A huge thank you to Antoine. You can trust him completely.
I share the excellent reviews posted here; Antoine is very professional, responsive, and available. I highly recommend his services!
Antoine is very responsive and professional; he perfectly met my needs. I highly recommend his services!
Antoine is very professional! He manages our Petit Veganne website with great responsiveness and dedication. Always attentive, we recommend him 100%!
Antoine is highly professional and provides excellent advice for website creation, maintenance, and managing our Google Ads campaigns. I recommend him without hesitation!
Antoine is very professional. He responded to my requests throughout the website creation process through various exchanges.
He also provided helpful advice on how to optimize the site.
It was a pleasure working with Antoine.
Antoine helped me create my website. He perfectly met my needs and expectations: he's an excellent developer, professional, attentive, offers good advice, is responsive, and also creative!
I highly recommend him. Thank you, Antoine 😉
I had my entire new website and online store created by Mr. Antoine Perry. I am very satisfied with the result and his professionalism.
I highly recommend his services: speed, efficiency, and always attentive to his clients, not to mention the excellent value for money!
Thank you for everything!
Lionel
Mr. Antoine Perry is highly recommended.
Very serious and respectful of deadlines, his greatest strength, in addition to his obvious skills, is his ability to advise me. I also greatly appreciated his communication skills. A dynamic young entrepreneur.
I highly recommend Antoine for your professional projects. He understood my expectations perfectly. I've rarely seen a young man so passionate about his work and so professional, and congratulations on that!
I couldn't have hoped for such a great result. I don't have words strong enough to thank you, so simply, THANK YOU.
I will definitely use your services again.
A big thank you to Antoine who helped me with the development of my e-commerce website, he is passionate about his field and will be able to advise you on the strategy to adopt to develop your online business!
I highly recommend Antoine: he's responsive, his availability is exceptional, and his professionalism is second to none. He fully met my needs and even guided me on more than one occasion when I was stuck for ideas. Thank you so much, Antoine!
As a webmaster, I sometimes collaborate with Antoine on projects! He always gives great advice, and it's a real pleasure to work with him!
Thanks, Antoine!
Top-notch, efficient and attentive, I highly recommend them 👍🏼
Thanks to Antoine for his quick response in designing my new website!!
I highly recommend Antoine for his exceptionally professional work. Very responsive and attentive, he exceeded my expectations for my project. Clearly passionate about his work, he gives 100% to every project he undertakes. I will definitely use his services again for future projects, and all at a very competitive price. A big thank you!
I highly recommend Antoine Perry for all your website projects. He understood my needs perfectly and offered expert advice with a highly professional approach. His passion for his work is evident, and he will provide you with the best possible guidance! Everything was completed on time, and the price was competitive!
Thank you, Antoine, for all your hard work and advice! A polished and efficient result, and unwavering availability.
Thank you again.
Caroline, Matern'health
I thank Antoine for his professionalism and availability.
Antoine is a true expert in the web field and will be able to advise you in the best possible way!
I highly recommend him!
Antoine created a modern, clean, and very well-structured website. His knowledge is extensive, and he is very responsive to feedback and suggestions. He is also a professional capable of meeting very tight deadlines.
Best website designer in all of France!
Antoine is very professional and a great listener!
I highly recommend him!
No complaints, I highly recommend it. Thank you, Antoine!
A collaboration via FOXEO has resulted in a website that's always up-to-date, no more calls from our clients, and no more crashes.
Top-notch website maintenance!
Efficient, responsive, attentive and professional! A promising new collaboration.
Antoine is an excellent advisor! He guided me and offered solutions tailored to my needs and expectations. I highly recommend him and wouldn't hesitate to contact him for my future projects!
Highly professional! The website is perfect and regularly maintained. A pleasure to work with Antoine.
Antoine was very responsive, attentive to my project, and able to provide me with a prototype that met my expectations within a reasonable timeframe and price. I'm eager to see the next steps. Don't hesitate to contact him.
Responsive to requests.
Antoine completed our website in two weeks.
I recommend Antoine for his professionalism and his thoroughness in carrying out his work.
Thanks to Antoine for designing my website.
Always available and attentive.
Speed, efficiency and profitability
Thank you so much for your services, Antoine! You were very pleasant and professional in creating my website... he's a passionate and engaging guy, I highly recommend him!
Highly recommended for his dynamism, availability, and professionalism. A passionate and dedicated worker who completed my project on time. Well done and thank you.
A skilled and fast developer! I recommend his website maintenance services.
Antoine is a highly qualified web design professional who can advise you on how to showcase your business online. I highly recommend his services.
His rates are competitive compared to local agencies, while his service is much more personalized and responsive to the client's needs.
Serious and professional-quality work; they listen carefully and adapt to your needs. Excellent value for money. I will definitely use this company again.
Antoine created our company website quickly and professionally. He met all our expectations. I recommend him without hesitation.
Antoine is a responsive, professional, and attentive developer! I highly recommend him for creating your website!
The service was very satisfactory and met my expectations.
A very warm welcome, attentive to the needs of its clients. Simple. Efficient.
Great experience with Antoine! Thanks again for your professionalism!
Thank you for everything, a competent and responsive professional. I recommend them.
I recommend Antoine's work; he is a trustworthy person who delivers high-quality work!
Good service, attentive to professional needs
Always attentive, efficient, professional and very responsive, look no further!
A serious person who knows his job! Moreover, he always has good advice.
The website is impeccable, harmonious, and exceeded my expectations. The price was reasonable! I highly recommend Mr. Perry!
Antoine Perry will understand your needs and provide you with quality service as quickly as possible.
Highly serious and professional, I highly recommend Antoine Perry for his quality work!!
A highly professional, responsive, and attentive developer. You can entrust him with your projects without hesitation!
He was very professional with the repair on my site, I recommend him!
Very professional, excellent work, I recommend without hesitation!
High-quality work, completed on time! I recommend them!
The first conversation comes with no commitment
An idea to shape, a tool to build or a technical question? Tell us what you have in mind.
RCS Luxembourg B306270
5.0 · 81 Google reviews