Contact
Tell us what you are building. We will tell you if we can help.
A paragraph about the project is enough to start. We will reply within one business day with honest initial feedback and, if it is a fit, book a 30-minute discovery call.
Contact details
Email konstantin@gessli-dev.com
Phone +33 [phone placeholder]
Address 8 Rue Edmond Valentin, Appartement 3, 75007 Paris, France
Response within one business day
What to include
What you are building — one clear sentence
What it needs to do — key features or functionality
Your budget range — even a rough range is helpful
Your timeline — hard deadline or flexible
Project brief
Send us a brief.
Fill in what you can. We will follow up with a discovery questionnaire after reading your message.
FAQ
Common questions before getting started.
Do I need a detailed specification before contacting you?
No. A paragraph describing the problem is enough. We will ask the right questions during discovery.
What happens after I send a message?
We read it, respond within one business day, and if it is a fit, suggest a 30-minute discovery call.
Do you work with businesses outside France?
Yes. We work remotely across Europe and beyond, with discovery and review calls via video.
What if my project does not fit your standard services?
Tell us anyway. If we cannot take it on ourselves, we will tell you honestly and point you in a better direction where we can.