Senior Next.js / Supabase Developer — Paid AI-Assisted Pilot, Potential Long-Term Project
Budget / Salary€750–1,500
TypeFreelance project
LocationRemote
Posted1 hour ago
**Senior Next.js / Supabase Developer — Paid AI-Assisted Pilot, Potential Long-Term Project**
We are developing a multilingual local-business directory and are looking for a senior, hands-on developer to deliver a fixed-price technical pilot.
The successful candidate may subsequently lead the complete V1 build, ongoing maintenance and later V2 development. These would be separately agreed contracts.
**The project**
The platform combines business discovery, geographic search, recommendations, private saved lists, business management and paid visibility.
We have detailed specifications, approved visual concepts and defined business rules. Shortlisted candidates will receive a private pilot brief and relevant project information.
**The paid pilot**
Build one complete working journey:
Find a business → view its profile → save it to a private list → optionally share a read-only link.
The pilot must demonstrate:
- Next.js, TypeScript and Supabase/PostgreSQL.
- One canonical business record with a real location and separate service areas.
- Authentication and database permissions protecting private lists.
- Read-only sharing with revocable links.
- A five-language framework: English, Spanish, Dutch, French and German. We supply the agreed pilot translations.
- Responsive implementation following supplied design references.
- Meaningful automated tests, including permissions and sharing.
- Deployment to a client-owned staging environment, with setup documentation.
The final scope and acceptance criteria will be agreed before award.
**How we expect you to work**
Use AI development tools where they improve efficiency. You remain responsible for architecture, code review, testing, integration and the finished software.
All code must be committed to our GitHub repository from the start. Relevant accounts will be client-owned. Dependencies, licences and handover requirements must be documented.
We want a lead who personally builds and understands the application. If additional developers are proposed, their involvement and cost require prior approval.
**Commercial arrangement**
- Fixed-price pilot, paid against accepted milestones.
- Independent technical review forms part of acceptance.
- No additional work or charges without prior written approval.
- After the pilot and review of the full specification, we will request a fixed-price proposal for the remaining V1.
- Ongoing maintenance and support must be quoted separately.
**Please include in your application**
1. Two relevant live applications and exactly what you personally built.
2. Your experience with Next.js, Supabase, database permissions, geographic search and multilingual applications.
3. The AI tools you use and how you review and test their output.
4. Your proposed pilot price, estimated duration and availability.
5. Whether you work alone or with named collaborators.
6. Your maintenance offering, support availability and backup arrangements.
7. Your questions or assumptions about the pilot.
We will request an indicative full-V1 price range after shortlisted candidates have reviewed the private scope.
We value clear communication, sound technical judgement and maintainable software. Please respond specifically to this brief.
We are developing a multilingual local-business directory and are looking for a senior, hands-on developer to deliver a fixed-price technical pilot.
The successful candidate may subsequently lead the complete V1 build, ongoing maintenance and later V2 development. These would be separately agreed contracts.
**The project**
The platform combines business discovery, geographic search, recommendations, private saved lists, business management and paid visibility.
We have detailed specifications, approved visual concepts and defined business rules. Shortlisted candidates will receive a private pilot brief and relevant project information.
**The paid pilot**
Build one complete working journey:
Find a business → view its profile → save it to a private list → optionally share a read-only link.
The pilot must demonstrate:
- Next.js, TypeScript and Supabase/PostgreSQL.
- One canonical business record with a real location and separate service areas.
- Authentication and database permissions protecting private lists.
- Read-only sharing with revocable links.
- A five-language framework: English, Spanish, Dutch, French and German. We supply the agreed pilot translations.
- Responsive implementation following supplied design references.
- Meaningful automated tests, including permissions and sharing.
- Deployment to a client-owned staging environment, with setup documentation.
The final scope and acceptance criteria will be agreed before award.
**How we expect you to work**
Use AI development tools where they improve efficiency. You remain responsible for architecture, code review, testing, integration and the finished software.
All code must be committed to our GitHub repository from the start. Relevant accounts will be client-owned. Dependencies, licences and handover requirements must be documented.
We want a lead who personally builds and understands the application. If additional developers are proposed, their involvement and cost require prior approval.
**Commercial arrangement**
- Fixed-price pilot, paid against accepted milestones.
- Independent technical review forms part of acceptance.
- No additional work or charges without prior written approval.
- After the pilot and review of the full specification, we will request a fixed-price proposal for the remaining V1.
- Ongoing maintenance and support must be quoted separately.
**Please include in your application**
1. Two relevant live applications and exactly what you personally built.
2. Your experience with Next.js, Supabase, database permissions, geographic search and multilingual applications.
3. The AI tools you use and how you review and test their output.
4. Your proposed pilot price, estimated duration and availability.
5. Whether you work alone or with named collaborators.
6. Your maintenance offering, support availability and backup arrangements.
7. Your questions or assumptions about the pilot.
We will request an indicative full-V1 price range after shortlisted candidates have reviewed the private scope.
We value clear communication, sound technical judgement and maintainable software. Please respond specifically to this brief.
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