Mid/Senior Fullstack Engineer

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Paris, IDF, fr remote Until 8/21/2026 First posted February 23, 2026 Last posted February 23, 2026
Job description

Localista is an AI-powered Omnichannel Conversation Suite to send personalized and targeted messages across preferred channels to thousands of guests at once.

We are seeking an experienced Senior Fullstack Developer to join our team for an exciting web application project built using the Remix stack. The ideal candidate will be proficient in building complex web applications with a focus on performance, scalability, and a clean user experience.

 

• Develop and maintain features in a web application built with Remix, React, and TypeScript.
• Design and integrate with backend systems using Prisma ORM.
• Implement and manage end-to-end integrations with third-party APIs and OAuth providers.
• Collaborate with the team to design and optimize database schema, API structures, and front-end components.
• Write clean, maintainable code and conduct peer code reviews.
• Work closely with the product team to understand business requirements and provide technical input.

• 5+ years of fullstack development experience.
• Strong proficiency in Remix, TypeScript, and React.
• Experience with Prisma ORM for database management.
• Solid understanding of RESTful and GraphQL APIs, including third-party API integration.
• Hands-on experience with OAuth and other authentication/authorization protocols.
• Familiarity with server-side rendering and performance optimization techniques.
• Excellent problem-solving skills and attention to detail.
• Ability to work in an agile, fast-paced environment.

About this role

Summary

Develop and maintain web application features using Remix, React, TypeScript, and API integrations.

Job title

Mid/Senior Fullstack Engineer

Experience level

5+ years

Industry

software

Location requirements

based in Paris, remote work not specified

Salary

Not specified

Management role

No

Skills & keywords

Required skills

remixtypescriptreactprismarestful apigraphql apioauth

Preferred skills

None specified

Specializations

fullstackreacttypescriptprismaapi integration
Locations

Structured locations inferred from the posting.

Paris, France

Remote City