We’re seeking an experienced Fullstack Engineer, with a frontend sensibility.
As our first and founding engineer, you’ll have the opportunituy to make a significant impact on our product and especially on the end-user experience.
At Tandem, delivering an exceptional user experience is paramount to driving user adoption in SaaS. Your role is crucial: by owning the widget and backoffice, you’ll directly influence how users interact with our AI Copilot, and Product Managers with its configuration.
You’ll shape both the user interface and the underlying systems of our solution, enhancing user engagement and significantly contributing to their success with our platform.
You’ll also have the opportunity to contribute to the development of our personalized and tailored AI.
Design and develop the user-facing widget
Contribute to API, AI and cloud development
Drive the technical direction for frontend and UI/UX development, setting high standards
Experiment with new ideas, concepts and technologies
Collaborate closely with product managers and designers for roadmap planning and product design
4+ years of experience as a Fullstack or Frontend Engineer, ideally in a start-up or scale-up
Expertise with React.js
Strong interest in UI/UX
Entrepreneurial and builder spirit: you don’t just want to execute over specs; you like to be directly involved in conversations about strategy and roadmap and to take part in critical decisions
Hacker-spirit and doer mindset: we like to experiment, iterate fast, play with new technologies and tools. We’re working on something that has never been done before!
Passion for the AI field (but no need to be an AI Engineer)
Frontend: TypeScript, React, Vite, socket.io, Refine.dev (for the backoffice)
Backend: TypeScript, Nest.js, Supabase, Postgres
Ops & Infra: AWS (ECS, Cloudfront, S3,…), Terraform, Github Actions
AI: OpenAI, Claude, Langfuse,… (and more to come)
Competitive salary and equity package
Latest Macbook Pro
Joining a renowned startup studio: you’ll be in a dynamic environment, surrounded by smart and ambitious people in a fun atmosphere
Lovely offices at Hexa, in Paris (75010)
Hybrid remote: 2 days a week in the office, the rest is up to you
Hexa is committed to creating a diverse environment. All qualified applicants will receive consideration for employment irrespective of gender, origin, identity, background and sexual orientation.
We know there’s a long way to go regarding diversity in our industry, which is why we encourage all applicants- especially those listed above- to apply to our open positions.
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