Job offers
Development
Full-Stack Developer
Full-stack Developer (AI SaaS) | Selendia AI

Full-stack Developer (AI SaaS) | Selendia AI

  • CZK 120–200K
  • Remote
  • Prague
  • Part-time, Full-time

Selendia AI is building an all-in-one AI Suite for B2C and B2B. We ship 20+ apps under one account and develop products like AI transcription, real-time translation, advanced voice personas, a Prompt Library, AI mini tools (ROI calculator, readiness checklist), and B2B solutions for sales process optimization and AI search visibility.

We are looking for a Full-stack Developer to help us ship features fast, clean, and reliably. If you enjoy startup execution, building real user-facing products, integrating AI APIs, and turning workflows into simple tools for people and teams, you will fit right in.

What you will do

  • Build and iterate our web app (B2C and B2B), from UI to backend

  • Design and implement AI workflows (prompting, evaluation, guardrails, cost control)

  • Integrate AI services and tools (transcription, translation, content generation)

  • Work with databases, file storage, and user accounts

  • Improve performance, reliability, monitoring, and security best practices

  • Collaborate directly with the CTO on roadmap and priorities

What we are looking for

  • Strong end-to-end web development skills (frontend + backend)

  • Experience with JavaScript/TypeScript and a modern framework (React, Next.js, or similar)

  • Solid understanding of REST APIs, databases (Postgres, etc.), and authentication

  • Product mindset and good UX intuition

  • Clear communication and ownership

Nice to have

  • Experience integrating AI APIs, prompt engineering, and token cost management

  • Audio/transcription or real-time features experience

  • Basic DevOps skills (Docker, CI/CD, monitoring)

What we offer

  • Real impact, fast iterations, your work goes to production quickly

  • Direct influence on architecture and product direction

  • Remote or hybrid, flexible setup

  • Competitive compensation based on experience and contract type

  • Growth path toward Lead / Tech Owner roles

Send a short intro about yourself and a work sample (GitHub, project, anything). If you can, mention which part of the stack you enjoy most.