Newxel

Full-Stack Developer

Newxel

full-time

Posted on:

Location Type: Hybrid

Location: Warsaw • Poland

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Tech Stack

AWSAzureCloudJavaScriptMongoDBNext.jsNode.jsReact

About the role

  • Play a key role in building an AI-powered production platform for creating TV shows, working across the full stack to develop the creative tools used daily by producers and writers
  • Develop and deliver production-grade web applications using React, Next.js (App Router), and MongoDB/Mongoose, contributing to both frontend UIs and backend API routes
  • Build and maintain rich, interactive editors — including a script editor, storyboard canvas, and video timeline editor — that form the creative core of the platform
  • Integrate and orchestrate AI services (OpenAI, xAI/Grok, ElevenLabs) to power features such as script generation, image/video generation, and text-to-speech, using our custom GenAI pipeline
  • Work with WebCodecs, mp4-muxer, and client-side video/audio processing to enable in-browser media encoding and export capabilities
  • Implement and maintain AWS integrations (S3, Lambda, SQS, CloudFront) for media storage, serverless workflows, and content delivery
  • Collaborate with the team on real-time features using WebSockets, ensuring a responsive and collaborative editing experience
  • Contribute across the entire product lifecycle — from data modeling and API design to polished UI components and production deployment

Requirements

  • B.Sc. in Computer Science or a related field
  • 3+ years of hands-on experience in full-stack web development with strong frontend expertise
  • Strong proficiency in React and Next.js (App Router)
  • Experience with state management solutions such as Zustand or React Context, and modern styling approaches including Tailwind CSS and Radix UI / shadcn-style component libraries
  • Solid backend experience with Node.js, building REST APIs within the Next.js API routes paradigm
  • Practical experience working with MongoDB (Mongoose) and designing schemas/data models for document databases
  • Experience working with AWS cloud services such as S3, Lambda, SQS, and CloudFront (or equivalent services on Azure)
  • Experience integrating AI/LLM APIs (e.g., OpenAI), including streaming responses and tool-use patterns, into product features
  • Experience building complex interactive UI components such as rich text editors, drag-and-drop interfaces, canvas-based tools, or similar systems
  • Familiarity with JWT-based authentication flows and middleware patterns
  • Excellent communication skills and the ability to collaborate effectively in a team environment
  • Strong product mindset, with the ability to understand creative workflows and translate them into intuitive technical solutions
Benefits
  • Medical insurance
  • Paid vacation and sick leaves
  • MultiSport card
  • Top equipment kit, co-workings
  • Collaborative and innovative work environment
  • Career growth and development opportunities
  • A chance to work with giants of the sports industry
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
ReactNext.jsMongoDBNode.jsREST APIsAWSZustandTailwind CSSJWTAI/LLM APIs
Soft Skills
communicationcollaborationproduct mindset
Certifications
B.Sc. in Computer Science