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Lead Full-Stack Engineer

OnHires.com

Office

any, any

Full Time

Position: Lead Full-Stack Engineer

Location: Remote (EU-based)

We’re looking for a Lead Full-Stack Engineer who thrives on building products end-to-end.

This role is 90% hands-on coding on a modern stack, with strong involvement in architecture decisions, product direction, and technical leadership.

About The Company

  • A fast-growing European SaaS company in the subscription economy, providing technology that helps consumers choose and manage broadband, mobile, energy, gas, streaming, and financial subscriptions.
  • Their platform powers real-time comparison, bill analysis, and subscription management across multiple customer platforms, serving hundreds of thousands of users monthly.
  • They are now entering a new growth phase - expanding across Europe and integrating AI capabilities.

Responsibilities

  • Lead Development Of Core Products:

  • OCR platform processing >500K utility bills
  • Scalable subscription checkout systems
  • High-traffic broadband coverage APIs (300K+ checks/month)
  • Conversational AI agents with LLM integrations
  • New data products and APIs for enterprise clients
  • Take full ownership of architecture, performance, and deployment
  • Collaborate directly with founders and shape product direction
  • Maintain and improve existing services (performance, reliability, scalability)
  • Frontend: React + TypeScript (Redux, Material-UI, Vite)
  • OCR platform processing >500K utility bills
  • Scalable subscription checkout systems
  • High-traffic broadband coverage APIs (300K+ checks/month)
  • Conversational AI agents with LLM integrations
  • New data products and APIs for enterprise clients
  • Take full ownership of architecture, performance, and deployment
  • Collaborate directly with founders and shape product direction
  • Maintain and improve existing services (performance, reliability, scalability)
  • Frontend: React + TypeScript (Redux, Material-UI, Vite)
  • Scalable subscription checkout systems
  • High-traffic broadband coverage APIs (300K+ checks/month)
  • Conversational AI agents with LLM integrations
  • New data products and APIs for enterprise clients
  • Take full ownership of architecture, performance, and deployment
  • Collaborate directly with founders and shape product direction
  • Maintain and improve existing services (performance, reliability, scalability)
  • Frontend: React + TypeScript (Redux, Material-UI, Vite)

Tech Stack

  • Backend: Python (Serverless Framework)
  • Database: PostgreSQL (RDS), DynamoDB
  • AI: LLMs via API (Claude Code, Cursor, or similar)
  • Infrastructure: AWS (Lambda, API Gateway, S3, CloudFront, CloudWatch, IAM, VPC, SQS), Firebase
  • 8+ years of full-stack development experience
  • Strong background in React + TypeScript + Python (Serverless)
  • Solid understanding of AWS architecture
  • Proven experience in SaaS / B2B platforms or startups
  • Backend: Python (Serverless Framework)
  • Database: PostgreSQL (RDS), DynamoDB
  • AI: LLMs via API (Claude Code, Cursor, or similar)
  • Infrastructure: AWS (Lambda, API Gateway, S3, CloudFront, CloudWatch, IAM, VPC, SQS), Firebase
  • 8+ years of full-stack development experience
  • Strong background in React + TypeScript + Python (Serverless)
  • Solid understanding of AWS architecture
  • Proven experience in SaaS / B2B platforms or startups

Requirements

  • Curiosity and drive to learn new tools and frameworks quickly
  • EU-based, with the right to work in the EU

What Makes This Role Stand Out

  • You’ll own the full stack - from architecture to deployment
  • Small, product-driven team with direct impact on company direction
  • Fast-moving environment, no bureaucracy or legacy monoliths
  • Real product traction and profitability - scaling across Europe
  • Unique work culture: full remote setup, optional retreats (Alps & Mediterranean), and focus on autonomy + accountability

Lead Full-Stack Engineer

Office

any, any

Full Time

October 17, 2025

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OnHires

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