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Senior Software Engineer (Founding Technical Hire)

CareerGenie

CareerGenie

Software Engineering, IT
Barcelona, Spain · Barcelona, Spain
Posted on Jun 5, 2025

Position: Senior Software Engineer (Founding Technical Hire)

Company: Stealth Anti-Counterfeiting Startup (via CareerGenie)

Location: Hybrid (Europe-based preferred)

Compensation: Competitive Salary + Equity

About the Company:

CareerGenie is hiring on behalf of a venture-backed startup that’s reinventing how global industries fight counterfeiting. Leveraging cutting-edge ink detection technology and Digital Product Passports (DPPs), this early-stage team is building a platform to verify product authenticity across sectors like luxury fashion, pharmaceuticals, and consumer electronics.

With a mission to solve a $500B global problem, they’re now looking for a Senior Software Engineer to serve as their first technical hire - owning the architecture and delivery of a scalable, AI-powered solution targeting Fortune 500 clients.

Role Overview:

This is a hands-on, high-impact role where you’ll collaborate directly with the founder to build the company’s core platform from scratch. From AI-powered ink verification to blockchain-enabled product passports, you’ll lead full-stack development and cloud architecture to get the MVP ready for enterprise pilots in just a few months.

Key Responsibilities:

  • Build the Core Platform: Design and develop a full-stack solution (Python/Flask backend, JavaScript frontend) for QR scanning, product tracking, and DPP generation
  • Lead AI/ML Integration: Implement image processing and object detection tools (e.g. OpenCV, YOLO) for ink-based counterfeit detection
  • Architect Cloud Infrastructure: Set up a lean, serverless system on AWS using Lambda, API Gateway, DynamoDB, and S3
  • Manage Data Pipelines: Build robust workflows to handle metadata, user data, and ML outputs
  • Own the Stack: Drive technical decision-making and scale the MVP into a production-grade system
  • Deliver Fast: Build and ship a demo-ready system to pitch to clients like Amazon, Nike, and LVMH

Qualifications:

  • 8+ years of hands-on software engineering experience
  • Full-stack fluency in Python (Flask, SQLAlchemy) and JavaScript (React or similar)
  • Proven AI/ML expertise in real-time video/image processing and object detection
  • Cloud-native skills, especially with AWS (Lambda, DynamoDB, S3, API Gateway)
  • Strong data engineering background with tools like Apache Airflow or AWS Glue
  • Experience with Flutter for mobile app development is a strong plus
  • Startup experience preferred—someone who’s shipped MVPs in fast-paced environments
  • Excellent communicator—able to bridge the gap between tech and business needs

What’s On Offer:

  • Founding Engineer Role: Help define and own the company’s technical future
  • Tangible Impact: Tackle a global issue with cutting-edge, practical technology
  • Enterprise Visibility: Your work will be demoed to some of the world’s biggest brands
  • Equity & Ownership: Competitive equity package in a high-upside early-stage venture
  • Flexible Work: Hybrid setup with room to operate independently and remotely