Full Stack Engineer – Back-End Leaning

About The Company

Our client is a research and product company defining the frontier of Audio AI. Their technology is used by millions of individuals to read articles, voice over videos, and reclaim voices lost from disability. Leading developers and enterprises rely on their platform to create AI agents for support, sales, and education. Founded in 2023, they quickly reached unicorn status, having raised a $180 million Series C in early 2025 at a $3.3 billion valuation, backed by some of the world’s top investors and tech founders, such as NEA, a16z and ICONIQ Growth. Only two years in, they are scaling at hyper-growth speed—and this is just the beginning.

About The Role

Seeking Back-End Engineers to enhance system functionality, build on voice models, improve products, and collaborate on customer-focused solutions. Expertise in Python required.

Responsibilities

Our client is looking for Back-End Engineers to expand and strengthen the functionality of their systems. Depending on the project, responsibilities may include:

• Building and maintaining the platform on top of cutting-edge voice models used by millions.
• Improving products to ensure they are intuitive, powerful, and leverage the latest research breakthroughs.
• Adding significant new functionality and integrating with consumer/enterprise solutions.
• Maintaining and scaling internal infrastructure to keep systems live, performant, and secure.
• Collaborating closely with engineers from the frontend, growth, and sales teams to design customer-focused solutions.
  
  

Requirements

• Expertise in Python
• Strong background in backend development
• Familiarity with common software and system design patterns
• Understanding of test design and security fundamentals
• Experience with Kubernetes
• Knowledge of Stripe or other payment processing providers
• Basic understanding of how AI models work
  
  

Required Skills

• Python
• backend development
• software and system design patterns
• APIs
• cloud tools
• storage
• data structures
• test design
• security fundamentals
• Kubernetes
• Stripe
• payment processing providers
• AI models
  
  

Benefits

• Compensation: €80,000–€120,000 + equity
• Learning & development: annual discretionary stipend
• Social travel: annual discretionary stipend to meet colleagues worldwide
• Annual company offsite: a new location every year
• Coworking support: monthly stipend if you’re not near a hub office
  
  

Team members

• High velocity – rapid experimentation, lean autonomous teams, minimal bureaucracy.
• Impact > titles – no rigid job titles, just measurable impact.
• AI-first – every team leverages AI to move faster and deliver better results.
• Excellence everywhere – quality in everything, matching their AI models.
• Global team – remote-first with optional offices across major hubs.
  
  

Salary: 80000 - 120000 EUR

Equity: equity