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TechTree

Full-Stack Engineer

TechTree
Poland · Full-time · Mid-Senior

About The Company

Our client is a fast-scaling research and product company defining the frontier of Audio AI. Their technology is used by millions of individuals and leading global enterprises to power applications in support, sales, education, and media. Backed by world-class investors, such as NEA, a16z and ICONIQ Growth, they are one of the fastest-growing AI startups in the world—and they’re only just getting started.

About The Role

Develop and maintain front-end and back-end components of AI products, collaborate with teams, and own features end-to-end in a fast-growing AI startup.

The role involves developing and maintaining both front-end and back-end components of the product suite, which is built on top of cutting-edge voice models used by millions worldwide.

General Responsibilities Include

  • Building and maintaining scalable products and platforms powered by state-of-the-art AI.
  • Owning features end-to-end across the stack, from conception to deployment.
  • Collaborating with Engineering, Growth, and Sales teams to design solutions for critical customer and internal workflows.
  • Taking high degrees of ownership while influencing the direction of features and products.

Specific Responsibilities May Involve

  • Scoping and building new proof-of-concept products (sometimes directly with partners) that can later scale to new markets.
  • Enhancing existing products to ensure they remain intuitive, powerful, and aligned with the latest AI breakthroughs.
  • Strengthening internal infrastructure for reliability, performance, and security at scale.
  • Collecting, managing, and processing massive datasets to support the next generation of generative voice models.

Requirements

  • Proven ability to solve hard problems through past projects, GitHub contributions, or designs
  • Expertise in Python
  • Experience in Web Development with TypeScript/React
  • Familiarity with APIs, cloud infrastructure, storage solutions, and common system design patterns
  • Strong knowledge of data structures and scalable architectures

Required Skills

  • Python
  • Web Development
  • TypeScript
  • React
  • APIs
  • cloud infrastructure
  • storage solutions
  • system design patterns
  • data structures
  • scalable architectures
  • test design
  • security awareness

Benefits

  • Annual learning & development stipend
  • Travel stipend to meet colleagues worldwide
  • Annual company-wide offsite in a new destination
  • Monthly coworking allowance if not near a hub office

Team members

  • Remote-first, with optional offices in Bangalore, Dublin, London, New York, San Francisco, Tokyo, and Warsaw.

Salary: 80000 - 120000 EUR

Equity: equity package, 4 year vesting, grant up to few hundred thousand EUR

Key Skills

Ranked by relevance

ai data structures storage cloud san
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Posted
Oct 29, 2025
Type
Full-time
Level
Mid-Senior
Location
Warsaw
Company
TechTree

Industries

Software Development

Categories

Engineering Information Technology

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