Frontend Developer
Poland | Remote | B2B
We’re a fast-growing AI wellness startup developing a personal training platform that makes fitness more intelligent, personalized, and engaging.

The Frontend Engineer role plays a key role in improving user activation and conversion across web and in-app experiences. This role focuses on building and optimising onboarding flows, landing pages, and experiments through A/B testing, working closely with product and design to deliver measurable impact.

Responsibilities
  • Work with the user activation by running A/B tests on web-onboardings and creating new funnels
  • Create new landing pages on website
  • Work with HTML templates inside emails and the mobile application web-view
  • Participate in requirement analysis, solution design, and implementation phases of the project lifecycle
  • Analyse requirements and collaborate with team members to produce thoughtful software designs
  • Code review

We expect that you have
  • Proven experience as a Web developer (4+ years)
  • Strong experience developing with React, TypeScript and Next.js
  • Good knowledge of HTML, CSS
  • Ability to create readable code
  • Experience with implementing adaptive web design for mobile and desktop
  • Ownership mentality - you will work on a critical part of the marketing funnel
  • Experience in writing unit and e2e tests - we use Vitest and Playwright in our project
  • Good estimation skills
  • Fluent English level

Beneficial skills
  • Experience in creating responsive email templates for major email clients (Gmail, Yahoo, Outlook, Apple Mail) via Sendgrid and Braze
  • Experience in creating Braze in-app campaigns
  • Understanding of cloud technologies, proficiency in AWS
  • Preferably, a degree in Information Technology, Software Engineering, or a related field
  • Highly interested in a fast-paced software development environment
  • Enthusiasm for learning and continuous improvement
  • Passion for Health & Fitness

How we work
  • Work in fast-growing company (growth of user base during 2023 more than 10X times)
  • Fast time to market (usually one release per week)
  • Codebase covered with unit and e2e tests
  • Cloud infrastructure in AWS
  • Production monitoring and alert systems
  • Code review process
  • Performance tests
  • CI-CD