Senior Frontend Engineer - Freelance

bsport; Barcelona; On-site; EUR 60,000 - 90,000; Full time

Job summary

bsport is seeking a Senior Front-end Engineer to strengthen the team for a short-term project and increase delivery capacity. You will build intuitive React interfaces for onboarding and self-service, enabling new customers to start with minimal internal support.

Join the Ops Engineering team to automate workflows, integrate with Notion, Zapier, HubSpot and Slack, and deliver high-quality features within a tight timeline.

Qualifications

• Proven experience building front-end apps using React and TypeScript.
• Strong knowledge of Redux for state management.
• Ability to quickly become productive in an existing codebase with limited onboarding.

Responsibilities

• Develop wizard-style onboarding and self-service flows.
• Build and extend self-serve migration capabilities for customers.
• Collaborate with Ops Engineering to ship features quickly and reliably.

Skills

React

TypeScript

Redux

Tools

Notion

Zapier

HubSpot

Slack

Job description

We are bsport. The place to be!

bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success.

Since we launched in 2019, we have already achieved the following:

• We’ve built a community of over 7 million users
• In December 2024 we have finalised the biggest Series B (€30 million)
• Grown our team to more than 200 employees
• Experienced strong worldwide growth (75% YoY) and rapid geographical expansion (+20 countries)

We’re continuing to grow to become the #1 tech partner for boutique studios in Europe and the rest of the world!

Join us to write the next chapter of your career!

About the role:

We’re looking for a Senior Front-end Engineer to strengthen the team for a short-term project and increase our delivery capacity.

You’ll work on customer onboarding and self-service initiatives, building intuitive React interfaces that allow new customers to get started with bsport with less dependency on our internal teams.

This is a hands‑on mission where you’ll need to become productive quickly, work autonomously, and deliver high-quality features within a short timeframe.

About the team

You’ll join our Ops Engineering team, whose mission is to enable bsport’s growth and efficiency through technology.

The team builds internal and customer-facing tools that help bsport employees work more efficiently, automate repetitive workflows, and scale our operations. This includes:

• Simplifying the onboarding experience for new customers, including data migration and platform discovery
• Automating workflows and repetitive tasks for internal teams
• Integrating with third-party platforms such as Notion, LLM providers, Zapier, HubSpot and Slack
• Providing technological solutions to support the growth and scaling of bsport’s different departments

What will be your impact:

You’ll contribute to several onboarding and self-service projects, including:

• Building a wizard-style onboarding form that guides users through the initial setup process
• Developing a self-onboarding flow allowing new customers to sign up and get started without going through the back-office
• Developing and extending our self-serve migration capabilities, helping customers migrate their data independently
• Contributing to the self-serve app release experience
• Implementing designs using our internal design system and ensuring a consistent user experience
• Collaborating closely with the Ops Engineering team to ship features quickly and reliably

You would be great fit if you have:

• Strong experience building front-end applications with React and TypeScript
• Solid experience with Redux
• Able to become productive quickly in an existing codebase and development environment
• Comfortable working autonomously with limited onboarding or training
• Strong delivery mindset and ability to move quickly without compromising code quality
• Experience building complex or multi-step user flows is a plus
• Experience working with an existing design system is a plus
• Good understanding of product requirements and ability to translate designs into high-quality, maintainable interfaces
• Strong written communication skills in English
• Previous experience in a startup or scale-up environment is a plus

Diversity is one of our most valuable assets, and we are committed to fostering an inclusive environment where everyone can contribute their best work. We welcome applicants from all backgrounds, identities, and experiences to help us build a more inclusive, equitable team.

What this mission offers

• A focused, hands-on mission with direct impact on bsport's customer onboarding experience
• The opportunity to work on self-service products that directly improve operational efficiency and scalability
• A modern React/TypeScript stack
• A short-term mission with the possibility of extension depending on the team's needs
• A high-growth environment with a strong sense of ownership and engineering standards