Full Stack Engineer (Typescript/Js)

Full Stack Engineer (Typescript/Js)
Lisboa
Lisboa, Lisboa, Portugal

Senior Full-Stack Software Engineer

Lisbon, Portugal

(Hybrid – remote start possible) | Full-time, Permanent

Competitive salary with potential share options for
- impact talent

About Us

Millions of

triathletes, runners, and cyclists

train indoors on

Zwift, My
Whoosh, Rouvy, and Peloton

, with fitness gaming exploding, but

swimmers have been left behind

.

We're changing that.

We're building the

world's first Virtual Swimming platform

, connecting

smart equipment,
- time performance data, and immersive gameplay

to make swim training as

engaging, measurable, and social

as every other sport.

Over

20, 000 triathletes, swimmers, and surfers

already train using our first product. Our first Virtual Swimming MVP is live, evolving fast, and preparing for launch.

We're now assembling a

high-performance team of developers, engineers, and innovators

to bring this new category to life.

The Role

We're looking for a

Senior Full-Stack Software Engineer

who thrives in
- moving,
- growth environments and loves working across

web and mobile

platforms.

You'll help shape the architecture and user experience of our connected ecosystem, integrating

real-time data, gameplay, and community features

across

web, i
OS, and Android

.

You'll work closely with gameplay engineers, designers, and product leads to:

• Build and optimize scalable web and mobile applications using
  
  React, React Native, , and Type
  Script
  
  .
• Integrate
  
  hardware data and
  - time performance metrics
  
  into mobile and web experiences.
• Contribute to
  
  architecture decisions
  
  and development standards as we scale.
• Ensure smooth deployment and performance in
  
  AWS
  
  .
• Collaborate in person from our
  
  Lisbon HQ
  
  at least three days a week once settled.

This role suits someone
- on, collaborative, and comfortable owning features

end to end

, from backend APIs to frontend delivery.

You'll Bring

• 5+ years of experience in
  
  full-stack or
  - heavy
  
  roles.
• Strong proficiency in
  
  React, React Native, , and Type
  Script
  
  .
• Proven experience shipping
  
  mobile apps
  
  (App Store / Play Store).
• Solid understanding of
  
  RESTful APIs,
  - time communication, and websockets
  
  .
• Experience with
  
  AWS
  
  (Lambda, API Gateway, Dynamo
  DB, S3, Cloud
  Front).
• Comfort using
  
  AI-assisted coding tools
  
  (e. G. Copilot, Claude).
• Experience with
  
  automation tools
  
  like n8n, Zapier, or Make.
• A
  
  startup mindset
  
  – you move fast, take ownership, and make things happen.

Bonus points if you:

• Worked with
  
  Io
  T, BLE
  
  , or
  - fitness hardware.
• Built or played with
  
  Unreal Engine
  
  , multiplayer, or game telemetry.
• Have a passion for
  
  triathlon, swimming, cycling,
  
  or sports in general.

Our Culture

We take ownership.

We move fast.

We back each other.

We keep leveling up.

We enjoy the ride.

Benefits & Perks

• 27 paid vacation days + flexible hours (we train too).
• Performance-based rewards and potential equity opportunities for the right talent.
• Fitness partner discounts and full access to our gear.
• Work directly with elite triathletes and performance experts.
• Meal allowance and a hybrid setup: typically 3 days in the office, 2 remote, with flexibility when sprint cycles demand deeper focus or collaboration.

Apply now:

Use the subject line:

Senior Full-Stack Engineer – (Your Name)

Tell us

why this excites you

and

what you'd bring to the team and our community

.

Once we connect, we'll share the full detailed JD and technical brief so you can explore the role in depth.

Let's go.

Excited to hear from you