Senior Full-Stack Software Engineer
Lisbon, Portugal(Hybrid – remote start possible) | Full-time, Permanent
Competitive salary with potential share options for high-impact talent
About Us
Millions oftriathletes, runners, and cycliststrain indoors onZwift, MyWhoosh, Rouvy, and Peloton, with fitness gaming exploding, butswimmers have been left behind.
We're changing that.
We're building theworld's first Virtual Swimming platform, connectingsmart equipment, real-time performance data, and immersive gameplayto make swim training asengaging, measurable, and socialas every other sport.
Over20,000 triathletes, swimmers, and surfersalready train using our first product.
Our first Virtual Swimming MVP is live, evolving fast, and preparing for launch.
We're now assembling ahigh-performance team of developers, engineers, and innovatorsto bring this new category to life.
The Role
We're looking for aSenior Full-Stack Software Engineerwho thrives in fast-moving, high-growth environments and loves working acrossweb and mobileplatforms.
You'll help shape the architecture and user experience of our connected ecosystem, integratingreal-time data, gameplay, and community featuresacrossweb, iOS, and Android.
You'll work closely with gameplay engineers, designers, and product leads to:
Build and optimize scalable web and mobile applications usingReact, React Native, Node.Js, and TypeScript.
Integratehardware data and real-time performance metricsinto mobile and web experiences.
Contribute toarchitecture decisionsand development standards as we scale.
Ensure smooth deployment and performance inAWS.
Collaborate in person from ourLisbon HQat least three days a week once settled.
This role suits someone hands-on, collaborative, and comfortable owning featuresend to end, from backend APIs to frontend delivery.
You'll Bring
5+ years of experience infull-stack or backend-heavyroles.
Strong proficiency inReact, React Native, Node.Js, and TypeScript.
Proven experience shippingmobile apps(App Store / Play Store).
Solid understanding ofRESTful APIs, real-time communication, and websockets.
Experience withAWS(Lambda, API Gateway, DynamoDB, S3, CloudFront).
Comfort usingAI-assisted coding tools(e.G. Copilot, Claude).
Experience withautomation toolslike n8n, Zapier, or Make.
Astartup mindset– you move fast, take ownership, and make things happen.
Bonus points if you:
Worked withIoT, BLE, or connected-fitness hardware.
Built or played withUnreal Engine, multiplayer, or game telemetry.
Have a passion fortriathlon, 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 uswhy this excites youandwhat 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!