Senior Full-Stack Software EngineerLisbon, Portugal(Hybrid – remote start possible) | Full-time, PermanentCompetitive salary with potential share options for high-impact talentAbout UsMillions 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 RoleWe'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 using React, React Native,, and TypeScript .
Integrate hardware data and real-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 hands-on, collaborative, and comfortable owning featuresend to end, from backend APIs to frontend delivery.You'll Bring5+ years of experience in full-stack or backend-heavy roles.Strong proficiency in React, React Native,, and TypeScript .
Proven experience shipping mobile apps (App Store / Play Store).
Solid understanding of RESTful APIs, real-time communication, and websockets .
Experience with AWS (Lambda, API Gateway, DynamoDB, S3, CloudFront).
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 IoT, BLE, or connected-fitness hardware.Built or played with Unreal Engine, multiplayer, or game telemetry.Have a passion for triathlon, swimming, cycling, or sports in general.Our CultureWe take ownership.We move fast.We back each other.We keep leveling up.We enjoy the ride.Benefits & Perks27 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