Senior Software Engineer (Core Product - C#) - TrainingPeaks

Senior Software Engineer

Join the team powering the world's best endurance athletes.

At TrainingPeaks, we believe that behind every great athlete is a great coach and the right technology to help them reach their potential. Our platform is trusted by Tour de France winners, Olympic gold medalists, and everyday endurance athletes to plan, track, and analyze their training. Whether you're a performance-driven athlete, a passionate coach, or someone who simply thrives on building tools that empower others, TrainingPeaks is where ambition meets impact.

As part of the Peaksware portfolio, consisting of brands like TrainingPeaks, MakeMusic, Alfred Music, TrainHeroic, we're united by a shared mission : to create software that transforms deliberate practice into performance. At Peaksware, we don't just build products. We build communities of motivated people chasing progress, including athletes, musicians, performers, and the teams that support them.

Join TrainingPeaks as a Senior Software Engineer on our Core Product team to build the future of endurance training.

As a Senior Software Engineer, you'll play a key role in building the technical foundation of tools to empower athletes and coaches to achieve their goals. You'll take ownership of critical systems from concept to deployment and beyond.

You'll build and maintain scalable services, evolve APIs, and transform modern architectures.

You'll be encouraged to experiment, grow your skills, and lead meaningful improvements to our tech and our team. If you're passionate about clean code, system performance, and real-world impact, we want to hear from you.

This role is part of the Engineering Team and reports to the Director, Engineering.

Core Functions :

• Build features that athletes and coaches love. Regularly ship thoughtful, user-focused functionality that evolves with our growing customer base and raises the bar for performance.
• Tackle complex technical challenges to ensure our systems stay fast, reliable, secure, and resilient.
• Design and implement backend and frontend systems that elevate team productivity, code quality, and long-term maintainability.
• Craft stable, scalable, and well-documented APIs that power our products and support our internal and external development partners.
• Help elevate the skills of your teammates by coaching junior engineers and sharing your expertise in code reviews and architecture discussions.
• Participate in our on-call rotation (~1 week per quarter) to keep our platform running smoothly and reliably.
• Help foster open communication, promote best practices, and explore emerging technologies to keep our team sharp and forward-thinking.