Senior Software Engineer - 15five

15Five is the AI-powered performance management platform built for business impact. 15Five’s AI-powered all-in-one people management system is easy to use,
delivers effortless insights, and enables managers to lead with impact so that companies and their people can thrive. Within the flow of work, HR leaders are empowered with data-driven insights and recommendations while managers are transformed into change-makers, accelerating engagement, performance, and retention. 15Five combines generative AI, custom analytics, and human-centered principles within a complete platform, including 360° performance reviews, engagement surveys, goal tracking, manager coaching and training, and ongoing feedback tools like guided 1-on-1s and check-ins.

A career at 15Five is the chance to have high impact in a fast paced, remote startup environment that operates with focus, urgency, and accountability. Every role and every hire meaningfully impacts our trajectory.

We’re a high-performance, high-purpose team that gives you the chance to Build the Future of Work . We run on High Standards and High Support — holding a high bar for results, ownership, clarity, and disciplined execution, while investing in manager enablement, skill development, and whole-person care. We are committed to a No B.S. environment, meaning we anchor ourselves in truth, course-correct in real time, and expect people to lean into direct conversations. We are focused on ensuring every 15Fiver can Work in the Future and that starts with proactively using AI across all aspects of your role to increase leverage, speed, and impact.

If you're energized by a fast pace, high standards, and high accountability for yourself and others, you'll thrive here and we encourage you to apply.

Senior Software Engineer

Remote (US) | Reports to: Sr. Manager of Engineering

About the Role

15Five is a strategic, AI-powered performance management platform that helps organizations drive measurable outcomes across performance, engagement, and retention. 15Five transforms continuous people signals into targeted, data-driven action. By combining performance reviews, engagement surveys, HRIS data, goals, and manager workflows into one connected system, the platform turns insight into execution. Our AI ecosystem blends generative AI, predictive models, and structured people data to deliver intelligent guidance directly in the flow of work —helping Executives, HR leaders, and managers move beyond measuring people outcomes to actively improving them.A career at 15Five is the chance to have high impact in a fast paced, remote startup environment that operates with focus, urgency, and accountability. Every role and every hire meaningfully impacts our trajectory.

Role Details

What You’ll Do

• Lead and contribute to initiatives to build AI experience in the Flow of Work, which includes but is not li