Senior Software Engineer
15Five
Software Engineering
United States · Remote
USD 120,500-160k / year + Equity
Posted on Mar 10, 2026
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
- Build and evolve 15Five’s Data Intelligence Platform
- Partner across Data Science and Product Engineering
- Elevate engineering quality and culture
- Lead and contribute to initiatives to build AI experience in the Flow of Work, which includes but is not limited to Slack, MS Teams, Calendar, web, and email.
- Build and support 3rd party integrations with platforms like Slack, MS Teams, Google Calendar, Outlook, Zoom, Google Meet etc.
- Follow and implement software engineering best practices, and set the foundations for the Agentic Ecosystem and experience in the Flow of Work.
- Work across a diverse tech stack and gain robust experience with Python, React, JavaScript, Django, FastAPI, DBT, Airflow, Snowflake, Relational and NoSQL Databases, etc.
- Work closely with Product/Software Engineers to design and build new innovative functionality helping managers and organizations; maintain and improve existing functionality to solve customer problems and bring customer delight and satisfaction.
- Leverage AI-assisted tools across the full development lifecycle - from design and code generation to testing, review, and deployment - while ensuring your code is correct, secure, and performant.
- Review code and architecture designs developed by other developers, and contribute to existing documentation along with creating new ones.
- Bring your Product mindset — contribute to the team's strategic planning, helping define the vision, goals, and roadmap.
- 5+ years of experience of software development, including significant experience with algorithms, design patterns and architectural patterns.
- Strong proficiency in programming languages like Python, Java, C++, Go, Scala; as well as SQL, Relational and No-SQL database technologies.
- Experience with cloud-native development environments.
- Familiarity with Python frameworks, especially Django is nice to have.
- Prior experience or familiarity with AI model building and running, or knowledge graphs is a plus.
- Experience integrating AI tooling into day-to-day engineering workflows, including areas like code review, testing, documentation, or CI/CD.
- Experience working remotely and effectively communicating and collaborating with different engineering, product, design, and customer facing teams.
- Experience with agentic systems or autonomous agents.
- Exposure to DBT, Airflow, Snowflake, Django, or similar technologies.
- Background in HR tech, people systems, or performance management.
What You’ll Do
What You Bring
Nice to Have
Work Schedule
Fully Remote, Monday–Friday. Typical hours align with 9am–5pm ET, with flexibility.
Some early‑morning meetings may be required to support cross‑time‑zone collaboration.
We offer amazing benefits that align with our values and culture at 15Five.
Your Health & Wellbeing
Medical, dental, vision with 15Five cost subsidy
Employer paid Short-Term, Long-Term Disability, and Term LifeFamily planning support with enhanced medical plans and consultation programs
Inclusive Benefits Stipend
Access to mental health and wellness resources
Your Life
Flexible Time Off Program
Generous paid leave for new parents
Military leave
Paid Company Holidays
Sabbatical Program
Your Future
401K with 4% Matching after 6 months
Your Work Life
Remote work
Work with experts in leadership, culture, and personal development
For more information see:
Our Mission, Vision, & Values -https://www.15five.com/about
Our People and Culture -https://www.15five.com/about/careers
Our Personal & Professional Development Resources -https://www.15five.com/resources/content-library
Reading over the role description and feeling like you don’t check every box? That’s okay; if you think you have what it takes but don’t necessarily meet all the criteria, please apply—you could be exactly who we are looking for!
15Five follows equitable hiring practices. Our compensation programs are designed to attract, motivate, and retain talented employees who are highly engaged, high performing, and have an exceptional impact on the business and our customers.
The salary range displayed on each job posting reflects the target for new hire salaries for the role across all US locations. Within the range, individual pay is determined by budget allocated for the role and additional factors, including job-related competencies and skills, experience, and relevant education or training. Please note that the compensation details listed in US job postings do not reflect added total compensation including equity or benefits.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
120500 - 160000 USD a year
This role's Total Rewards package includes participation in an annual discretionary company bonus program, equity awards, and comprehensive benefit and wellbeing offering.