Senior Software Engineer - 15Five
View Company Profile- Job Title
- Senior Software Engineer
- Job Location
- US, Remote
- Job Description
- 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 DetailsWhat You’ll Do
- 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.
What You Bring
- 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.
Nice to Have
- 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.
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.
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15Five Company Size
Between 200 - 500 employees
15Five Founded Year
2011
15Five Total Amount Raised
$94,100,000
15Five Funding Rounds
View funding detailsSeries C
$52,000,000 USD
Series B
$30,700,000 USD
Series A
$8,200,000 USD
Seed
$2,200,000 USD
Seed
$1,000,000 USD