Senior Software Engineer I, Flywheel Delight

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Senior Software Engineer I – Flywheel Delight

At HubSpot, we’re on a mission to help millions of organizations grow better. Our platform is used by businesses worldwide to manage their marketing, sales, service, and operations — and under the hood, our product is built to be flexible, secure, and empowering for both our customers and our own engineering teams. We believe in autonomy, curiosity, and building a workplace where everyone can thrive .

Meet the Team: CS on Service Hub – Flywheel Group

The Flywheel Group supports HubSpot’s vision to build a product that powers its own teams — “HubSpot runs on HubSpot.” This team builds the core experience that enables Customer Success and Customer Service reps to operate efficiently within the HubSpot platform.

Our work focuses on creating the next generation of rep experiences:

• A central, intelligent interface that supports reps with contextual data and actionable alerts
• Tools that help identify high-impact opportunities and drive consistent execution
• AI-powered experiences to eliminate repetitive tasks and enhance workflows

The features built by this team don’t just empower HubSpot’s internal teams — they often evolve into externally available functionality for our customers, especially as we grow upmarket.

What’S The Day-To-Day Like?

• End-to-end ownership of new features, often initiated by engineers themselves
• Collaborating closely with CS reps to understand needs and iterate rapidly
• Building backend systems (Java required), while contributing across the stack when needed (React experience preferred)
• Partnering with data scientists to surface insights and build intelligence into workflows
• Embracing a “ship to learn” mindset — using experimentation and feedback to guide development
• Operating in a high-trust, high-autonomy environment where engineers are expected to take initiative

You May Be A Great Fit If You:

• Have strong backend experience and a willingness to work across the stack
• Think like an owner and love learning about the business
• Care deeply about the impact of what you’re building and the problems you’re solving
• Are comfortable working closely with users (CS reps) and iterating quickly based on feedback
• Thrive in a fast-moving environment with a high degree of autonomy and ownership
• Are excited about leveraging AI and data science in real-world, practical applications
• Hold yourself to a high standard of code quality and take accountability for delivery
• Are comfortable navigating ambiguity and contributing to shaping the team’s direction

Why Join This Team?

• Meaningful Impact: The features you build will directly support HubSpot’s CS teams — and scale to customers.
• AI-Powered Innovation: Partner with data scientists to drive intelligent workflows.
• Engineer-Led Problem Solving: Engineers are encouraged to propose and drive initiatives.
• Growth-Focused Culture: Fast iteration cycles, regular feedback, and space to experiment.
• Psychological Safety: The team iterates quickly in a safe, collaborative environment designed for learning.

If you’re excited to build high-impact, AI-powered tools that serve both internal and external users — and you love solving complex problems alongside a collaborative team — we’d love to hear from you.

This role can be remote from within Ireland, hybrid or in-office (Dublin)

We know the confidence gap and impostor syndrome can get in the way of meeting spectacular candidates, so please don’t hesitate to apply — we’d love to hear from you.

If you need accommodations or assistance due to a disability, please reach out to us using this form.

At HubSpot, we value both flexibility and connection. Whether you’re a Remote employee or work from the Office, we want you to start your journey here by building strong connections with your team and peers. If you are joining our Engineering team, you will be required to attend a regional HubSpot office for in-person onboarding. If you join our broader Product team, you’ll also attend other in-person events such as your Product Group Summit and other gatherings to continue building on those connections.

If you require an accommodation due to travel limitations or other reasons, please inform your recruiter during the hiring process. We are committed to supporting candidates who may need alternative arrangements

Massachusetts Applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Germany Applicants: (m/f/d) - link to HubSpot's Career Diversity page here.

India Applicants: link to HubSpot India's equal opportunity policy here.

About Hubspot

HubSpot (NYSE: HUBS) is an AI-powered customer platform with all the software, integrations, and resources customers need to connect marketing, sales, and service. HubSpot's connected platform enables businesses to grow faster by focusing on what matters most: customers. 

At HubSpot, bold is our baseline. Our employees around the globe move fast, stay customer-obsessed, and win together. Our culture is grounded in four commitments: Solve for the Customer, Be Bold, Learn Fast, Align, Adapt & Go!, and Deliver with HEART. These commitments shape how we work, lead, and grow.

We’re building a company where people can do their best work. We focus on brilliant work, not badge swipes. By combining clarity, ownership, and trust, we create space for big thinking and meaningful progress. And we know that when our employees grow, our customers do too.

Recognized globally for our award-winning culture by Comparably, Glassdoor, Fortune, and more, HubSpot is headquartered in Cambridge, MA, with employees and offices around the world.

Explore More:

• HubSpot Careers
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