Principal Software Engineer, Data Infrastructure About the Team HubSpot’s Data Infrastructure team builds the shared data store platforms that power the company’s products and internal systems at scale. The team’s mission is to provide a unified data platform and deliver databases as a service in a way that makes it easy, performant, and reliable for engineers across HubSpot to build on top of it. This team owns and evolves some of the most critical foundational systems inside HubSpot, including HBase, Kafka, Elasticsearch, MySQL/Vitess, Hadoop, Iceberg, and Qdrant, along with the platform capabilities, abstractions, and workflows that make those systems usable by product teams. The scope spans big data, SQL and storage infrastructure, batch processing, stream processing, and search. This is not a team focused on simply administering existing systems. It is an engineering organization responsible for shaping how HubSpot builds on top of its data stores over the long term. About the Role We’re looking for a Principal Software Engineer to help shape the technical future of Data Infrastructure at HubSpot. This is a deeply hands-on role for a builder who wants to own the architecture and evolution of the foundational data systems behind HubSpot’s products. As a Principal Engineer, you will help define how our data stores should scale, how developers should interact with them, and what platform patterns we should create so teams across HubSpot can build faster on top of reliable, high-leverage infrastructure. At HubSpot, Principal Engineers are expected to stay close to the code, lead high-impact initiatives end-to-end, and influence technical direction well beyond a single team. This role is for someone who can move between storage engines, developer-facing platform design, and large-scale architectural bets while remaining a hands-on builder throughout. Key Expectations Own the future of HubSpot’s data stores Shape the technical direction for the data platforms that underpin HubSpot’s products, with a focus on the data stores themselves and the systems around them. Drive architectural decisions across storage, access patterns, scaling models, tenancy, performance, and developer ergonomics. Help define what the next generation of HubSpot’s database platform should look like, not just how to operate the current one. Be a deeply hands-on, high-leverage builder Write production code regularly and lead complex initiatives from idea to rollout. Build internal frameworks, APIs, and platform capabilities that make HubSpot’s data stores easier to adopt, extend, and evolve. Turn ambiguous infrastructure problems into simple, scalable systems and clear technical direction. Lead platform architecture across multiple domains Work across big data, SQL/Vitess, batch, stream processing, and search to establish consistent platform patterns where they matter and domain-specific depth where they do not. Define reusable abstractions for data storage, ingestion, processing, and access that reduce fragmentation across the engineering organization. Push for simplicity, clarity, and extensibility in systems that can easily become overly bespoke or operationally heavy. Influence across the broader engineering org Partner with engineering and product leaders to align infrastructure direction with what HubSpot needs to build next. Work horizontally across teams to guide technical tradeoffs, unblock difficult decisions, and raise the architectural bar for platform work. Act as a multiplier through design reviews, technical mentoring, and principled decision-making on the most important systems in the space. What You Bring Deep experience building and evolving large-scale distributed systems, especially storage systems, data infrastructure, or foundational backend platforms. Strong architectural instincts with a bias toward simplicity, consistency, clear boundaries, and long-term platform leverage. A track record of owning and delivering complex, cross-team technical initiatives with product-line or company-level impact. Comfort working across multiple layers of the stack, from storage engines and data flows to APIs, internal frameworks, and developer experience. A hands-on mindset. You lead by building, debugging, reviewing, and shipping, not by staying removed from the systems you influence. The ability to move into unfamiliar technical territory quickly, form strong opinions grounded in first principles, and help teams make better long-term decisions. Why this role matters HubSpot’s future depends on data platforms that are not only reliable, but also powerful building blocks for product innovation. The Principal Software Engineer in Data Infrastructure will help determine how those building blocks are designed, how they scale, and how engineers across HubSpot use them to create the next generation of our products. 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. 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Principal Software Engineer – Data Infrastructure

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