Senior Software Engineer I

Senior Software Engineer I, Data Integration (Apps) Join HubSpot as a Senior Software Engineer in our Sync Apps team, part of the Data Hub that empowers customers with AI‑powered data integration. About The Job At HubSpot, we build a world‑class CRM, marketing, sales, and services platform that helps small and medium‑size businesses grow. The Data Hub is one of the fastest growing parts of HubSpot’s ecosystem, helping organizations elevate their data through integrations, AI‑powered data management and more. Key Responsibilities Build and maintain connections between our sync platform and third‑party APIs. Use and improve our self‑built integration framework. Gain knowledge of integration patterns and make customer‑centric decisions. Develop monitoring and observability tools to ensure integration health. Work in a high‑trust environment with product ownership and autonomy. Collaborate with teams across app integrations, product, and design. Mentor junior engineers when needed. Expectations Experience building and operating backend services. Skilled in one primary programming language (Java or Ruby) and motivated to learn a second. Strong understanding of integration/API patterns. Enjoy solving technical problems and thinking through trade‑offs. Effective communication and collaboration with cross‑functional, distributed teams. Ownership mindset, curiosity, and eagerness to learn new concepts. Thrives in small, customer‑driven teams (3–5 engineers). Benefits & Growth Opportunities Join an experienced and passionate team of developers. Significant autonomy and ownership in a product‑focused engineering culture. Opportunity to ship code directly impacting a product used by thousands of customers daily. Growth paths within the company. Above‑market compensation package, including stock grants. Ghent office with well‑equipped collaborative space. Tech Stack Primary languages: Java, Ruby. Other technologies: Kafka, Kubernetes, RPC, internal developer tools. Platform: Microservices running in Kubernetes, built for scale and reliability. Additional Information We believe great work can happen anywhere. Whether you prefer an office or working from home in Belgium, our hybrid model is designed to support how you work best. Please note: Recruiting team will have limited availability over the next two weeks. Application review will resume in early January. We know the confidence gap and impostor syndrome can hinder great 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 (URL). 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): HubSpot's Career Diversity page (URL). India applicants: HubSpot India's equal opportunity policy (URL). 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. Our culture is grounded in four commitments: Solve for the Customer, Be Bold, Learn Fast, Align, Adapt & Go, and Deliver with HEART. HubSpot is headquartered in Cambridge, MA, with employees and offices around the world. Explore More HubSpot Careers Life at HubSpot on Instagram HubSpot may use AI to help screen or assess candidates, but all hiring decisions are always human. More information can be found here (URL). By submitting your application, you agree that HubSpot may collect your personal data for recruiting, global organization planning, and related purposes. Refer to HubSpot's Recruiting Privacy Notice for details on data processing and your rights. Seniority level Mid‑Senior level Employment type Full‑time Job function Information Technology Industries Software Development #J-18808-Ljbffr