cover image
HubSpot

Senior Software Engineer I, Data Integration (Apps)

On site

Ghent, Belgium

Senior

Full Time

22-01-2026

Share this job:

Skills

Java Ruby HubSpot Kubernetes Monitoring Test Sales CRM Motivation Programming Autonomy Marketing Kafka Microservices

Job Specifications

About The Job

At HubSpot, we’re building a world-class CRM, Marketing, Sales, and Services platform that helps small and medium-sized businesses grow better. More than 250,000 customers around the globe rely on our products, and we’re continuing to invest deeply in engineering to scale and innovate.

We’re looking for a Senior Software Engineer to join our Sync Apps team, a core team in HubSpot’s Data Hub. Data Hub is one of the fastest-growing parts of HubSpot’s ecosystem and helps organizations elevate their data through integrations, AI-powered data management, etc.

Our Sync App team is mainly working on two products:

Data Sync: a real-time two-way sync platform that connects external SaaS tools with HubSpot’s CRM. On top of that, the team is also working on
Data Studio: a brand new data ingestion platform, from where data can be combined, enhanced and activated upon, which is now more relevant than ever in the current AI age.

They are responsible for building and maintaining the connectivity with our third party APIs and connecting with our platform layer. They will build out our generic app connection framework whilst deepening our app-specific use cases and knowledge.

In This Role, You'll Get To

Build and maintain connections between our sync platform and third party APIs
Use and improve our self-built integration framework
Gain knowledge on the various integrations and make customer-centric decisions based on that
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 more junior engineers when needed.

We're Looking For People Who Can

Have some experience building and operating backend services
Skilled in one primary programming language (Java or Ruby), with the ability and motivation to learn a second language on the job
Have a good understanding of integration/API patterns.
Enjoy solving technical problems and thinking through trade-offs.
Communicate clearly and collaborate effectively with cross-functional, distributed teams.
Take ownership, stay curious, and are eager to learn new concepts.
Thrive in small, customer-driven teams (3–5 engineers).

What's in it for you?

Join an experienced and passionate team of developers.
Significant autonomy and ownership in a product-focused engineering culture.
Opportunity to ship code that directly impacts a product relied upon by many thousands of customers every day
Various growth paths within the company
Above-market compensation package, including stock grants
Our Ghent office is located in the historical city centre and offers a well-equipped, comfortable space for collaboration when you’re onsite

Tech Stack

Primary languages: Java, Ruby
Other technologies: Kafka, Kubernetes, RPC, internal developer tools
Platform: Microservices running in Kubernetes, built for scale and reliability

We believe great work can happen anywhere. Whether you prefer the energy of an office or the flexibility of working from home in Belgium, our hybrid model is designed to support how you work best.

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 co

About the Company

HubSpot is a leading CRM platform that provides software and support to help businesses grow better. Our platform includes marketing, sales, service, and website management products that start free and scale to meet our customers’ needs at any stage of growth. Today, thousands of customers around the world use our powerful and easy-to-use tools and integrations to attract, engage, and delight customers. HubSpot's award-winning culture has been recognized by Glassdoor, Great Place to Work, Comparably, Fortune, Entrepreneur, ... Know more