Senior Software Engineer II, Backend

Who you are

You have 5+ years of backend engineering experience building production systems at scale — you've owned services from design through deployment and have navigated complex distributed systems issues. Your deep expertise in Java and Spring allows you to ship high-throughput APIs that handle millions of requests, and you have strong opinions on service architecture, dependency injection, and testing strategies. You thrive in collaborative environments, working closely with product managers, designers, and researchers to ensure a seamless user experience. You understand the importance of user satisfaction and are driven to enhance the tools that help small and medium-sized businesses grow. You are adaptable and appreciate the flexibility of a hybrid work model, allowing you to balance remote work with in-office collaboration.

Desirable

Experience with cloud platforms like AWS or Azure would be a plus, as would familiarity with microservices architecture. You are comfortable with agile methodologies and have a knack for mentoring junior engineers, sharing your knowledge to help them grow.

What you'll do

As a Senior Backend Engineer at HubSpot, you will write and ship impactful production code that directly contributes to user satisfaction and company growth. You will design, build, and evaluate new features and tools that drive revenue and help businesses grow better. Collaborating in a diverse, cross-functional team, you will ensure that everyone's input is valued and that the products we create meet the needs of our users. You will work closely with different teams across HubSpot, from product to research, to ensure a seamless experience for our users. Your contributions will empower small and medium-sized businesses to achieve their goals through the enhancements you bring to life in our products. You will gain a deep understanding of how HubSpot functions as a business and how your work impacts our customers.

What we offer

At HubSpot, we prioritize both our customers and our engineers. We dedicate about 20% of our engineering resources to building tools and platforms specifically designed to help you concentrate on what you love. Our hybrid work model provides the freedom to work remotely anywhere in the UK or Ireland, or enjoy in-office collaboration in London or Dublin as often as you’d like. We encourage you to apply even if your experience doesn't match every requirement — curiosity, empathy, and a growth mindset matter just as much to us. Join us in our mission to help small and medium-sized businesses thrive with our industry-leading CRM, Marketing, Sales, and Services products.