Senior Software Engineer, iOS

Senior Software Engineer, iOS

London, United Kingdom

Engineering About the Team

We are Mobile HubSpot. Our mission is to build world class mobile products across HubSpot's growth suite, empowering customers to run their businesses from anywhere. We are investing in a strong, scalable mobile platform that supports core CRM workflows, AI-powered experiences, and persona-driven use cases - particularly for sales professionals operating on the go.

Our team works across HubSpot's iOS and Android applications, building fast, lightweight, responsive, and intuitive mobile experiences. We embrace modern technologies including Swift and Kotlin, and we value strong collaboration across product, engineering, design, and data.

A key focus for the team is deepening the integration of AI-powered capabilities into the core mobile experience, while continuing to strengthen foundational elements such as authentication, security, performance, and reliability. This is an exciting phase of growth, with meaningful product evolution underway and significant opportunity to shape the direction of mobile at HubSpot.

The Role

As a Senior Software Engineer, iOS, you will play a key role in building and evolving HubSpot's mobile experience. You'll work on high-impact product initiatives that bring together CRM functionality, AI-driven workflows, and mobile-first user experiences.

Day-to-day, you can expect a mix of:

• Designing and building new features for the iOS application
• Contributing to AI-powered and workflow-driven mobile experiences
• Improving core architecture, authentication, and security foundations
• Collaborating closely with cross-functional partners
• Participating in code reviews and technical design discussions

You'll join a collaborative, EMEA-based mobile organization with opportunities to grow in scope and influence over time. As the team continues to scale, there is potential to step into increased ownership, including technical leadership or squad leadership responsibilities.

What We're Looking For

• Experience developing fully featured native iOS applications
• Strong proficiency in Swift (interest in functional programming is a plus)
• Familiarity with RxSwift or reactive programming paradigms
• A solid understanding of clean code and SOLID principles
• Experience with unit testing and automation
• A desire to build sustainable, scalable products with a strong appreciation for user experience
• Comfort working on foundational improvements such as architecture, authentication, and security
• Experience or interest in AI-powered features or developer AI tooling (e.g., LLM integrations, AI-assisted development tools) is a plus
• General engineering experience outside of mobile is nice to have
• A portfolio or examples of apps you have published to the App Store

Location and work options: This role can be office based (London), hybrid or remote within the UK.

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

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.

HubSpot, Inc. is an equal opportunity employer. As a federal contractor, we take affirmative action to ensure equal opportunity and all candidates are considered without regard to race, color, religion, national origin, age, sex, sexual orientation, gender identity, marital status, ancestry, physical or mental disability, veteran status, or any other legally protected characteristics.

To assist HubSpot in its commitments and compliance with federal and state record keeping, reporting and other legal requirements, you are invited to provide the following information. In accordance with applicable law, we may also use the information in an aggregated, anonymous form to help us improve diversity at HubSpot.

Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or affect your candidacy in any way. Any information that you do provide will be recorded and maintained in a confidential file.

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