Senior Software Engineer, iOS
HubSpotJobsCloseBy Editorial Insights
HubSpot is seeking a Senior Software Engineer, iOS to join Mobile HubSpot in London with hybrid or remote options. You’ll build iOS features, weaving CRM functionality with AI powered workflows while strengthening core architecture, authentication and performance. Expect collaboration with product teams and potential for technical leadership as the team grows. What matters most: deep native iOS experience, strong Swift, RxSwift or reactive patterns, clean code and SOLID, testing, and a user obsessed mindset. Show published App Store work and interest in AI tooling. Tailor your application to highlight these strengths and your ability to contribute across teams and locations, and mention accommodations if needed.
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
This role can be office based (London), hybrid or remote within the UK
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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