3x Senior Client Engineer, experience with Android - Core Experience

Formats & Foundations is part of Core Experience Studio, focused on helping users connect more deeply with creators and their content. The team owns and evolves some of our clients most highly trafficked experiences, including Artist, Album, Podcast, Episode, and Audiobook surfaces.

Beyond building user-facing experiences, the team develops foundational mobile capabilities, reusable components, and platform infrastructure that enable teams across to deliver high-quality, consistent experiences at scale. We work at the intersection of product experience and platform engineering, balancing innovation, performance, and usability across the app.

We’re looking for a Senior Client Engineer who is passionate about mobile craftsmanship, scalable architecture, and building tools and foundations that empower product teams. You’ll help shape technical direction, mentor engineers, and contribute to experiences used by millions of listeners every day.

What You’ll Do

• Design, build, and evolve mobile experiences across some of our clients most visible consumer surfaces
• Contribute to the architecture and development of reusable mobile foundations, frameworks, and platform capabilities
• Lead technical initiatives that improve scalability, performance, reliability, and developer experience across the app
• Collaborate closely with engineers, product managers, designers, and platform teams to shape product direction and technical strategy
• Drive engineering quality through thoughtful code reviews, testing practices, observability, and operational excellence
• Mentor engineers and contribute to a collaborative, inclusive, and growth-oriented engineering culture
• Help teams across to move faster by improving tooling, workflows, documentation, and shared engineering standards
• Participate in experimentation and prototyping efforts tied to future-facing content and listening experiences
• Explore modern engineering workflows, including AI-assisted development tools and emerging mobile technologies
• Balance short-term product needs with long-term platform sustainability and technical health

Who You Are

• You have strong experience building mobile applications using Swift and/or Kotlin
• You have experience contributing to large-scale consumer-facing applications with high performance and reliability expectations
• You know how to design scalable, maintainable mobile systems and reusable platform components
• You care deeply about user experience, accessibility, performance, and engineering craftsmanship
• You are experienced collaborating across disciplines and influencing technical decisions in cross-functional environments
• You communicate technical ideas clearly and thoughtfully with both technical and non-technical audiences
• You enjoy mentoring and supporting engineers through collaboration, feedback, and knowledge sharing
• You are comfortable navigating ambiguity and making thoughtful technical trade-offs
• You are curious about emerging technologies and evolving development practices, including AI-assisted engineering workflows
• You bring a growth mindset and continuously look for opportunities to improve systems, products, and team practices

Start/End: 2026-06-01 to 2026-11-30

Workplace: Stockholm, Sweden.