Lead Mobile Engineer

Cape is America’s privacy-first mobile carrier. Our mission is to be a force for good in global wireless. Cape was founded in 2022 by people who believe privacy is a fundamental right, not a luxury to be traded away. Our journey began when our founder recognized a critical vulnerability in our modern world: everyone relies on the same stagnant cellular infrastructure and legacy systems that track our every movement, monitor and profile our connections, and lose and sell our personal data.

Instead of accepting the status quo, we decided to fix it. National security professionals, journalists, parents, and everyone in between can stay connected and have privacy.

We didn’t just build a layer on top of old tech; we built America’s most private and secure mobile carrier from the ground up. By building our own network from scratch, we are able to design and build a suite of privacy and security features that no other carrier on the planet can offer.

Today, Cape provides our secure network to consumers, businesses, and government agencies alike. We closed our Series C in March 2026, and we are scaling rapidly, with the goal of giving people back control of their most personal information.

At Cape, we are the architects of a privacy-centric movement that is just getting started. We are relentless builders, constantly innovating at the edge of what’s possible in telecommunications. We operate on a foundation of high trust and high expectations. As a member of our team, you will collaborate with world-class engineers, architects, and visionaries, and work across organizational lines to solve "impossible" problems and deliver mission-critical results for our users every single day.

Cape’s platform gives customers end-to-end control of their digital identity, optimizing for resiliency, privacy, and security at every turn. We’re transforming how customers sign up, use, and think about their mobile phones and the privacy implications associated with it. Customers are protected at every level of the communications stack – from the mobile device, through infrastructure, and to the core of the network itself.

As a Lead Software Engineer on the mobile team at Cape, you will architect the future of private mobile communication by leading and scaling our mobile engineering team. You will lead the charge will be on building our secure iOS and Android suite of products, translating our privacy-first mission into a best in class user experience and functionality. We don’t just whitelabel an application and do the bare minimum for onboarding and collecting payment, but instead we’re building natively from the ground up to solve some of the hardest technical challenges in security and cryptography in order to secure personal information (PII), account data, and even voice & SMS traffic.

You will cultivate a high-performing, engaged team, providing technical mentorship and people-focused leadership needed to deliver outcomes. a and make decisions independently, within a community that will support and challenge them as they grow and develop, becoming strong technical contributors and engineering leaders. In close partnership with Product and other Engineering leaders, you will define and execute our mobile strategy, foster a culture of technical excellence, and build the capabilities required to protect our users in a constantly evolving digital landscape.

Your day-to-day will change, but everything you work on has a high impact. One day you could be pushing to deliver a new capability to prevent targeting of soldiers on the battlefield, the next you could be architecting a new system to prevent financial fraud via SIM swaps for everyday citizens.

• Build the mobile telecommunications applications of the future to provide the most resilient, private, and secure cellular connectivity.

• Maintain high coding standards through the development of guidelines, active participation in code reviews, and fostering a culture of continuous improvement and knowledge sharing among your team.

• Guide and grow a community of talented mobile engineers, fostering an inclusive and high-performance culture rooted in collaboration. You will be responsible for empowering each team member through dedicated mentorship, transparent feedback, and clear pathways for career development.

• Take ownership of the mobile product lifecycle, from conceptualization to launch.

• Champion the security, performance, and stability of our applications. You will implement and oversee robust testing, monitoring, and release processes to guarantee a seamless and trustworthy user experience.

• Actively improve user workflows by collaborating with cross-functional teams, ensuring seamless experiences across product boundaries and a cohesive user experience.
  

• Proven ability to learn continuously, work independently, and make decisions with minimal supervision.

• Experience brainstorming and iterating with product designers.

• Ability to take a thoughtful, practical approach to problem-solving that considers tradeoffs and avoids over-engineering.

• Skill and comfort working in a constantly evolving environment with dynamic objectives and iteration with users.

• Ability to work collaboratively in teams of technical and non-technical individuals and understand how technical decisions impact the people who will use what you're building.

• Understanding of cryptographic systems and how to design privacy conscious solutions.

• Ability to learn new technology and concepts, even without in-depth experience.

• Active US Security clearance, or eligibility and willingness to obtain a US Security clearance is beneficial, but not necessary.
  

• 5+ years of mobile software engineering experience.

• Engineering background in Computer Science, Mathematics, Software Engineering, Physics or similar field.

• Experience crafting complex user experiences (UX) with a strong intuition for good design and usability.

• Exceptional coding skills regardless of framework, especially with Kotlin or Swift, and can navigate different languages and technology stacks (e.g. Go, Typescript).

• Familiarity with data structures, loading patterns, mobile frameworks, and other technical tools and concepts.

• Familiarity with software design patterns such as: MVVM, unidirectional state flow, modularization, asynchronous and event-based programming, and other modern mobile development patterns.

• Strong written and verbal communication skills and ability to iterate quickly with teammates, incorporating feedback and holding a high bar for quality.

  
  

We offer competitive compensation that is geo-adjusted based on your location, along with meaningful equity so you share in the value you help create. Our benefits include:

• 401(k) match

• 100% coverage of medical, dental, and vision premiums for you and your dependents

• 12 weeks paid parental leave (for all parents, no waiting period)

• Stipends for

  • Family-forming needs

  • Gender-affirming care

• Unlimited PTO

• We hire excellent people, give them outsized responsibility, and trust them to execute. Every person at Cape has a proven track record of tackling hard problems and winning.

• We believe that personal privacy and national security are not at odds, and that they can be reconciled through strong technology.

• We believe companies exist to build awesome things and take care of the people who build them, so we offer top-tier healthcare, 401(k) matching, and a generous vacation policy that our team actually uses to recharge.

• We believe that a stronger company and a better product are built by people from all walks of life. We hire without regard to race, color, ancestry, religion, sex, national origin, sexual orientation, gender identity, age, marital status, disability, or Veteran status. If you are great at what you do, you belong here.

Click the link below to apply.

We reserve the right to make use of any unsolicited resumes received from outside recruiting agencies and / or individual recruiters without being responsible for payment of any fees asserted from the use of unsolicited resumes.