Senior Mobile Engineer

Who you are

• 5+ years of professional mobile engineering experience in an agile environment delivering native applications to end-users on both Android and iOS, with hands-on production experience using:
• Android: Kotlin (and Java), Jetpack Compose, Coroutines, Flow, Dagger/Hilt, Retrofit, Room
• IOS: Swift, SwiftUI and UIKit, Swift Concurrency (async/await), Combine, Core Data or equivalent
• GitHub for version control and pull-request based workflows
• SOLID, Clean Coding, Testing, experience with automation and instrumentation (Espresso/UI Automator, XCTest/XCUITest)
• Publishing and maintaining apps on Google Play and the Apple App Store, including release management and store compliance
• Agentic AI proficiency: demonstrated day-to-day use of AI agents (e.g., Claude Code, Cursor, GitHub Copilot agents) to write and review infrastructure code, automate runbooks, and investigate incidents, with strong judgment on verifying AI-generated output before it touches production
• You have exceptional organizational and analytical skills leading to confident independent delivery, but know when and how to include others
• You have experience building large-scale systems with some technical leadership skills
• Passionate about Technology and keeping up to date with latest advancements, techniques and best practices
• CI/CD tools such as GitHub Actions
• Experience with cross-platform frameworks (Kotlin Multiplatform, Flutter, or React Native) or web front-end (React/TypeScript)
• Experience integrating LLM/AI features into mobile apps (on-device or API-based), or building agentic workflows and MCP-style tooling
• Experience with mobile analytics and experimentation (Mixpanel, Firebase, feature flags, A/B testing)
• Experience with mobile ads and monetization SDKs, or consumer utility apps (cleaner, storage, privacy, or device optimization)
• Alignment with our Core Values:
• ​​Accountable: You take ownership of your responsibilities, demonstrating trustworthiness and self-discipline. You are consistent in your work, transparent in your actions, and communicate effectively. You follow through on commitments and strive for continuous improvement
• Action-driven: Identify what is most important, agree on scope, timely execute, and drive the greatest impact. You take initiative, roll up your sleeves, and get things done
• Caring: You genuinely care about yourself and others, our business and craft, our mission and vision, and are passionate in heart and mind. You understand the importance of our team and strive to create a positive, supportive work environment
• Curious: You focus on the ‘why,’ learn and expand your knowledge, explore new ideas, and generally make things better. You're a lifelong learner with a thirst for knowledge and a constant desire to improve
• Thorough: Your work is thoughtful, impactful, timely, accurate, and complete. You pay attention to detail, are meticulous, and ensure quality work and compliance
• Experience with censorship-circumvention technologies and traffic obfuscation (Shadowsocks plugins, V2Ray/Xray, obfs4, domain fronting) and operating in restrictive network environments
• Experience with userspace network stacks (lwIP, gVisor netstack) or Go-based networking tooling (wireguard-go)
• (Strong Plus) Experience taking over or integrating infrastructure from another company, including unfamiliar cloud environments, accounts, vendors, monitoring, CI/CD, and operational processes
• Kubernetes, Nomad, or similar orchestration; Packer for image building
• Self-managed databases (MongoDB, PostgreSQL, Redis) and backup / disaster recovery design
• Cloud cost optimization across multiple providers and FinOps practices
• Compliance program experience (SOC 2, GDPR, CCPA) and handling of law-enforcement / data requests for a privacy product
• Familiarity with mobile app release pipelines (Fastlane, Bitrise, Xcode Cloud) and backend stacks in Go, Python, and Node.js
• This role is ideal for a results-driven marketing professional with a strong technical background and a keen eye for detail. If you are passionate about digital marketing and investor communications, we encourage you to apply and join a dynamic and innovative team

What the job involves

• As an engineer, you’ll be accountable for nimbly experimenting with solutions, building high-quality software on both Android and iOS, and measuring results
• You’ll use agentic AI coding tools as a core part of your daily workflow to move faster without compromising quality
• You’ll work closely with product managers, other engineers, designers, marketing, operations, and several stakeholders to define and execute according to our strategic roadmap to accelerate our future growth
• You are excited to work at the forefront of solving one of the biggest challenges. You care about your users
• You’re an expert in smartphone technology and love mobile application software, equally comfortable shipping on Android and iOS
• You embrace agentic AI as a force multiplier: you use AI coding agents to plan, implement, test, and review work, and you know when to trust them and when to verify
• You value working closely with Product Management, learning directly from users about what matters to them, and developing solutions that they love
• You care deeply about the impact of your work, and measure success by the value added to users’ lives
• You partner with cross-functional team members to gain additional insight into users, seek to better understand their interests and behavior as critical drivers to success
• You’re excited to write high-quality, maintainable, and well-tested code. You are eager to find minimal ways to test hypotheses and validate feasibility
• You’re a strong advocate for unit/integration testing and passionate about automated testing and continuously shipping to production on both app stores
• You are adaptable and comfortable moving between apps, codebases, and pods as priorities shift