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Senior Mobile Engineer
Location
Spain
Posted
3 days ago
Salary
0
Seniority
Senior
Job Description
Senior Mobile Engineer
Stripe
Role Description As a Senior Mobile Engineer, you'll own significant parts of our React Native codebase, lead architectural decisions, and help grow the team around you. You'll work closely with product, design, and cross-functional partners to deliver polished, performant mobile experiences. Responsibilities - Spearhead the design and development of critical product features, partnering with cross-functional teams to transform complex requirements into seamless, high-performance mobile experiences. - Champion the integration of AI and cutting-edge development tools to drive efficiency, elevate code standards, and cultivate a culture of AI-assisted engineering. - Own architectural decisions for the mobile layer—including navigation, state management, native module integration, and performance strategy. - Drive code quality through thorough code reviews, clear standards, and a strong testing culture. - Mentor and support junior and mid-level engineers, helping them grow technically and professionally. - Proactively identify and resolve performance bottlenecks across the JS thread, native bridge, and render pipeline, while scaling our mobile CI/CD infrastructure, release processes, and engineering tooling. - Act as the primary mobile platform liaison for internal teams, effectively translating requirements into well-scoped mobile initiatives while upholding rigorous standards for code quality and architectural integrity. Qualifications - 5+ years of professional mobile development experience, with a strong focus on React Native. - Strong proficiency in TypeScript and modern JavaScript. - Solid understanding of mobile app architecture and design patterns (e.g., Flux, Redux, MobX, or similar). - Proven expertise in React Native, encompassing component architecture, performance tuning, and a demonstrated ability to ship and maintain high-quality production applications at scale. - Excellent problem-solving skills and ability to communicate complex technical concepts clearly. Preferred Qualifications - Experience with Expo (managed or bare workflow). - Experience designing and maintaining mobile CI/CD pipelines (e.g., Fastlane, GitHub Actions, Bitrise). - Experience building or contributing to mobile SDKs or shared component libraries. - Experience with backend development (REST APIs and GraphQL). - Contributions to open-source React Native libraries or the broader JS and mobile ecosystem. - Experience mentoring engineers and contributing to a team's engineering culture. - Familiarity with native iOS (Swift, UIKit) or Android (Kotlin, Android SDK) development. - Experience working in a remote-first or distributed engineering environment.
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Role Description Help build the future of image-guided interventions. At ImFusion, we develop software for medical imaging, computer vision, AI and robotics. Our technology is used by leading medical device companies worldwide to bring innovative products into clinical practice. We're looking for a Senior C++ Software Engineer to help solve challenging problems in medical imaging and image-guided interventions. You will develop technology that combines live ultrasound with pre-operative imaging to support image-guided interventions. Typical projects include: - Medical image visualization - Segmentation and registration - Fusion of live ultrasound with pre-operative imaging - Real-time image processing and ML integration - Development of core components of the ImFusion software framework Depending on your interests and experience, you may take ownership of customer projects, contribute to product decisions, interact directly with leading MedTech companies, or represent ImFusion at conferences and workshops. No prior ultrasound experience is required. Work from anywhere in the EU, fully remotely or from our Munich office. Qualifications - Excellent software engineering skills in C++ - MSc, PhD, or equivalent industry experience in Medical Imaging, Computer Vision, Machine Learning/Deep Learning, 3D Image Processing, or a related field - Ability to communicate complex technical topics clearly to both engineers and customers - Ownership mindset and willingness to drive projects forward - Professional proficiency in English Requirements - Experience with Linux and Windows development - Familiarity with CUDA/OpenCL, Python, Qt and/or CMake - Experience with DevOps/CI, real-time systems and/or machine learning - Exposure to medical imaging technologies Benefits - Build technology that becomes real medical products and improves patient care - Work on challenging problems in medical imaging, computer vision and AI - Flexible working arrangements, competitive compensation and a highly skilled international team
• Assist the development team with day-to-day needs such as test validation, task automation, help with deployments, and, of course, hands-on coding.
Role Description Worksoft is seeking a Senior-level Software Engineer with strong object-oriented programming skills to join a team of peers responsible for the design, development and maintenance of our automation technology. This technology virtualizes user interaction by allowing users to capture their interactions with multiple Windows- and MacOS-based applications, producing a set of editable steps that can be later executed. This problem space often offers challenges that require independent research, self-directed learning, and innovative solutions not typically found in mainstream thinking. In this role, knowledge and skills needed to complete tasks will span across multiple legacy to modern technologies and APIs. To give an idea of the range and diversity, below is a list highlighting areas used in the team’s solutions. Applicants are not expected to have experience with these technologies and APIs but would be required to learn whatever is needed in the execution of assigned tasks. - MacOS Development: Cocoa, Swift, Xcode, Mono, Xamarin, MAUI - Windows Development: .NET, C#, VB.NET, C++, Win32, WinForms, WPF - Backend: SQL & Database, Client/Server, Web Services, WCF, COM, SAML, OAuth, Machine Learning/Deep Learning, OCR, Image Processing - Automation Areas: SAP GUI, Web via WebExtensions, Java, Oracle Forms, Mainframe, Acrobat, Email, UIA/MSAA, Applitools, SoapUI/Postman, Perfecto, Office, .NET Framework, Silverlight, MacOS - DevOps: Jenkins, Groovy, Bash/Z Shell, Batch/Powershell, NANT, MSBuild, Git Key Responsibilities - Independent ownership of enhancements and maintenance for one or more automation plugins. - Research into feasibility and limits of possible solutions. - Identifying risks and challenges requiring prototypes or architecture assessment. - Design and implement an overall solution using appropriate object-oriented principles, patterns and architectures. - Troubleshoot customer issues via remote meetings to identify and resolve differences from expected behavior due to defects, environments or application version differences. - Maintain or extend existing automated build infrastructure as needed. - Collaborate with peers in the areas of ideation, design and problem solving. Qualifications - Bachelor's degree in Computer Science, Engineering, or related technical field OR 15+ years related experience without a degree. - 10+ years developing Windows-based, object-oriented applications. - Strong proficiency in C#, .NET framework and .NET. - Experience with Windows desktop application development (WinForms, WPF, or similar). - Strong research and problem-solving skills. - Proven ability to work independently and learn new technologies quickly. - Experience troubleshooting complex technical issues. - Experience working in a customer facing role to identify the root cause of an issue and communicate the requirements for resolution. Preferred Skills and Experience - Advanced degree in Computer Science or related field. - Experience with test automation frameworks or tools. - Knowledge of DevOps practices and CI/CD pipelines. - Experience in enterprise software or high-growth technology companies. 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Role Description This is the senior technical leadership role for our Checkout Champ and Shopify funnel stack. You'll own the architecture end-to-end — from spec to production deploy — across three growing consumer brands (Gekko Gifts, Purvos, Besyner), with more launches planned. You'll lead all complex builds, mentor a junior developer, and have final say on QA and production releases. If you want to own outcomes rather than wait for direction, this is the seat. What You'll Own - Checkout Champ: - End-to-end Checkout Champ funnel architecture and strategy - Custom subscription flows and complex rebill logic - Building and configuring upsell/downsell sequences, order bumps, and post-purchase flows at a strategic level - Payment gateway configuration and advanced troubleshooting - Final QA sign-off and production deploys - Shopify: - Full ownership of Shopify theme architecture, Liquid development, and storefront customization across all brands - Leading API integration work between platforms — from spec through deployment - Resolving complex display/functional issues across storefronts - Overseeing third-party app configuration and integration strategy - Tracking & Performance: - Owning pixel and tracking architecture — Meta, Google, native platform events - Diagnosing and resolving tracking discrepancies at the source - Translating checkout flow changes into measurable conversion impact, working closely with media buying - Team Leadership: - Directing and mentoring a Junior Checkout Champ Developer — assigning scoped tasks, reviewing work, and developing their path to ownership - Setting technical standards, documentation practices, and code review processes - Reviewing Checkout Champ and Shopify release notes and assessing impact across the stack Qualifications - 4+ years of hands-on experience with Checkout Champ, including ownership of multiple live, high-traffic funnels - Advanced Shopify expertise — Liquid, theme architecture, storefront customization, app ecosystem - Strong JavaScript and front-end development skills (HTML, CSS) - Proven experience designing subscription/rebill logic and complex payment gateway configurations - Track record of API integration work from spec to deployment - Deep understanding of conversion funnels and how technical decisions move CRO/AOV metrics - Experience mentoring or leading junior developers - Excellent written communication — async-first, remote team, clarity is non-negotiable Portfolio Requirement Portfolio is mandatory. Applications without Checkout Champ and Shopify project examples will not be reviewed. We're looking for: - Multiple Checkout Champ funnels you've architected end-to-end — screenshots, Loom walkthroughs, or live links - Shopify projects demonstrating advanced theme/Liquid work - Examples of API integrations you've led from spec to deployment Strong Plus - Experience with post-purchase upsell apps (ReConvert, Zipify, or similar) - Deep familiarity with subscription platforms (Recharge, Bold Subscriptions, Checkout Champ rebill flows) - Direct experience working alongside media buying teams - Formal CRO methodology experience - Experience hiring or onboarding technical talent Hiring Process - Submit portfolio (required — no exceptions) - Technical assessment (Checkout Champ + Shopify architecture task) - Final interview with leadership/team lead Benefits - Lead conversion engineering for three growing consumer brands, with more launches planned - See your architecture decisions go live on real, high-traffic ecommerce brands - Performance bonus tied to funnel output quality and conversion improvements - Remote-first, results-focused team — measured on what you ship, not your hours - Paid Leaves, allowances - Build and shape a team as it scales

