Staff Software Engineer, Android, Menu (AI Fluency) at Spoton

About SpotOn We’re not just building restaurant tech, we’re giving independent restaurants the tools to compete and win. From our award-winning point-of-sale to AI-powered profit tools, everything we do helps operators boost profit, work smarter, and keep their best people. And every solution is backed by real humans who actually give a sh*t about helping restaurants succeed. - Named the #1 Restaurant POS by G2 (Fall 2025), based on ratings from real users - Rated the top-rated point-of-sale (POS) for restaurants, bars, retail, and small businesses by Capterra users - Awarded Great Places to Work and Built In’s Best Workplaces for multiple years running We move fast, care hard, and fight for independent restaurant operators to do what they love, and love doing it. If you’re looking to make an impact with heart and hustle, SpotOn is the place for you. We are looking for a battle-hardened Staff Engineer - Android to lead our mobile strategy and tackle the complex technical challenges inherent in a large-scale, distributed mobile ecosystem. This isn't just about greenfield development; it’s about the surgical modernization of a mature, complex codebase and ensuring 99.99% reliability on mission-critical hardware in high-pressure environments. You will serve as a technical bridge between product requirements and scalable, reliable mobile implementation, with a specific focus on leveraging AI to accelerate development and solve non-trivial architectural problems. ON A DAILY BASIS, YOU WILL: - Hospitality-Focused Innovation: Lead the design and delivery of high-impact features specifically for the hospitality industry, such as advanced order management, smart table management, and complex menu operations. - Architect & Drive Transition: Help to drive the strategic evolution of our Android applications from legacy structures toward modern Kotlin standards (MVI/MVVM, Jetpack Compose), balancing the need for innovation with the reality of maintaining a large, active production codebase. - Legacy Modernization: Identify and methodically dismantle technical debt, refactoring complex legacy modules into clean, testable, and modular components without disrupting business operations. - Complex Problem Solving: Solve deep-rooted technical issues involving complex offline-first synchronization, memory leaks in long-running processes, and intricate hardware integrations (printers, card readers). - Navigating Difficult Environments: Ensure system resilience in "battlefield" conditions—high-pressure kitchens and dining rooms where network instability, heat, and heavy usage are the norm. - Systemic Quality: Architect sophisticated observability strategies to monitor a fleet of thousands of devices, ensuring deep visibility into performance regressions and "impossible-to-reproduce" edge cases. - Strategic Collaboration: Partner with backend and product leadership to align mobile roadmaps with business goals and identify opportunities for AI-driven mobile innovation. - Performance Engineering: Direct the optimization of app startup times, UI responsiveness, and memory management, ensuring a "lag-free" experience in high-pressure environments. - Technical Stewardship: Lead mobile-specific ADRs and high-level code reviews, serving as the ultimate authority on Android best practices within the organization. - Innovation: Stay at the forefront of Android and AI/ML advancements to identify tools and methodologies that can reduce operational overhead and accelerate the mobile SDLC. WHAT SKILLS ARE WE SEARCHING FOR? - Experience: 8+ years of professional Android experience, with a proven history of successfully navigating and improving large, complex codebases at a Staff level. - Ownership & Execution: High level of autonomy and a "get-it-done" mindset. You take full responsibility for technical initiatives from conception to production, operating effectively with minimal supervision even in ambiguous or high-pressure situations. - Legacy & Refactoring Expertise: Expert-level ability to refactor large-scale applications while maintaining feature parity and stability. You know how to introduce modern patterns into codebases incrementally. - Resilience in High-Pressure Environments: Experience building software for mission-critical hardware where downtime is not an option. You understand the nuances of distributed systems and "real-world" environmental constraints. - Advanced Problem Solving: A track record of solving non-linear, highly complex technical problems that require deep dives into the Android OS, low-level networking, or memory management. - Technical Versatility: Mastery of Kotlin is mandatory, but you must be comfortable diving into Java and managing the interoperability between the two. - Quality & Observability Mastery: - Proven experience designing testing strategies for complex systems, including self-healing E2E tests and automated regression suites. - Expert at building monitoring systems (e.g., Grafana, Datadog) to track and fix complex bugs across thousands of devices in real-time. - AI Fluency: - Experience using AI-assisted coding tools (Claude Code, Cursor, etc.) to significantly boost personal and team productivity. - Practical experience integrating AI features into mobile apps (on-device inference or cloud-based LLM agents). - Familiarity with the development of agentic coding systems for mobile (e.g., autonomous PR reviews for UI code, automated screenshot testing, and self-healing UI tests). - Communication: Excellent command of written and spoken English, with the ability to explain complex mobile technical concepts to non-technical stakeholders. THE PERFECT CANDIDATE ALSO HAS: - Backend Synergy: Experience with Golang-based gRPC/REST APIs, ensuring mobile clients are resilient to backend latency or failures. - POS & Hardware Experience: Prior experience working with custom Android hardware, peripherals (printers, card readers), or IoT devices. - CI/CD Leadership: Experience building resilient mobile pipelines that handle complex build flavors and large-scale automated UI testing. Product Thinking: A "Product-First" engineer who understands that technical excellence is a tool to solve real-world problems for restaurant operators. HERE'S A BIT ABOUT WHAT WE HAVE TO OFFER: - Competitive pay. - Training budget 3500 PLN gross per year. - Access to e-learning platforms (O’Reilly). - Fully paid private healthcare in LuxMed. - Access to the Worksmile platform with a monthly top-up. - Subsidized access to breakfast and lunch through the vending machine in Kraków office, and lunches in Gdańsk office once a week. - Group English classes with a native speaker. - New Macbook Pro, 4K monitors or whatever tools you need. - Flexible working hours. - New, modern, bright and comfortable office space in the city centre. - Access to the company’s library. - Great working atmosphere. - Chill out room with a PlayStation and games. - Free snacks and beverages in a kitchen. - Company parties and social activities. - Employee referral program. - Relocation Package within Poland. The controller of your personal data included in your job offer and others collected during the recruitment process is SpotOn Poland spółka z ograniczoną odpowiedzialnością with its registered office in Kraków, Aleja 29 listopada 20, 31-401 Kraków, e-mail address: [Upgrade to PRO to see contact]. We will process your personal data for the purpose of current or, if you voluntarily agree, also future recruitment processes. More information about how we proccess your data, including the basis for processing and your rights in relation to the processing, can be found on our website: [Upgrade to PRO to see link] Administratorem podanych danych osobowych, w tym danych zawartych w dokumentach aplikacyjnych i zebranych w toku procesu rekrutacji, jest SpotOn Poland Sp. z o.o. z siedzibą w Krakowie (ul. Aleja 29 listopada 20, 31-401 Kraków; adres e-mail do kontaktu: [Upgrade to PRO to see contact]. Dane osobowe będą przetwarzane w celu realizacji obecnych lub – jeżeli wyrazisz na to dobrowolną zgodę – także przyszłych procesów rekrutacji. Więcej informacji o tym, jak przetwarzamy Twoje dane, w tym także informacje o podstawach prawnych przetwarzania oraz o prawach przysługujących Ci w związku z przetwarzaniem danych, znajdziesz na stronie: [Upgrade to PRO to see link] We will never ask candidates to pay fees, purchase equipment, or share sensitive personal or financial information during the hiring process. All legitimate communication from our recruiting team will come from an official company email address (@spoton.com [Upgrade to PRO to see link] If something seems suspicious, please contact us at [Upgrade to PRO to see contact]. SpotOn is an equal employment opportunity employer. Qualified candidates are considered for employment without regard to race, religion, gender, gender identity, sexual orientation, national origin, age, military or veteran status, disability, or any other characteristic protected by applicable law. SpotOn is an E-Verify company.