[Hiring] Staff Software Engineer, Android, Menu (AI Fluency) @SpotOn

Role Description

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.

• 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.

Qualifications

• 8+ years of professional Android experience, with a proven history of successfully navigating and improving large, complex codebases at a Staff level.
• 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.
• Expert-level ability to refactor large-scale applications while maintaining feature parity and stability. You know how to introduce modern patterns into codebases incrementally.
• 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.
• 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.
• Mastery of Kotlin is mandatory, but you must be comfortable diving into Java and managing the interoperability between the two.
• 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.
• 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).
• Excellent command of written and spoken English, with the ability to explain complex mobile technical concepts to non-technical stakeholders.

Requirements

• Experience with Golang-based gRPC/REST APIs, ensuring mobile clients are resilient to backend latency or failures.
• Prior experience working with custom Android hardware, peripherals (printers, card readers), or IoT devices.
• Experience building resilient mobile pipelines that handle complex build flavors and large-scale automated UI testing.
• A "Product-First" engineer who understands that technical excellence is a tool to solve real-world problems for restaurant operators.

Benefits

• 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.