Senior Android Developer at Tonsser | Berlin

scalablegmbh is seeking a Senior Android Engineer to join the team in Berlin. This position centers on designing and building Android applications that improve user experience and offer advanced functionality. What you will do Design and develop Android applications with a focus on usability and performance Work closely with colleagues from different disciplines to deliver cohesive mobile solutions Contribute to architectural choices and help shape the direction of mobile development Support the creation of scalable products that can grow with user needs Who we are looking for Experience building Android apps and a strong interest in mobile technology Comfort working on complex technical challenges Enjoys collaborating in a team setting and sharing ideas Motivated to have a meaningful impact on product quality and user satisfaction This role is based in Berlin and offers the chance to help shape the future of mobile solutions at scalablegmbh.

scalablegmbh is looking for an Android Engineer to help build and improve mobile applications in Berlin. This position centers on developing software that aims to deliver a strong user experience. Role overview As an Android Engineer, the focus will be on designing and implementing features for mobile products. Collaboration with a skilled team is part of the day-to-day work, with a shared goal of producing reliable and effective applications. What you will do Develop and maintain Android applications Work closely with other engineers and professionals to deliver high-quality software Contribute to improving user experiences through thoughtful design and implementation Location This role is based in Berlin.

scalablegmbh is looking for a Senior Analytics Engineer to join the team in Berlin. This position centers on building and refining data models that help unlock valuable insights for the business. Role overview The Senior Analytics Engineer works closely with colleagues from different departments to shape data-driven solutions. The job involves developing scalable data models, improving query performance, and ensuring that analytics efforts support key business goals. What you will do Collaborate with cross-functional teams to understand data needs Design and maintain scalable data models Optimize queries for efficiency and reliability Translate data into clear, actionable insights for decision-making Location This role is based in Berlin.

scalablegmbh is seeking an AI Software Engineer with a strong background in Python to join the team in Berlin. This position centers on building AI solutions that support a range of projects and drive progress within the company. Role overview The AI Software Engineer will use Python to design and implement AI-driven features. Collaboration with colleagues is essential, as projects often require joint problem-solving and creative thinking. The work involves addressing technical challenges and contributing to the ongoing development of AI technologies at scalablegmbh. What you will do Develop AI solutions using Python Work closely with team members to deliver project goals Contribute ideas and technical expertise to shape future AI initiatives Requirements Experience with Python in AI-focused projects Enjoy working in a collaborative setting Motivation to solve complex problems and advance AI technology

scalablegmbh is looking for a Compliance Expert (m/w/d) to join the team in Berlin. This position plays a key part in keeping our operations aligned with relevant regulations and industry standards. Role overview This role focuses on monitoring company activities to ensure compliance with legal and regulatory requirements. The Compliance Expert helps maintain client trust by supporting processes that uphold our commitment to quality and integrity. What you will do Oversee adherence to applicable laws and industry guidelines Support efforts to deliver reliable service to clients Contribute to a culture of compliance across the organization Location This position is based in Berlin.

scalablegmbh is looking for an Incident Manager to help keep services reliable and operations running smoothly. This position is based in Berlin and centers on coordinating responses to incidents as they arise. Role overview The Incident Manager leads efforts to resolve service disruptions quickly and efficiently. The job involves working with teams across the company to address immediate issues, minimize downtime, and restore normal operations. Key responsibilities Coordinate incident response and manage the resolution process Work with cross-functional teams to find root causes of incidents Support the implementation of preventive measures to avoid future disruptions Promote ongoing improvements in incident management and service quality Collaboration This role involves regular interaction with different departments, encouraging teamwork and a proactive approach to problem solving.

Role Overview scalablegmbh is looking for a Senior Cloud Site Reliability Engineer with a focus on network systems. This position is based in Berlin. What You Will Do Maintain and improve the reliability, performance, and scalability of cloud infrastructure. Work closely with engineering teams to optimize network services and resolve technical challenges. Contribute to developing solutions that strengthen network systems. Support a culture of ongoing improvement across the organization. About You Bring expertise in cloud technologies and network systems. Enjoy solving complex problems and collaborating with others. Ready to make an impact in a growing company.

Atolls is the world’s largest community-driven shopping platform, active in over 20 markets.We empower millions of consumers to make informed spending decisions throughout discovery, evaluation, and re-purchase by connecting them with the right brands and retailers.Our diverse team of over 1,000 professionals across 10 countries develops products utilized daily on a global scale, where you will have genuine ownership and see your influence. Do you aspire to shape the platforms consumers depend on for confident shopping? If so, read on.About This Role:We are seeking a passionate Senior Android Developer to join our collaborative team in Berlin or remote from anywhere in Europe. Your contributions will be pivotal in the development, maintenance, and publication of our application.Your expertise in the Android ecosystem and commitment to staying abreast of the latest technologies will ensure our application remains current with OS updates and new features, enhancing its appeal. We focus exclusively on our own app and strive to make it the most engaging experience possible!Your efforts will significantly influence how millions of consumers engage with our platforms, helping them make smart, fair, and rewarding choices.Our Benefits:At Atolls, we are dedicated to fostering both your professional and personal development. Here’s what you can expect:A culture that prioritizes personal and professional growth, with opportunities for internal mobility.A supportive and open-minded team that values diverse perspectives and innovative ideas.32 days of paid vacation plus your birthday off, allowing you ample time to recharge.A flexible hybrid working model to balance work and life, with remote work permitted for this role.Access to a learning budget and internal training to facilitate your growth within the role.Mental health coaching to support your overall well-being.Regular global and local gatherings to celebrate achievements and strengthen connections.

scalablegmbh is seeking a (Senior) Data Engineer to join the team in Berlin. This role centers on designing and building data architectures that support the company's data-driven goals. The work directly shapes how teams access and use information for important decisions. Role overview The (Senior) Data Engineer will focus on creating reliable systems for collecting, storing, and processing data. Collaboration with other teams ensures that data is accessible and useful for a variety of business needs. What you will do Design and implement data architectures tailored to business requirements Support teams by enabling effective data use for decision-making Location This position is based in Berlin.

Your Next Career Move Awaits!Trade Republic is Europe's leading savings platform, operating across 18 countries and serving over 10 million customers who have entrusted us with more than €150 billion in assets. Our ambition is to empower everyone to build wealth through accessible, secure, and cost-free financial services.Join us to enhance your career alongside a team of talented professionals and cutting-edge technology, as we strive to create a sustainable and positive future for millions.Your RoleLead the development of Android platform components, including modular architecture, core libraries (networking, analytics, storage, feature flags), and shared UI elements.Enhance application performance and reliability focusing on startup times, rendering efficiency, memory usage, and battery optimization; set performance budgets and standards.Advance our CI/CD processes by optimizing Gradle build times, managing dependencies, and improving test infrastructure (unit/instrumentation) and release automation.Enhance system observability through improved logging, metrics, tracing, crash reporting, ANR detection, and real-user monitoring.Champion coding excellence by enforcing static analysis, lint rules, coding standards, API guidelines, and maintaining thorough documentation.Collaborate with security and privacy teams to ensure robust data handling, permissions management, SAFE storage, Play integrity, and supply-chain hardening.Mentor and support feature teams, conducting discovery reviews, and leading migration and platform rollouts.

Lead the complete development lifecycle of high-performance Android applications utilizing Kotlin, Coroutines/Flow, Jetpack Compose, Dagger/Hilt, Retrofit, and Espresso, along with other cutting-edge technologies.Design and enhance a modular architecture that ensures long-term maintainability and reliable performance even under peak traffic conditions.Drive automation initiatives by establishing robust build, test, release, and deployment pipelines as integral aspects of the product (CI/CD).Function as a technical multiplier by elevating quality standards through code reviews, mentoring colleagues, and disseminating knowledge across Android teams.Collaborate with product, design, and editorial teams to shape features from concept to launch, ensuring optimal user value, reliability, and speed.Investigate and implement AI-driven development tools to enhance developer productivity and software quality, grounded in sound engineering principles.

scalablegmbh is seeking an Engineering Manager focused on Mobile Engineering to join the team in Berlin. This leadership role centers on guiding a group of skilled mobile developers as they build and improve mobile applications for the company’s platforms. Role overview The Engineering Manager will take charge of project timelines and coordinate closely with cross-functional teams. Mentoring developers and supporting their growth is a key part of this position. The manager will also help shape the technical direction and architecture of mobile projects, always considering the company’s broader business objectives. What you will do Lead and support a team of mobile developers Oversee the planning and delivery of mobile application projects Mentor team members and foster their professional development Work with other departments to ensure successful project outcomes Guide architectural choices and set technical direction for mobile initiatives Requirements Experience managing or leading mobile engineering teams Strong background in mobile application development Ability to oversee project timelines and collaborate across functions Comfort making architectural and technical decisions

scalablegmbh is looking for a (Senior) Rust Software Engineer to help build and maintain banking platforms in Berlin. This position centers on designing, implementing, and supporting high-performance applications written in Rust. Role overview This role focuses on developing software that supports banking operations. Collaboration with cross-functional teams is a key part of the work, aiming to improve user experiences and contribute to ongoing technical improvements. What you will do Design and implement applications using Rust Maintain and improve existing systems for performance and reliability Work closely with colleagues from other disciplines to deliver features and enhancements Requirements Experience developing with Rust Ability to design and maintain high-performance applications Strong collaboration skills for working with cross-functional teams

Join scalablegmbh as a Staff Engineer - Client Technology and be at the forefront of innovation in client technology solutions. You will collaborate with a dynamic team to design, develop, and implement cutting-edge technologies that enhance client experiences. Your expertise will be integral in driving projects from concept to completion, ensuring high performance and scalability.

scalablegmbh seeks a Product Manager with a focus on Taxation to join the Berlin office. This position leads the creation and ongoing management of products centered on tax, making sure they meet client requirements and expectations. Key responsibilities Guide the development and full lifecycle management of tax-related products Collaborate with teams across scalablegmbh to define product strategies and identify areas for improvement Organize product launches and drive continuous updates and enhancements Location This role is based in Berlin.

Join Our TeamBecome an integral member of SumUp's Mobile Platform Squad as a Senior Android Engineer and play a pivotal role in our growing Android ecosystem. With substantial investments directed towards flagship products, we empower our feature teams to create world-class user experiences. Your contributions will be key in establishing a solid foundation that enables over 40 Android engineers to work at peak productivity and efficiency, directly influencing the future of mobile payments for millions of merchants.Our engineering culture emphasizes autonomy, collaboration, and innovative thinking. Your initiatives will resonate throughout the organization, connecting you with mobile engineers across various teams. This role is vital for:Removing Bottlenecks: Proactively identifying and resolving critical bottlenecks in CI/CD pipelines and app infrastructure that could hinder the rollout of new features and enhancements.Enhancing Developer Experience: Designing and implementing state-of-the-art tools and infrastructure that significantly improve developer experience, decrease build times, and streamline workflows for our extensive Android engineering team.Modernizing a Mature Codebase: Leading the evolution and refinement of our Android codebase, with an emphasis on code simplicity, maintainability, and overall health across all SumUp Android products.Ensuring Product Stability & Scalability: Providing essential support and guidance across our diverse Android product suite, assuring consistency, reliability, and seamless functionality for the Register, Android Terminal, SumUp Go, and Merchant app.Your Responsibilities:Strategic Impact: Spearhead the development of core experiences for both merchants and our internal Android developers, directly contributing to SumUp's ambitious Android product roadmap.Technical Leadership: Architect, develop, and maintain essential tools, frameworks, and infrastructure that significantly enhance the consistency, scalability, and reliability of our mobile applications, ensuring no adverse effects across our varied Android products.Performance & Efficiency: Drive initiatives in CI/CD systems, advanced developer tooling, and performance enhancements to dramatically optimize mobile development processes and reduce build times for our expanding team.Codebase Evolution: Actively manage technical debt, enhance code health, and introduce best practices to a complex, mature codebase, ensuring its longevity and adaptability.

Join SumUp as a Senior Android Engineer in our dynamic Design System team. You will play a pivotal role in transforming SumUp’s design language into a versatile library of user interface components and experience patterns. This initiative empowers product teams to create cohesive and accessible user experiences that resonate globally.The Design System team is poised for growth, reflecting SumUp’s expanding suite of merchant and consumer-facing products. This position presents a remarkable opportunity to enhance and innovate a system that accelerates feature development, ultimately delivering high-quality experiences to millions of users worldwide.Key ResponsibilitiesShape the core experience for users and developers within SumUp’s Android ecosystem.Collaborate closely with product and design teams to develop components that prioritize maintainability, usability, aesthetic appeal, and consistency.Integrate accessibility best practices into every component, ensuring compliance with content descriptions, touch target size, color contrast, and font scaling.Implement dynamic theming support, allowing for light/dark mode and brand variations that can be adjusted in real time or through configuration.Provide hands-on technical support to product teams to align with company objectives, including the upcoming brand refresh.Review code contributions, enforce design-system conventions, and mentor engineers on best practices for reusable UI development.Proactively identify and mitigate technical debt to uphold high standards of engineering excellence and codebase health.Qualifications3+ years of professional Android development experience, with a strong command of Kotlin and modern Android frameworks.At least 2 years of experience with Jetpack Compose.A passion for writing clean code, demonstrating a balance between pragmatism and perfection.A solid understanding of testing best practices: what to test, why, and how to create resilient tests.A keen eye for detail and a commitment to accessibility.Self-motivated with a structured working style, complemented by strong verbal and written communication skills in English.An enthusiasm for staying updated with advancements in the Android ecosystem and a desire to share knowledge with the Android community.Bonus QualificationsExperience in building and maintaining design systems or component libraries for Android, including theming, style guides, and reusable UI components.

Speechify’s mission is to remove reading barriers in education. Our text-to-speech technology serves over 50 million users, turning PDFs, books, Google Docs, news articles, and websites into audio. This helps people read faster, remember more, and understand better. Our products span iOS, Android, Mac, Chrome, and web platforms. Recognition includes Google’s Chrome Extension of the Year and Apple’s Design Award for Inclusivity in 2025. The team is fully distributed, nearly 200 people work remotely worldwide. Engineers, AI researchers, and product experts join us from places like Amazon, Microsoft, Google, Stanford, and from startups such as Stripe and Vercel. Role Overview: Tech Lead for Android Core Product Speechify is looking for a Senior Android Engineer in Berlin to lead the Android app’s continued growth as a top text-to-speech solution on the Play Store. This role suits someone who thinks strategically, enjoys shaping product direction, and thrives in a fast-moving environment. Leadership is earned here through technical excellence and consistent delivery, not hierarchy. What You Will Do Own major Android features and work closely with designers to deliver polished, high-quality app experiences. Help define the direction and culture of the Android team. Monitor, maintain, and improve reliability metrics for key app features. Participate in cross-functional discussions with Product, Design, and Engineering teams. Review pull requests and mentor other engineers. Troubleshoot critical issues and respond to unexpected challenges as they arise. What We Value Strong work ethic and drive to deliver results. Clear communication and collaboration skills. Desire to make meaningful product decisions that impact millions. Interview Process Our hiring process includes several technical interviews, usually completed within one week.

scalablegmbh is seeking a Technical Team Lead for the Data Platform team based in Berlin. This position centers on guiding a skilled group of data professionals and shaping the company’s data capabilities. Role overview The Technical Team Lead will oversee the development and execution of data strategies. The goal is to enable the organization to make informed, data-driven decisions. This includes responsibility for the design and implementation of scalable and efficient data architecture, as well as maintaining high standards for data quality and accessibility. What you will do Lead and mentor a team focused on data platform initiatives Supervise the creation and improvement of data solutions and architecture Ensure data quality and accessibility across projects Work closely with cross-functional teams to support business decisions with data insights Requirements Experience leading data-focused teams Strong background in building and maintaining data architecture Ability to collaborate with teams across different functions