Role Description We are seeking a talented and motivated Mobile Software Engineer to join our Engineering team. In this role, you will enhance our mobile application capabilities by developing, optimizing, and maintaining our mobile app that interfaces with medical devices to collect and upload data for further analysis. You will collaborate closely with backend engineers, data scientists, and product teams to build mobile solutions that are scalable and impactful. This role will report directly to the Lead Mobile Engineer. We would love to find someone in the Chicagoland area who can collaborate with the team in the office, but are also open to the right candidate in another location. - Mobile Development: Design, develop, and maintain mobile applications using Kotlin and related technologies. - Algorithm Integration: Collaborate with backend teams to integrate state-of-the-art algorithms into mobile applications and deliver great user experiences. - Optimize Performance: Optimize mobile app performance, ensuring efficiency, reusability, and responsiveness across a wide variety of mobile devices. - API Integration: Work with backend teams to integrate RESTful APIs that interface with the mobile app. - Testing and Automation: Write unit tests and UI automation tests using tools like Espresso, UI Automator, JUnit, and Appium. - Collaboration: Work closely with data scientists, product teams, and engineers to align data solutions with business and product needs. - Problem Solving: Tackle complex technical challenges and contribute to continuous improvement initiatives. Qualifications - Bachelor’s degree in Computer Science, Engineering, or a related technical field. - 3-5 years of experience as a Mobile Software Engineer, Android Engineer, or similar role. Requirements - Mobile Development: Strong experience with Kotlin for Android development. - Mobile Architecture: Knowledge of mobile architecture patterns such as MVP, MVVM, or MVC. - Testing and Automation: Experience with unit testing and UI automation using tools like Espresso, UI Automator, JUnit, or Appium. - API Integration: Experience with integrating RESTful APIs into mobile applications. - Programming Skills: Proficiency in mobile frameworks and libraries such as Jetpack Compose, Firebase, and ktor. - Communication Skills: Strong problem-solving, communication, and collaboration abilities. - Remote Work Ability: Ability to work effectively in a distributed, remote-first environment. - Language Proficiency: Fluent in English. Benefits - Meaningful Compensation: Competitive salary, performance bonus, and equity so you can share in what we build. - Great Health Coverage: Medical, dental, and vision plans with multiple options and strong company contributions. - Flexible Spending Perks: HSA, FSA, commuter benefits, and a $1,200 annual Lifestyle Spending Account to support wellness, commuting, family needs, and more. - Time to Recharge: Generous paid time off, sick leave, and company holidays. - Family-First Benefits: Paid parental leave, caregiver leave, and support for growing families. - Security & Peace of Mind: Company-paid life insurance and short- and long-term disability coverage. - Plan for the Future: 401(k) plan to help you build long-term financial security. - Care When You Need It: Easy access to telehealth and optional supplemental coverage for life’s unexpected moments. Starting Salary is at $139,000.00 (Exact Compensation may vary based on skills, experience, and location).

Apartments.com - Android Engineer (Kotlin) Location: Orange County, CA; Irvine, CA Job Description: Apartments.com is the nation’s #1 rental marketplace for property owners, managers, and renters, reaching millions of users every month. Our platform powers the industry’s most comprehensive digital ecosystem—helping property professionals market their listings, manage reputation, and attract high-quality renters through innovative technology and data-driven insights. We’re seeking an accomplished Android Engineer to join our growing mobile development team in Irvine, CA. In this role, you’ll have a direct impact on building brand new features and enhancing the Apartments.com mobile experience used by millions of renters nationwide. You’ll work at the intersection of innovation and scale, using the latest Android technologies to create fast, intuitive, and beautiful experiences that help renters find their next home effortlessly. As part of a collaborative Agile team, you’ll design and develop high-quality Android applications using Kotlin, Jetpack Compose, and modern architectural patterns. You’ll work closely with designers, backend engineers, and product managers to deliver clean, maintainable, and performant code. Your work will help shape the future of Apartments.com’s mobile ecosystem, driving customer engagement and satisfaction through continuous improvement and experimentation. This is an opportunity to join a passionate, forward-thinking engineering organization where innovation is encouraged and every engineer has the freedom to influence technology decisions, experiment with emerging tools, and deliver features that truly matter to users. This position is located in Irvine and is in office Monday through Thursday with work from home on Friday Responsibilities - You will develop Android applications that scale to reach millions of users - You will continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be used to strengthen CoStar’s technology platform and development practices - Work with the team to create user interface layouts for customers and interfaces to backend web services - Design and develop systems and libraries that are highly reusable and maintainable - Understand CoStar’s product architecture and frameworks and come to the table with your ideas - Collaborate with different teams along with other Android developers to exchange new ideas and improvements Basic Qualifications - You have 4+ years’ experience developing Android applications - Bachelor’s Degree required from an accredited, not-for-profit, in-person college/university - A track record of commitment to prior employers - You are an expert in everything Android - JAVA, Kotlin, Android SDK, Android Studio, Layout Editor and are always interested in learning more and sharing your skills - You know all the common Object Oriented Programming and design patterns, MVI, MVVM, Dependency Injection and more. Preferred Qualifications And Skills - You love mobile applications and know how to make them engaging - You understand how to turn ideas and code into the perfect customer experience What’s in it for You When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed. We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, tuition reimbursement - Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug - Life, legal, and supplementary insurance - Virtual and in person mental health counseling services for individuals and family - Commuter and parking benefits - 401(K) retirement plan with matching contributions - Employee stock purchase plan - Paid time off - Tuition reimbursement - On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes - Access to CoStar Group’s Employee Resource Groups    - Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks This position offers a base salary range of $98,000-$164,00, based on relevant skills and experience and includes a generous benefits plan. CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

• Responsible for building and maintaining high-quality Android applications • Collaborating closely with cross-functional teams to deliver seamless mobile experiences • Ensuring the development of reliable, scalable, and efficient applications that meet business needs

• Desarrollar y mantener funcionalidades de la aplicación mobile • Participar en la creación y mantenimiento de servicios backend en Java/Spring • Diseñar, desarrollar y mantener servicios backend y BFF en Java/Spring Boot • Trabajar sobre arquitecturas distribuidas orientadas a mobile