Android Engineer Jobs in Chicago, USA

<div class="content-intro"><div class="c-message_kit__blocks c-message_kit__blocks--rich_text"> <div class="c-message__message_blocks c-message__message_blocks--rich_text" data-qa="message-text"> <div class="p-block_kit_renderer" data-qa="block-kit-renderer"> <div class="p-block_kit_renderer__block_wrapper p-block_kit_renderer__block_wrapper--first"> <div class="p-rich_text_block"> <div class="p-rich_text_section">Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit <a class="c-link" href="http://www.redditinc.com/" target="_blank" data-stringify-link="http://redditinc.com" data-sk="tooltip_parent">www.redditinc.com</a>.</div> </div> </div> </div> </div> </div></div><p><em>About the Team:</em> The <strong>Brand Ad Formats team</strong> drives the development of ad formats that help advertisers maximize reach and brand impact. They focus on high-visibility, awareness-driven solutions that create memorable experiences for Reddit users. By delivering guaranteed placements and engaging ad interactions, they support major brand initiatives and help advertisers achieve measurable outcomes.  The team is building <strong>fully customizable interactive formats</strong> and <strong>AI-driven ads</strong> that incorporate User-Generated Content (UGC).  Moving forward, we will be doubling down on <strong>Video Ads</strong>, with the goal of turning Reddit into an industry leader and a ‘must buy’ for advertisers to promote video content.</p> <p>As a <strong>Staff Android Engineer</strong>, you will lead the technical strategy to turn Reddit’s Video Ads into a premier offering for brand advertisers.  You will also build and provide technical guidance on new reddit-unique ad formats on Android, ensuring they are high performance, high quality and scalable.</p> <h3>What you’ll do: </h3> <ul> <li><strong>Video Ads Tech Lead:</strong> Partner closely with Product and Design to build a roadmap that will transform our Video Ads format into an industry leader in the space, and drive the technical design and execution of projects that turn the roadmap into reality.</li> <li><strong>Technical Strategy:</strong> Provide guidance to the team working on building video ads as we

<div class="content-intro"><div class="c-message_kit__blocks c-message_kit__blocks--rich_text"> <div class="c-message__message_blocks c-message__message_blocks--rich_text" data-qa="message-text"> <div class="p-block_kit_renderer" data-qa="block-kit-renderer"> <div class="p-block_kit_renderer__block_wrapper p-block_kit_renderer__block_wrapper--first"> <div class="p-rich_text_block"> <div class="p-rich_text_section">Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit <a class="c-link" href="http://www.redditinc.com/" target="_blank" data-stringify-link="http://redditinc.com" data-sk="tooltip_parent">www.redditinc.com</a>.</div> </div> </div> </div> </div> </div></div><p>The <strong>Android Platform team</strong> sets the technical direction for Android at Reddit. We design, build, and support the Android app and its development ecosystem (libraries, frameworks, observability, and build/CI tooling) that every team uses to ship delightful Reddit experiences.<br><br>As a <strong>Staff Android Engineer</strong>, you will be a technical leader for the Android organization, focusing on three pillars: <em>Client Health (Crashes/ANRs/Performance), Developer Experience, and App Architecture.</em><br><br><em>What you’ll do:</em><br>• <strong>Own and shape the architecture</strong> of Reddit’s Android App to scale for the next 100M+ DAUs.<br>• <strong>Improve Android developer experience</strong> by designing tools, workflows, and CI integrations that make it fast and safe to develop and release code.<br>• <strong>Define and operationalize guardrails</strong> (lint/static analysis, tests, and AI-assisted reviews) that catch common issues early.<br>• <strong>Build and evolve Android client health</strong> and observability foundations (events, traces, dashboards) so teams can improve user experiences.<br>• <strong>Apply AI thoughtfully</strong> to engineering workflows (e.g., code review, static analysis) for improved productivity.<br>• <strong>Mentor and Support</strong> Android engineers through design reviews, documentation, and education on platform capabilities.<br><br><em>What we expect from you:</em><br>•<strong> 8+ yea

<p><strong>Who Are We?</strong></p> <p>Prolaio believes that continuous learning and collaboration can make a significant difference in how heart care is administered. We are creating smarter ways to address heart disease and heart risks by uniting patients, care teams, and researchers on a secure, technology-enabled platform that drives clinical innovation and offers a path towards better patient outcomes.</p> <p>This is precision cardiology, and we know it’s within reach.</p> <p><strong>What Will You Do?</strong></p> <p><strong>The Overview</strong></p> <p>We are seeking a talented and motivated Mobile Software Engineer/Android Developer 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. </p> <p><strong>The Specifics</strong></p> <ul> <li>Mobile Development: Design, develop, and maintain mobile applications using Kotlin and related technologies.</li> <li>Algorithm Integration: Collaborate with backend teams to integrate state-of-the-art algorithms into mobile applications and deliver great user experiences.</li> <li>Optimize Performance: Optimize mobile app performance, ensuring efficiency, reusability, and responsiveness across a wide variety of mobile devices.</li> <li>API Integration: Work with backend teams to integrate RESTful APIs that interface with the mobile app.</li> <li>Testing and Automation: Write unit tests and UI automation tests using tools like Espresso, UI Automator, JUnit, and Appium.</li> <li>Collaboration: Work closely with data scientists, product teams, and engineers to align data solutions with business and product needs.</li> <li>Problem Solving: Tackle complex technical challenges and contribute to continuous improvement initiatives</li> </ul> <p><strong>Why Prolaio?</strong></p> <ul> <li><strong>Impactful Work:</strong> You will join in the fight against heart failure (HF) and hypertrophic cardiomyopathy (HCM) with the goal of extending and saving the lives of our patients while also being at the forefront of changing the healthcare industry through technology.</li> <li><strong>Innovative Environment</strong><strong>:</strong> You will be part