Lead Software Engineer Mobile App

Do you want to be the founding engineer who sets the technical bar for CoCounsel Legal on mobile? Are you the kind of engineer who is as comfortable making architecture decisions as writing production code — and who gets energy from building something brand new? If so, this role is built for you. As Lead Software Engineer for the CoCounsel Legal Mobile App, you will be the technical anchor of a new mobile engineering team — setting the foundation for how CoCounsel Legal is experienced on iOS and Android. You will drive architecture decisions, establish engineering standards, mentor engineers on the team, and personally contribute to delivering the product, working closely with the Engineering Manager and Product to shape what gets built. About the Role In this opportunity as Lead Software Engineer CoCounsel Legal Mobile App, you will: Establish the technical foundation of the CoCounsel Legal mobile app, making early architecture decisions on platform strategy (native vs. cross-platform), project structure, state management, offline handling, and CI/CD that will define how the team builds for years. Deliver hands-on engineering contributions, writing production-quality iOS and/or Android code across core features — from the main agent chat experience to file access, authentication, and notifications. Integrate with the CoCounsel backend, working closely with Agent Core and AI Platform teams to connect the mobile app to agent APIs, streaming responses, file and workspace infrastructure, and user context. Define and uphold mobile engineering standards, establishing code review practices, testing approaches, performance benchmarks, and accessibility requirements for the team. Mentor and support mobile engineers, providing technical guidance, pairing on complex problems, and helping engineers grow their skills in a greenfield environment. Partner with Product and Design, translating requirements and designs into technically sound, performant mobile experiences — pushing back constructively when tradeoffs affect quality or feasibility. Contribute to the broader Application Experience engineering community, sharing mobile-specific insights and patterns with peer teams building the web and desktop experiences. About You You’re a fit for the role of Lead Software Engineer CoCounsel Legal Mobile App if your background includes: 7+ years of software engineering experience, with significant depth in iOS (Swift/SwiftUI) and/or Android (Kotlin/Jetpack Compose) development. Proven experience leading technical direction on a mobile product — architecture decisions, technology choices, and engineering standards — not just execution. Track record shipping high-quality, production mobile applications to real users in a professional or enterprise context. Experience integrating mobile apps with cloud APIs including streaming, authentication (OAuth/SSO), and file handling. Strong sense of mobile UX quality — deep familiarity with platform conventions, accessibility, and performance expectations on iOS and Android. Ability to mentor and elevate other engineers through code review, pairing, and design discussions. Clear technical communicator — able to explain tradeoffs to both engineers and non-technical product partners. Additional preferred qualifications include: Experience with cross-platform frameworks (e.g., React Native, Flutter) and understanding of when to use them vs. native. Background in legal tech, productivity software, or other professional-services SaaS products. Experience building AI-powered mobile features — streaming chat interfaces, voice input, contextual actions. Familiarity with enterprise mobile deployment (MDM, app configuration, SSO) and associated security requirements.d in the US. #LI-IG1 What’s in it For You? Hybrid Work Model: We’ve adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected. Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance. Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow’s challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future. Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing. Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together. Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives. Making a Real-World Impact: We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world. DISCLAIMER The above information in this description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job. About Us Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news. We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward. As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. 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