Principal Software Engineer, Mobile

Together, we shape the streaming experience. Roku is redefining television viewing.As the leading TV streaming platform across the U.S., Canada, and Mexico, Roku aims to revolutionize how everyone engages with content on their screens. Our groundbreaking approach to streaming connects viewers to their favorite shows while empowering content creators to thrive and advertisers to connect with audiences effectively.Your journey with Roku starts on day one, where your contributions will be impactful and appreciated. Join a fast-paced public company where every team member plays a vital role. Together, we will enhance the viewing experience for millions of streamers worldwide while you gain invaluable expertise across diverse fields. Join our dedicated teamOur User Experience team thrives on collaboration, blending the talents of UX designers, researchers, and writers with our exceptional Product and Engineering teams to craft experiences that prioritize simplicity and delight. Role OverviewWe are in search of a talented UX Product Designer specialized in mobile interaction design to spearhead the development of pivotal Mobile streaming experiences. This role will be focused primarily on mobile streaming functionalities and workflows, including subscription and account management. Our recruitment process is straightforward: it begins with a conversation with your dedicated Roku recruiter, followed by a discussion with the Hiring Manager (UX Design Manager). You will then present your portfolio in a 35-minute session to a cross-functional panel of designers, researchers, and product managers, showcasing your project work.

Teamwork Makes the Stream Work. Roku is Revolutionizing the Way the World Experiences TelevisionAs the leading TV streaming platform across the U.S., Canada, and Mexico, Roku is on a mission to empower every television worldwide. Pioneering the streaming experience, our goal is to be the central hub connecting consumers with their favorite content, enabling content creators to reach vast audiences, and offering advertisers innovative ways to engage.From your very first day at Roku, your contributions will be significant and appreciated. Join our rapidly growing public company where every team member is actively involved. This role offers a chance to delight millions of viewers while gaining valuable experience across diverse disciplines. Role Overview12-Month Internship Starting Summer 2026. We are in search of a Product Design Intern to join our Mobile app team. In this role, you will receive guidance from our supportive Mobile UX Team and collaborate with a diverse group of designers, researchers, and product managers.Please attach a portfolio or case study you can discuss during the interview. Your ResponsibilitiesDevelop wireframes, prototypes, and high-fidelity designs for mobile app features.Effectively communicate design concepts to stakeholders and iterate based on their feedback.Document product designs using Figma and on our Wiki.Engage in design discovery and ideation sessions.Collaborate with researchers to conduct studies and gather customer insights. We Are Excited If You HaveCurrently enrolled in a full-time degree program pursuing a Bachelor's or Master's degree in Design, HCI, or a related field.Expected graduation date of December 2027 or later.Familiarity with Material and iOS design guidelines.A passion for mobile app design.Experience with Figma.A keen interest in the streaming TV industry.Strong verbal communication skills and the ability to influence without authority.

Join our innovative team at Sonsoft Inc. as a User Experience (UX) Designer. In this role, you will be instrumental in shaping user-centered designs that enhance the overall experience for our clients’ digital products. Collaborate with cross-functional teams to conduct user research, create wireframes, and develop prototypes that align with business goals and user needs.

At Gearset, we are at the forefront of the DevOps revolution for Salesforce, driven by our commitment to addressing the genuine, intricate challenges faced by our users in a straightforward and intuitive manner. This passion is embodied in our exceptional UX team. As a member of our team, you will tackle significant challenges alongside intelligent and supportive peers who share a passion for delivering quality experiences.We are confident in our innovative platform and the untapped potential of the market, and we have ambitious plans for future growth. As we expand, we are actively seeking talented UX designers to join our ranks. Whether you identify as a mid-level or senior UX designer, we are eager to initiate a conversation with you.

Join Redgate Software as a Product Designer!At Redgate, we develop ingeniously simple software solutions tailored for data professionals, empowering them to derive maximum value from their databases. Our innovative offerings address the intricate challenges of database management throughout the DevOps lifecycle, enhancing efficiency, minimizing errors, and safeguarding vital business data. The data community relies on Redgate for a balanced approach to speed, collaboration, and data security.Explore more about our culture and values:Redgate Software – CultureFlexa CareersGlassdoorRepVueAs a Product Designer, you will play a pivotal role in our product development process. Your insights will help us identify customer needs, prototype innovative solutions, and create engaging user experiences that resonate with our clients. Your design expertise will be crucial in simplifying complex technology challenges faced by data professionals, ensuring our products are intuitive and delightful to use.In this role, you will collaborate within agile, cross-functional teams, working closely with Product Managers, Technical Leads, and Software Engineers to deliver exceptional products and experiences that cater to our customers' needs.At Redgate, we value work-life balance and have embraced a flexible hybrid work model to support our team members.

Join Our Visionary Team!Pioneering Intelligence, a leader in leveraging cutting-edge advancements in AI and machine learning, invites talented individuals to apply for the position of Senior User Experience Designer. In this pivotal role, you will collaborate with cross-functional teams, including Product, AI research, engineering, legal, communications, and marketing, to tackle significant challenges in the life sciences sector.As we build a next-generation digital framework that integrates computational science, AI/ML, and data platforms, your contributions will be essential in transforming innovative concepts into impactful solutions. Help us shape the future of AI and contribute to projects that make a difference in human health, sustainability, and beyond.

Collaboration Fuels Innovation. Join Roku - Redefining Television ExperienceAs the leading TV streaming platform in the U.S., Canada, and Mexico, Roku is on a mission to empower every television worldwide. We pioneered the streaming revolution and strive to connect consumers with the content they love while enabling publishers to thrive and advertisers to engage effectively.From day one at Roku, your contributions are impactful and appreciated. We are a fast-paced, publicly traded company where everyone is an active participant. This role offers the chance to enhance the viewing experience for millions globally while gaining invaluable experience across various disciplines. Role OverviewWe are seeking a 12-month UX Research Intern to collaborate on a variety of research initiatives, with a strong focus on international user research. You will receive mentorship from a senior UX researcher and work closely with product managers, designers, data scientists, and engineers to influence product decisions through mixed-method insights (both qualitative and quantitative). Your ResponsibilitiesDevelop and conduct mixed-method studies (including interviews, usability tests, diary studies, concept tests, and surveys) across diverse countries and cultures.Assist with international research operations including participant recruitment, localization, incentives, and vendor coordination.Design, implement, and analyze surveys (screening, satisfaction, feature adoption) utilizing best practices for sampling and question formulation.Execute both moderated and unmoderated qualitative research, synthesizing findings into clear, actionable insights.Work alongside data science to combine behavioral data with attitudinal research to create a cohesive narrative.Present and communicate insights through comprehensive reports, debriefs, and succinct readouts tailored to various stakeholders.We Would Love to See You HaveEnrollment in a full-time degree program pursuing a Bachelor’s or Master’s degree in HCI, Psychology, Anthropology, Sociology, Design, Data Science, or a related field.

Cambridge Mobile Telematics seeks a Principal Digital Brand Designer to guide the company’s visual identity across digital platforms. This position is part of the creative team and carries responsibility for how the CMT brand appears online, in motion graphics, web design, and other digital channels. Key responsibilities Develop and refine CMT’s visual brand identity, ensuring a consistent look and feel across all digital touchpoints. Lead creative projects involving web design, motion graphics, and animated content. Collaborate with product, marketing, sales, and recruitment teams to align brand visuals with company objectives. Design a variety of materials, including trade show booths, LinkedIn ads, and homepage animations. Use advanced digital tools and AI to boost brand visibility and engagement. Requirements Proven experience in brand development and digital design. Ability to work closely with different departments and adapt visuals for various audiences and platforms. Proficiency with current digital design tools and openness to incorporating AI into creative processes. Located in or able to work from Cambridge, MA.

Senior Designer, Visual Interaction Design Position Overview: IDEO is seeking a passionate Visual Interaction Designer to join our Cambridge Studio. This role is ideal for individuals who are dedicated to creating thoughtful and elegant user experiences while showcasing strong visual design skills in the interactions people have with intricate systems, software, and services. As a Visual Interaction Designer at IDEO, you will play a key role in shaping the aesthetics, functionality, and behavior of user experiences. You will transform human-centered insights into engaging interactions and interfaces that are not only functional but also visually striking and meaningful. Your work will involve balancing visual excellence with usability, bringing a unique visual voice to each design challenge, and collaborating with a diverse team of multidisciplinary experts. This position is a fantastic opportunity for designers who are self-directed, eager to tackle complex challenges, and committed to continually honing their craft. Key Responsibilities: Contribute to a varied portfolio of projects across numerous industries, encompassing data, experience, interaction, digital product, and service design. Engage in all phases of a project, from research synthesis and concept development to prototyping, refinement, and production-ready execution. Transform human-centered insights into interaction models, visual systems, and polished digital interfaces. Create both “looks-like” and “works-like” prototypes to explore ideas, test assumptions, and communicate concepts effectively to teammates and stakeholders. Collaborate closely with designers from various backgrounds, including design research, business design, industrial design, and communication design, to develop cohesive and holistic user experiences. Design across diverse mediums and contexts such as mobile applications, websites, digital/physical systems, AR/VR, and voice interfaces, always guided by user needs and context. Advocate for high-quality visual and interaction design, fostering a culture of strong craftsmanship, curiosity, and experimentation. Qualifications: A background in visual, interaction, or graphic design related to digital products or experiences is essential. A robust portfolio that showcases visual excellence, thoughtful interaction design, and a clear perspective on typography, color, layout, and motion. Comfortable working at various fidelity levels, from rough explorations to refined, production-ready designs. Experience in producing both low and high fidelity prototypes. Proficiency in contemporary design and prototyping tools (e.g., Figma, Adobe Creative Suite).

Office location: Cambridge, UK – This role provides flexible working arrangements, allowing for primarily remote work. Candidates should ideally be located (or be willing to relocate) within a reasonable commuting distance from our office to attend in-person as needed.Are you a seasoned mobile engineer with a talent for developing seamless, secure, and high-performance mobile applications for both iOS and Android platforms?As a Senior Mobile Engineer on our Player Gateway team, you will be instrumental in defining the player experience right from their first interaction with Jagex titles, guiding them from their initial visit to becoming engaged and active members of our gaming communities. Your work will lie at the crossroads of mobile engineering, platform optimization, and enhancing player experience, delivering scalable and secure solutions that serve as vital touchpoints across the RuneScape franchise.In this role, you will serve as a subject matter expert, spearheading the delivery of intricate mobile solutions while mentoring a talented team of engineers and fostering engineering excellence across the broader organization. Key Responsibilities:Engage across the complete Software Development Lifecycle, delivering secure, production-ready code backed by automated testing, peer reviews, and dependable deployment practices.Function as a subject matter expert, ensuring that technical solutions align with product requirements and adhere to Jagex's engineering standards.Take charge of the quality and delivery of complex engineering projects, ensuring that all outcomes meet stakeholder expectations.Collaborate across various teams and disciplines to deliver impactful, scalable technical solutions.Proactively identify areas for improvement within systems, services, and engineering procedures, driving a culture of continuous enhancement throughout the organization.Support team efficiency by assisting engineers in breaking down tasks into clear, value-driven increments and contributing to a robust and resilient production environment.Participate in an on-call rotation to troubleshoot and resolve production issues as necessary.Qualifications:Extensive experience in native mobile development for both iOS (Swift / Objective-C) and Android (Kotlin / Java), with a profound understanding of platform constraints such as lifecycle management, permissions, and store policies.Demonstrated ability to deliver secure, maintainable mobile architectures that seamlessly integrate with backend microservices.Experience with automated testing, CI/CD pipelines, version control systems, and performance profiling tools.Strong debugging, optimization, and problem-solving skills, with the capability to navigate established codebases effectively.Proven ability to mentor engineers and enhance engineering standards and best practices.Familiarity with C++ is a plus.

Charles River Analytics, a proud member of the GRVTY family, is dedicated to developing innovative solutions and cutting-edge technology to address some of the world’s most pressing challenges. Our dynamic team of tech entrepreneurs collaborates to lead advancements in artificial intelligence, robotics, smart sensing, and human-centered computing. Our research and development initiatives not only enhance government programs but also unlock new opportunities within the commercial sector. As part of GRVTY, we are excited to expand our capabilities while maintaining our commitment to excellence in national security domains. Are you ready to join us in accelerating our mission-driven innovations? We would love to hear from you! We are currently seeking a motivated and experienced senior researcher who specializes in Human-Systems Integration, Human Factors, or Human-Computer Interaction. In this role, you will create groundbreaking tools and interfaces that enable users to effectively collaborate with technology in demanding work environments. As a leader, you will guide and expand teams of researchers, designers, and engineers to analyze work contexts and user requirements, develop innovative human-AI interaction concepts, and demonstrate and evaluate interactive prototypes. Your role will involve defining and directing technical projects, fostering strong partnerships with customers, sponsors, and collaborators. Additionally, you will share your expertise in Human Systems, working alongside cross-disciplinary teams to explore new research opportunities in exciting technical fields.

Harvard University seeks a Learning Designer to help create engaging learning experiences on campus in Cambridge. This position centers on supporting faculty and staff in shaping instructional materials and courses that encourage student participation and improve learning results. Role overview The Learning Designer works closely with academic teams to design, implement, and assess educational content. The aim is to foster innovative approaches that make courses more interactive and effective for students. Collaboration Expect regular collaboration with both faculty and staff. Together, you will identify instructional needs, develop course materials, and refine learning experiences based on feedback and evaluation. Focus areas Designing and updating instructional materials Implementing new course structures and activities Evaluating course effectiveness to support student learning

Are you a talented Mechanical Design Engineer looking to make a significant impact in the field of Cellular Origins? Join our dynamic team at ttp1, where innovation meets collaboration. In this role, you will leverage your engineering expertise to design cutting-edge mechanical systems that enhance our product offerings and drive our mission forward.

Role overview Harvard Art Museums is looking for a Creative Exhibition Designer to play a key part in shaping exhibitions in Cambridge. This position works alongside curators and other colleagues to create engaging display concepts that encourage exploration and align with the museum’s educational mission. What you will do Design exhibition layouts, guiding projects from the first concept through to installation Choose materials and finishes that enhance both the artwork and the visitor experience Work closely with curators, educators, and other stakeholders at every stage of the design process Make sure each exhibit supports the museum’s educational standards and goals Requirements Artistic vision and hands-on experience in exhibition design Ability to manage projects, juggle deadlines, and set priorities Attention to detail in both creative choices and technical execution

Harvard University Press is hiring a Senior Book Jacket Designer based in Cambridge. This position plays a central role in shaping the visual presentation of the Press’s publications, focusing on book cover design that resonates with readers and captures the essence of each title. Role overview The Senior Book Jacket Designer works closely with authors, editors, and marketing staff to develop covers that reflect the unique character of every book. Creative thinking and a strong sense of visual storytelling are essential in this role. What you will do Develop and present design concepts for book jackets Select typography and imagery that align with each book’s tone and subject matter Create layouts that highlight the main themes of the work Collaborate with authors, editors, and marketing teams throughout each stage of the design process

We are seeking a creative and detail-oriented Design & Onboarding Associate to join our dynamic team at Telefonica Tech in Cambridge. In this role, you will play a crucial part in enhancing user experiences and facilitating seamless onboarding processes for our clients. Your contributions will directly impact customer satisfaction and retention.The ideal candidate will have a strong eye for design and a passion for providing exceptional support to new users. If you thrive in a collaborative environment and are eager to help shape the future of our services, we would love to hear from you!

Join Cambridge Mobile Telematics (CMT), the largest telematics service provider globally, dedicated to enhancing road safety for all drivers. Our innovative AI-driven platform, DriveWell Fusion®, aggregates data from millions of IoT devices—including smartphones, proprietary Tags, connected vehicles, and dashcams—fusing it with contextual information to provide a comprehensive view of driver and vehicle behavior. Our insights are utilized by auto insurers, automobile manufacturers, commercial mobility companies, and public sector entities to enhance risk assessment, safety protocols, claims processing, and driver improvement initiatives. With our headquarters in Cambridge, MA, and offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, we safeguard millions of drivers worldwide every day.As a Principal Machine Learning Engineer at CMT, you will craft algorithms that model the physical phenomena associated with vehicle and human movements as captured by mobile sensors and IoT devices. Your expertise will help solve complex real-world challenges and drive innovative solutions through exploratory data analysis on intricate, high-dimensional datasets. Leveraging your knowledge in statistics, machine learning, deep learning, signal processing, physics, programming, and data modeling, you will spearhead Data Science projects, independently create new solutions to meet CMT’s goals, and contribute to company-wide prototype development and product enhancements.If you are a collaborative, customer-focused, and inventive Principal Machine Learning Engineer eager to contribute to safer roads and better driving practices, we welcome your application!

Join Cambridge Mobile Telematics (CMT), the leading telematics service provider dedicated to enhancing road safety and driver behavior. Our innovative AI-powered platform, DriveWell Fusion®, integrates sensor data from millions of IoT devices—including smartphones, proprietary Tags, connected vehicles, and dashcams—to deliver a comprehensive analysis of driving patterns and vehicle dynamics. Our insights are leveraged by auto insurers, automakers, and mobility companies to improve risk assessment, safety measures, and claims processes.We are excited to announce the development of DriveWell Atlas, a cutting-edge suite of foundation models that utilizes large-scale, multi-modal telematics signals to promote safer driving outcomes across various workflows such as risk assessment, safety improvement, and claims management.As a key contributor to our IC2 Foundation Models team, you will collaborate with experienced scientists and engineers to prototype, train, evaluate, and deploy time-series foundation models. This highly technical role is ideal for individuals with a solid software background and emerging expertise in applied machine learning.

Join our dynamic team at Telefonica Tech as a Design & Onboarding Associate Level 1, where you will play a pivotal role in the onboarding process for our innovative products and services. You will assist in crafting engaging user experiences, collaborating closely with design teams, and ensuring a seamless transition for clients. This position provides an excellent opportunity to develop your skills in design and customer engagement within a leading technology firm.