Senior Applications Platform Engineer

Do you like operating across product and platform boundaries? Are you someone who can ship user-facing features, strengthen shared application architecture, and lead complex integration work across a large codebase. PassiveLogic is looking for a highly motivated and dedicated candidate who wants to learn from the best and stretch their skills. About PassiveLogic® PassiveLogic is the first fully autonomous platform for buildings. We’ve reinvented the fundamental principles of automation to democratize technology, optimize buildings, and reduce the world’s carbon footprint. We are a team of technologists, engineers, and creatives dedicated to making a sustainable impact through real-world solutions. We are looking for team members who have a passion for technology and want to work on cutting-edge problems with real-world solutions. Our culture is built on bringing together the most talented engineers, thinkers, and creatives—backed by the world’s leading investors—working together to make the future a reality. About the Role This is a career-defining opportunity to play a crucial role in a hyper-scale AI company that is transforming the future of autonomous systems, energy, and the built environment. As our Senior Applications Platform Engineer you’ll join the Applications Platform team who are responsible for the shared application layer of Hive Controllers. We build and maintain cross-app user experiences, frontend platform infrastructure, and integration points that connect cloud services, hardware-aware domain models, and PassiveLogic Studio applications such as Live, Blueprint, Creator, Portfolio, and Qortex. What you’ll do Lead design and implementation: Lead complex features spanning multiple applications and shared packages. Build and maintain: Shared UI infrastructure, app-shell behaviour, layout systems, and reusable platform components. Develop integration layers: Between frontend applications, cloud services, Hive workflows, and hardware/domain models. Improve: Reliability, maintainability, and developer velocity across the monorepo. Drive: Technical design, debugging, code review, and architectural cleanup for cross-cutting systems. Partner with: Product, design, cloud, and hardware teams to deliver coherent end-to-end solutions. Mentor: Engineers and help raise the team’s standards for quality, testing, and technical decision-making. What you’ll bring If your experience does not meet all our posted requirements below, we’d still love to hear from you. We are looking for practitioners who are passionate about understanding people, committed to lifelong learning, and driven by the love of what they do. If that’s you, please apply! You must have Proven experience : Strong professional experience building production software in JavaScript and TypeScript. And a track record of owning complex frontend or application-platform systems, not just isolated feature work. Exceptional communication skills : the ability to lead technical work across team boundaries. Organized and strategic : Experience working effectively in a large monorepo or similarly shared codebase. Collaborative mindset : Enjoy working across teams, contributing to integrated campaigns, and aligning event strategies with overall marketing goals. Adaptability : Comfortable in a fast-paced startup environment, eager to learn, iterate, and innovate. Problem solving : You own this role. When issues arise, be the empowered force that solves them, rolling-up. You should have Experience designing reusable UI infrastructure, shared component systems, or design-system-adjacent platforms. Strong understanding of application architecture, state management, and cross-system integration. Ability to debug across UI, data flow, domain models, and runtime behavior. Strong engineering judgment and the ability to break down ambiguous problems into executable work. It’s helpful to have Experience with internal developer tooling, CI/CD workflows, test infrastructure, or observability. Familiarity with hardware-integrated software, IoT, controls, or model-heavy application domains. Background in improving platform reliability and developer productivity at scale. Past knowledge of mentoring engineers and shaping technical direction for shared systems. We know there are candidates who might not fit everything we’ve described above, or who might have experience and skills we haven’t considered. PassiveLogic can sometimes be flexible enough to shift responsibilities to the right person, or otherwise identify open or upcoming roles that may better fit your professional background. Even if you don’t meet all the requirements above, we still want to hear from you. Compensation, Benefits & Perks: Competitive compensation Generous equity share package Medical, dental and vision coverage Disability and life Insurance options Flex PTO Team-building events Free catered lunch in the office Monday — Friday Free ski pass (We are at the base of Big Cottonwood Canyon) Free National Park pass Onsite Gym A Note on Working Onsite: This role is based in our Salt Lake City headquarters. We believe that creativity and cohesion flows best when we are all together. When you’re constantly innovating, transforming whole industries, inventing new products and processes, and creating a more sustainable future through technology—and we are doing all these things—we believe we’re better as a team in-person. That’s why all of our teams work from one of our office locations, five days a week. When applying, include: A cover letter telling us why you're the perfect candidate for PassiveLogic A resume Extra mile — include a description of a project (of any type) you personally created, devised, built, managed, organized, or designed that was of your own self-initiative Diversity and inclusion Diversity, inclusion, and belonging is woven into our values and everything we do. We welcome all—come as you are and bring your whole self. We are proud to be an Equal Opportunity Employer. We celebrate diversity every day by maintaining a safe and inclusive environment for our employees at every stage of their careers.

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