Senior Software Engineer, Frontend in San Francisco

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Job DescriptionJob Description

At Trunk Tools, we’re the leading AI company revolutionizing construction—the second-largest industry on earth. We recently raised a $40M Series B led by Insight Partners, bringing our total funding to $70M from top-tier investors including Redpoint and Innovation Endeavors. This new round is fueling our next phase of growth as we scale AI agents across the jobsite.

Our mission is to build the future of construction through intelligent automation. Despite being a $13+ trillion industry, construction still runs largely on analog processes—we’re changing that by embedding AI directly into field operations.

Founded by builders and technologists (Stanford, MIT), our team has delivered software used by over 140,000 field professionals, impacting millions of users and contributing to $10B+ in built projects. Many of us come from the field ourselves, giving us a deep understanding of the industry’s unique challenges.

After years of building the “brain” of construction, we’re now launching production-ready AI agents—starting with intelligent document processing and Q&A, and rapidly expanding into core operational workflows. Our team has doubled in the past year, and with 65+ employees (25+ engineers), we’re scaling fast and entering a period of hypergrowth—this is a rare opportunity to join at an inflection point.

What you will do and achieve :

Build Exceptional User Interfaces : Develop intuitive, high-performance, and responsive user experiences.

Push the Boundaries of React : Lead development using React, TypeScript, and modern front-end frameworks to craft clean, maintainable, and scalable UI architectures.

Collaborate Cross-Functionally : Work closely with product managers, designers, and backend engineers to translate complex workflows into elegant, user-centered interfaces.

Implement Scalable Design Systems : Contribute to and evolve our design system, ensuring consistent styling, accessibility, and performance across all platforms.

Drive Performance & Quality : Optimize rendering, reduce bundle sizes, and ensure frontend applications meet high standards for usability, speed, and stability.

Shape the Product Vision : Actively participate in product discussions, providing frontend insights that influence design decisions, technical feasibility, and long-term maintainability.

What we’re looking for :

5+ years of professional experience building web applications with React and TypeScript.

Deep understanding of modern frontend tooling (Webpack / Vite, Storybook, ESLint, etc.).

Strong grasp of UI / UX principles, accessibility, and responsive design.

Experience integrating APIs and working closely with backend teams (Node, Python, etc.).

Familiarity with design systems, state management (Redux, Zustand, Recoil), and component-driven development.

Strong problem-solving skills and ability to balance speed with code quality.

A deep passion for best in class user experience.

Bonus : Experience in AI / ML-driven products, or working within high-growth SaaS startups.

What we offer

️ A close-knit and collaborative early-stage startup environment where every voice is heard and every opinion matters

Competitive salary and stock option equity packages

3 Medical Plans to choose from including 100% covered option. Plus Dental and Vision Insurance!

Learning & Growth stipend

Flexible long-term work options (remote and hybrid)

Free lunch provided in the office in NYC & Austin - you’ll never go hungry with us!

Unlimited PTO; We truly believe in work-life balance and that hard work should be balanced with time for rest and rejuvenation

IRL / In-Person retreats throughout the year

Please note : All official communication from Trunk Tools will come from an email address ending in @ trunk.tools . If you receive outreach from any other domain, please disregard it or report it to us.

At Trunk Tools, we’re working hard to build a more productive and safer environment within the construction industry, and we strive to live by these same values here at Trunk Tools HQ. As an equal-opportunity employer, we are committed to building an inclusive environment where you can be you. We work hard to evaluate all employees and job applicants consistently, without regard to , , , , , , , , expression or , , or any other legally protected class.

Compensation Range : $160K - $200K

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.