Senior Frontend Engineer

About Siteline

Siteline is a Series A SaaS startup in the construction space. We're a team of 25 full-time employees who live and work remotely across the US, with a small in-person office in San Francisco.

Siteline is a Series A SaaS startup in the construction space. We're a team of 25 full-time employees who live and work remotely across the US, with a small in-person office in San Francisco.

We're on a mission to modernize finance for construction, an industry that employs 1 out of every 10 workers, but lacks good software tools to get the job done. Payments in construction are fundamentally broken — the antiquated billing process hasn't evolved in decades, and construction is one of the slowest industries to get paid in. We've found a unique wedge into this huge market and are growing quickly.

Millions of hardworking people are affected by this broken system — in turn making construction more expensive and inefficient for society every year. When everyone up and down the chain is on the same page with payments, contractors can focus on actually building, instead of mountains of paperwork. We’re reimagining construction finance to help contractors get paid, grow their business, and build a better future for all of us.

We’re looking for a seasoned engineer and frontend technical lead ****- someone who can design and ship complex product features from the first line of code to production launch.

• Weigh in on product direction - collaborate with product and design to shape features, make tradeoffs, and ensure we’re solving the right problems for our users
• Build high-impact product features in Type Script + React (functional components, hooks, MaterialUI)
• Apply a deep understanding of React state management & lifecycle to architect predictable, maintainable UIs
• Use GraphQL (Apollo) to power type-safe data flows between frontend and backend
• Model and manage complex nested/relational datasets for billing, compliance, and analytics
• Contribute to backend services to support frontend features
• Write clear design docs, QA plans, and deployment strategies for your projects

• 4+ years of professional software engineering experience
• Proficiency in React - especially state management, lifecycle patterns, and Hooks
• Strong full-stack fluency - comfortable making schema changes, debugging API calls, and tuning backend queries
• Track record as a product engineer - you think deeply about user workflows, not just code paths
• Experience modeling relational data
• Proven ability to deliver projects end-to-end: from architecture to production
• Strong collaboration skills and a desire to work in a small, senior, high-trust team

• Experience in SaaS or complex web applications
• Construction tech, ERP, or billing/payments domain knowledge
• Accessibility best practices, or advanced PDF/file handling
• Building shared libraries or developer tooling
• Creativity - You like to express yourself creatively through hobbies or interests outside of coding

• Small but mighty - everyone here is excellent at what they do
• Impact from day one - you’ll shape product decisions and see your work live quickly
• Challenging problems - not “yet another CRUD app”
• In-office with purpose - we collaborate in-person in our SF office centrally located near Union Square 4 days a week, with weekly team lunch
• Low-ego culture - smart, kind teammates who care about doing great work (and are really fun to be around)

Move Quickly, Together Speed is our advantage, but alignment is our path to victory. We will go farthest, fastest if we work in unison. Prioritize the mission, establish clear owners and deliverables, and execute with confidence.

Reach for the Sky We are curious, open-minded, and courageous. We challenge ourselves and each other to ask more questions, push boundaries, and deliver excellence every day.

Run Lean Construction is a scrappy industry where companies must do more with less. Same here. Operate efficiently, optimize strategically, and always get the most bang for our buck.

Be the Steel Builds fail when the foundation is faulty. The…