Frontend Senior Software Engineer

Siteline • San Francisco, CA

87d • $165,000 - $185,000

About The Position

Siteline is a Series A SaaS startup in the construction space, aiming to modernize finance for an industry that employs 1 out of every 10 workers but lacks good software tools. The company is on a mission to address the broken payment processes in construction, which have not evolved in decades, making the industry one of the slowest to get paid. The role is for a seasoned engineer and frontend technical lead who can design and ship complex product features from the first line of code to production launch. This frontend-heavy role requires full-stack fluency and a product mindset, working closely with product and design teams to shape features and make user-focused tradeoffs. The engineer will spend much of their time in TypeScript and React, while also modeling data in Postgres and debugging backend services.

Requirements

• 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

Nice To Haves

• 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

Responsibilities

• 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 TypeScript + 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

Benefits

• Salary range: $165,000 - $185,000 annually
• Comprehensive health, dental, and vision insurance
• Commuter benefits for in-office work
• Equity options to ensure that you share in our success as we grow together
• Annual $1K learning stipend for classes, certifications, conferences, or other meaningful career development
• Unlimited PTO policy with an encouraged three-week annual minimum

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 11-50 employees