Senior Full-Stack Engineer

Role Overview

AdsX is hiring a Senior Full-Stack Engineer (Zite/Fillout) for a highly frontend-focused role at a fully remote company. You’ll build core user experiences across apps, forms, scheduling, websites, and database, collaborating closely with design to implement an extensible design system.

The posting also includes a track for Support Manager (Fillout’s first Support Manager), leading and leveling up the support organization and partnering with product/engineering to shape what gets built next.

Responsibilities

Frontend Engineer (Zite)

• Build core UI/UX across products (apps, forms, scheduling, websites, and related data surfaces)
• Deliver fast, intuitive interfaces with strong attention to performance
• Work on component architecture and maintain a consistent, extensible design system
• Collaborate with design to bring high-quality designs to life

Support Manager (Fillout)

• Lead and develop a support team across time zones
• Improve support metrics (e.g., CSAT, response time, backlog, handle time)
• Create processes for speed, consistency, and quality
• Capture customer feedback systematically and advocate for the customer perspective
• Build scalable support foundations: training, playbooks, response templates, and knowledge systems
• Innovate with AI for automation and intelligent routing while preserving a human experience

Requirements

• 5+ years building frontend-heavy applications
• Expertise with React, Next.js, TypeScript, and Tailwind CSS
• Strong grasp of frontend performance and component architecture

Support Manager requirements

• 6+ years in technical customer support/success (ideally SaaS)
• 3+ years leading high-performing support teams
• Balanced approach of strategy + execution

Nice-to-haves

• Experience implementing/extending design systems in collaboration with design teams
• Experience using AI in support workflows/automation