Senior Frontend Engineer - AI-Driven UI, Remote

Sardine; New York (NY); Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Remote-first culture

Flexible time off

Health insurance for US employees

401(k) matching

Job summary

Sardine, a remote-first fintech risk platform, seeks a frontend-focused Senior Software Engineer in the US to own the design and delivery of user-facing experiences using React and TypeScript. You will also engage with Go backend services as needed, mentoring peers and establishing frontend standards.

This high-autonomy role emphasizes AI-assisted workflows, performance, and accessibility, with leadership responsibilities and collaboration across product and engineering teams.

Qualifications

• 7+ years of proven experience as a software engineer, with deep specialization in frontend development.
• Expert-level React and TypeScript, with a strong eye for UX, performance, and accessibility.
• Demonstrated fluency with AI and agentic coding tools (e.g., Claude), and a track record of using them to ship efficiently.
• Leadership experience: setting technical standards, mentoring engineers, and driving key technical decisions.
• A track record of shipping high-quality, production-grade frontend at scale.
• Working proficiency in Go for backend services (secondary to frontend work).
• Proficiency in English for casual chats to formal reports.

Responsibilities

• Design, build, and own user-facing features in React and TypeScript - polished, accessible, performant, and production-ready.
• Set the technical direction and quality bar for our frontend, and mentor the team.
• Use AI and agentic development tools to move quickly and establish best practices across the team.
• Dip into Go to build and extend backend services and APIs behind your features.
• Collaborate with business stakeholders to architect and implement new experiences from inception to delivery.
• Contribute to product and technical roadmaps and the broader engineering direction.
• Craft and maintain user-facing documentation to drive understanding and adoption.
• Help shape our engineering culture and uphold high standards.

Skills

React

TypeScript

Claude AI

Leadership

Frontend scale

Go backend

English fluency

Tools

Golang

PostgreSQL

BigQuery

Python

Java

Terraform

Bigtable

Job description

Sardine, a remote-first fintech risk platform, seeks a frontend-focused Senior Software Engineer in the US to own the design and delivery of user-facing experiences using React and TypeScript. You will also engage with Go backend services as needed, mentoring peers and establishing frontend standards.

This high-autonomy role emphasizes AI-assisted workflows, performance, and accessibility, with leadership responsibilities and collaboration across product and engineering teams.