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Senior Frontend Software Engineer

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Onsite

Senior Frontend Software Engineer

Sardine

Senior Frontend Software Engineer

Skills

ReactNodeTypescriptPythonGolangJavaPostgreSQLAIComplianceTerraform

23 days ago

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Important information


Contract type:

Permanent

Salary:

$145,000 – $195,000 / year

Location:

United States

Work mode:

Onsite

Published on:

2 October 2026

What they need


  • As a frontend-focused Senior Software Engineer, you will own the design and delivery of the user-facing experiences at the heart of our AI products
  • Your primary focus is building polished, performant, production-grade interfaces in React and TypeScript
  • You’ll also work in Go on the backend services and APIs that power those experiences, but that’s a secondary part of the role
  • This is a high-autonomy, high-leadership position: you’ll develop new features at scale, set the standard for how we build on the frontend, mentor the engineers around you, and use AI/agentic tooling (like Claude) to ship far faster than a traditional team would
  • The ideal candidate pairs exceptional frontend craft with the judgment to lead and the discipline to be relentlessly efficient with modern, AI-assisted workflows
  • 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 lift the people around you through mentorship and code review
  • Use AI and agentic development tools (such as Claude) fluently and effectively to move quickly, and help establish best practices for AI-assisted development across the team
  • Dip into Go to build and extend the backend services and APIs behind your features when needed
  • Collaborate closely with business stakeholders to architect and implement new experiences from inception to delivery
  • Contribute to product and technical roadmaps, and to the broader direction of the engineering team
  • Craft and maintain user-facing technical documentation that drives understanding and adoption of our products
  • Play a pivotal role in shaping our engineering culture and ensuring high standards across the organization
  • Technologies we use:
  • TypeScript (React + Node)
  • Golang
  • Bigtable
  • Postgres / PostgreSQL
  • BigQuery
  • Python
  • Java
  • Terraform

Benefits

  • MacBook Pro delivered to your door
  • Annual fitness allowance
  • 4% matching in 401k
  • Company-wide offsites, the last one was at Miami
  • One-time stipend to set up a home office — desk, monitors, etc
  • Generous equity compensation
  • Monthly meal stipend
  • 100% of health insurance, dental, and vision coverage for employees and 50% for dependents
  • Work from anywhere: Remote-first Culture
  • Unlimited paid time off and minimum 2 weeks/year of mandatory vacation
  • Unlimited access to an expert financial advisory- Comfort with ambiguity and the ability to prioritize autonomously against business needs
  • A track record of shipping high-quality, production-grade frontend at scale
  • Demonstrated fluency with AI and agentic coding tools (e.g., Claude), and a track record of using them to ship efficiently and raise your own throughput
  • Leadership experience: setting technical standards, mentoring engineers, and driving key technical decisions
  • Working proficiency in Go (or the ability to become productive in it quickly) for backend services — secondary to your frontend work
  • 7+ years of proven experience as a software engineer, with deep specialization in frontend development
  • Proficient in English — from casual chats to formal reports
  • Relevant industry experience in fintech, fraud, compliance, risk, or regulated systems is preferred
  • Customer-centric approach with strong empathy toward users
  • Expert-level React and TypeScript, with a strong eye for UX, performance, and accessibility
  • Exposure to data tooling or pipelines is a nice-to-have, but not required

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