Senior Software Engineer II, Frontend Platform

Alloy; New York (NY); Hybrid; USD 198,000 - 250,000; Full time

Benefits offered by this job

Unlimited PTO

Employee stock options

Health benefits with HSA

401(k) 100% match

Parental leave 16 weeks

Home office stipend

Learning stipend

Well-being benefits

Hybrid work arrangement

Job summary

Alloy is seeking a senior frontend engineer to join the Frontend Platform team. You will lead design and delivery of large frontend investments, shape architecture across the stack, and build shared foundations and customer-facing surfaces.

You will collaborate with engineering, design and product to turn broad needs into scalable, high-quality solutions with meaningful impact. You will drive quality with strong technical judgment, clear documentation, and improved developer experience,

Qualifications

• 8+ years of frontend experience building complex web apps.
• Proven track record leading large frontend or platform initiatives.
• Strong judgment balancing UX, product needs, and maintainability.

Responsibilities

• Lead design and delivery of large frontend investments spanning teams.
• Shape frontend architecture with standards and shared patterns.
• Build shared foundations and customer-facing surfaces.
• Collaborate with engineering, design and product to turn needs into scalable solutions.
• Raise quality through documentation, developer experience, and reliability improvements.
• Shape AI and agentic workflows in frontend development to improve delivery.

Skills

JavaScript/TypeScript

React

Frontend architecture

Team leadership

UX judgments

Job description

Alloy is an AI‑powered identity, fraud prevention, and compliance platform that helps financial organizations accelerate onboarding, stop fraud, and scale compliance across the customer lifecycle.

We are looking for a senior frontend engineer to join our Frontend Platform team.

About the Team

The Frontend Platform team creates shared UI systems, frontend architecture, developer experience, and reliable performance tools that enable multiple product teams to build high‑quality, scalable product experiences quickly and consistently.

What You’ll Be Doing

• Lead the design and delivery of large, ambiguous frontend and platform investments that span multiple teams or product areas
• Shape technical direction across the frontend stack through architecture, standards, and durable shared patterns
• Build and improve both shared frontend foundations and customer‑facing product surfaces
• Partner closely with engineering, design, and product to turn broad needs into simple, scalable solutions with meaningful user and business impact
• Raise the quality bar across teams through strong technical judgment, clear documentation, and improvements to developer experience, reliability, and engineering practices
• Help shape effective use of AI and agentic engineering workflows in frontend development to improve leverage, quality, and delivery speed

Who We’re Looking For

• Senior frontend engineer with 8+ years of experience, deep fundamentals in JavaScript or TypeScript, modern HTML and CSS, and experience building complex web applications with a modern framework such as React
• Proven track record of leading large, complex frontend or platform initiatives and influencing technical direction beyond the immediate team
• Strong engineering judgment with the ability to balance user experience, product needs, maintainability, operational excellence, and delivery speed
• Comfortable operating in ambiguity and turning loosely defined problem spaces into clear technical direction and execution
• Strong product and business context, using it to influence prioritization and improve customer outcomes
• Thoughtful use of AI‑enabled tools, maintaining a high quality bar without outsourcing core engineering thinking

Benefits

• Unlimited PTO and flexible work policy
• Employee stock options
• Medical, dental, vision plans with HSA (monthly employer contribution) and FSA options
• 401(k) with 100% match up to 4% of annual employee compensation
• 16 weeks of paid parental leave for new parents
• Home office stipend for new employees
• Annual learning and development stipend
• Well‑being benefits including access to ClassPass, OneMedical, UrbanSitter, and Spring Health
• Hybrid work environment: office days Tuesday through Thursday with flexible remote options
  

This position has a salary range of $198,000 to $250,000.

Alloy is proud to be an equal‑opportunity workplace and employer. We’re committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or veteran status. We are committed to an inclusive interview experience and provide reasonable accommodations to applicants with visible and invisible disabilities. We encourage applicants to share needed accommodations with their recruiter.