Senior Frontend Architect - React & UX Mastery

Monstro; New York (NY); On-site; USD 180,000 - 230,000; Full time

Benefits offered by this job

Competitive salary

Equity

Health insurance

Vision coverage

Dental coverage

Disability coverage

Job summary

Monstro in New York City is seeking a senior frontend developer to own features in our React applications and help shape an AI-powered fintech platform.

You will work on architecture, testing, accessibility, and CI/CD pipelines, mentoring peers, and collaborating with design and backend teams to deliver polished, scalable UI experiences.

We value fast learners, strong communication, and a passion for building trustworthy software in regulated finance.

Qualifications

• 5+ years of professional frontend development experience.
• Strong proficiency in React and TypeScript with production web-app experience.
• Appreciation of UX and the creative process.
• Solid grasp of modern CSS, responsive design principles, and accessibility standards.
• Experience with test-driven development and frontend testing frameworks.
• Contributions to design systems or component libraries.
• Confidence working with APIs and understanding backend services and system integrations.
• Comfortable working with build tooling, bundlers, and CI/CD integration.
• Clear communicator who thrives in a collaborative, fast-moving environment.
• Adaptable fast learner who is excited about staying on top of the latest trends in frontend development and wants to lead the team in adopting the latest best practices

Responsibilities

• Build and own features across our React applications, delivering polished experiences for our users and clients. Ensure the product feels native and responsive across different viewports, while maintaining a shared codebase. Utilise the latest AI powered tools in your workflow, from design to build to deployment.
• Drive architectural decisions for our frontend stack—component structure, state management, navigation patterns, and API integration strategies.
• Champion a test-driven development culture. Design and implement comprehensive testing strategies spanning unit, integration, and end-to-end tests.
• Ensure our application meets accessibility standards, making our product usable for all users.
• Work with build tooling, bundlers, and CI/CD pipelines to ensure smooth, reliable releases.
• Partner with designers to translate vision into implementation and with backend teams to define effective API contracts.
• Mentor other engineers through code reviews, pairing, and technical guidance, raising frontend standards across the organization.

Skills

React

TypeScript

Frontend development

UX appreciation

CSS & responsive

Accessibility standards

Test-driven development

Design systems

APIs & backend integration

Build tooling & CI/CD

Clear communication

Mentorship

Tools

CI/CD tooling

Frontend testing frameworks

Job description

Monstro in New York City is seeking a senior frontend developer to own features in our React applications and help shape an AI-powered fintech platform.

You will work on architecture, testing, accessibility, and CI/CD pipelines, mentoring peers, and collaborating with design and backend teams to deliver polished, scalable UI experiences.

We value fast learners, strong communication, and a passion for building trustworthy software in regulated finance.