Senior Frontend Developer

InRhythm; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

InRhythm, a leading modern product consultancy, seeks a Senior UI/Frontend Engineer to build data-heavy UI features using React and TypeScript in a frontend-focused capacity.

You will work with AG Grid to create sophisticated data views, maintain a reusable UI component library, and contribute to CI/CD pipelines and client-facing architecture. This role offers on-site work, with opportunities to mentor and influence large-scale web apps for enterprise clients.

Qualifications

• Strong hands-on experience with AG Grid in production.
• Proficient in React and TypeScript for complex UIs.
• Experience building reusable UI component libraries.
• Knowledge of responsive design and web performance.
• Familiarity with DevOps and deployment automation.

Responsibilities

• Build and maintain complex, data-heavy UI features using React and TypeScript in a 100% frontend-focused capacity.
• Work extensively with AG Grid to build, optimize, and maintain data views and displays.
• Create and maintain a reusable UI component library used across dashboards and calculator features.
• Manage CI/CD pipelines for frontend codebases and advise on deployment automation.
• Collaborate with clients to architect frontend solutions and provide estimates.

Skills

AG Grid

React

TypeScript

Frontend architecture

CI/CD

UI library

Responsive design

Accessibility

Tools

Webpack

Vite

CI/CD tooling

Job description

InRhythm is a leading modern product consultancy and digital innovation firm with a mission to make a dent in the digital economy. Founded in 2002, InRhythm is currently engaged by Fortune 50 enterprises to bring their next generation of digital products and platforms to market. InRhythm has helped hundreds of teams launch mission-critical products that have created a positive impact worth billions of dollars.

InRhythm's unique capabilities of Product Innovation and Platform Modernization services are the most sought-after. The InRhythm team of A+ thought leaders don't just "get an assignment," they join the company to do what they love. It's that passion that has helped us grow rapidly and consistently deliver on our commitment to helping clients develop better, faster, and in rhythm.

What We Do At InRhythm

We bring enterprises' most urgent, important products to market with high-velocity, high-quality and 10x impact. We enable innovative cultures by coaching teams with the right mix and maturity of modern tools, methods, and thought leadership.

This is a unique opportunity to get in on the ground floor of an evolving team. InRhythm clients include a broad range of highly visible and recognizable customers, including, but not limited to:

• Fidelity
• Mastercard

From greenfield to tier-one builds, our clients look to us to deliver their mission-critical projects related to product strategy, design, cloud native applications, as well as mobile and web development. The projects we work on literally change the world.

We are looking for a Senior UI/Frontend Engineer:

At InRhythm, you will:

• Build and maintain complex, data-heavy UI features using React and TypeScript in a 100% frontend-focused capacity
• Work extensively with AG Grid to build, optimize, and maintain sophisticated grid-based data views and complex data displays
• Create and maintain calculator functionality that enables users to run their own simulations with intuitive, responsive interfaces
• Maintain and extend a comprehensive UI component library used across dashboard and calculator functionality, ensuring consistency and reusability
• Manage CI/CD pipelines for frontend codebases with DevOps knowledge and best practices for deployment automation
• Work with clients to architect solutions that solve real-world frontend challenges
• Provide technical estimates and milestones for frontend features and stories
• Mentor junior engineers and contribute to the growth of InRhythm via technical interviews

What you bring to the table (Core Requirements):

• Deep, hands-on experience with AG Grid in production applications—including complex configurations, performance optimization, and custom integrations
• Working knowledge of DevOps practices for managing CI/CD pipelines and deployment automation
• Experience building and maintaining reusable UI component libraries at scale
• Strong understanding of responsive design, accessibility (a11y), and web performance optimization
• Solid verbal and written communication and consultant/client-facing skills; a true consultant who takes initiative and is a self-starter

Nice to have:

• Experience with Angular or other frontend frameworks
• Knowledge of Java or backend technologies (helpful for working with full-stack teams)
• Experience with build tools (Webpack, Vite, etc.) and their optimization
• Familiarity with financial or asset/wealth management domain applications
• Prior experience with data visualization libraries and complex financial applications

What makes you stand out from the pack:

• You have pushed UI code into production and has shipped multiple complex web applications to market
• You are a true craftsperson in frontend development—someone who is an avid practitioner and stays current with modern web technologies
• You have worked on long-term tenures at enterprise-level organizations, building sophisticated user interfaces at scale
• You enjoy coaching junior engineers on frontend best practices, but want to remain hands-on with code
• Experience in payments or asset/wealth management domain applications is a plus
• Open to work on-site - 5 days per week

Why Be an InRhythmer?

People at InRhythm are entrepreneurs and innovators at heart and problem solvers who find new ways to overcome challenges. InRhythm continues to evolve and grow – and is now prepared to accelerate "scale" with the addition of this role to our community.

We've been named an Inc. 5000 Hall of Fame Fastest Growing Company for 9 years, Deloitte Fast 500 company for 5 years, and Consulting Magazine Fastest Growing Company winner several years in a row. If you're looking forward to working with awesome colleagues in a high-growth environment and tight-knit community, we're looking forward to hearing from you!