Senior Software Engineer I, Frontend Infrasturcture & Experience

United States Digital Space LLC; Chicago (IL); Hybrid; USD 129,000 - 209,000; Full time

Benefits offered by this job

Equity included

RSU plans

Flexible PTO

Comprehensive benefits package

Fertility benefits and parental leave

Learning stipend and career pathing

Curated in-office experience

Volunteer Week and donation matching

Employee Resource Groups

Job summary

the company is seeking a Senior Frontend Engineer to shape our FIX team. You will design foundational frontend systems, lead end-to-end projects, and raise the quality bar with strong TypeScript and React expertise.

You will mentor peers and collaborate with product, design, and infra to deliver accessible, high-performance UI experiences. The role emphasizes building scalable design systems, improving tooling, and advancing accessibility and localization across product experiences, with a

Qualifications

• 5+ years of software engineering experience with a track record of impact.
• Strong frontend expertise in TypeScript and React.
• Experience building reusable frontend systems, components, tools, or infrastructure.
• Care for user experience, accessibility, performance and maintainability.
• Comfort working in a large frontend codebase with many stakeholders.
• Clear communication and collaboration across teams.

Responsibilities

• Design and build foundational frontend systems, components, tools, and patterns.
• Lead large projects end-to-end from design to rollout and operational follow-through.
• Improve developer experience in a large TS/React codebase with better tooling and docs.
• Build polished, accessible customer-facing experiences aligned with product standards.
• Partner with product, design and infrastructure teams to solve frontend problems.
• Mentor engineers through code reviews, pairing, and guidance.
• Contribute to ongoing work like editors frameworks, navigation routing, and design system extensions.

Skills

TypeScript

React

Frontend systems

Component libraries

Accessibility

Performance

Code review

Mentoring

Tools

Cypress

Jest

Ruby on Rails

Job description

At the company, we have found our people. We’re a genuinely approachable, exceptionally kind, and intensely passionate crew.

We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity – inside and outside our organization.

To flourish here, you must be prepared to set a high bar for yourself and those around you. There is always a way to contribute: Acting with autonomy, having accountability and being open to new perspectives are essential to our continued success.

Our deep curiosity to learn and our eagerness to share diverse passions with others gives us balance and injects a one-of-a-kind vibrancy into our culture.

If you are driven to solve exhilarating challenges and have a bias toward action in the face of change, you will be empowered to make a real impact here, with a sharp and passionate team at your back. If the company sounds like a place where you can thrive, we can’t wait to meet you.

WHAT YOU'LL DO

the company’s product is the control center for thousands of the world’s most sophisticated marketing teams. TheFrontend Infrastructure & Experience (FIX) team builds the platform foundations that every product engineer relies on and owns key parts of the end-user experience.

The team makes it easy for engineers across the company to build polished, accessible, and consistent UIs. FIX owns our design system and component library, internationalization stack, code generation and scaffolding tooling, and the navigation and routing layer of the product. The team also owns key customer-facing experiences including our data tables and our rich text, drag-and-drop, and code editors.

As a Senior Engineer on FIX, you will build high-impact frontend infrastructure and product experiences used across the company. You will lead important projects from design through rollout, raise the quality bar through technical judgment and code review, and help other engineers move faster by making the product easier to build, test, and maintain.

In this role you will:

• Design and build foundational frontend systems, components, tools, and patterns used by engineers across the company

• Lead large projects end-to-end, including technical design, implementation, testing, rollout, and operational follow-through

• Improve the developer experience of working in a large TypeScript and React codebase through better abstractions, tooling, documentation, and examples

• Build customer-facing product experiences that are polished, accessible, performant, and consistent with the company’s product standards

• Partner with product engineers, designers, and infrastructure teams to solve cross-cutting frontend problems

• Mentor other engineers through code review, pairing, technical guidance, and clear communication

Recent and ongoing work on the team includes:

• Developing the framework used to build our marketing message editors

• Migrating the navigation and routing layer to a fully React-based system

• Extending the design system with semantic tokens and supporting a product rebrand

• Building type-safe scaffolding and API tooling for frontend development

• Improving frontend testing infrastructure with Cypress, Jest, and related tooling

• Advancing accessibility, localization, and consistency across product experiences

Parts of our stack with which you will work:

• TypeScript, React

• Cypress, Jest, RSpec

• Frontend build, packaging, and code generation tooling

• Ruby on Rails

WHO YOU ARE

• Have 5+ years of software engineering experience with a strong track record of technical impact

• Are highly skilled in modern frontend development, especially TypeScript and React

• Have experience building reusable frontend systems, components, tools, or infrastructure

• Care deeply about user experience, accessibility, performance, and maintainability

• Are comfortable working in a large frontend codebase with many stakeholders

• Communicate clearly, collaborate well across teams, and help raise the technical bar for those around you

• Bonus experience

• Experience building design systems or component libraries

• Experience with frontend testing frameworks such as Cypress or Jest

• Experience with code generation, linting, codemods, or other developer tooling

• Experience with internationalization, localization, or accessibility

• Experience with Ruby on Rails

For candidates based in the United States, the pay range for this position at the start of employment is expected to be between $128,842 and $209,368/year with an expected On Target Earnings (OTE) between $144,000 and $234,000/year (including bonus or commission). Your exact offer may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. In addition to cash compensation, this role qualifies for a comprehensive Total Rewards package that includes equity grants of restricted stock (RSUs) so that you will own a piece of our company.

#LI-Hybrid

**WHAT WE OFFER**

*the company benefits vary by location, and we encourage you to review our specific benefits offerings for each country here. More details on benefits plans will be provided if you receive an offer of employment.

From offering comprehensive benefits to fostering hybrid ways of working, we’ve got you covered so you can prioritize work-life harmony. the company offers benefits such as:

• Competitive compensation that may include equity

• Retirement and Employee Stock Purchase Plans

• Flexible paid time off

• Comprehensive benefit plans covering medical, dental, vision, life, and disability

• Family services that include fertility benefits and equal paid parental leave

• Professional development supported by formal career pathing, learning platforms, and a yearly learning stipend

• A curated in-office employee experience, designed to foster community, team connections, and innovation

• Opportunities to give back to your community, including an annual company-wide Volunteer Week and donation matching

• Employee Resource Groups that provide supportive communities within the company

• Collaborative, transparent, and fun culture recognized as a Great Place to Work®

**ABOUT the company

**the company is the leading customer engagement platform that empowers brands to Be Absolutely Engaging™. the company helps brands deliver great customer experiences that drive value both for consumers and for their businesses. Built on a foundation of composable intelligence, BrazeAI™ allows marketers to combine and activate AI agents, models, and features at every touchpoint throughout the the company Customer Engagement Platform for smarter, faster, and more meaningful customer engagement. From cross-channel messaging and journey orchestration to Al-powered decisioning and optimization, the company enables companies to turn action into interaction through autonomous, 1:1 personalized experiences.

The company has been consistently recognized as a Leader in marketing technology by industry analysts, and was named a G2 “Best of Marketing and Digital Advertising Software Product” in 2026. the company was also named a 2026 Best Places to Work by Built In, a 2025 America’s Greenest Companies by Newsweek, and a 2025 Fort