Senior UI/UX Developer (Next.js / App Builder)

About Us

TransPerfect is the world's largest provider of language services and technology solutions for global business. From offices in over 140 cities on six continents, TransPerfect offers a full range of services in 170+ languages to clients worldwide. More than 6,000 global organizations employ TransPerfect's GlobalLink® technology to simplify management of multilingual content. With an unparalleled commitment to quality and client service, TransPerfect is fully ISO 9001 and ISO 17100 certified. TransPerfect has global headquarters in New York, with regional headquarters in London and Hong Kong.

About the Role

We’re a small team inside TransPerfect building a massive internal platform—a low-code application builder that’s powering how our entire company operates. It’s ambitious, complex, and not “done.” We operate more like a startup embedded inside a global company, which means we move fast, figure things out as we go, and need people who are excited to build something real from the ground up.

• Drag-and-drop UI builder
• Highly dynamic, data-driven interfaces
• Enterprise-scale… without enterprise-level red tape

Responsibilities

• Build and evolve a drag-and-drop app builder used across the company
• Collaborate and shape frontend architecture decisions (React / Next.js)
• Implement highly interactive, state-heavy UIs
• Create component systems that non-developers can configure and use
• Balance performance, usability, and flexibility in a complex environment
• Partner closely with product and design (who have opinions) and engineering (who have different opinions)

Requirements

We’re not looking for someone who needs perfect specs and clean workflows. We’re looking for someone who:

• Is comfortable when things are a little messy
• Can figure things out without a playbook
• Has strong eye for design and knows when to pivot
• Can think like both a developer and a designer
• Doesn’t panic when priorities shift or structure evolves

Skills

Core Technical Stuff (Yes, This Still Matters):

• React / Next.js (deep experience, not surface-level)
• Advanced state management (handling complex, nested, high-volume UI state)
• TypeScript (strict mode)—you’re comfortable modeling complex systems
• Component architecture—you’ve built systems, not just screens
• Styling systems (we use a mix of MUI + Tailwind… experience in both is preferred)
• Performance tuning (keeping things smooth even when they shouldn’t be)

Bonus points:

• Experience with low-code/no-code tools
• Thinking in JSON schemas / UI-as-data
• Building drag-and-drop interfaces

Design Mindset

We need engineers who care about UX, not just functionality.

• You can design dense interfaces that still feel usable
• You think about how users actually interact with systems
• You understand tradeoffs between flexibility and clarity
• You’re comfortable shaping UX—not just implementing it

Work Environment

• We’re building something big with a small team
• The structure isn’t perfect
• Priorities can shift
• We’re figuring some things out as we go
• You’ll have real ownership
• Your decisions will actually matter
• You won’t be stuck maintaining legacy code forever
• You’ll help define how this platform evolves

Why This Role?

If you’re looking for:

• A perfectly structured, predictable environment → this isn’t it
• A chance to build something meaningful, complex, and evolving → this is it

This is a role for someone who wants to:

• Build, not just maintain
• Influence, not just execute
• Ship real product used at scale

Qualifications

• Bachelor’s degree or equivalent experience
• Experience building highly interactive web apps
• Strong performance mindset
• Familiarity with modern frontend tooling

Career Growth

At TransPerfect, there are a lot of growth opportunities. All departments offer career growth and development that can combine your skills, interest and experience. We encourage our employees to have a continuous dialogue with management about growth opportunities throughout your tenure with the company.

Benefits

• Comprehensive benefits package including medical, dental, and vision insurance
• 401k matching
• Membership to child-care providers
• Other TransPerks
• Your birthday off