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

Who We Are:

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. For more information, please visit our website at www.transperfect.com.

Summary:

What We’re Building (and Why It’s Kind of a Big Deal)

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. It’s complex. It’s not “done.” And that’s exactly why it’s fun.

Think:

• Drag-and-drop UI builder

• Highly dynamic, data-driven interfaces

• Enterprise-scale… without enterprise-level red tape

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.

What You’ll Actually Be Doing

You won’t just “work on UI.” You’ll help define how this whole thing works.

• 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)

The Kind of Engineer This Role Needs

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

If you’ve worked in a perfectly polished, process-heavy dev org: this will feel different.

If you’ve ever said “this could be built way better if we just…”: this is your playground.

Core Technical Stuff (Yes, This Still Matters)

You’ll need to be strong here, we’re building something non-trivial.

• 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… yes, really, so 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 (This Is Big for Us)

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

What It’s Like Working Here

Let’s be real:

• 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

But also:

• 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 Is Worth It

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

The Basics (Still Required)

• Bachelor’s degree or equivalent experience

• Experience building highly interactive web apps

• Strong performance mindset

• Familiarity with modern frontend tooling

Where Your Career Is Going:

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.

End your job search and find your career at TransPerfect #careersNOTjobs.

Why TransPerfect:

For more than 25 years, we have honed a culture where all kinds of ideas are shared and new ventures are not only welcomed, but also encouraged. In this fast-paced environment, employees are intellectually stimulated so they can grow alongside the organization. From Intern to President, we believe that every single employee should have a voice and contribute to the amazing services we offer our clients.

We also offer a comprehensive benefits package including medical, dental, and vision insurance, 401k matching, membership to child-care providers, and other TransPerks. You even get your birthday off because let's face it, we're stoked that you were born.

TransPerfect provides equal employment opportunity to all individuals regardless of their race, color, creed, religion, gender, age, sexual orientation, national origin, disability, veteran status, or any other characteristic protected by state, federal, or local law

For more information on the TransPerfect Family of Companies, please visit our website at www.transperfect.com.

Final Thought

We’re not pretending this is a polished, perfectly structured role.

We are saying:
If you’re the kind of engineer who thrives in ambiguity, likes solving hard problems, and wants to help shape something big.

You’ll probably love it here.

You’ll need to be strong here, we’re building something non-trivial.

• 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… yes, really, so experience in both is preferred)

• Performance tuning (keeping things smooth even when they shouldn’t be)

Design Mindset (This Is Big for Us)

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