Senior UI​/UX Developer; Next.js​/App Builder

Who We Are:

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

Trans Perfect has global headquarters in New York, with regional headquarters in London and Hong Kong. For more information, please visit our website at

We’re a small team inside Trans Perfect 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.

• 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.

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)

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.

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)
• Type Script (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)

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

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

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

• 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

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

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