Senior UI/UX Engineer (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 160 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 builderHighly dynamic, data-driven interfacesEnterprise-scale… without enterprise-level red tapeWe 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 DoingYou 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 companyCollaborate and shape frontend architecture decisions (React / Next.js)Implement highly interactive, state-heavy UIsCreate component systems that non-developers can configure and useBalance performance, usability, and flexibility in a complex environmentPartner closely with product and design (who have opinions) and engineering (who have different opinions)The Kind of Engineer This Role NeedsWe’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 messyCan figure things out without a playbookHas strong eye for design and knows when to pivotCan think like both a developer and a designerDoesn’t panic when priorities shift or structure evolvesIf 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 systemsComponent architecture—you’ve built systems, not just screensStyling 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 toolsThinking in JSON schemas / UI-as-dataBuilding drag-and-drop interfacesDesign Mindset (This Is Big for Us)We need engineers who care about UX, not just functionality.You can design dense interfaces that still feel usableYou think about how users actually interact with systemsYou understand tradeoffs between flexibility and clarityYou’re comfortable shaping UX—not just implementing itWhat It’s Like Working HereLet’s be real:We’re building something big with a small teamThe structure isn’t perfectPriorities can shiftWe’re figuring some things out as we goBut also:You’ll have real ownershipYour decisions will actually matterYou won’t be stuck maintaining legacy code foreverYou’ll help define how this platform evolvesWhy This Role Is Worth ItIf you’re looking for:A perfectly structured, predictable environment → this isn’t itA chance to build something meaningful, complex, and evolving → this is itThis is a role for someone who wants to:Build, not just maintainInfluence, not just executeShip real product used at scaleThe Basics (Still Required)Bachelor’s degree or equivalent experienceExperience building highly interactive web appsStrong performance mindsetFamiliarity with modern frontend toolingWhere 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 lawFor more information on the TransPerfect Family of Companies, please visit our website at www.transperfect.com.Final ThoughtWe’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 systemsComponent architecture—you’ve built systems, not just screensStyling 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 usableYou think about how users actually interact with systemsYou understand tradeoffs between flexibility and clarityYou’re comfortable shaping UX—not just implementing it