Frontend Engineer

Entangl is building the operating system for critical infrastructure, starting with data centers. We turn fragmented drawings, documentation, telemetry, alarms, procedures, and operational knowledge into a system that helps teams understand what is happening, identify problems, and operate facilities safely. We are looking for an exceptional Frontend Engineer to build the interfaces through which operators interact with complex physical infrastructure. This is not a role for someone who only converts Figma files into components. You will be expected to understand the user, question the workflow, simplify complex information, make sound product decisions, and take complete ownership of what reaches the customer. Our customers operate facilities where confusion, missing information, and poor usability have real consequences. The product must be fast, clear, reliable, and exceptionally easy to use; even when the underlying systems are complicated. What You Will Build You may work on: Interactive electrical and mechanical system diagrams.Interfaces for navigating complex data center infrastructure.Real-time telemetry, alarms, abnormalities, and operational issues.Workflows for diagnosing and resolving equipment problems.Procedure-generation and execution tools.Interfaces for validating asset data and customer documentation.Dashboards used by operators, engineers, executives, and customers.Tools that allow Entangl to be deployed and configured quickly across many sites.Systems that adapt to different customers, facilities, asset types, and data sources.Internal tools that allow our team to move faster without compromising quality. The challenge is not simply displaying information. It is deciding what matters, how it should be structured, and how to help a user take the correct action quickly. What You Will OwnBuild polished, production-quality frontend features from concept to deployment.Take ownership of entire user workflows, not isolated tickets.Work directly with customers and internal domain experts to understand operational problems.Translate complex engineering concepts into interfaces that feel simple and intuitive.Make thoughtful product and design decisions when specifications are incomplete.Build reusable components and systems without creating unnecessary abstraction.Improve performance, responsiveness, accessibility, and reliability.Identify and resolve inconsistencies before customers discover them.Test your own work thoroughly across realistic customer scenarios.Work closely with backend, AI, data, controls, and product engineers.Improve the systems through which customer-specific functionality can be delivered without fragmenting the product.Raise the quality bar for every part of the user experience.Leave the codebase, product, and engineering process better than you found them. What Success Looks LikeYou will not be measured by the number of tickets you close or lines of code you write. You will be measured by: Whether customers can understand and use what you build without extensive explanation.Whether complex workflows become simpler.Whether your work is dependable in real operational environments.Whether you identify product problems before being asked.Whether you ship quickly without leaving behind careless work.Whether your systems make future development faster.Whether customer-specific requirements are handled without damaging the core product.Whether other engineers become more effective because of the standards and systems you introduce.Whether customers actively notice and value the improvements you make. A feature is not complete because the code has been merged. It is complete when it works reliably, solves the customer’s problem, and is being used successfully. Who You AreYou care deeply about craft and notice details that others miss.You are highly product-minded and think beyond the immediate implementation.You can take an ambiguous problem and drive it through design, development, testing, and deployment.You do not need every decision to be made for you.You naturally ask what the user is trying to accomplish.You are comfortable challenging requirements that do not make sense.You move quickly, but you do not use speed as an excuse for low-quality work.You test edge cases and realistic workflows rather than only the happy path.You take responsibility when something you built does not work.You communicate clearly with both technical and non-technical people.You are comfortable working in a demanding environment with high standards.You care more about building an exceptional product than protecting your personal scope.You are relentlessly resourceful when documentation, tools, or context are incomplete. Technical StrengthsYou should have strong experience with: Modern JavaScript or TypeScript.A modern component-based frontend framework.Building complex, stateful web applications.Designing maintainable component and state-management systems.Responsive layouts and browser compatibility.Frontend performance and reliability.Automated testing and disciplined manual verification.Working effectively with design systems or creating them where needed. Experience with interactive diagrams, graph visualization, real-time data, telemetry, industrial software, digital twins, CAD, geospatial tools, or complex enterprise applications is valuable but not required. We care more about evidence of exceptional ability than a specific technology checklist. Product JudgmentGreat frontend engineering at Entangl requires more than technical execution. You should be able to look at a feature and ask: What decision is the user trying to make?What information do they need first?What can be removed?What could be misunderstood?What happens when the data is incomplete or incorrect?How will this behave across different facilities and customers?How will an operator use this under pressure?Is this genuinely finished, or does it merely appear finished in a demo? You should be willing to learn the operational domain deeply enough to make good decisions independently. You May Be a Strong Fit IfYou have built a complex product from an early stage.You have owned features from initial problem discovery through customer adoption.You have worked on tools where accuracy and usability both mattered.You have improved a frontend architecture without slowing the company down.You have built interfaces for complicated systems, workflows, or datasets.You frequently identify important product improvements without being assigned them.Your previous teammates would describe you as fast, demanding, dependable, and highly thoughtful.You have examples of work where the final result was materially better because you refused to accept the obvious implementation. This Role Is Not for You IfYou only want to implement detailed designs created by someone else.You consider a feature finished once it works on your own machine.You avoid customer conversations.You wait for every edge case and acceptance criterion to be documented.You prioritize visual polish while ignoring the underlying workflow.You prioritize architecture purity over delivering value.You tolerate obvious inconsistencies or broken states.You require a product manager to tell you what to do next.You are satisfied with work that is merely functional.You blame incomplete requirements rather than helping create clarity. How We WorkWe are ambitious, direct, and highly accountable. Engineers at Entangl are expected to understand the customer, protect the company’s reputation, care about commercial outcomes, and take responsibility for the complete result. We do not separate “product thinking” from engineering. The people building the product should understand the problems deeply and contribute to deciding what should be built. We value people who can move with urgency while maintaining strong judgment. We expect direct disagreement, independent thinking, and full commitment once a decision has been made. How to ApplyDo not send us a generic cover letter. Tell us: What is the best frontend product or feature you have personally built?What specific parts did you own?What was technically or product-wise difficult about it?Describe a time you received incomplete requirements and had to determine the right solution yourself.Tell us about a frontend problem you found before a customer or manager reported it.Share an interface you believe is exceptionally well designed and explain why.Based on what you can learn about Entangl, what part of our product would you be most interested in building?Please include links to products, code, or examples of work wherever possible. We are looking for evidence of craft, speed, judgment, initiative, and unusually high standards.