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Senior Front-End Software Engineer

Union Technologies

$115,000 - $185,000
Dec 9, 2025
Dallas, TX, US
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Union Technologies is reindustrializing America’s defense manufacturing base with a first-of-its-kind Factories-as-a-Stockpile model, integrating advanced robotics, manufacturing, and software into sovereign factory systems at scale.

Requirements

  • 5–8+ years building production web UIs with server-side rendering and minimal-JS approaches.
  • Strong HTML/CSS fundamentals; proficiency with HTMX (or similar: Alpine.js, Datastar, Turbo, Unpoly) and template engines (Go preferred).
  • Experience consuming Go-backed APIs (REST/gRPC) and real-time transports (WebSockets/SSE).
  • Proven delivery of performant, accessible UIs in constrained environments (kiosk/tablet, variable networks).
  • Strong testing discipline and experience with frontend observability.
  • Security mindset: authN/Z, session hardening, secure-by-default UI design.
  • Familiarity with modern CSS frameworks and component libraries (Tailwind, Shadcn, Bootstrap, or similar).

Responsibilities

  • Build SSR applications using HTMX + Go templates with progressive enhancement, component reusability, and minimal JavaScript.
  • Design operator-facing workflows for traveler routing, work orders, quality checkpoints, data visualization, and real-time machine dashboards.
  • Implement resilient form handling: validation, optimistic UI patterns, live updates, and retry strategies for unreliable shop-floor connectivity.
  • Define and enforce UI performance budgets (TTFB, latency) and accessibility standards across various display formats.
  • Collaborate with backend and controls engineers to model machine/part states; integrate barcode/RFID scanning and label/pack slip printing.
  • Harden frontends with secure defaults: CSP, CSRF protections, session management, role-based views, and secure exports.
  • Contribute to shared design guidelines, review checklists, and a lightweight SSR/HTMX component library.

Other

  • Conduct peer reviews, mentor mid-level engineers, and contribute to technical design discussions and cross-functional planning.
  • Relocation to Dallas, TX is required.
  • Exceptional talent shouldn't be bound by geography.
  • Additional incentives may be available for those who move quickly.
  • Compensation Range: $115K - $185K