UI Engineer — AI‑Powered Web Apps (Remote)

Marchex

United States

On-site

USD 95,000 - 140,000

Full time

9 days ago

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Benefits offered by this job

Medical, Dental, Vision insurance

401k Retirement Savings

Paid Holidays

Generous PTO

Job summary

Marchex is seeking an experienced UI Engineer to build and operate modern web applications, APIs, and cloud services. You will work on frontend with Angular, TypeScript, HTML/CSS, and collaborate across product and infra teams.

Backend development with C#/.NET and Azure experience are valued, along with CI/CD and AI-assisted tooling. You will contribute to distributed systems, ensure maintainable code, and participate in deployment pipelines while adapting to ambiguity and fast-paced product

Qualifications

Bachelor's degree in computer science, engineering, or a related technical field, or equivalent professional experience.
3+ years of professional software design and development experience.
Strong frontend development experience with Angular preferred, or comparable modern frameworks such as React, Vue, Next, or Nuxt.
Solid understanding of frontend architecture, state management, responsive UI development, asynchronous programming, and reactive patterns such as RxJS or Redux.
Experience with backend development using C# and modern .NET, preferably .NET 8 or later. Node.js, TypeScript, Scala, or functional backend experience is a plus.
Experience with RESTful APIs, API gateways, authentication and authorization patterns, SQL and NoSQL concepts, and cloud-native services. Azure experience is a plus.
Experience with CI/CD, infrastructure-as-code, monitoring, and testing practices using tools such as GitHub Actions, Bicep, New Relic, Application Insights, Jasmine, Cypress, or Playwright.
Hands-on experience using AI-assisted developer tools such as Cursor, Claude Code, Codex, or GitHub Copilot, with the ability to evaluate AI-generated code critically and produce maintainable, well-tested software.
Demonstrated experience developing production mobile applications for iOS and Android, including requirements interpretation, application design, implementation, testing, debugging, release support, and ongoing maintenance.
Familiarity with LLM integration concepts, reusable AI workflows, MCP-enabled capabilities, Kafka, or event streaming is a plus.
Strong written and verbal communication skills, with the ability to coordinate deployments, document decisions, mentor teammates, and make sound tradeoffs while operating through ambiguity.

Responsibilities

Design, develop, test, troubleshoot, and operate modern web applications, APIs, backend services, and integrations across distributed systems.
Build intuitive, performant, accessible, and maintainable user experiences using Angular, TypeScript, HTML, CSS, and related frontend technologies.
Support cloud-native applications, APIs, data integrations, and related services. Azure experience is a plus.
Work with CI/CD pipelines, infrastructure-as-code, observability tools, and deployment processes to deliver reliable production software.
Collaborate with product, UX, engineering, infrastructure, and management partners; communicate clearly and help move work forward through ambiguity.
Use AI-assisted development tools responsibly while maintaining ownership of design decisions, testing, security, maintainability, and production readiness.
Demonstrated experience developing production mobile applications for iOS and Android.