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Web & Applications Developer Senior | Westminster, CO
Web & Applications Developer Senior
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Westminster , CO

|

Remote, Hybrid

|

Contract

Westminster, CO

|

Remote, Hybrid

|

Contract

Job ID 75936|Posted Sep 1, 2026
JOB DESCRIPTION

Join a collaborative engineering team as a Senior Web & Applications Developer, where you’ll help support and enhance legacy applications and APIs while contributing to new solutions in a team-oriented, on-site environment. This role offers the opportunity to work closely with specialists across mechanical engineering, material science, optical engineering, and IT while participating in coding best practices, peer programming, and design reviews.

Responsibilities

  • Develop, test, debug, and document software solutions that align with business and technical requirements.
  • Support and maintain legacy applications and APIs.
  • Collaborate with cross-functional technical teams to solve complex problems and deliver effective solutions.
  • Participate in peer programming sessions, design discussions, and code reviews.
  • Build and run unit and integration tests to help ensure application quality.
  • Follow established software development life cycle processes and coding standards.
  • Identify project issues and communicate them to the project lead in a timely manner.
  • Maintain a regular work schedule and contribute to a positive, productive team environment.
  • Perform additional duties as needed to support the team and project goals.

Skills

  • Bachelor’s degree in a related field plus 4 or more years of relevant experience, or equivalent technical experience in lieu of education.
  • Strong experience in application development using C#, WPF, and/or ASP.NET.
  • Background supporting front-end UI through middle-tier application development.
  • Working knowledge of Agile/Scrum methodologies.
  • Experience with unit testing, test-driven development, or behavior-driven development.
  • Solid analytical, problem-solving, and collaboration skills.
  • Understanding of web services and application integrations.
  • Ability to learn new technologies and adapt to evolving needs.

Preferred Skills

  • Experience with Web API and REST services.
  • Knowledge of Microsoft SQL and/or Oracle databases.
  • Familiarity with Git source control and Azure DevOps.
  • Experience with Entity Framework or similar ORM tools.
  • Knowledge of jQuery or other JavaScript libraries.
  • Experience with MVC controls or third-party UI controls.
  • Background in writing reports.
  • Experience in manufacturing or process control environments.

Horizontal is committed to fostering an inclusive, respectful, and collaborative workplace where diverse perspectives are valued. We encourage candidates from all backgrounds to apply and bring their unique experience and perspective to the team.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

Horizontal is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

Horizontal is committed to taking affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process or participate in the interview process, click here to request accommodation assistance.

All applicants applying must be legally authorized to work in the country of employment.

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