ManTech Senior Web Developer in Orlando, Florida


  • Develop websites and applications using front end technologies like HTML, Javascript, CSS

  • Backend focused web development using tools like React, PHP, GIT

  • Design and develop integration of text, graphics, sound and/or video.

  • Perform functional objectives based on Scrum planning

  • Own the overall quality of code including unit testing, functional testing and performance

  • Writes and tests application source code that realizes the specifications outlined in the functional specification documentation

  • Transforms graphical mockups of tools and applications and creates HTML and CSS to create functional interfaces · Is responsible for maintaining consistency of HTML and CSS across all applications and correct usage and application according to established style guidelines

  • Design, build, and implement data-driven user interfaces

  • Lead moderate to complex lifecycle development tasks

  • Participate in end-to-end software development lifecycle, e.g., design, code review, etc.

  • Produce prototypes and effectively articulate design decisions

  • Write clean code that is maintainable, scalable, and extensible

  • Improve usability, reliability, security, and performance


  • US citizenship and ability to obtain a DoD Security Clearance

  • Bachelor's degree and 10 years of related experience

  • Able to work collaboratively, coordinating among cross-functional teams and manage priorities

  • Excellent communication skills (oral and written) and analytical skills; strong and demonstrated interpersonal skills to include influence, negotiation, collaboration and diplomacy

  • Ability to coordinate and work with diverse groups of subject matter experts

  • Experience with MVC and PHP and is a plus

  • Very comfortable with Angular experience with developing front–end applications using JavaScript and a JavaScript framework, including Angular, React, and Vue

  • Experience interacting with databases using SQL

  • Experience working in an Agile delivery environment

  • Experience with API/Web Service technologies, including REST APIs or GraphQL

  • Experience with Git or other source control technologies

  • Experience with Linux or other Unix based operating systems

  • Expert-level ability with XHTML/HTML5, CSS, JavaScript, AJAX, and JSON/XML

  • Strong understanding of infrastructure and scalability

  • Experience with content management systems


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Years of Experience

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ManTech International Corporation is comprised of approximately 7,300 talented employees who use advanced technology to help government and industry meet some of their greatest challenges around the world. We adhere to the simple, no-nonsense values on which ManTech was founded more than four decades ago, aligning squarely with the mission objectives of our customers. As our customer base continues to expand and diversify, we continue to diversify our workforce and solutions. Nearly half our employees have a military background, and approximately 70 percent hold a government security clearance. As a leading provider of innovative technology services and solutions for the nation's defense, security, health, space, and intelligence communities; we hold nearly 1,100 active contracts with more than 50 different government agencies.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Waretime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law. If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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