Description We are offering a short-term contract employment opportunity for a Graphical User Interface (GUI) Programmer IV in Philadelphia, Pennsylvania. The role involves reviewing, analyzing, and modifying programming systems, encoding, testing, debugging, and installing to support a graphical user interface for products and programs. The job function also requires gathering requirements, creating specifications, and developing code. Responsibilities: • Develop and modify programming systems to support a graphical user interface for various products and programs. • Conduct thorough reviews and analyses of the programming systems. • Carry out encoding, testing, debugging, and installation tasks. • Gather necessary requirements and create accurate specifications. • Craft efficient code to support existing applications. • Utilize knowledge of practices and procedures within the field, i.e., C, C language programming, XMotif programming interfaces, and GUI API packages. • Follow specific instructions and pre-established guidelines to perform the job functions. • Liaise with the project leader or manager as required. • Perform tasks under supervision, without the need for exercising independent judgment. Requirements • Proficiency in procedures related to GUI programming • Experience in supervising and leading a team • Knowledge of best practices in GUI programming • Ability to write clear and detailed specifications • Strong background in programming languages, particularly R Code and C++ • Understanding of user experience (UX) and user interface (UI) principles • Experience in API Development • Familiarity with Assertion Markup Language • Skill in debugging applications • Experience in designing and developing interfaces • Proficiency in Typescript • Deep understanding of GUI - Graphical User Interface principles • Experience in working with existing applications • Ability to exercise independent judgment • Knowledge of encoding techniques • Experience with AB Testing methodologies • Familiarity with the technical requirements of a GUI Programmer IV role. Technology Doesn't Change the World, People Do.® Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .