JavaScript / Front-End Developer
Job Summary
We are seeking a skilled JavaScript/Front-End Developer to support a major modernization initiative transforming a 40-year-old mainframe application into a modern, cloud-based user interface. The developer will help convert 750 legacy screens into responsive, accessible UI compatible with modernization tools that interface with COBOL and a C#/.NET backend.
The ideal candidate is an expert in modern JavaScript frameworks, understands how to collaborate within a time-boxed modernization schedule, and is comfortable working closely with UI/UX designers, backend engineers, and stakeholders.
Responsibilities
• Develop modern, responsive front-end components that replace legacy mainframe interfaces.
• Translate UI/UX design artifacts (wireframes, prototypes, design system specs) into high-quality front-end code.
• Implement reusable components aligned with the program’s design system and modernization tool constraints.
• Ensure front-end code integrates cleanly with C#/.NET APIs and works within COBOL-interop modernization platforms.
• Work with UI/UX and backend teams to estimate workload, define sprint objectives, and maintain an achievable modernization cadence.
• Participate in PI Planning, Sprint Planning, Refinement, and Demos within an Agile SAFe environment.
• Identify modernization challenges early and collaborate on solutions (performance, data handling, state management, rendering issues).
• Conduct code reviews, ensure coding standards, and maintain version control across the modernization effort.
• Optimize front-end performance for users transitioning from legacy terminal workflows.
• Produce documentation for components, workflows, and integration patterns.
Required Abilities / Experience
• 5+ years of professional JavaScript/Front-End development experience.
• Advanced proficiency with at least one modern framework: React, Angular, Vue, Svelte, or equivalent.
• Strong experience with HTML5, CSS3, TypeScript, and component-driven UI architecture.
• Demonstrated success modernizing or rebuilding legacy applications, especially those with large-scale screen counts.
• Experience integrating front-end code with C#/.NET web APIs.
• Ability to interpret complex workflows and map them to modular, maintainable UI components.
• Experience working in Agile (Scrum or SAFe) teams, managing stories, estimates, and iterative releases.
• Strong debugging skills across browsers, devices, and data integration layers.
• Experience using Git or similar version control tools.
Desired Abilities / Experience
• Experience modernizing mainframe, COBOL-driven, or character-based legacy applications.
• Familiarity with cloud modernization patterns and API-first design.
• Experience using or integrating with UI modernization tools that output COBOL- or C#-compatible artifacts.
• Knowledge of DevSecOps workflows, CI/CD pipelines, automated testing, and artifact management.
• Experience working with large design systems or helping build reusable UI libraries.
• Understanding performance tuning for enterprise-scale front-end applications.
• Experience in government, defense, or highly regulated environments.
...A tribal organization in Miami seeks a General Manager to lead operations at its Casino, Hotel, and Resort. Key responsibilities include ensuring compliance with regulations, optimizing financial performance, and enhancing guest satisfaction. The ideal candidate will possess...
...Job Description Alliance Services, Inc. is seeking a travel nurse RN Home Health for a travel nursing job in Wisconsin Rapids, Wisconsin. Job Description & Requirements ~ Specialty: Home Health ~ Discipline: RN ~ Start Date: 02/02/2026~ Duration: 7 weeks...
Manages parts operations within the dealership to provide the highest level of external and internal customer satisfaction while maximizing return on investment through parts sales, inventory control, and expense control. Optimizes parts department processes. Attracts,...
...materials that directly engage and serve the needs of five million New Yorkers in thirteen languages. Job Description The Graphic Design Intern will report to members of the Design team and assist the Marketing and Digital Communications Unit with a range of daily...
...Nurse Manager NICU Lead neonatal care where newborns and families come first The Nurse Manager NICU role is your chance to guide a compassionate neonatal team in a premier Northern California medical center, shaping the future of newborn care with heart, skill, and...