Developer III

Johns Hopkins University

Johns Hopkins University

Software Engineering
Baltimore, MD, USA
USD 62,900-110,100 / year
Posted on May 10, 2025

Whiting School of Engineering's Material Science & Engineering Department is seeking a Developer III who will be responsible for the creation, implementation, maintenance, performance, production support and documentation of various departmental and enterprise-wide application systems. This includes but is not limited to the installation, modification, and testing of new and/or upgraded applications (packages or home grown), operating systems, file structures, hardware, communication devices, and productivity tools. Applies analysis techniques and procedures to gather and then translate business requirements into functional/technical specifications and designs. Using functional specifications and designs, produces all or part of the deliverables.

Maintains databases and application system code.

Job Scope/Complexity

Under limited guidance, responsible for full life cycle of small to medium sized moderately complex projects. Demonstrates strong ability in technology and/or strong understanding of the business/clinical/education process. Builds and maintains client relationships through positive interactions.

Specific Duties & Responsibilities

  • The responsibilities listed below are typical examples of the work performed by this position.
  • Not all duties assigned to this position are included, nor is it expected that everyone in this position will be assigned every job responsibility.

Analysis & Requirements Gathering

  • Define moderately complex business/clinical/education problems by meeting with clients to observe and understand current processes and the issues related to those
  • processes. Provide written documentation of findings to share with the client and other IT colleagues.
  • Gather moderately complex system requirements by meeting with clients and researching existing technology to understand the business requirements and possible solutions for new applications.

Design & Development

  • Develop detailed tasks and project plans by analyzing project scope and milestones for moderately complex projects in order to ensure product is delivered in a timely fashion according to software lifecycle standards.
  • Write functional/technical specifications by taking the provided moderately complex system requirements and putting them into functional and technical descriptions for use by programmers and business analysts to develop technical solutions.
  • Develop/change data input, files/database structures, data transformation, algorithms, and data output by using appropriate computer language/tools to provide technical solutions for moderately complex application development tasks.
  • Document code and associated processes by adhering to development methodologies, adding code comments and appropriate documentation to various knowledge-based system(s) to simplify code maintenance and to improve support.

Testing & Documentation

  • Create and document moderately complex test scenarios using the appropriate testing tools to validate and verify application functionality.
  • Test all changes by using the appropriate moderately complex test scenarios to ensure all delivered solutions work as expected and errors are handled in a meaningful way.
  • Author and maintain documentation by writing audience-appropriate materials to serve as technical and/or end-user references.

Implementation & Maintenance

  • Implement changes by adhering to the change management policies and procedures for any given project to communicate to all parties the nature, significance, and risk factors of the solution.
  • Monitor changes and resolve moderately complex problems by responding as they occur, by reviewing all processing and output of the newly implemented solution, and by proactively ensuring the solution works successfully to satisfy the customer requirements and to provide a smooth transition to the new solution.
  • Provide support by triaging and resolving moderately complex issues to ensure prompt, effective service.


Minimum Qualifications
  • Bachelor’s Degree in Engineering or closely related field.
  • Three years of related work experience with computer systems and applications.
  • Additional education may substitute for required experience and additional related experience may substitute for required education beyond HS Diploma/Graduation Equivalent, to the extent permitted by the JHU equivalency formula.


Preferred Qualifications
  • Knowledge in the assigned application as well as the platform on which it runs.

Technical Skills (Expected Skills - Proficiency Level)

  • Agile Methodology - Developing
  • Code Review - Developing
  • Debugging - Developing
  • JIRA - Developing
  • Microservices - Developing
  • Model View Controller - Developing
  • Product Life Cycle Management - Developing
  • Restful API - Developing
  • Secure Coding - Developing
  • Software Design Patterns - Developing
  • Software Development Life Cycle - Developing
  • Unit Testing - Developing

*The core technical skills listed are most essential; additional technical skills may be required based on specific division or department needs.


Classified Title: Developer III
Role/Level/Range: ATP/04/PD
Starting Salary Range: $62,900 - $110,100 Annually (Commensurate w/exp.)
Employee group: Full Time
Schedule: M-F, 37.5 hrs wkly
FLSA Status: Exempt
Location: Homewood Campus
Department name: ​​​​​​​Materials Science & Engineering
Personnel area: Whiting School of Engineering