Developer II (Institute for Data-Intensive Engineering and Science) Johns Hopkins University

• 4.0 Baltimore, MD Job Details Full-time $55,145
• $96,760 a year 12 hours ago Qualifications RESTful API Design (software development lifecycle) Product lifecycle management Providing code feedback Full Job Description Affiliated Office Address Baltimore, MD, United States Requisition

ID 122642

Date Created October 01, 2026 Job Family Information Systems, IT Job Subfamily Applications Development Job Function Information Technology Exempt Status Exempt Shift Type Full Time Schedule

M-F, 37.5

hrs wkly Worksite 02-

MD:

Mount Washington Campus Work Modality Hybrid:

On-site 60-89% of hours worked (

Ex:

3-4 out of 5 days/week) The Institute for Data-Intensive Engineering and Science (IDIES) is seeking an entry-level Developer II who can provide on-site operational support for the diverse and large scientific datasets hosted in the IDIES Data Center. The ideal candidate will have a good knowledge of the technologies used to analyze scientific data as well as familiarity with relational databases and how to manage day-to-day tasks for a data center, including how to use AI tools like Claude to facilitate these tasks. The Developer II participates in 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 homegrown), 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. Specific Duties & Responsibilities Analysis & Requirements Gathering Under guidance define 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 system requirements by meeting with clients and researching existing technology to understand the business requirements for new applications. Design & Development Develop detailed tasks by analyzing project scope and milestones for projects to ensure product is delivered quickly according to software lifecycle standards. Write functional/technical specifications by taking the provided system requirements, 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 solution for 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 the support. Testing & Documentation Create and document test scenarios using the appropriate testing tools to validate and verify application functionality. Test all changes by using the appropriate 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 problems by responding to problems 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 issues to ensure prompt, effective service. Other duties as assigned. In addition to the duties described above Working with SQL and relational databases. Performing database management tasks (assisted by Claude as applicable). Minimum Qualifications Bachelor's Degree. One year of related experience with computer systems and applications. Additional education may substitute for required experience and additional related experience may substitute for required education beyond a high school 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. Experience in working with scientists Experience in working with scientific datasets Must work independently with minimal supervision Must be reliable in terms of completing assigned tasks without requiring repeated reminders Must be able to learn new programming languages and technologies (including AI) quickly

Data Engineering and Cloud:

AWS (EC2, S3),

Snakemake, Docker, Singularity, Conda/Mamba, HPC/SLURM, Visualization and Reporting:

matplotlib, plotly, ggplot2,

Shiny, Dashboards, GraphPad Prism Machine Learning:

scikit-learn,

Random Forests, Feature Selection, Model Evaluation Differential Expression, Enrichment Analysis, Clustering, PCA, SciPy Data Analysis and Statistics:

Exploratory Data Analysis, Data Cleaning and Wrangling, Hypothesis Testing, Regression, Programming/Data Tools:

Python, R, SQL, Java, pandas, NumPy, Jupyter, RStudio, Git/GitHub, Linux, Excel 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 II Role/Level/Range:

ATP/03/PC

Starting Salary Range:

$55,145

• $96,760 Annually (Commensurate w/exp.

) Employee group:

Full Time Schedule:

M-F, 37.5

hrs wkly

FLSA Status:

Exempt Location:

Hybbrid/Mount Washington Campus Department name: DSAI Institute Personnel area: Whiting School of Engineering Total Rewards The referenced base salary range represents the low and high end of Johns Hopkins University's salary range for this position. Not all candidates will be eligible for the upper end of the salary range. Exact salary will ultimately depend on multiple factors, which may include the successful candidate's geographic location, skills, work experience, market conditions, education/training and other qualifications. Johns Hopkins offers a total rewards package that supports our employees' health, life, career and retirement. More information can be found here: https://hr.jhu.edu/benefits-worklife/. Education and Experience Equivalency Please refer to the job description above to see which forms of equivalency are permitted for this position. If permitted, equivalencies will follow these guidelines:

JHU Equivalency Formula:

30 undergraduate degree credits (semester hours) or 18 graduate degree credits may substitute for one year of experience. Additional related experience may substitute for required education on the same basis. For jobs where equivalency is permitted, up to two years of non-related college course work may be applied towards the total minimum education/experience required for the respective job. Applicants Completing Studies Applicants who do not meet the posted requirements but are completing their final academic semester/quarter will be considered eligible for employment and may be asked to provide additional information confirming their academic completion date. Background Checks The successful candidate(s) for this position will be subject to a pre-employment background check. Johns Hopkins is committed to hiring individuals with a justice-involved background, consistent with applicable policies and current practice. A prior criminal history does not automatically preclude candidates from employment at Johns Hopkins University. In accordance with applicable law, the university will review, on an individual basis, the date of a candidate's conviction, the nature of the conviction and how the conviction relates to an essential job-related qualification or function. Diversity and Inclusion The Johns Hopkins University values diversity, equity and inclusion and advances these through our key strategic framework, the JHU Roadmap on Diversity and Inclusion. Equal Opportunity Employer All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

EEO is the Law https:

//www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf Accommodation Information If you are interested in applying for employment with The Johns Hopkins University and require special assistance or accommodation during any part of the pre-employment process, please contact the Talent Acquisition Office at . For TTY users, call via Maryland Relay or dial 711. For more information about workplace accommodations or accessibility at Johns Hopkins University, please visit: https://accessibility.jhu.edu/. Vaccine Requirements Johns Hopkins University requires all faculty, staff, and students to receive the seasonal flu vaccine. Exceptions to the flu vaccine requirements may be provided to individuals for religious beliefs or medical reasons. Requests for an exception must be submitted to the JHU vaccination registry. The following additional provisions may apply, depending upon campus. Your recruiter will advise accordingly. The pre-employment physical for positions in clinical areas, laboratories, working with research subjects, or involving community contact requires documentation of immune status against Rubella (German measles), Rubeola (Measles), Mumps, Varicella (chickenpox), Hepatitis B and documentation of having received the Tdap (Tetanus, diphtheria, pertussis) vaccination. This may include documentation of having two (2) MMR vaccines; two (2) Varicella vaccines; or antibody status to these diseases from laboratory testing. Blood tests for immunities to these diseases are ordinarily included in the pre-employment physical exam except for those employees who provide results of blood tests or immunization documentation from their own health care providers. Any vaccinations required for these diseases will be given at no cost in our Occupational Health office.