Application Software Developers/Engineer

One Federal Solution; Beltsville (MD); On-site; USD 100,000 - 140,000; Full time

Job summary

One Federal Solution seeks Application Software Developers/Engineers at senior, intermediate, and junior levels to support USDA NAL data applications. The role covers O&M, microservices, and API development in a Linux/open-source stack. You will work with GIS data, PostGIS, and geospatial tooling in a collaborative federal environment.

The successful candidate will design and implement scalable services, contribute to documentation, and ensure accessibility standards across the suite.

Qualifications

• Bachelor's degree in a technical field or equivalent experience.
• 5+ years of professional experience developing customized applications.
• Experience with XML transforms and XML Schema.
• Experience with JavaScript frameworks (Angular preferred).
• Knowledge of RESTful API design and implementation.
• Experience with PostgreSQL and GIS tools (PostGIS).
• Linux command-line proficiency and exposure to open-source software.
• Experience with microservices, containerization, and CI/CD.

Responsibilities

• Provide O&M support for NAL scientific data applications.
• Design, develop, and maintain microservices for data ingest and egress.
• Develop API specifications, technical diagrams, and data models.
• Support testing, deployment, and production releases.
• Configure SaaS environments and perform data migrations.
• Develop dashboards and analytics for repository usage.
• Collaborate with stakeholders to deliver high-quality software solutions.
• Ensure accessibility compliance including Section 508 and WCAG 2.x AA.

Skills

RESTful API design

XML transforms

JavaScript (Angular)

JSON

HTML5

PostgreSQL

PostGIS

Linux command-line

Python

Geospatial/GIS

Agile/Sprint planning

Education

Bachelor's degree in Computer Science, Information Systems, Engineering, or a related technical discipline

Tools

Docker

Kubernetes

Git/GitHub

Angular

Drupal

PostGIS

OpenLayers 3

Linux

USWDS

WCAG testing tools

Groovy

Python

Job description

We are seeking motivatedApplication Software Developers/Engineersat theSenior, Intermediate, and Juniorlevels to support theUSDA National Agricultural Library (NAL)scientific research data applications. This position provides Operations and Maintenance (O&M) support and application development for scientific data platforms includingGeoData(open-source software),Ag Data Commons(SaaS platform with local data harvests), and related scientific research data products.

The ideal candidate will have experience developing modern web applications, designing microservices, supporting scientific data repositories, and working within Linux-based environments using open-source technologies.

Task and Duties:

• Provide Operations and Maintenance (O&M) support for NAL scientific research data applications.
• Design, develop, and maintain microservices supporting scientific data ingest, processing, and data egress.
• Develop and maintain system architecture documentation, API specifications, technical diagrams, and data models.
• Support application enhancements, software updates, testing, troubleshooting, deployment, and production releases.
• Configure and maintain SaaS application environments, including application configuration updates and data migration activities.
• Develop repository reporting dashboards and analytics for scientific repository usage and statistics.
• Design and implement RESTful APIs supporting internal and external integrations.
• Develop and execute testing protocols, quality assurance (QA) processes, automated testing, and UI testing.
• Support ETL processes and data migration activities for application modernization efforts.
• Ensure applications comply with federal accessibility standards, including Section 508 and WCAG 2.x AA requirements.
• Troubleshoot production issues and provide technical support throughout the software development lifecycle.
• Participate in Agile development activities including sprint planning, code reviews, and technical documentation.
• Collaborate with federal stakeholders, developers, data managers, and system administrators to deliver high-quality software solutions.

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related technical discipline (or equivalent experience).
• Minimum5 yearsof professional experience developing customized applications.
• Demonstrated experience with:
  • XML transforms and XML Schema
  • JavaScript frameworks (Angular preferred)
  • JSON
  • HTML5
  • OpenLayers 3
  • Groovy
  • PostgreSQL
  • PostGIS
  • Linux command-line tools
  • Drupal
  • Python or other scripting languages
  • RESTful API design and implementation
• Minimum1 yearof experience working with open-source software and tools.
• Experience designing and implementing microservices-based architectures.
• Familiarity with containerization technologies (Docker, Kubernetes, or similar).
• Experience developing metadata-driven microservices supporting scientific data ingest and egress.
• Experience with ETL processes, data migration tools, and application configuration updates.
• Experience with scientific metadata creation, curation, and repository management tools.
• Experience deploying and maintaining web applications in production environments.
• Experience working with geographic information systems (GIS) and geospatial data applications.
• Strong experience with relational databases including PostgreSQL and MySQL.
• Experience using Git/GitHub version control.
• Strong Linux administration and command-line proficiency.
• Expert knowledge of HTML, XHTML, CSS, and responsive web development.
• Knowledge of the U.S. Web Design System (USWDS) and USDA Digital Strategy Playbook.
• Minimum2 yearsof practical experience performing Section 508 testing, remediation, and accessibility compliance.
• Practical experience ensuring applications meetWCAG 2.x AAaccessibility requirements.
• Excellent communication, collaboration, analytical, and customer service skills.
• Ability to work independently and within cross-functional teams.

About One Federal Solution:
One Federal Solution (OFS) is an innovative Professional Services provider with over 20 years of experience supporting Defense and Civilian agencies. OFS specializes in Business Intelligence, Acquisition and Procurement, and other Professional Services. We are pioneers, builders, thought leaders, and pride ourselves in thinking outside the box to co-create with our customers, helping them achieve excellent enterprise-wide outcomes. As a certified Service-Disabled Veteran-Owned Small Business (SDVOSB), OFS is committed to providing people who deliver high performance and excellence to our government partners.