API Backend Developer

One Federal Solution; Calverton (MD); On-site; USD 110,000 - 140,000; Full time

Job summary

One Federal Solution is seeking an experienced API Backend Developer to support the National Agricultural Library. The role focuses on API development, maintenance, and enhancement of database-driven applications, with AI techniques to extract structured information from scientific publications.

You will design, test, and maintain scalable backend services using Python, Django, GraphQL, and REST APIs, and work on modernization efforts for legacy apps.

Qualifications

• 6+ years of experience developing enterprise applications with SQL Server, MySQL, Python, Django, GraphQL, REST APIs and Linux.
• Expert knowledge of modern web development standards with practical experience.
• Experience applying AI techniques to extract structure from scientific publications.
• Experience modernizing legacy systems and performing technology refreshes.
• Proficiency with Git and GitHub for source control and collaboration.

Responsibilities

• Provide backend support for the NAL Library Support System focused on API development and integration.
• Maintain and enhance database-driven apps and RESTful/GraphQL APIs.
• Apply AI techniques to extract structured information from diverse publications.
• Design, develop, test, and maintain scalable backend services using Python, Django, GraphQL, REST, SQL Server and MySQL.
• Collaborate on modernization efforts and migration strategies for legacy systems.
• Develop API integrations that support business processes and interoperability.

Skills

API development

Agile

Linux command line

Git/GitHub usage

AI techniques

REST APIs

Web accessibility

Section 508 testing

Cross-functional collaboration

Tools

Docker

Git

GitHub

Python

Django

GraphQL

REST APIs

SQL Server

MySQL

PostgreSQL

Linux

Job description

One Federal Solution is seeking an experienced API Backend Developer to support the National Agricultural Library (NAL) Library Support System. The successful candidate will provide backend development services with a primary focus on API development, maintenance, and enhancement of database-driven applications. This role also includes applying artificial intelligence techniques to extract structured information from diverse scientific publications, supporting modernization initiatives, and collaborating with cross-functional teams to deliver secure, scalable, and high-performing applications.

Key Responsibilities

• Provide backend development support for the NAL Library Support System with a primary focus on API development and integration
• Maintain and enhance database-driven applications and RESTful and GraphQL APIs
• Apply AI techniques to extract structured information from diverse scientific publications
• Design, develop, test, and maintain scalable backend services using Python, Django, GraphQL, REST APIs, SQL Server, MySQL, and related technologies
• Support modernization and technology refresh efforts for legacy applications and systems
• Develop and maintain API integrations that support business processes and application interoperability
• Collaborate with Systems Analysts and Project Coordinators to evaluate existing applications and define migration and modernization strategies
• Utilize Git and GitHub for source code management and collaborative software development
• Develop and support containerized applications using Docker
• Work effectively in Linux environments, including command-line utilities and system administration tasks
• Ensure applications comply with modern web development standards and best practices
• Support accessibility compliance by ensuring ICT deliverables meet Section 508 requirements and WCAG 2.x AA accessibility standards
• Provide excellent customer service while working collaboratively with technical teams and stakeholders
• Perform effectively both independently and as part of an Agile development team

Required Qualifications

• Minimum of 6 years of professional experience developing enterprise applications using SQL Server, MySQL, Python, Django, GraphQL, REST APIs, and Linux command-line environments
• Expert knowledge of modern web development standards with demonstrated practical experience
• Experience applying AI techniques to extract structured information from diverse scientific publications
• Experience modernizing and performing technology refreshes for legacy systems
• Minimum of 2 years of experience working with open-source technologies and tools
• Proficiency using version control systems, including Git and GitHub
• Experience with containerization technologies such as Docker
• Experience with relational databases, including MySQL and PostgreSQL
• Strong working knowledge of Linux operating systems, command-line tools, and utilities
• Expert knowledge of HTML, XHTML, and CSS standards with practical implementation experience
• Knowledge of U.S. Web Design Standards and the USDA Digital Strategy Playbook
• Minimum of 2 years of practical experience performing Section 508 conformance testing and remediation of Information and Communication Technology (ICT) deliverables
• Practical experience ensuring ICT deliverables comply with WCAG 2.x AA accessibility standards or higher
• Ability to collaborate effectively with Systems Analysts, Project Coordinators, and technical teams to evaluate and define application migration paths
• Ability to work independently and collaboratively in a team environment
• Excellent communication and customer service skills

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.