API Backend Developer
One Federal Solution
Job Description
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.
- 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.
- Job Summary: The Library Support Backend Developer (Senior / Intermediate) with an API focus is responsible for providing advanced backend software engineering support for PubAg APIs and related AI-enabled data services. This role involves developing and maintaining microservices...SuggestedFor contractorsRemote work
- Job Summary: The Library Support Backend Developer (Junior / Intermediate) is responsible for developing and maintaining backend services and APIs for the NAL Library Support System and related applications. This role involves supporting system modernization, workflow...SuggestedFor contractorsRemote work
- Job Summary: The Library Support Backend Developer (Senior / Intermediate) is responsible for providing software engineering expertise to enhance... ..., automating workflows, processing metadata, and supporting API integrations to modernize services for PubAg and related...SuggestedFor contractorsRemote workFlexible hours
- ...One Federal Solution is seeking an experienced Library Support Backend Developer to support the National Agricultural Library (NAL) Library... ...modernization, and enhancement of database-driven applications and APIs. This role also includes applying artificial intelligence...Suggested
- ...Position 3: Backend Developer We are seeking a strong Backend Developer to design, build, and scale our core data integration pipelines... ..., you will be responsible for creating high-throughput REST APIs, orchestrating automated ETL workflows, and optimizing heavy...SuggestedLocal areaRelocation
$110k - $115k
...Application Developer II ROLE We need an experienced Back End Application Developer at... ...role, you will architect and sustain the backend engine powering NDC's mission-critical systems... ...Boot microservices, enabling secure REST API communication, managing data access and...Full timeWork at officeWorldwide- Key Responsibilities Design, develop, and maintain scalable full stack web applications using... ...or BootstrapDevelop and maintain RESTful APIs and GraphQL services for internal... ...reusable frontend components and scalable backend architectures following best practicesWork...Full timeMonday to Friday
- ...Description Role Summary We are looking for a Backend Engineer to build core backend services... .... Key Responsibilities Design and develop scalable backend services using Python/... ...or similar backend frameworks Build APIs for telemetry ingestion, modelled state...
- ...related field. At least four years of professional software-development experience. Hands-on experience designing and developing backend services, APIs, or distributed applications. Developing backend software using Python and C#. Building APIs and services with...Full timeRemote work
- ...GorusuCompany: SRI Tech SolutionsJob Title: AI/ML Backend DeveloperLocation: Washington DC (Onsite)... ...will be responsible for building REST APIS, managing data pipelines, and... ...Responsibilities:Backend Development: Design, develop, and maintain REST APIs using Python to integrate...Contract work
- ...Senior Java Developer The Senior Java Developer position requires in-depth knowledge of Java and J2EE background using Spring Technologies framework, design, and architectural styles /API's (REST/RPC) and Agile methodologies for the development of application programs...
- ...API Developer LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U... ...you joining our family. *** SIMILAR CAREER TITLES Backend Developer, API Engineer, Web Services Developer, Integration...Temporary workFor contractorsImmediate startFlexible hours
$134k - $238k
...As a Software Engineer, you will be responsible for designing, developing, and implementing complex software capabilities for computer-based... ...relevant experience. Experience in designing enterprise APIs Experience in RESTful web services Experience in Microservices...Full timeContract workWork at officeRemote workFlexible hours2 days per week1 day per week- ...Job Description: Senior developer with 7-10 years of professional experience working with required technologies. Expert in Python frameworks... ...VueJS / Angular. Expert in using MySQL or MongoDB. Knowledge on API-Driven Webpages. Good to have PHP knowledge. Good to have...
$135k - $200k
...it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain... ...battlefronts of militaries across the world. Backend Software Engineers at Palantir build... ..., scalable systems and design robust APIs and primitives, please join us. \n Some...Full timeWork experience placementWork at officeRemote workWork from homeRelocation package- ...Quevera is seeking a highly skilled Back End Developer with an active TS/SCI clearance with... ..., and maintaining secure, scalable backend applications that support critical national... ...environment, you will build and enhance APIs, cloud-based services, and data-driven applications...16 hoursTemporary workRemote work
- ...Job Description Job Description Backend Software Engineer — Secure Mission Systems... .... You will take hands-on ownership of APIs, service integrations, data flows, distributed... ...Maryland. What You Will Do Design, develop, test, and integrate secure backend...Weekly payContract workRemote workWork from homeHome office1 day per week
$112.13k - $186.88k
...partnered with educators and institutions to develop learning integrity solutions that... ...functionality. The Senior Software Engineer - Backend Services will be responsible for... ...using AWS Lambda.Design / implement RESTful APIs and event-driven systems.Optimize existing...Remote workHome office$160k - $175k
...Job Title: Backend Engineer Department/Team: Engineering Reports To: Backend Engineering... ...Engineer at FlowPlay is responsible for developing, maintaining, and optimizing server-side... ...database solutions Develop and maintain APIs for communication between frontend and...Full timeWork at office2 days per week$110k - $140k
...Our client is currently seeking an Intermediate Full-Stack Developer with Java, Spring Boot and React experience. You will be part of... ...full agile application development life cycle for microservice API development using Java Spring Boot in support of a React front-end...Work at officeLocal areaRemote work$240k - $250k
...maintenance, and operation of ANSWERLAKE, a backend system that provides compliant storage... ...and Application Programming Interfaces (APIs) that support enterprise outcomes. Required... ...command line interface. Experience developing microservices using Java and Spring....16 hoursImmediate startRemote work- ...Job Description: Quevera is seeking a highly skilled Backend Software Developer with an active TS/SCI clearance with Polygraph to support mission-critical programs in Annapolis Junction, Maryland. This role offers flexibility of up to 16 hours of telework per week,...16 hoursTemporary workRemote work
$185k - $215k
...Technologies is seeking a hands-on Lead Backend Software Engineer to lead and grow a small... ...plans, reliable data models, stable API contracts, and delivered product outcomes... ...management, and third-party vendor systems Develop and maintain ETL and data migration...Remote jobFull timeTemporary work$130k - $190k
...Backend Engineer Nitra's mission is to build a more efficient healthcare system and the technology that makes it possible. Our goal... ...resolve customer-reported issues. Design database schemas and APIs for small-to-medium scoped features. Implement features following...Full timeWork at officeWork from home- ...The onshore Senior Back-End Engineer leads backend microservices architecture and build... ...while remaining hands-on in service design, API contract ownership, and CI/CD pipeline governance... ...hands-on Azure cloud experience (AZ-204 Developer or AZ-305 Solutions Architect preferred)....Full timeContract workLocal areaRemote workWork from home
- ...Job Title: Backend Software Engineer Location: Washington, D.C. Clearance Required... ...) and above. The ideal candidate will develop reliable server-side applications and services... .... Develop and maintain RESTful APIs that enable seamless communication between...
$150 per hour
...review agents for accuracy and consistency Build polished, reliable user-facing features in a Next.js/React application Design backend APIs, data models, and workflow execution paths supporting responsive frontend experiences Write high-quality code on a small team...Remote jobFull timeContract workFlexible hours- ...innovative, measurable results. Position Overview Full Stack Developer with experience building cloud-native applications using Java... ...ideal candidate designs and implements scalable, resilient backend APIs and responsive frontend applications aligned to business...Remote jobHourly payFull timeFlexible hours
- ...Description Northramp is seeking a Full Stack Developer to build, enhance, and support cloud-hosted enterprise applications... ...using Java, Spring Boot, and Spring Cloud. Build backend services, RESTful APIs, event-driven integrations, and modern front-end applications...Remote jobFull timeContract workTemporary work
$133k - $142k
...As Sr. Full Stack Developer I , you’ll support a high-visibility, enterprise AI-enabled... ...and access controls across frontend and backend services Build and enforce secure CI/CD... ...-side routing with protected routes, and API data-fetching libraries Proficiency building...Full timeWork experience placementLocal areaRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to API Backend Developer. Be the first to apply!


