Full-Stack/API Developer

DSFederal, Inc.; United States; Remote; USD 90,000 - 140,000; Full time

Job summary

DSFederal, Inc. is seeking a Full-Stack/API Developer to build and evolve NWPS features, including new hydrograph visualization options and gauge location tools. You will implement API endpoints, create UI components, and handle spatial data ingestion within an Agile team.

Collaboration with GIS specialists and hydrologists is key, with automated tests and CI/CD pipelines ensuring code quality. The role requires 3–5 years of hands-on experience in full-stack development, REST APIs, and

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline.
• 3–5 years of full-stack web and API development experience.
• Experience building REST APIs and querying relational/spatial databases.
• Experience with Git workflows and automated tests.

Responsibilities

• Develop, test, and deliver new full-stack features and RESTful API endpoints.
• Ingest, transform, and store multi-source hydrologic datasets in PostgreSQL and S3.
• Write automated unit and integration tests (Pytest, Jest, or unittest).
• Contribute to CI/CD pipelines using GitLab/GitHub workflows.
• Participate in daily stand-ups, sprint planning, and issue tracking in Jira/Redmine.
• Support community code review and automated tests for contributions.

Skills

Full-stack dev

API engineering

REST APIs

GeoJSON parsing

Web accessibility

Education

Bachelor's degree in Computer Science

Tools

Pytest

Jest

GitLab

GitHub

Jira

Redmine

Docker

AWS

Aurora

S3

Job description

The Full-Stack/API Developer is a core software engineer responsible for hands-on feature development, API endpoint implementation, UI component creation, and spatial data ingestion. Working within an integrated Agile engineering team, this role contributes directly to building next-generation features for the National Water Prediction Service (NWPS), including new hydrograph visualization options, gauge location search tools, and precipitation frequency data displays.

Collaborating with Senior Developers, GIS Specialists, and Government hydrologists, the Full-Stack/API Developer writes clean, maintainable code, implements accessible frontend components, writes automated unit tests, and moves software updates through automated VLab GitLab CI/CD pipelines.

Requirements

• Feature & Endpoint Development: Develop, test, and deliver new full-stack features, web pages, and RESTful API endpoints for NWPS modernization tasks.
• Backend Ingestion & Data Services: Write Python scripts and SQL queries to parse, transform, and store multi-source hydrologic datasets in Amazon Aurora PostgreSQL and S3.
• Automated Unit & Integration Testing: Write automated unit and integration tests (Pytest, Jest, or unittest) for all new code to guarantee compliance with the mandatory =80% statement test coverage requirement.
• GitLab/GitHub CI/CD Workflows: Utilize VLab GitLab and GitHub for daily feature branching, pull/merge requests, automated pipeline execution, and peer code reviews.
• Agile Sprint Participation: Active participation in daily Scrum stand-ups, sprint planning, story estimation, and issue tracking in Jira/VLab Redmine.
• Community Code Review Support: Assist senior engineers in running automated sandboxed tests and schema checks for public community-driven code contributions.

Experience Required

• Education: Bachelor's Degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline.
• Total Professional Experience: Minimum of 3 to 5 years of professional experience in full-stack web application development and API engineering.
• Application Engineering: Hands-on experience building full-stack web applications, consuming and creating REST APIs, and querying relational/spatial databases.
• Version Control & Test Automation: Practical experience using Git workflows (branching, pull requests) and writing automated unit tests.

Technical Skills Required

• APIs & Databases: Practical knowledge of RESTful API design, PostgreSQL / SQL, JSON/GeoJSON parsing, and relational database schema design.
• Web Accessibility: Demonstrated ability to build accessible web components adhering to Section 508 and WCAG 2.1 AA guidelines.
• Cloud & Container Fundamentals: Familiarity with AWS cloud environments (AWS Fargate, S3, Aurora), Docker containerization, and basic Infrastructure as Code concepts.
• Testing & Development Tooling: Experience with Pytest, Jest, Git repositories (VLab GitLab/GitHub), and issue tracking tools (Jira/Redmine).