Senior Full-Stack Engineer — IC Security & AWS Lead

Energy Jobline ZR; Manassas (VA); Hybrid; USD 108,000 - 195,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos is hiring a senior software engineer to design, build, and lead modern web and mobile applications for an IC customer. You will work across frontend (Next.js/React/JavaScript/CSS) and backend (Python/Django) with AWS services, Wagtail CMS, and PostgreSQL.

The role blends hands-on coding with Scrum facilitation in a hybrid environment. Active TS/SCI clearance required; you will collaborate with Product Owners and stakeholders, drive CI/CD pipelines, and ensure secure, scalable solutions

Qualifications

• US citizenship is required per contract.
• Bachelor's degree in Computer Science, Software Engineering, or related field with 8–12 years of prior relevant experience or Master's with 6–10 years of prior relevant experience.
• Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.
• 5+ years of hands-on experience designing, developing, and maintaining modern web and mobile applications.
• Strong proficiency in JavaScript, React.js, Next.js, HTML, and CSS for front-end development and Python and Django for back-end services and RESTful APIs.
• Experience with Wagtail CMS or comparable content management frameworks and PostgreSQL or similar relational databases.
• Experience developing cross-platform mobile applications using React and iOS applications using Swift, SwiftUI, UIKit, Xcode, and iOS SDKs.
• Experience developing, deploying, and maintaining applications in AWS, including familiarity with S3, ECS, RDS, CloudFront, and ALB.
• Experience with Docker, Git-based source control, GitLab, and CI/CD development and deployment practices.
• Familiarity with Kubernetes and container orchestration concepts, including deploying, managing, and scaling containerized applications in cloud environments.
• Demonstrated experience working in an Agile/Scrum environment, including facilitating Scrum ceremonies, supporting sprint execution, removing impediments, and contributing hands-on software development.
• Experience using Jira or comparable Agile project management tools to manage backlogs, user stories, defects, and sprint progress.
• Strong understanding of secure coding, automated testing, code reviews, software integration, and troubleshooting across full-stack applications.
• Excellent communication, problem-solving, and collaboration skills, with the ability to work effectively with Product Owners, developers, and customer stakeholders.

Responsibilities

• Design, develop, test, and maintain scalable, secure web and mobile applications supporting mission-critical customer requirements.
• Build responsive front-end applications using Next.js, React.js, JavaScript, and CSS, and develop back-end services and RESTful APIs using Python and Django.
• Develop and maintain content management solutions using Wagtail CMS and optimize PostgreSQL databases for performance and data integrity.
• Develop and support cross-platform mobile applications using React and iOS applications using Swift, SwiftUI, UIKit, Xcode, and Apple iOS SDKs, ensuring seamless integration with back-end services.
• Write clean, maintainable code; conduct peer reviews; troubleshoot complex issues; and implement unit, integration, and automated testing.
• Develop, deploy, and maintain secure, scalable applications within AWS; collaborate with DevSecOps to support CI/CD, Docker deployments, and monitoring.
• Facilitate Scrum ceremonies, including sprint planning, daily standups, backlog refinement, sprint reviews, and retrospectives; partner with Product Owners and stakeholders.
• Identify and remove team-level impediments, manage technical dependencies, and address risks impacting sprint execution and delivery commitments.
• Champion Agile best practices, team collaboration, accountability, and continuous improvement; contribute to software development.
• Leverage Jira for sprint/backlog management, GitLab for source control, Rocket.Chat for communication.

Skills

JavaScript

React.js

Next.js

HTML

CSS

Python

Django

RESTful APIs

AWS

Docker

Kubernetes

GitLab CI/CD

Jira

Education

Bachelor's degree in Computer Science or related field

Master's degree (optional)

Doctorate in technical domain (considered)

Tools

Wagtail CMS

PostgreSQL

Swift

Xcode

iOS SDKs

S3

ECS

RDS

CloudFront

ALB

Terraform

CloudFormation

Job description

Leidos is hiring a senior software engineer to design, build, and lead modern web and mobile applications for an IC customer. You will work across frontend (Next.js/React/JavaScript/CSS) and backend (Python/Django) with AWS services, Wagtail CMS, and PostgreSQL.

The role blends hands-on coding with Scrum facilitation in a hybrid environment. Active TS/SCI clearance required; you will collaborate with Product Owners and stakeholders, drive CI/CD pipelines, and ensure secure, scalable solutions