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Applications Developer II

Solutions LLC

Arlington, VA • $75,000 to $94,000 / yr • 9/23/2026

Job Description

Job Description
Title: Applications Developer II

Description:
Solutions³ LLC is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize the severity of breaches, develop mitigation plans, and assist with the restoration of services. Solutions³ LLC is seeking an Applications Developer to support this critical customer mission.

Eligibility:
  • Must be a US Citizen
  • Must have an activeSECRET clearance, with the ability to get TS/SCI
  • Must be able to obtainDHS Suitabilityprior to starting employment
  • 2+ years of experience in applications development
Responsibilities Include:
  • Designing, troubleshooting, and implementing software code for end-to-end software development and service integrations
  • Designs, develops, enhances, debugs, integrates, and implements software stacks for on premise and cloud-based tools and services
  • Troubleshoots production problems related to software applications and pipeline workflows
  • Researches, tests, builds, and coordinates the integration of new products based on user and mission requirements
  • Initiates action for evaluation and recommendation of application software packages, application integration, and testing tools
  • Resolves problems with software and responds to suggestions for improvements and enhancements
  • Design, develop, integrate, and interface with web application RESTful APIs
  • Implements recommendations for improving documentation and development process standards
  • Ensures quality control of all developed and modified prototype software
  • Design, develop, integrate, and interface with web application RESTful APIs
Required Skills:
  • Knowledge of secure software development lifecycle and code versioning and maintenance
  • Experience with assessing and integrating commercial off the shelf (COTS) products
  • Knowledge and familiarity to work with the installation, demonstration, test, validation and evaluation of new and existing software, tools, methods, and software measurement technologies
  • Operational experience with Python
  • Experience working with AWS resources such as S3, SQS, Lambda, Glue, and Route 53
  • Knowledge of software application development and RESTful architecture
  • Knowledge of data transformation and manipulation via code
  • Experience working and developing in/with containerization software including Kubernetes and Docker
  • Must have strong communication skills and have experience interacting with customers directly in a project environment or technical demonstration
  • Must be able to work collaboratively across remote and physical locations
Desired Skills:
  • Experience with two or more of the following: JSON, Data Analytics, MongoDB, Elastic Search, Databricks, Postgress, Ansible, Vue.js, React, HTML, Podman, Process Automation, UI Development, CI/CD knowledge
  • Familiarity with data transformation (ETL)
Desired Certifications: CSSLP, Sec+
Required Education: Bachelor of Science in Computer Science, Computer Engineering, Computer Information Systems, Computer Systems Engineering or related degree; or High School diploma and 4-6+ years of directly relevant experience

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