Software Engineer

QualityWorks Consulting Group 

Software Engineer

Job Description

Focus: Application Support, Defect Resolution & AI Model Optimization
Employment Type: Full-Time
Location: United States – Remote
Experience Level: Mid-Level
Security Requirement: Must be a U.S. Citizen and eligible to obtain and maintain the required Public
Trust determination and DoD system access.

About the Role
We are seeking a Mid-Level Software Engineer / Application Developer to support the stability,
maintenance, security, and continuous improvement of an AI-enabled software platform built on
TypeScript, Node.js, and AWS, operating within a federal/DoD technology environment.

The primary responsibility of this role is to investigate and resolve application defects, system
issues, and technical problems identified through autonomous testing, human validation, monitoring,
or user feedback.

The engineer will also perform AI model tuning and optimization, analyzing system performance and
AI behavior and implementing controlled improvements to prompts, configurations, model interactions,
workflows, and related application components.

You may be required to work in a government-managed AWS environment, where infrastructure,
networking, and security controls are governed by the hosting organization. You’ll support and deploy
the application within those guidelines.

Key Responsibilities
● Investigate, troubleshoot, and resolve application bugs and system issues across the frontend,
API, database, and cloud services.
● Address confirmed defects identified through autonomous testing and human Test Engineer
validation.
● Perform root-cause analysis for recurring and complex technical issues.
● Develop, test, document, and deploy reliable application fixes.
● Analyze application logs, metrics, APIs, databases, integrations, and AWS infrastructure when
diagnosing issues.
● Collaborate with Test Engineers to reproduce defects and validate implemented fixes.
● Address production issues and provide technical support for application incidents.
● Support application maintenance, upgrades, dependency updates, and security-related
remediation, including resolving dependency and container image vulnerability findings.
● Participate in code reviews and follow established secure coding and development practices.
● Maintain technical documentation for application fixes, system behavior, configurations, and
integrations.
● Support controlled application releases and deployments, following documented procedures and
runbooks.
● Follow applicable government configuration-management and change-control processes.
● Protect government, sensitive, proprietary, and Controlled Unclassified Information (CUI), when
applicable, in accordance with organizational and contractual requirements.
● Follow applicable access-control, cybersecurity, data-handling, and acceptable-use requirements.

AI Model Tuning & Optimization
● Conduct scheduled reviews and tuning of AI/model performance.
● Analyze AI behavior using autonomous testing results, human validation findings, production
observations, and user feedback.
● Identify patterns of inaccurate, inconsistent, incomplete, or undesirable AI behavior.
● Adjust approved prompts, configurations, model parameters, workflows, guardrails, retrieval
settings, and integrations as appropriate.
● Establish baseline measurements before significant tuning activities.
● Validate proposed model/configuration changes in approved non-production environments before
release.
● Collaborate with Test Engineers to independently validate AI behavior following tuning.
● Document significant model, prompt, configuration, and behavioral changes.
● Maintain appropriate traceability and version history for AI-related changes.
● Evaluate tuning results against defined quality and performance criteria.
● Monitor for regressions and unintended behavior following updates.
● Ensure model tuning activities comply with applicable government security, privacy, data-handling,
and AI governance requirements.

Required Qualifications
● 3–5 years of professional software engineering or application development experience.
● 3+ years of production experience with TypeScript and Node.js, across both frontend and
backend.
● Strong experience developing and maintaining production web applications.
● Demonstrated experience troubleshooting and resolving applicat…