Position Title: Senior Software Engineer (Subject Matter Expert Software Developer, Application)

Location: Remote (U.S.)

Client: Federal Government Programs

Employment Type: Full-Time | Contract

Work Authorization: U.S. Citizenship required. Candidates must be eligible to obtain and maintain a favorably adjudicated Federal Public Trust suitability determination.

How to Apply

Email your resume: [email protected]

Apply online through the WINTrio Careers Portal:

Job Posting: [Insert WINTrio Careers URL]

Job Summary

WINTrio LLC is seeking an experienced Senior Software Engineer to design, develop, integrate, deploy, and sustain full-stack software and AI-enabled applications supporting mission-critical Federal programs.

This position will support development of production-quality applications across front-end, middleware, back-end, database, cloud, and infrastructure layers. The successful candidate will build scalable applications using modern software frameworks, support AI application integration, manage CI/CD and Infrastructure as Code, and improve application performance, reliability, observability, and maintainability.

The ideal candidate will possess extensive experience in full-stack software engineering, software architecture, relational databases, Agile development, cloud computing, DevOps, and modern application frameworks such as the PERN stack.

Job Responsibilities

• Design, develop, test, deploy, maintain, and improve enterprise software applications.
• Develop full-stack solutions across front-end, middleware, APIs, back-end services, and relational databases.
• Develop applications using technologies such as PostgreSQL, Express.js, React.js, and Node.js.
• Build responsive, human-centered front-end solutions using HTML, CSS, JavaScript, and modern JavaScript frameworks.
• Develop scalable APIs, microservices, integration services, and application interfaces.
• Support integration of generative AI, RAG, predictive analytics, document processing, and other AI services into enterprise applications.
• Analyze user requirements, information needs, system flows, data usage, and business processes.
• Determine system specifications, architecture requirements, interfaces, and technical implementation approaches.
• Develop applications using multiple frameworks and modern software engineering tools.
• Design and optimize relational database structures and application data access patterns.
• Implement infrastructure using Terraform and other Infrastructure as Code technologies.
• Develop and maintain CI/CD pipelines supporting automated application build, testing, deployment, and release.
• Manage Git-based source code, branching, versioning, and collaborative development workflows.
• Integrate observability, monitoring, logging, and application performance tools into software solutions.
• Perform application testing, debugging, performance analysis, and root cause troubleshooting.
• Conduct systems analysis and recommend technical, architectural, process, or performance improvements.
• Direct or support system installation, upgrades, releases, and production deployments.
• Collect, analyze, and summarize development, performance, and service issues.
• Participate in Scrum and Agile ceremonies, sprint delivery, demonstrations, and iterative development.
• Support secure software development, role-based access control, data management, and ATO requirements.
• Develop accessible user interfaces and ensure applicable ICT solutions support Section 508 compliance.

Required Qualifications

• Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Machine Learning, Software Engineering, or a related field.
• Five (5) to ten (10) years of relevant software development or software engineering experience.
• Extensive experience in enterprise software development and scripting.
• Experience working within Scrum or Agile software development environments.
• In-depth knowledge of relational databases.
• Hands-on experience developing applications using multiple frameworks.
• Strong proficiency with software engineering tools and software architecture.
• Strong full-stack development experience.
• Experience with PERN or comparable modern full-stack technologies, including PostgreSQL, Express.js, React.js, and Node.js.
• Experience with Terraform or comparable Infrastructure as Code technologies.
• Expertise managing CI/CD pipelines.
• Strong experience with Git-based source code management.
• Experience integrating observability tooling into software engineering environments.
• Experience supporting software installation, upgrades, and production releases.
• Strong understanding of the Software Development Life Cycle.
• Excellent analytical, technical troubleshooting, and problem-solving skills.
• U.S. Citizenship required.
• Ability to obtain and maintain favorable Federal Public Trust suitability.

Technical Areas

Full-Stack Development

• Front-End Development
• Back-End Development
• Middleware
• REST APIs
• Microservices
• Enterprise Application Development

PERN Stack

• PostgreSQL
• Express.js
• React.js
• Node.js

Front-End Engineering

• HTML
• CSS
• JavaScript
• React.js
• UI/UX
• Prototyping
• Section 508 Accessibility

Software Architecture

• Application Architecture
• Software Design
• System Integration
• Relational Databases
• Cloud-Native Applications
• Distributed Systems

DevOps & Automation

• Terraform
• Infrastructure as Code
• CI/CD
• Git
• Automated Testing
• Deployment Automation

Observability & Performance

• Application Monitoring
• Logging
• Performance Engineering
• Debugging
• Dev Tools
• Page Performance

Tools & Platforms

Programming & Frameworks

• JavaScript
• React.js
• Node.js
• Express.js
• HTML
• CSS

Databases

• PostgreSQL
• Relational Databases

DevOps

• Terraform
• Git
• CI/CD Pipelines
• Infrastructure as Code

Cloud & AI Environments

• Microsoft Azure
• AWS
• Google Cloud Platform
• Microsoft 365
• ServiceNow

Engineering

• REST APIs
• Observability Tools
• Testing & Debugging Tools
• Browser Development Tools

Preferred Qualifications

• Experience supporting Federal software development or digital modernization programs.
• Experience developing production applications integrating Generative AI, RAG, ML, or cloud AI services.
• Experience building cloud-native applications across Azure, AWS, or GCP.
• Experience with human-centered design and modern UI/UX development.
• Experience developing Section 508-compliant applications.
• Experience supporting Federal ATO, access control, security, and data management requirements.
• Experience supporting enterprise applications through development, deployment, operations, and sustainment.

Work Environment

• Full-time position.
• The primary place of performance is virtual.
• Standard operating hours are generally Monday through Friday, 8:00 AM to 4:30 PM Eastern Time.
• Occasional work outside normal business hours may be required based on mission needs.
• All work must be performed within the United States.

WINTrio Benefits

• Healthcare (Medical, Dental, and Vision)
• Flexible Spending Account (FSA) and Health Savings Account (HSA)
• 401(k) and Retirement Savings Plan
• Annual Bonus and Profit Sharing Opportunities
• Paid Time Off (PTO) and Vacation
• Employee Assistance Program (EAP)
• Life, Personal, and Voluntary Disability Insurance

Growth Opportunities

This position provides opportunities to work on full-stack development, cloud-native engineering, artificial intelligence, Generative AI, DevSecOps, software architecture, enterprise modernization, and mission-critical Federal technology programs. WINTrio is an employee-driven company where innovation, technical excellence, collaboration, and professional growth are fundamental to our success.