Senior Software Engineer – Subject Matter Expert, Application Development

Cyber Security Innovations; Hyattsville (MD); On-site; USD 120,000 - 170,000; Full time

Job summary

CSI is seeking a Senior Software Engineer to serve as a full-stack development SME on a federal client's AI Support Services program. This role designs, builds, and sustains production-grade applications using PERN and Infrastructure-as-Code, while applying Agile/Scrum practices and supporting the software development lifecycle end-to-end.

You'll lead with strong data modeling, implement CI/CD pipelines, and collaborate across teams to deliver scalable, secure software solutions.

Qualifications

• 5–10 years of software engineering experience with full-stack development.
• Hands-on experience with multiple development frameworks and software architecture.
• In-depth knowledge of relational databases.
• Proficiency in PERN stack and Terraform.
• Experience managing CI/CD pipelines and Git-based code management.
• Experience integrating observability tools into engineering workflows.
• Strong Scrum/Agile experience.

Responsibilities

• Provide extensive software development, scripting, and project-level technical leadership.
• Apply Scrum/Agile development methodologies throughout the delivery lifecycle.
• Design and implement applications using full-stack approaches such as PERN (PostgreSQL, Express.js, React, Node.js).
• Use Infrastructure-as-Code tools (e.g., Terraform) to manage environments.
• Manage CI/CD pipelines and Git-based code management.
• Integrate observability tooling into software engineering efforts.
• Direct system installations and upgrades.
• Develop software solutions by studying information needs, conferring with users, mapping systems flow/data usage/work processes, and investigating problem areas.
• Determine system specifications and requirements; improve system performance through systems analysis and recommend policy/procedure changes.
• Apply strong analytical and problem-solving skills, with in-depth knowledge of relational databases.
• Report on development and service issues by collecting, analyzing, and summarizing relevant data.

Skills

Full-stack development

PERN stack

Terraform

CI/CD pipelines

Observability tooling

Scrum/Agile

Relational databases

Git workflows

Leadership

Education

Bachelor's or Master's in CS/AI/ML

Tools

Terraform

Job description

CSI is seeking a Senior Software Engineer to serve as a full-stack development SME on a federal client's AI Support Services program. This role designs, builds, and sustains production-grade applications using modern full-stack architectures (PERN) and Infrastructure-as-Code, while applying Agile/Scrum practices and supporting the software development lifecycle end-to-end.

Key Responsibilities

• Provide extensive software development, scripting, and project-level technical leadership.
• Apply Scrum/Agile development methodologies throughout the delivery lifecycle.
• Design and implement applications using full-stack approaches such as PERN (PostgreSQL, Express.js, React, Node.js).
• Use Infrastructure-as-Code tools (e.g., Terraform) to manage environments.
• Manage CI/CD pipelines and Git-based code management.
• Integrate observability tooling into software engineering efforts.
• Direct system installations and upgrades.
• Develop software solutions by studying information needs, conferring with users, mapping systems flow/data usage/work processes, and investigating problem areas.
• Determine system specifications and requirements; improve system performance through systems analysis and recommend policy/procedure changes.
• Apply strong analytical and problem-solving skills, with in-depth knowledge of relational databases.
• Report on development and service issues by collecting, analyzing, and summarizing relevant data.

Required Qualifications

• 5–10 years of software engineering experience, including full-stack development.
• Hands-on experience with multiple development frameworks and software architecture.
• In-depth knowledge of relational databases.
• Proficiency in PERN stack (PostgreSQL, Express.js, React, Node.js) and Terraform.
• Expertise managing CI/CD pipelines and Git-based code management.
• Experience integrating observability tools into engineering workflows.
• Strong Scrum/Agile experience.

Education

Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field.

Clearance/Suitability

Must be a U.S. citizen and able to obtain a favorably adjudicated Public Trust suitability determination.

Cyber Security Innovations (CSI) is an equal opportunity employer committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. As a veteran-friendly employer, we encourage military veterans to apply.

This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. CSI makes hiring decisions based solely on qualifications, merit, and business needs at the time.

CSI participates in the E-Verify Employment Verification Program.