Senior Software Engineer - DoD Mission-Critical, TS/SCI

cFocus Software Incorporated; Ellsworth (ME); On-site; USD 140,000 - 190,000; Full time

Job summary

cFocus Software Incorporated seeks a Sr. Software Engineer to join our program supporting the United States Air Force. This onsite role is located in Ellsworth, SD, and requires a TS/SCI SSBI clearance.

You will design, develop, test, and sustain mission-critical enterprise applications, working with WebSphere and DB2 in a secure, controlled environment. Responsibilities include translating requirements into robust software designs, performing root-cause analysis, and ensuring production

Qualifications

• Active TS/SCI SSBI clearance is required.
• B.S. degree in Computer Science, IT, or a related field.
• 10+ years of software engineering experience.
• Experience supporting mission-critical enterprise applications through full lifecycle.
• Experience in secure software development, debugging, logging, vulnerability remediation, and security controls.
• Experience with RMF, A&A, continuous monitoring, and DoD cybersecurity compliance.

Responsibilities

• Analyze mission and system requirements and translate into software designs and changes.
• Design, develop, modify, and sustain application components and services per baselines.
• Evaluate modifications, identify risks, and maintain usability in evolving environments.
• Perform secure software engineering with applicable security controls and least-privilege practices.
• Maintain development and test environments with CM, patch validation, and data security.
• Develop and execute unit, integration, regression, and deployment validation tests.
• Validate post-deployment performance and implement corrective actions.
• Collaborate across WebSphere, DB2, Windows/Linux, AD, virtualization, storage, and security tooling.
• Coordinate with DBAs on schemas, queries, data integrity, and migrations.
• Provide Level III escalation support with advanced diagnostics and root-cause analysis.

Skills

TS/SCI clearance

Security engineering

Software analysis

Root cause analysis

Code-level debugging

Unit/integration testing

System architecture

Configuration management

DoD cyber compliance

Education

B.S. Computer Science or related field

Tools

WebSphere

DB2

Windows

Linux

RMF

Job description

cFocus Software Incorporated seeks a Sr. Software Engineer to join our program supporting the United States Air Force. This onsite role is located in Ellsworth, SD, and requires a TS/SCI SSBI clearance.

You will design, develop, test, and sustain mission-critical enterprise applications, working with WebSphere and DB2 in a secure, controlled environment. Responsibilities include translating requirements into robust software designs, performing root-cause analysis, and ensuring production