Senior Systems Engineer: Legacy Systems Reverse Engineering

Talentify; Carmel (IN); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health Insurance

401(k)

PTO

Paid holidays

Job summary

Theoris Services is seeking a Senior Systems Engineer to join our team in Carmel, IN. The role focuses on reverse engineering legacy systems, extracting and documenting requirements, and maintaining them in IBM DOORS as the single source of truth.

The ideal candidate has 10+ years of systems engineering experience, strong requirements engineering skills, and hands-on DOORS expertise, with MBSE capability and risk-focused test planning.

Qualifications

• 10+ years of Systems Engineering experience.
• Strong background in requirements engineering and reverse engineering from legacy code/artifacts.
• Hands-on experience with IBM DOORS or DOORS NextGen.
• Demonstrated ability to create structured requirement sets from informal or incomplete inputs.
• Experience with Verification & Validation and test planning.
• Excellent systems thinking and ability to drive clarity in ambiguous environments.

Responsibilities

• Reverse engineer legacy source code and artifacts to extract and formalize missing system requirements
• Develop and maintain comprehensive requirements documentation in IBM DOORS / DOORS NextGen
• Create end-to-end test plans and support verification & validation activities
• Perform data validation and ensure requirements traceability
• Organize and improve requirements practices, applying systems thinking to help the team adopt better processes
• Support the project with potential assignments to other related or adjacent projects as needed

Skills

Systems engineering

Requirements engineering

Reverse engineering

Systems thinking

Verification & Validation

Tools

IBM DOORS / DOORS NextGen

ArchiMate

Cameo

Rhapsody

MBSE

Job description

Theoris Services is seeking a Senior Systems Engineer to join our team in Carmel, IN. The role focuses on reverse engineering legacy systems, extracting and documenting requirements, and maintaining them in IBM DOORS as the single source of truth.

The ideal candidate has 10+ years of systems engineering experience, strong requirements engineering skills, and hands-on DOORS expertise, with MBSE capability and risk-focused test planning.