Software Engineer (Principal/Expert) - TS/SCI with Polygraph Required

Catalyst Operations & Analytics; Österreich; On-site; EUR 120,000 - 170,000; Full time

Job summary

Catalyst Operations & Analytics seeks a Principal/Expert Software Engineer to lead architecture and delivery of mission-critical software. You will mentor engineers across levels and present technical solutions to customers and senior stakeholders.

The role requires deep experience with SDLC, DevOps, and Agile practices, with strong communication and problem-solving skills to drive engineering direction across programs.

Qualifications

• Bachelor's degree and 12+ years of relevant professional software engineering experience.
• Expert-level proficiency in one or more modern programming languages (e.g., Java, Python, C/C++, JavaScript).
• Extensive experience across the full software development lifecycle (SDLC).
• Demonstrated experience leading Agile/Scrum development teams.

Responsibilities

• Provide technical leadership across design, architecture, and delivery of complex software systems.
• Mentor Senior, Mid-Level, and Junior engineers.
• Represent technical solutions to customers and senior stakeholders.
• Drive adoption of sound engineering practices across the program.

Skills

Java

Python

C/C++

JavaScript

Agile/Scrum

Education

Bachelor's degree + 12+ years experience

Job description

Position Summary

Principal/Expert Software Engineers provide technical leadership across the design, architecture, and delivery of the most complex, mission-critical software systems in support of the customer's requirements. Principal/Expert Software Engineers own major technical decisions, evaluate cross-system design trade-offs, and set engineering direction across Agile development teams. Principal/Expert Software Engineers are expected to mentor Senior, Mid-Level, and Junior engineers, represent technical solutions directly to the customer, and drive the adoption of sound engineering practices across the program.

Requirements

US Citizenship and TS/SCI with Polygraph (no exceptions)

Education/Experience Requirements:

• Bachelor's degree and 12+ years of relevant professional software engineering experience (Master's degree and 10+ years also acceptable); additional relevant experience may be considered in lieu of a degree
  

Required Skills:

• Expert-level proficiency in one or more modern programming languages (e.g., Java, Python, C/C++, JavaScript)
• Extensive experience across the full software development lifecycle (SDLC), including requirements analysis, architecture, design, coding, integration, testing, and deployment
• Demonstrated experience leading Agile/Scrum development teams
• Experience with version control and configuration management tools
• Deep experience developing on Windows and/or Linux operating systems
• Extensive experience with DevOps practices, CI/CD pipelines, and test automation
• Demonstrated ability to define software architecture and resolve complex, ambiguous technical problems
• Excellent critical thinking, technical writing, and oral communication skills, including the ability to present and defend technical solutions to customers and senior stakeholders
• Principal/Expert positions set technical direction for the program and mentor Senior, Mid-Level, and Junior engineers