Senior Software Engineer - Technical Lead - R120

About the role

At Expedition Technology (EXP), we're seeking a Senior Software Engineer who can build mission-critical software and lead the growth of our engineering team.

Responsibilities

• Design, implement, and maintain production-grade Python services and internal tools supporting mission workflows
• Lead and influence technical design with a focus on scalability, availability, durability, and maintainability
• Define and uphold software architecture, engineering standards, and best practices
• Actively mentor and nurture junior engineers through code reviews, design discussions, and hands-on technical guidance
• Build services that run reliably in cloud-based and containerized environments
• Contribute to the design and evolution of verification, validation, testing, and evaluation environments
• Collaborate across teams to establish best practices in testing, security, observability, and reliability
• Support DevSecOps efforts including containerization, deployment automation, and operational ownership
• Explore and adopt AI-assisted development workflows, including agent-based coding and specification-driven development

Requirements

• U.S. Citizenship
• Active TS/SCI security clearance with CI Polygraph
• Bachelor’s degree in Computer Science, Electrical Engineering, or a related field, or equivalent professional experience
• 8+ years of professional software engineering experience, with Python as a primary or significant language
• Proven ability to write clean, modular, testable, and maintainable code
• Broad engineering background across multiple domains, technologies, or system types
• Solid grasp of cloud computing fundamentals, including: Scalability and performance considerations, Microservices and service-oriented architectures, High availability and system durability, Serverless or managed cloud services
• Experience building or integrating systems in containerized environments, including Docker or similar technologies
• Experience with Kubernetes or other orchestration platforms is a bonus, not a requirement
• Strong DevSecOps background with experience taking software from implementation through secure deployment
• Comfortable working in Linux (Ubuntu-based) environments, including command-line operations, scripting, and basic troubleshooting
• Experience or strong interest in AI/ML, data science, modeling and simulation, or data-driven systems
• Curiosity and adaptability around emerging tools, particularly AI coding agents and LLM-assisted development workflows
• A collaborative mindset and a passion for engineering excellence

Qualifications

Preferred qualifications include:

• Experience with AI/ML, data science, modeling and simulation, or data-driven systems
• Interest or experience with AI coding agents and LLM-assisted development workflows

Skills

• Strong understanding of object-oriented design principles, design patterns, and interface-driven development
• Strong understanding of cloud computing fundamentals, including: Scalability and performance considerations, Microservices and service-oriented architectures, High availability and system durability, Serverless or managed cloud services
• Experience with DevSecOps, including containerization, deployment automation, and operational ownership
• Experience with AI/ML, data science, modeling and simulation, or data-driven systems
• Experience with AI coding agents and LLM-assisted development workflows

Benefits

Expedition Technology offers a competitive benefits package, including:

• Health insurance
• Retirement savings plan
• Flexible work schedule
• Professional development opportunities

Pay

$100,000 - $150,000 annually

Schedule

Full-time, 40 hours per week