Senior Software Engineer (TS/SCI with Polygraph)

Yellow Duck Technologies is seeking a cleared Senior Software Engineer to lead the design, development, testing, and deployment of complex software systems for mission-critical operations. This position applies advanced software engineering principles and SAFe Agile methodologies to deliver scalable, secure, and high-performance applications. The Senior Engineer collaborates with cross-functional teams, mentors junior developers, and ensures software solutions meet stringent technical, functional, and security requirements.

Responsibilities:

• Lead design and implementation of complex software features.
• Architect technical solutions that align with system design principles.
• Mentor and guide less experienced engineers.
• Conduct thorough code reviews ensuring quality and security standards.
• Implement and optimize DevSecOps automation.
• Design and develop scalable microservices architectures.
• Lead technical discussions and architecture decisions.
• Troubleshoot complex technical issues across the stack.
• Participate in and contribute to SAFe Program-level activities.
• Support third-party code reviews and security assessments.

Requirements:

• Must have an active TS/SCI clearance with polygraph.
• Bachelor's degree in Computer Science, Engineering, or related field. An additional 4 years of experience may substitute for a Bachelor’s degree.
• 10+ years of software development experience.
• Expert-level proficiency in multiple programming languages (Python, Java, Go, etc.).
• Deep understanding of microservices, containerization, and orchestration.
• Extensive experience with DevSecOps practices and toolchains.
• Strong knowledge of software design patterns and architectural principles.
• Experience with distributed systems and message queuing (Kafka, NATS, RabbitMQ).
• Proficiency in database technologies (PostgreSQL, Redis, Elasticsearch).
• Demonstrated ability to lead technical implementations.

Yellow Duck Technologies provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, ethnicity, religion, sex, sexual orientation, gender identity and expression, national origin, disability, genetic information, veteran status, or any other protected characteristic or class.