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Principal Software Engineer Security Clearance

Job in Nashua, Hillsborough County, New Hampshire, 03060, USA
Listing for: BAE Systems
Full Time position
Listed on 2026-01-01
Job specializations:
  • Software Development
    Software Engineer, DevOps
Salary/Wage Range or Industry Benchmark: 115779 - 196825 USD Yearly USD 115779.00 196825.00 YEAR
Job Description & How to Apply Below
Position: Principal Software Engineer with Security Clearance
Job Description We are seeking a highly skilled and experienced Principal Python Engineer to join the Digital Architecture Team (DAT), leading the design, development, deployment, and sustainment of mission-critical backend systems. The ideal candidate will bring deep expertise in Python microservice frameworks, Dev Sec Ops  pipelines using Git Lab, and on-premises deployment strategies, with additional experience in containerization and Kubernetes.

Key Responsibilities:

* Lead the architecture and development of scalable Python-based microservices.
* Collaborate with cross-functional teams to identify opportunities for digital transformation and develop solutions that enhance people's abilities, while ensuring repeatability, reliability, and sustainability
* Develop and maintain software libraries and frameworks that support modular software architecture and integration with existing infrastructure, with a focus on 5S principles (sort, set in order, shine, standardize, sustain)
* Troubleshoot and debug issues related to software integration and modular architecture, with a proactive approach to identifying and resolving problems
* Develop and implement automated testing and validation procedures for software integration and modular architecture, with a focus on repeatability and reliability
* Participate in code reviews and ensure adherence to coding standards and best practices, with a focus on systematic and holistic approaches to software development
* Collaborate with junior engineers to mentor and guide them in modular software architecture development and Python development, with a focus on the digital strategy and architecture tenets
* Stay up to date with industry trends and emerging technologies in software architecture and integration, with a focus on identifying opportunities for digital transformation and innovation
* Establish standards for secure coding, automated testing, monitoring, and observability in production environments. Required Education, Experience, & Skills
* Bachelor's Degree in Computer Science, Electrical Engineering, or a related field
* 4+ years of professional experience
* 4+ years of Python development
* Strong understanding of digital strategy and the fundamental components that make it up, including people, technology, and distinct properties of each component
* Strong understanding of software design patterns and principles, with experience in designing and developing modular software architectures
* Experience with automated testing and validation frameworks such as Pytest and Unittest Preferred Education, Experience, & Skills Nice to Have:
* Software engineering experience, with a strong focus on Python backend systems
* Familiarity with agile development methodologies and Git
* Experience with cloud-based platforms and services such as Kubernetes
* Experience with data analysis and visualization tools such as Pandas, Num Py, and Matplotlib
* Excellent problem-solving skills, with the ability to think proactively and develop automated, centralized, and systematic solutions
* Strong communication and collaboration skills, with the ability to work effectively with cross-functional teams
* A deep understanding of and commitment to the architecture tenets of proactive, automation, centralization, and systematic approaches to software development Culture Fit:
* A strong belief in the importance of people and technology in digital strategy
* A commitment to proactive, automated, centralized, and systematic approaches to software development
* A focus on repeatability, reliability, and sustainability in software development
* A willingness to think holistically and develop solutions that enhance people's abilities
* A passion for collaboration and a willingness to mentor and guide junior engineers
* A deep understanding of the digital strategy and architecture tenets, with a commitment to upholding them in all aspects of work Pay Information
Full-Time Salary Range: $115779 - $196825

Please note:

This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business…
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