Principal Software Engineer - Los Angeles, CA or Seattle, WA

About Re:

Build Manufacturing

Re:

Build Manufacturing is a growing family of industrial and engineering businesses combining enabling technologies, operational superiority, and strategic M&A to build America’s next generation industrial company. At Re:

Build we deploy deep expertise in engineering, operations management, and technology to supercharge the performance of our member companies. We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes. Ours is a fast‑paced environment where individuals can stretch and be challenged to pursue their fullest potential.

Re:

Build was founded to pioneer a profitable model for the revitalization of US manufacturing. We’ve assembled a powerful set of complimentary capabilities and lines of business that enable us to pursue a wide range of end markets. Our acquired businesses are grounded in build‑to‑print and by‑the‑hour engineering and design services, and we’re leveraging their combined expertise to migrate to increasingly sophisticated program development and production, as well as the generation of our own products.

Our unique set of capabilities lend themselves to highly complex systems and products, and we offer customers a range of services including product and systems design, automation, fabrication, assembly, and large volume contract manufacturing. Our customers span a wide array of industries including aerospace, defense, mobility, healthcare, pharma, biotech, clean tech, chemicals, energy, lifestyle, food production, and industrial equipment.

Re:

Build Manufacturing is seeking a
Principal Software Engineer
who will set the technical vision, elevate engineering excellence, and drive the development of scalable, high‑impact software systems. You will serve as a hands‑on architect and trusted technical leader—guiding design decisions, mentoring engineers, and ensuring our solutions are robust, secure, and built for the future.

You will thrive here if you are a strategic problem solver, a strong communicator, and someone who loves solving complex business and technical challenges in a fast‑moving environment.

• Competitive base pay
• Performance‑based annual bonus
  , available to all employees
• Re:
  
  Build incentive stock awards issued annually
• Comprehensive benefits package
• High‑impact role with significant autonomy and influence
• Fast‑growing, investor‑backed multi‑site manufacturing group
• Opportunities for continuous learning, leadership, and expanded responsibility over time

What you get to do

As a Principal Software Engineer, you will play a pivotal role in shaping our technology direction and delivering high‑quality software systems that power Re:

Build’s diverse engineering and manufacturing operations.

• Lead the design and architecture of complex, scalable, cloud‑native systems
• Make strategic decisions regarding tech stack, system design, performance, and reliability
• Set and evolve the organization’s technical strategy
  , including evaluating emerging technologies and driving innovation

• Establish and uphold engineering standard processes for code quality, security, performance, and scalability
• Conduct and mentor others through rigorous code reviews
  , design sessions, and technical deep‑dives
• Author high‑quality technical documentation, design specs, and architecture diagrams

• Develop and maintain high‑quality, efficient, well‑tested code for critically important components
• Work across multiple languages and frameworks depending on project needs (primarily C#, React/JavaScript)

• Build and deploy modern applications using serverless and containerized AWS services
  , including Lambda, ECS/Fargate, Dynamo
  
  DB, S3, API Gateway, and Step Functions
• Design and deliver robust APIs (REST and Graph
  
  QL)

• Lead or contribute to efforts that incorporate AI/ML, generative AI, intelligent automation, and AI‑assisted workflows
• Experience or strong interest in tools such as OpenAI, AWS Bedrock, Lang Chain
  , or similar…