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Founding Principal Software Engineer Jobs in California

Alphatec Spine

Principal Software Engineer

Carlsbad, CA

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

Namely

Principal Software Engineer

Mountain View, CA · On-site

$158K - $211K/yr

Principal Software Engineer About the Team: This role is for the Cloud Engineering team within Cornerstone. The team is responsible for creating and managing Cornerstone's cloud infrastructure and ...

Northrop Grumman

Principal Software Engineer

Los Angeles, CA · On-site

$145K - $195K/yr

As a Principal Software Engineer, you will: Design, develop, document, test, and debug applications software and systems that contain logical and mathematical solutions. Develop software utilizing ...

Alphatec Spine

Principal Software Engineer

Carlsbad, CA · On-site

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

ATEC Spine

Principal Software Engineer

Carlsbad, CA · On-site

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

New

Internetwork Expert

Principal Software Engineer

Carlsbad, CA · On-site

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

Alphatec Spine

Principal Software Engineer

Carlsbad, CA · On-site

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

Alphatec Spine

Principal Software Engineer

Carlsbad, CA · On-site

$140K - $187K/yr

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering ...

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Founding Principal Software Engineer information

What is a founding principal software engineer?

A Founding Principal Software Engineer is a highly experienced software engineer who plays a key role in establishing the technical direction of a startup or new company. As both a founding team member and a technical leader, this person is responsible for designing core systems, setting engineering standards, and mentoring other engineers. They often collaborate closely with company founders to align technology decisions with business goals. Their influence shapes the product architecture and the company's long-term technical vision.

How does a founding principal software engineer typically influence the technical direction and culture of an early-stage startup?

As a Founding Principal Software Engineer, you'll play a critical role in shaping both the technology stack and engineering culture from the ground up. You’ll often be responsible for making key architectural decisions, setting coding standards, and establishing best practices that will guide the team as it grows. Collaboration is essential, as you'll work closely with founders, product managers, and early hires to align technical solutions with business goals. This role offers significant opportunities for leadership and impact, and your early contributions can pave the way for future career advancement as the company scales.

What are the key skills and qualifications needed to thrive as a founding principal software engineer, and why are they important?

To thrive as a Founding Principal Software Engineer, you need deep expertise in software architecture, full-stack development, and leadership, often supported by a computer science degree and extensive industry experience. Mastery of programming languages (such as Python, Java, or JavaScript), cloud platforms (AWS, Azure, or GCP), and agile development tools is typical, along with experience in designing scalable systems. Exceptional problem-solving, strategic thinking, and team mentorship skills help you drive technical vision and foster innovation. These abilities are crucial for building robust products, guiding engineering teams, and shaping a startup’s long-term technical direction.

Principal Software Engineer

Carlsbad, CA

Alphatec Spine
Medical Equipment and Supplies Manufacturing • 501 - 1,000 employees
Learn more about Alphatec Spineexternal

$140K - $187K/yr

Full-time

Posted 10 days ago

Job description

The Principal Software Engineer is a senior individual contributor responsible for defining the technical direction of the software platform and solving the organization's most complex engineering challenges. This role provides technical leadership across multiple product areas, influences architecture and engineering practices, and partners with cross-functional teams to deliver scalable, reliable, and clinically meaningful software solutions. The Principal Software Engineer serves as a trusted technical advisor, mentors engineers, and helps shape the long-term evolution of the software organization.

Essential Duties and Responsibilities
  • Define and drive the long-term software architecture and technical roadmap across multiple product releases.
  • Lead the design, implementation, and delivery of complex software systems and critical technical initiatives.
  • Serve as the technical authority for key platform technologies and provide guidance on architecture, algorithms, performance, scalability, and system integration.
  • Solve the organization's most challenging technical problems through hands-on engineering, system design, and root cause analysis.
  • Establish and promote software engineering best practices, including software architecture, design patterns, code quality, testing, automation, and CI/CD.
  • Mentor and coach software engineers through technical guidance, design reviews, code reviews, and knowledge sharing.
  • Drive technical alignment across Software, Systems Engineering, Electrical Engineering, Mechanical Engineering, Test Engineering, Clinical, Quality, Regulatory, and Product Management.
  • Translate clinical workflows, customer feedback, and business needs into scalable technical solutions.
  • Lead technical planning and influence engineering decisions that improve product quality, development efficiency, and long-term maintainability.
  • Identify and drive platform investments, reusable frameworks, and engineering tools that improve productivity across teams.
  • Evaluate emerging technologies and recommend innovations that support future product capabilities.
  • Support product development through participation in system integration, surgeon labs, field observations, and clinical evaluations.
Expected Impact
  • Defines the technical direction for major software platforms and future product generations.
  • Influences engineering decisions across multiple teams and organizations.
  • Raises the technical capability of the engineering organization through mentorship and technical leadership.
  • Delivers scalable, maintainable, and high-quality software that improves patient outcomes and customer experience.
  • Anticipates future technical challenges and proactively develops solutions before they become business constraints.
  • Represents software engineering in cross-functional planning, technical reviews, and executive discussions.

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