Lead Principal Software Engineer — Architecture & Scale

Career Launch; San Francisco (CA); On-site; USD 200,000 - 300,000; Full time

Job summary

Career Launch is seeking a Principal Software Engineer for opportunities in the San Francisco Bay Area. The role targets senior engineers who can design and deliver reliable software systems for growing tech companies.

You will set architectures, supervise cross-team programs, and drive production reliability and performance while mentoring peers and coordinating with product, data, design, and GTM teams. Strong system design, clear written communication, and the ability to steer ambiguous work

Qualifications

• A record of shipping and operating complex software in a senior engineering role.
• Strong system design, technical judgment, and written communication.
• Experience working across product and business functions in a fast-moving environment.
• Ability to lead ambiguous work from initial problem definition through production results.
• Experience coaching peers or leading technical programs without relying on formal authority.
• Authorization to work in the United States for the employer without misrepresenting work status.

Responsibilities

• Set architecture across teams and lead the hardest cross-cutting engineering programs.
• Own architecture and technical decisions for high-impact products and platform capabilities.
• Translate business and product goals into pragmatic engineering plans and milestones.
• Build, review, and improve production systems with attention to reliability, security, and performance.
• Raise engineering standards through design reviews, documentation, testing, and operational discipline.
• Mentor engineers and improve collaboration across product, data, design, and go-to-market teams.
• Use metrics and incident learning to prioritize technical investment and reduce recurring risk.

Skills

System design

Technical judgment

Written communication

Cross-functional collaboration

Leadership without authority

US work authorization

Job description

Career Launch is seeking a Principal Software Engineer for opportunities in the San Francisco Bay Area. The role targets senior engineers who can design and deliver reliable software systems for growing tech companies.

You will set architectures, supervise cross-team programs, and drive production reliability and performance while mentoring peers and coordinating with product, data, design, and GTM teams. Strong system design, clear written communication, and the ability to steer ambiguous work