Principal Software Engineer Salaries in Horsham, PA

3+ years developing LLM-powered applications in production, including prompt design, RAG/vector search, evaluation frameworks, and performance optimization.

$144,200 - $288,400 a year

Bachelor's degree or higher (in Engineering, Computer Science, Math, Physics, or related field) or equivalent related work experience.

$128,328 - $218,182 a year

Strong technical leadership with the ability to engage both technical and non-technical audiences and produce clear technical documentation and diagrams.

$150,000 - $170,000 a year

Minimum of 8 years of professional frontend engineering experience 3+ years operating in a Principal, Staff, or Lead Engineer capacity with direct reports.

Embedded Linux multi-process design, multi-thread design. Work with validation and integration engineers optical, hardware and test engineering teams to…

$96,888 - $188,892 a year

Strong communication skills—you can explain technical concepts clearly to both technical and non‑technical audiences. Salary Range: $115,000-$123,687.

$115,000 - $123,687 a year