Can you give example bullet points for a mid-level software engineer?

Yes. Strong software engineer bullets start with an action verb, name the technology and end with a result such as speed, reliability, cost or user impact.

Examples (fictional, adapt to your own work):

• "Rebuilt the checkout API in Go, reducing p95 latency from 1.2 s to 300 ms during sale events."
• "Introduced automated integration tests in GitHub Actions, cutting release rollbacks from monthly to once a quarter."
• "Migrated three legacy cron jobs to AWS Lambda, removing two always-on servers."
• "Mentored two junior developers through code reviews and pair programming on the payments team."

If you do not have exact numbers, describe scale instead: number of users, requests per day, services owned or teams supported. Avoid bullets that only list duties, such as "Responsible for writing code", because every developer could write that line.