The role
We engineer high-availability platforms, and we are searching for a Principal Software Engineer fluent in Docker to keep them humming. Bring 10 years to this NH Principal Software Engineer job and StartupAdvantage answers with $139,000 - $208,000 and a runway that keeps unrolling.
Key Responsibilities
- Cut Docker cold-start times so StartupAdvantage functions wake before NH users notice
- Build the zero-bureaucracy Facilitation feature that wins back the NH accounts StartupAdvantage lost
- Track and report on key performance metrics for technology services
- Trace a technology number back through Kotlin services until it finally adds up
- Build internal tooling that improves developer productivity and velocity
- Prototype proof-of-concept solutions for emerging technology requirements
What You'll Bring
- Fluency across Django and Kafka, with strong opinions on both
- Equal parts Cypress depth and Scrum curiosity
- Self-motivated and able to work independently with minimal oversight
- Working familiarity with freelance schedules and team norms at StartupAdvantage
- Proven Kafka judgment when the textbook answer doesn't fit
StartupAdvantage has become the results-oriented name technology buyers across NH bring up when someone asks who actually knows Kotlin. Our Manchester, NH team moves at a steady, sustainable pace and protects time for deep, focused Docker work.
Pay starts strong at $139,000 - $208,000, mentorship runs deep, and the road from principal to lead is paved with real benefits.
Right now we are scheduling first-round calls for Manchester, NH-based candidates.
Take the leap into a feedback-driven freelance role at StartupAdvantage and apply before the window closes.
Skills required
- Kotlin
- Go
- Cypress
- CI/CD
- Ruby on Rails
- Microservices
- Scrum
- Kafka
- Django
- Docker
- Networking
- Facilitation
- Work Ethic
Why join StartupAdvantage
- 401(k) Matching
- Generous paid time off
- Hackathons and innovation time
- Vacation Days
- Hospital indemnity insurance
- Catered Lunches
- Free laptop and tech setup
- Home Office Setup
- Free Meals
- Wellness program and challenges
- Critical illness insurance
- Flexible Work Arrangements
- Nutrition counseling
- 401(k) Plan
Next step
This Freelance role in Manchester, NH closes 2026-11-18.