# Senior Software Engineer — Backend
## About the Role
Aerostrat is a fast-growing B2B SaaS company building maintenance planning solutions for the aviation industry. Its core product, Aerros, helps airlines and aircraft operators plan aircraft maintenance, understand operational costs and efficiency, and make data-backed business decisions.
As a Senior Backend Software Engineer, you’ll play a critical role in expanding Aerostrat’s infrastructure and APIs to support continued customer growth. You’ll work as part of a small engineering team where you can directly influence product direction, solve complex customer problems, and regularly see your work move into production.
The team will provide onboarding to help you learn aviation maintenance planning, so prior aviation industry experience is not required.
## Key Responsibilities
Learn aviation maintenance planning through Aerostrat’s onboarding process.
Analyze complex customer problems and translate them into effective backend solutions.
Design, develop, and maintain scalable systems and well-tested features.
Design and implement reliable, high-quality, performant, and sustainable services.
Build user stories and technical designs with the business team from ambiguous requirements or customer problems.
Contribute across the development lifecycle, including design and deployments.
Work directly with customers when needed to develop integrations and solve technical problems.
Contribute to the direction and ongoing improvement of the engineering stack and product.
Build and maintain REST APIs and microservices.
Develop B2B cloud solutions using Azure or AWS.
## Required Qualifications
5+ years of professional experience with C#/.NET.
5+ years of professional experience with SQL databases.
3+ years of professional experience working with REST APIs.
3+ years of professional experience working with Azure or AWS cloud projects.
3+ years of professional experience creating technical designs for other engineers.
Significant experience building and consuming REST APIs and microservices.
Significant experience building B2B cloud solutions on Azure or AWS.
Strong problem-solving skills and ability to work through complex customer problems.
Strong written communication skills and a positive communication style.
Ability to work independently and learn and improve engineering systems.
## Preferred Qualifications
Aerospace maintenance experience or interest in the aerospace industry.
Experience building B2B SaaS applications.
## Skills & Competencies
C#/.NET
SQL and SQL databases
REST APIs
Microservices
Azure
AWS
Backend software development
Cloud application development
B2B SaaS
Scalable system design
Technical architecture and design
Software testing
Performance and reliability
Customer-focused problem solving
Written communication
Self-directed learning
Cross-functional collaboration
## Education & Experience
Education
No specific educational requirement is stated in the source description.
Experience
5+ years with C#/.NET.
5+ years with SQL databases.
3+ years working with REST APIs.
3+ years working with Azure or AWS cloud projects.
3+ years building technical designs for other engineers.
## Work Arrangement & Schedule
Job type: Full-time
Work arrangement: Fully remote
Preferred location: Within 50 miles of Seattle, Washington
Schedule: Monday–Friday, normal business hours
Hours: Flexible hours with a focus on results rather than time spent available on Slack
## Compensation & Benefits
Salary: $140,000–$200,000 per year
Benefits include
Fully remote work with flexible hours
Unlimited PTO
11 holidays per year
Multiple health insurance options
HSA option with employer contributions
401(k) with matching
Flexperks for work-from-home expenses, cell phone, and internet
Travel discounts through the corporate travel provider
Annual team retreats
## Compliance / Additional Information
Aerostrat emphasizes a lean, collaborative engineering environment where engineers work closely with customers and have opportunities to influence product direction.
Prior aviation industry experience is not required, as the company provides onboarding focused on aviation maintenance planning.