Senior Integration Engineer
FastnOregon, United States
Posted December 12, 2025
Full Time
About the Company
Fastn is a SaaS company that provides an embedded integration infrastructure to enable companies to build, scale, and manage their integration ecosystem effortlessly.
Job Description
Fastn is a SaaS company that provides an embedded integration infrastructure to enable companies to build, scale, and manage their integration ecosystem effortlessly. As a Senior Integration Engineer, you will play a critical role in architecting, building, and optimizing integrations between Fastn and a broad ecosystem of SaaS applications.
Requirements
- 5+ years of experience in integration engineering, API development, or automation.
- Proven track record in leading and architecting scalable API integrations.
- Strong expertise in RESTful APIs, GraphQL, Webhooks, and event-driven architectures.
- Experience designing integrations that handle millions of transactions per second/minute with low latency.
- Proficiency in backend programming languages (Java, Python, or Node.js).
- Hands-on experience with cloud platforms (AWS, GCP, or Azure) and serverless architectures.
- Strong knowledge of API security, authentication (OAuth, JWT, OpenID), and compliance (SOC 2, GDPR, etc.).
- Experience working with message queues (Kafka, RabbitMQ, etc.) and event-driven architectures.
- Previous experience leading or mentoring engineers in a high-growth startup or SaaS company.
Benefits
- Market-leading salary
- Meaningful equity
- Flexible remote work environment