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Senior Integration Engineer @Fastn

[Hiring] Senior Integration Engineer @Fastn

Mar 20, 2025 - Fastn is hiring a remote Senior Integration Engineer. 💸 Salary: market-leading salary and equity. 📍Location: USA.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more.

Role Description

As a Senior / Lead Integration Engineer, you will play a critical role in architecting, building, and optimizing integrations between Fastn and a broad ecosystem of SaaS applications. You will lead integration initiatives, mentor engineers, and work closely with product and engineering leadership to drive seamless, scalable, and high-performance integrations.

  • Technical Leadership: Lead the architecture, design, and development of integrations, ensuring they are scalable, high-performance, and secure.
  • API Engineering: Design and implement robust RESTful, GraphQL, and Webhook-based APIs to enable seamless data flow.
  • Scalability & Performance: Architect integrations to handle millions of transactions per second/minute with sub-millisecond response times.
  • Automation & AI-Driven Integrations: Utilize AI/ML-based automation and data mapping to enhance connectivity and reduce manual effort.
  • Security & Compliance: Implement best practices for OAuth, API authentication, data privacy, and regulatory compliance (SOC 2, GDPR, etc.).
  • Collaboration: Partner with engineering, product, and customer success teams to ensure integrations align with business and technical goals.
  • Mentorship & Team Growth: Mentor junior engineers, conduct code reviews, and provide technical guidance to elevate the overall integration team.
  • Monitoring & Reliability: Establish observability, error handling, and performance monitoring to ensure integration reliability.

Qualifications

  • 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.

Requirements

  • Experience with iPaaS platforms like Mulesoft, Workato, or Tray.io.
  • Familiarity with AI/ML-driven automation in integrations.
  • Hands-on experience with developer tooling, B2B SaaS integrations, or API marketplaces.

Benefits

  • Shape the Future of SaaS Connectivity: Be a key player in defining how SaaS companies scale their integration ecosystems.
  • Work on Cutting-Edge AI & API Technologies: Solve complex integration challenges with AI-driven automation.
  • High-Impact, Leadership Role: Lead integration strategy and mentor a growing team in a fast-paced, high-growth startup.
  • Strong Engineering Culture: Collaborate with top-tier engineers solving large-scale connectivity challenges.
  • Competitive Compensation: Market-leading salary, meaningful equity, and a flexible remote work environment.

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📍 Be aware of the location restriction for this remote position: USA
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Senior Integration Engineer @Fastn
Software Development
Salary 💸 market-leading salary and equity
Remote Location
USA
Job Type full-time
Posted Mar 20, 2025
Apply for this position Unlock 54,841 Remote Jobs
📍 Be aware of the location restriction for this remote position: USA
Beware of scams! When applying for jobs, you should NEVER have to pay anything. Learn more.
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