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Software Engineer II - Inline Mailflow

13 minutes ago
United States
Full-time
Mid Level
Backend Engineer
Software Development
Apache Spark AWS Django DNS Docker Go Kubernetes Prometheus Python
Apply Now
Abnormal AI

Abnormal AI

Abnormal AI provides advanced email security solutions designed to block malicious email attacks, including credential phishing, business email compromise, and account takeover.

Internet Software & Services
Founded 2018
View All Jobs 80

Description

  • Design and implement core SMTP relay harness components, including MTA infrastructure, scalability, IP management, encryption, and DMARC support.
  • Build the production relay with existing infrastructure engineers and grow into full ownership of defined services as the product matures.
  • Collaborate with product managers and Solutions Architects to translate customer needs into reliable relay configurations for inbound and outbound use cases.
  • Own and operate tier-0 mail flow services that process high volumes of enterprise email at production SLA.
  • Participate in on-call rotations and drive continuous reliability improvements for mail flow services.
  • Contribute to technical design discussions for integrating the relay with existing inline products and shaping the broader Mail Flow platform.
  • Create and maintain knowledge-sharing materials, runbooks, and engineering documentation.
  • Support engineering excellence and team development within a fast-moving 0-to-1 environment.

Requirements

  • BS degree in Computer Science, Applied Sciences, Information Systems, or a related engineering field.
  • 3+ years of backend software development experience with distributed systems and production services.
  • Hands-on experience with Go and/or Python.
  • Experience building features and components from scratch and owning them in production.
  • Comfort working in ambiguous, 0-to-1 projects and helping shape requirements with product and engineering stakeholders.
  • Experience working with distributed teams and strong asynchronous, written communication skills.
  • Solid understanding of email protocols and infrastructure, including SMTP, MTA architecture, DNS, SPF, DKIM, and DMARC (preferred).
  • Experience with AWS, Kubernetes, Django, Spark, and Prometheus (preferred).
  • Familiarity with email security products or SEGs such as Proofpoint, Mimecast, or Microsoft Defender (preferred).
  • Experience with email deliverability concepts such as IP reputation, bulk sending infrastructure, bounce handling, or feedback loops (preferred).
  • Familiarity with Docker or similar containerization technologies (preferred).

Benefits

  • Base salary range of $149,200 to $214,500 USD.
  • Eligibility for bonus or incentive compensation.
  • Eligibility for equity.
  • Comprehensive benefits package.

Interested in this position?

Apply directly on the company website

Apply Now

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