Software Engineer II, Message Mailflow
RemoteSoftware Engineer$149k–$215kPosted Jul 20, 2026
Skip to main contentSoftware Engineer II, Message MailflowRemote - USAMessage Security DetectionR-101156Apply NowAbout the Role
Abnormal AI is seeking a Software Engineer to join the Message Mailflow team. The Message Mailflow team is responsible for building and maintaining stable, efficient, and hands-off systems that power the ingestion of billions of emails per day. Our systems are the backbone of Abnormal's core Inbound Email Security product—handling everything from upstream mailbox monitoring and email notifications to downstream remediation actions on malicious messages.
The Message Mailflow team develops and manages tier 0 backend services that are mission-critical to Abnormal's success, including but not limited to Subscription Manager (which mailboxes we monitor), Notification Producer (processing new email notifications from providers), and Remediation (executing actions on malicious messages). This is a backend and systems-heavy team, and the ideal candidate will have experience working with distributed systems at scale and a passion for operational excellence.
The ideal candidate has strong backend and distributed systems experience, a deep appreciation for email infrastructure, and the ability to thrive in a fast-moving 0-to-1 build environment.
What You Will Do
Design & execute software projects that are critical to Abnormal's core product, working with a team of engineers through conception, design, implementation, launch, and operation
Own and improve the stability, performance, and scalability of tier 0 backend services that process billions of emails daily
Collaborate with teams across R&D including Detection, Products, and Infrastructure to ensure Message Mailflow services meet the needs of the broader organization
Participate in oncall rotations to maintain the reliability and uptime of mission-critical systems
Drive continuous improvement by identifying opportunities to enhance system efficiency, reduce operational overhead, and increase reliability
Raise the bar of engineering excellence, actively contributing to knowledge sharing within the team and participating in professional development activities
Must Haves
BS degree in Computer Science, Applied Sciences, Information Systems or other related engineering field
3+ years of industry experience on backend software development & distributed systems, designing & building software applications
Experience with our stack: Go and/or Python
Experience working with distributed teams, proficient in asynchronous and written communication
Experience building features & components from scratch and operating them, balancing feature development work with operational tasks
Open to following pre-established guidelines, coding practices, and conventions
You’re growth-driven & looking to increase impact & responsibility over time
Nice to Have
Experience with our stack: AWS, K8, Django, Spark, Prometheus
Familiarity with AWS services and deployment practices.
Knowledge of containerization using Docker or similar technologies.
#LI-PP1Actual compensation will be determined based on several non-discriminatory factors including skills, experience, qualifications, and geographic location.In addition to base salary, this role may be eligible for bonus or incentive compensation, equity, and a comprehensive benefits package.Base salary range:$149,200—$214,500 USDAI and our hiring processAbnormal AI uses AI-assisted tools to help our recruiting team prepare for candidate interviews. These tools analyze resume content and role requirements to suggest interview questions and identify areas for the interviewer to explore. They do not make hiring decisions or screen candidates automatically. Every decision about a candidacy is made by a person.
Abnormal AI is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status or other...