Software Engineer II - Message Infrastructure
Abnormal AI
Job Overview
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Job Description
About The Role
Abnormal AI is seeking a Software Engineer II - Message Infrastructure to join the Message Infrastructure team. The Message Infra 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 Infra 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.
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 Infra 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.
Key skills/competency
- Distributed Systems
- Backend Development
- Go Programming
- Python Programming
- Operational Excellence
- Scalability
- Performance Optimization
- System Design
- Cloud Computing (AWS)
- Containerization (Docker/K8s)
How to Get Hired at Abnormal AI
- Research Abnormal AI's culture: Study their mission, values, recent news, and employee testimonials on LinkedIn and Glassdoor.
- Tailor your resume: Highlight distributed systems, Go/Python, and large-scale backend experience specifically for Abnormal AI.
- Showcase operational excellence: Emphasize experience owning system stability, performance, and on-call responsibilities in past roles.
- Prepare for technical deep-dives: Expect questions on system design, scalability challenges, and Go/Python proficiency at Abnormal AI.
- Demonstrate collaborative spirit: Be ready to discuss cross-functional teamwork and asynchronous communication skills relevant to distributed teams.
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