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Fullstack Software Engineer (Email Security & Anti-Abuse)

CH - Geneva💼 Full-time🗓 2026-07-20 → 2026-09-26

Core

Build and operate multi-disciplinary systems for email delivery, spam filtering, abuse prevention, and account security using a combination of human intelligence and machine learning.

Role type

Fullstack Software Engineer (Email Security & Anti-Abuse)

Builds

Realtime or asynchronous decision systems for spam filtering, abuse blocking, and account protection; custom AI/ML products.

Domain

Cybersecurity, Email Infrastructure, Machine Learning

Deliverable

production ML models | product features | infrastructure

Required skills

Backend development (Python, PHP, Go), Frontend development (JavaScript, React, TypeScript), Data processing and storage (MySQL, MongoDB, Redis, Kafka, Elastic, Ceph, ClickHouse), System design and architecture, Autonomous project leadership, AI tools and agents

Preferred skills

Machine learning and real-time prediction systems, iOS or Android app development, Linux server management, Infrastructure as code (Puppet, Ansible), Containerization

Technologies

Python, PHP, Go, JavaScript, React, TypeScript, MySQL, MongoDB, Redis, Kafka, Elastic, Ceph, ClickHouse, Puppet, Ansible

Responsibilities

Design, build, and operate services for different domains within the MSA group; Develop special user-facing features involving frontend and backend software; Lead the whole planning and development process for systems or features; Ensure operational excellence of systems and their interactions with other systems

Seniority

Mid-to-Senior, hands-on IC with leadership potential

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