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Sr. Software Engineer (Python)

Belfast, Northern Ireland🌐 Remote💼 Full-time🗓 2026-09-14 → 2026-09-25

Core

Build and scale distributed systems for integrating Post Delivery Protection & Response threat defense software via API with Microsoft and Google email platforms.

Role type

Senior Software Engineer (Python)

Builds

Cloud integration services for inbound and outbound email threat defense

Domain

Cybersecurity / Email Security / Cloud Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

Python 3.10, AWS services (SQS, SNS, ECS, ECR, Lambda), NoSQL and SQL databases (DynamoDB, Postgres), Terraform, CI/CD pipelines, Docker, Git

Preferred skills

Experience with other Object-Oriented Programming languages, experience scaling data and infrastructure at large scale

Technologies

Python, AWS, DynamoDB, Postgres, Terraform, CircleCI, Docker, GitHub

Responsibilities

Improve XFI services scalability and reliability; research security vulnerabilities and implement security measures; monitor production environments; design and build reliable distributed systems handling high-volume data with low latency; ship code to production daily using CI/CD

Seniority

Senior, hands-on IC

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