Sr. Backend Developer

3/8/2026

The role involves leading projects from inception to completion, ensuring full end-to-end ownership and accountability for building and maintaining a high-performance, highly available platform. Responsibilities also include assisting in strategic planning and development of future features aligned with the product roadmap.

Working Hours

40 hours/week

Company Size

51-200 employees

Language

English

Visa Sponsorship

About The Company

IRONSCALES is the leader in AI-powered email security protecting over 17,000 global organizations from advanced phishing threats. As the pioneer of adaptive AI, we detect and remediate attacks like business email compromise (BEC), account takeovers (ATO), and zero-days that other solutions miss. By combining the power of AI and continuous human insights, we safeguard inboxes, unburden IT teams, and turn employees into a vital part of cyber defense across enterprises and managed service providers. IRONSCALES is headquartered in Atlanta, Georgia. To learn more, visit  www.ironscales.com  or follow us on X  @IRONSCALES

About the Role

About IRONSCALES:

IRONSCALES is redefining email security with an AI-powered platform built to stop phishing and advanced email threats at scale. Our cloud-native solution detects, analyzes, and remediates attacks in real time, helping organizations stay ahead of constantly evolving cyber threats without slowing down their teams. We’re a fast-growing cybersecurity company driven by innovation, ownership, and a passion for solving hard problems. Our team builds cutting-edge technology used by organizations around the world to protect what matters most.

If you love building impactful products, solving complex challenges, and working with smart, driven people in a fast-paced startup environment- IRONSCALES is the place for you. Join us and help shape the future of email security🚀

Responsibilities:

Lead projects from inception to completion, ensuring full end-to-end ownership and accountability.
Build and maintain a high-performance and highly available platform and implement new features.
Assist in the strategic planning and development of future features, ensuring alignment with the overall product roadmap and company objectives.

Requirements

A minimum of 7 years of hands-on Backend development experience, including at least 3-4 years with Python.
Proven experience in the design and implementation of robust and scalable products, demonstrating a commitment to quality.
Proficiency with both SQL and NoSQL databases, including PostgreSQL and Redis (Elasticsearch is a plus).
Extensive experience with cloud platforms, preferably AWS
Experience in cloud architecture (with various managed services like SQS, SNS, EKS, SES, S3, etc)
Experience in writing services/systems from scratch
Demonstrated ability to manage requirements from the early phases through to full implementation, and Production responsibility; taking end-to-end ownership of projects.

Key Skills

PythonDjangoFastAPISqlAlchemySQLNoSQLPostgreSQLRedisElasticsearchAWSSQSSNSEKSSESS3