Senior AppSec Engineer: Secure APIs & Cloud

nineDots.io; Ireland; Remote; EUR 95,000 - 130,000; Full time

Benefits offered by this job

Equity

Health cover

Learning budget

Job summary

nineDots.io is seeking a Senior Application Security Engineer to help secure a software supply chain platform across Ireland and the UK. You’ll review architecture, code and designs, and ship fixes that prevent cross‑tenant and API abuse.

You’ll work inside an engineering team, applying Python tooling and AWS knowledge while evaluating which vulnerabilities are exploitable and prioritizing fixes. Remote‑first with equity, health cover and a learning budget.

Qualifications

• Strong Python, AWS skills, and reviewing real applications are essential.
• Go, Rust or TypeScript are useful skills for this role.
• Experience shaping security in software engineering teams is valued.

Responsibilities

• Threat modelling APIs, identity flows and distributed services.
• Identify weaknesses in authorization, secrets handling and tenant isolation.
• Build Python tooling and reusable security controls.
• Prioritize fixes by impact and exploitability.

Skills

Python

AWS

Code review

Security mindset

Education

Bachelor's degree in CS or equivalent

Tools

Go

TypeScript

Rust

CI/CD

Job description

nineDots.io is seeking a Senior Application Security Engineer to help secure a software supply chain platform across Ireland and the UK. You’ll review architecture, code and designs, and ship fixes that prevent cross‑tenant and API abuse.

You’ll work inside an engineering team, applying Python tooling and AWS knowledge while evaluating which vulnerabilities are exploitable and prioritizing fixes. Remote‑first with equity, health cover and a learning budget.