Software Engineer – AI-Driven, Quantum-Safe Security

Arqit; Belfast City District; On-site; GBP 70,000 - 110,000; Full time

Job summary

Arqit in Belfast is seeking an experienced software engineer to join a fast-moving product team building scalable enterprise software and AI-enabled tooling.

You will collaborate with system architects and senior developers to refine designs, ship features quickly, monitor production, and ensure resiliency and performance. This role requires strong autonomy, excellent communication, and a genuine passion for technology in a rapidly changing environment.

Qualifications

• Experience building scalable, enterprise software and services.
• Hybrid cloud architectures and cloud IaaS/PaaS development.
• Practical experience with AI coding companions and embedding AI tooling across the SDLC.
• Proficiency in Java, Kotlin, Rust, Python or C++.
• Experience with containers, virtualization, and cross-platform development.
• Exposure to Linux or mobile platform development is advantageous.
• Strong communication skills with high autonomy in fast-moving environments.
• Strong analytical and problem-solving abilities.
• A genuine passion for technology and continuous self-development.
• Adaptability and pragmatism in a fast-moving environment.

Responsibilities

• Join a fast-moving product team where code ships to customers within weeks.
• Collaborate with system architects and senior developers to refine designs for major components.
• Apply AI tooling across the full software development lifecycle (design, coding, testing, deployment).
• Monitor production changes and resolve issues to ensure resiliency and performance.
• Respond to issues raised by internal teams or customers with urgency and clarity.
• Work within an agile framework delivering value in short, iterative cycles.

Skills

Java

Kotlin

Rust

Python

C++

Containers

Linux exposure

Cross-platform

Communication

Analytical

Tech passion

Adaptability

Job description

Arqit in Belfast is seeking an experienced software engineer to join a fast-moving product team building scalable enterprise software and AI-enabled tooling.

You will collaborate with system architects and senior developers to refine designs, ship features quickly, monitor production, and ensure resiliency and performance. This role requires strong autonomy, excellent communication, and a genuine passion for technology in a rapidly changing environment.