Sr. Software Engineer (Cybersecurity)

Location: Belfast, Northern Ireland, United Kingdom

Company

hirify.global provides human- and agent-centric cybersecurity solutions that protect email, cloud, collaboration tools, data, and AI workflows.

What you will do

• Design distributed systems and build high-performance backend services for the Threat Response product engineering team.
• Develop and maintain large-scale production systems for enterprise and SaaS applications.
• Design scalable processing frameworks supporting parallel execution, tenant isolation, and fair resource utilization.
• Process high volumes of events, messages, or transactions across multi-tenant SaaS platforms.
• Optimize database performance, application efficiency, system throughput, and resource utilization.
• Use AI-assisted engineering tools for software design, implementation, testing, debugging, and operational support.

Requirements

• Extensive software development experience building enterprise or SaaS applications.
• Excellent programming skills in Java and/or Python, with experience designing, implementing, and maintaining large-scale production systems.
• Experience building and operating large-scale, multi-tenant SaaS platforms.
• Experience designing scalable distributed systems that process high volumes of events, messages, or transactions.
• Experience designing scalable processing frameworks that support parallel execution, tenant isolation, and fair resource utilization.
• Experience with PostgreSQL or other relational databases, including query optimization, performance tuning, and database scalability.
• Ability to effectively leverage AI-assisted engineering tools for software design, implementation, testing, debugging, and operational support.
• Strong analytical, problem-solving, communication, and collaboration skills.
• BSc degree in Computer Science, Engineering, or equivalent practical experience.

Nice to have

• Experience with AWS cloud services and modern cloud application architectures.
• Experience with messaging and streaming technologies such as Kafka, SQS, or similar platforms.
• Experience optimizing application efficiency, system throughput, and resource utilization in large-scale production environments.
• Experience integrating with Microsoft 365, Microsoft Graph, Google Workspace, or other enterprise SaaS platforms.
• Experience with modern frontend technologies such as React or TypeScript.

Culture & Benefits

• Full-time position with a flexible work environment.
• Competitive compensation and comprehensive benefits.
• Annual wellness and community outreach days.
• Career development opportunities and recognition for contributions.
• Global collaboration and networking opportunities.
• Inclusive culture welcoming applicants from all backgrounds, experiences, and perspectives, with accommodation available during the application or interview process.

Hiring process

• Submit an application with any supporting information.