Senior Engineer (Python, AWS, ScaleUp) in Belfast

Senior-level security engineering role within a fast-growing technology business.

Hands-on work across cloud security, secure software delivery and AI-driven tooling.

Hybrid working model with a Belfast-based engineering team.

Strong salary, bonus, private healthcare and high-end benefits package.

Opportunity to influence security architecture and engineering standards at scale.

The Company: Ocho is partnering with a rapidly scaling global technology organisation operating at significant scale across data-driven digital platforms. Their engineering teams build high-performance systems used by millions of users, with a major focus on cloud infrastructure, automation, AI innovation and secure software delivery. This is an environment built for engineers who enjoy solving complex technical problems, influencing architecture decisions and working with modern tooling in a highly collaborative culture.

The Role: This is a senior security engineering position within a modern cloud engineering environment focused on improving security posture across software delivery, infrastructure and internal platforms. You'll operate across both hands-on engineering and security strategy, helping shape secure-by-design practices while building scalable tooling and automation around vulnerability management, monitoring and cloud security operations. The role offers genuine technical ownership alongside the opportunity to influence engineering teams across the wider business. The team is particularly interested in engineers who enjoy working close to modern cloud platforms, automation, AI-driven tooling and proactive security engineering.

Key Responsibilities:

• Design and develop internal security tooling and automation solutions.
• Drive secure-by-design engineering practices across development teams.
• Build and improve cloud security monitoring and vulnerability management processes.
• Work closely with engineering teams to remediate security risks and improve resilience.
• Monitor, triage and investigate security threats and incidents.
• Contribute to architectural decisions across security and platform engineering.
• Maintain and improve security-related data platforms and infrastructure visibility.
• Support adoption of modern security tooling, including AI-enhanced solutions.
• Mentor engineers and promote security best practices across teams.
• Collaborate with stakeholders across engineering, infrastructure and compliance.

What You'll Need:

Essential:

• Strong commercial experience within Security Engineering or Security Operations.
• Hands-on development experience using languages such as Python, Java, Go or SQL.
• Strong AWS cloud security experience (IAM, Security Hub, monitoring, logging etc.).
• Experience working within modern CI/CD and cloud-native engineering environments.
• Strong understanding of application security, threat modelling and secure development practices.
• Comfortable operating within Linux-based environments.
• Excellent communication and stakeholder engagement skills.

Nice to Have:

• Experience working with AI-focused security tooling.
• Exposure to SIEM platforms and cloud observability tooling.
• Experience mentoring or leading engineers within security-focused teams.

Why Apply?

• Excellent salary and bonus package.
• Hybrid working with strong flexibility and work/life balance.
• Private healthcare, dental and optical cover.
• Enhanced parental leave.
• High-spec equipment and modern engineering environment.
• Opportunity to work with cutting-edge cloud and AI technologies.
• Strong career progression and technical growth opportunities.
• High-trust culture with real ownership and autonomy.

For more information or a confidential chat, connect with Chanel Gillen on LinkedIn or send across your CV directly.