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Job Details


Belfast, Northern Ireland


Security Engineer

  • How you'll support our mission! 

    ESO’s teams are growing, and our software is in demand globally by firefighters, paramedics, hospitals and governments. To meet this demand, we are building an industry-leading cyber security team in Belfast to protect our customers and data from a variety of fast-moving and constantly evolving threats.

    We are looking for security engineers to join our Belfast and US teams. You will work alongside our local fire, hospital and EMS Engineering teams, who need assistance to secure our mission-critical applications. These applications are used to help our customers go about their daily job of protecting their communities and saving lives.

    You will be helping to design and implement secure systems, using techniques such as defence in depth, threat modelling and zero trust across Microsoft Azure cloud-native technologies. Our security engineers have a high degree of autonomy and are part of a high-functioning, motivated and forward-thinking team. 

    You have the chance to join a growing and passionate team, working on critical products, whilst being supported with training opportunities and mentoring. Joining our team will be an amazing and truly rewarding experience!


    What You’ll Be Doing   – the day to day:

    • Have a significant impact on the security of our systems that are used by thousands of firefighters, paramedics and hospitals worldwide.
    • Be a key part of our cyber security team, with a tangible impact on the security of our systems. 
    • Help our teams to model threats using the STRIDE model, against new designs, ensuring appropriate protections are in place.
    • Make a difference by mitigating vulnerabilities across our systems, helping developers to produce secure code and evaluating new next-gen security technologies.
    • Respond to security and compliance issues generated via analysis or automated tools
    • Work collaboratively cross-team, to impart your expertise across the organisation.
    • Be in the detail, working shoulder-to-shoulder with our technology teams.


    Who You Are - some of the essential things required to be successful in the role:

    • At least 1 year’s experience in securing software or infrastructure in cloud platforms (e.g. Microsoft Azure)
    • Your experience should include;
      • Securing systems in line with ‘Well-Architected Frameworks ’ e.g. Microsoft Well-Architected Framework.
      • Securing networks, web applications and cloud-native deployments. 
      • Working with toolsets such as vulnerability management, firewalls, SIEM, PAM, IDS/IPS, EDR, DLP, AV platforms. 
      • Designing, deploying or managing code security controls such as Static/Dynamic/Real-time application security testing tools. 
    • You should also:
      • Be well versed in securing Continuous Integration / Continuous Deployment practices. 
      • Understand current attack tactics, techniques and procedures along with the use of MITRE Attack framework. 
      • Have a passion for what you do and understand how your work impacts ESO’s success. 


    Who You Are – it’s desirable if you have any of the following: 

    • Exposure to Infrastructure as Code and Azure native technologies. 
    • Experience with threat modelling, NIST and CIS frameworks. 
    • Knowledge of application security standards such as OWASP Top 10. 
    Benefits & Perks! You will have fantastic benefits at ESO including but not limited to; 
    • Life insurance
    • Income protection insurance
    • A generous pension contribution
    • Private medical insurance including optical and dental
    • A health cash plan
    • Annual health and wellness allowance + cycle-to-work scheme 
    • Enhanced paternity leave and pay, enhanced adoptive pay, enhanced maternity pay
    • Enhanced short and long-term sick pay,
    • Great holiday entitlement 
    About ESO
    ESO is a fast-paced, growing data, technology and research company passionate about improving community health and safety through the power of data. We pioneer innovative, user-friendly software to meet the changing needs of today’s EMS agencies, fire departments, and hospitals. We’re small enough to be nimble and fun, but big enough to be a great place to work. We serve thousands of customers out of our offices across the US, Canada and Northern Ireland. 
    Are you ready to Make a Difference? 
    ESO is committed to creating a diverse and inclusive work environment and is proud to be an equal opportunity employer. We invite you to consider opportunities at ESO regardless of your gender; gender identity; gender reassignment; age; religious or similar philosophical belief; race; national origin; political opinion; sexual orientation; disability; marital or civil partnership status or other non-merit factor.
    Data Privacy
    We disclose your personal information to our private equity sponsor, Vista Equity Partners, and its affiliates, including Vista Consulting Group (collectively, “Vista”), for administration, research, database development, workforce analytics and business operation purposes, in line with the terms of this Privacy Policy. Vista processes and shares your personal information with its affiliates, including other Vista portfolio companies, on the basis of its legitimate interests in managing, administering and improving its business and overseeing the recruitment process and, if applicable, your employment relationship with ESO Solutions UK Ltd. If you have consented to us doing so, we also share your personal information with other Vista portfolio companies for the purpose of being considered for other job opportunities in the pooling system, both inside and outside the EEA. Please find a full list of all Vista portfolio companies at: and Vista’s privacy policy at Where this requires us to transfer your personal information outside of the EEA, please refer to the Privacy Policy for further details on cross-border transfers. In connection with the recruitment process, your personal data may be transferred outside of the EEA to Lever, Hirebridge, LLC and Criteria Corp., which provide applicant tracking and evaluation services. Hirebridge, LLC and Criteria Corp. have agreed to comply with the EU Standard Contractual Clauses to ensure that your personal information is adequately protected whilst outside of the EEA.
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Applications processed via employer's online application form