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Job Details


Belfast, Northern Ireland


Commensurate with Experience


3 + years


Frontend Developer

  • How You’ll Support Our Mission

    Our Registry team in Belfast owns the development of a greenfield application used by hospitals to record a patient's journey and provide life-changing insights to healthcare improvements.
    We are augmenting one of the teams with a Frontend Developer. You will be responsible for building scalable, testable, and accessible Angular UI screens that communicate via APIs built upon the latest cloud technologies. You will help us to evaluate and drive our front-end offering, looking at new trends and helping us to stay secure. Our engineering teams leverage modern, cloud-based serverless architectural patterns as well as the latest CI/CD DevOps tooling and processes. 
    Our application uses Angular with SCSS and Jasmine and Karma for unit testing. There will also be the opportunity to contribute to an engineering-wide shared component library (using PrimeNG), which is used by many teams at ESO to allow for knowledge share and consistency across apps.
    You will have the chance to join a growing and passionate team, working on critical products, whilst being supported with training opportunities and being mentored by one of Belfast’s leading UI Engineers. There will also be an opportunity to join our engineering-wide Frontend guild, aimed at discussing the latest trends, sharing knowledge, and bringing that back to the Registry space.  Joining our team will be an amazing and truly rewarding experience. 

    The Belfast Registry team have full autonomy over all applications, from implementation right through to delivery into production. You will be part of the Product Engineering team, reporting to the Development Manager. 


    What You’ll Be Doing – the day to day

    • Have the opportunity to Make a Difference in people’s lives by creating an application that drives lifesaving research
    • Be a core part of our engineering team, with tangible impact on a range of applications that we build.  
    • Push the envelope on the aesthetic quality of the experiences we provide.  
    • Mentor other develops who aspire to grow their front-end knowledge. 
    • Work collaboratively cross-team, to impart your expertise across the organisation. 


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

    • At least three years’ experience in software engineering developing highly reactive user experiences.
    • Angular/React/Typescript (or similar UI framework).
    • Unit testing and mocking frameworks.
    • Git for source control.


    You should also; 

    • Be well-versed in Continuous Integration / Continuous Deployment practices.  
    • Have an understanding of testing philosophy (e.g. the test pyramid).  
    • Have a passion for what you do and understanding how your work impacts ESO’s success.


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

    • Exposure to Microservice architectures 
    • Exposure to Cloud Platforms (Azure / AWS / GCP) 
    • Working understanding of WCAG 2.0 and above.
    • Semantic HTML before using ARIA, if such an element exists.  
    • Knowledge of and ability to use WAI-ARIA where necessary and mimicking (the equivalent) browser behaviour in script.  


    Benefits & Perks:

    • 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 six US offices and our Belfast, Northern Ireland office. 

    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