We are looking for an experienced principle application security engineer who will champion a shift-left security philosophy by integrating automated security analysis into CI/CD pipelines SAST scanning, GitHub Actions, and SCA working closely with development teams to help guide threat modelling session and to identify, remediate, and prevent vulnerabilities while ensuring compliance with various security frameworks such as NIST and ISO27001.
As a principle application security engineer you will be responsible for embedding security into the software development lifecycle (SDLC) across the organisation’s .NET, Java, and Node.js technology stacks. This role champions a shift-left security philosophy by integrating automated security analysis into CI/CD pipelines, SAST, GitHub Actions, and SCA. As a principle engineer you will work closely with development teams to help guide threat modelling session and to identify, remediate, and prevent vulnerabilities while ensuring compliance with open-source licensing obligations.
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At OneAdvanced, we are at the forefront of delivering sector-focused technology solutions that simplify complexity, drive meaningful progress, and help build a fairer, more inclusive society.
We’re much more than a software company. We deliver SaaS workflow applications and IT services that power organisations across Education, Government, Healthcare, Legal, Manufacturing, Housing, Retail, and more.
OneAdvanced is one of the UK’s largest business software and services companies. Based in Birmingham (The Mailbox), operating across the UK, Ireland, India, and Australia.
Our secure, scalable platform, including OneAdvanced AI, our private AI service for UK organisations, powers connectivity and innovation across critical sectors. Alongside our software are our IT services, including hosting, managed services, and application modernisation.
We strive to create an inclusive workplace that drives innovation and collaboration, championing diverse perspectives and ideas. Our Environmental, Social and Governance (ESG) strategy is embedded in everything we do, guiding us to create meaningful impact for our people, our customers and the planet.
Join us and become part of a team that’s powering the world of work and making a real difference.
Learn more at www.oneadvanced.com

Founded in 2008 OneAdvanced has grown into one of the UK’s largest providers of business software and services serving global customers with an annual turnover of £330M+. We manage 1.5 million 111 calls per month, support over 2 million FE learners across the UK, handle over 10 million wills, and so much more.
Powering the world of work. We power the world of work through our sector-focused software, that effortlessly gets the job done, giving you the freedom to focus on thriving for your customers and your people.
Our brand has evolved through the years to meet the changing needs of our customers. Our story has not yet finished, in fact it’s just starting…
Our customers include the NHS, Department for Work and Pensions (DWP), Café Nero, Harvey Nichols, Irwin Mitchell, Manchester University, SpaceNK, London City Airport, Virgin Money, and many more.
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