https://jobs.co.uk/jobs-results?Keyword=Application%20Security%20Engineer&Location=City%20of%20London&RadiusMiles=10 RSS feed for Application Security Engineer Jobs in City of London. en-gb Sun, 27 Sep 2026 04:15:41 GMT https://jobs.co.uk/job/mobile-application-security-engineer-londonhybrid-inside-ir35-ibsc--ab0c5783-f589-4a7e-8668-2896df1f8cc1 https://jobs.co.uk/job/mobile-application-security-engineer-londonhybrid-inside-ir35-ibsc--ab0c5783-f589-4a7e-8668-2896df1f8cc1 Tue, 22 Sep 2026 11:51:52 GMT Location: London | Salary: 10000-500000 Annual | Type: Contract | Mobile Application Security Engineer - Contract Location: London - Hybrid, 2 days per week onsiteContract: 6 months RollingIR35: Inside IR35 We are looking for an experienced Mobile Application Security Engineer to join a major mobile security programme, helping secure large-scale Android and iOS applications. Key Skills andamp; Experience Strong Mobile Application Security experience Android andamp; iOS security expertise Mobile penetration testing Threat modelling andamp; mitigation techniques Hands-on mobile application security assessments Experience developing and maintaining penetration-testing tools and scripts In-depth knowledge of mobile application security standards Understanding of authentication, authorisation, encryption and cryptography Exposure to DevSecOps, security automation and testing frameworks Strong experience with mobile security tools Experience researching emerging mobile security threats and technologies Key Responsibilities Assess and improve the security posture of mobile applications Conduct threat modelling, vulnerability assessments and security reviews Develop and maintain mobile security and penetration-testing tools ... Contract https://jobs.co.uk/job/application-security-engineer-hackajob-ltd--77bcd572-8006-4922-aea8-d49dceb9113c https://jobs.co.uk/job/application-security-engineer-hackajob-ltd--77bcd572-8006-4922-aea8-d49dceb9113c Tue, 22 Sep 2026 11:51:40 GMT Location: London | Salary: 10000-500000 Annual | Type: Permanent | hackajob is partnering directly with Simply Business to hire for this role.Who Are We?We insure small businesses and enable big dreams not just for our customers, but for our people and communities too. With over 1,000,000 active insurance policies, we protect builders, bakers, landlords and more than 1,200 other trades click apply for full job details Permanent https://jobs.co.uk/job/application-security-engineer-dgh-recruitment--1e93fdc7-01d0-4d06-ac00-71de5b74fd33 https://jobs.co.uk/job/application-security-engineer-dgh-recruitment--1e93fdc7-01d0-4d06-ac00-71de5b74fd33 Wed, 09 Sep 2026 23:00:00 GMT Location: City of London | Salary: £75,000 | Type: Permanent | Application Security Engineer Location: London (3 days per week required in the office) DGH Recruitment are currently recruiting on behalf of a leading global client in the financial services industry who are looking for an Application Security Engineer to join the team on a permanent basis. They are looking for an individual that speaks the language of developers, thrives within a purple team space ... Permanent