python software engineer cyber security jobs in London

Vacancy detail Python Engineer - Mid and Senior – 70-82k 70-82k GBPCompetitive salary up to 70k for mid level and up to 82k for senior, plus a performance bonus, 28 days holiday plus bank holidays and your birthday off, private medical insurance, learning and development, mental health support, and flexible hybrid workiHybrid WORKINGLocation: Holborn,...

Python Engineer – MongoRemote 85k Plus Bens Quant Capital is urgently looking for a Python Engineer to work for our high profile investment management vendor.Our client is a well known global wealth management HFT software business. They provide valuations and pricing of derivatives to most of the buy side.The environment is that of Facebook or Google,...

The role You will evolve Checkout.com’s security posture across our multi-cloud environments and SIEM platform. This role sits at the intersection of cloud security engineering and detection capability — responsible for both hardening the infrastructure we operate on and ensuring we can see what's happening across it. You will lead security integration...

Vacancy detailOT Cyber Security Senior Manager – Global Consultancy – 120-140k120,000 - 140,000 GBP• A competitive salary, up to 30 days' annual leave, private medical insurance, and 3 extra days' leave per year for charitable work.Hybrid WORKINGLocation: Locations: London, Birmingham, Manchester, Edinburgh (UK). Candidates should be able to commute to...

Description You will join a front-office engineering team that builds and operates core Rates trading tooling where correctness, resilience, and latency matter every day. The environment is fast-moving and highly collaborative, with strong expectations for production ownership, rapid iteration, and high-quality delivery. Job Responsibilities Build and...

Join us and shape the future of risk technology with your expertise in data engineering and software development. You will have the opportunity to push boundaries, innovate, and make a meaningful impact on our business. We value diversity, inclusion, and respect, fostering a collaborative environment where your ideas matter. Experience career growth and...

Cyber Security Researcher Location: London, Greater London, GB, EC2V 8 Start Date: September 17, 2026 Application Deadline: December 16, 2026 hackajob is partnering directly with CoreTech Security to hire for this role. CoreTech is looking for candidates with a STEM background, which may also include experience of research, cyber security or ethical...

About CLS: CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars’ worth of currency flows through our systems each day. Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk...

About CLS: CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars’ worth of currency flows through our systems each day. Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk...

Python Trading Engineer100,000 + BonusQuant Capital is urgently looking for a Python Trading Engineer to join our high profile client.Our client is a well known global High Frequency Trading firm. They value technology especially the opensource variety as well as scalability and robust performance (much like their track record).This is a bleeding edge role...

Experis - ManpowerGroup is seeking an AI Principal/Senior Software Engineer for a remote/ London-based contract. You will drive the design and delivery of agentic AI security applications in a Python/AWS environment, leading engineering teams and shaping architecture.The role focuses on hands-on development, secure delivery, and building reusable AI-native...

AI Security Institute is seeking Software Engineers to join the Core Technology Team. You will work on research-oriented software and infrastructure, within small teams, tackling real-world AI safety challenges.You will collaborate with world-class researchers and engineers, mentoring from leadership and working with cutting-edge tools on AWS and open-source...

Vacancy detailSoftware Engineer60,000 - 75,000 GBPHybrid WORKINGLocation: Cambridge, Central London, Greater London – United Kingdom Type: PermanentSoftware Engineer (C++/Rust)Cyber Security & Secure Systems EngineeringLocation: Cambridge / Hybrid WorkingSalary: Up to 75,000 + Transport Allowance + Benefits PackageAbout the RoleWe're supporting an...

Job DescriptionCyber Security Architect, Engineering Lead, Zero Trust, Microsoft Sentinel, AI Governance, London, COR7700A Cyber Security Architect opportunity has opened up with a well-regarded professional services firm, offering the chance to shape how security is designed and delivered across identity, cloud, data, and emerging technologies. Could this...

Join us and shape the future of risk technology with your expertise in data engineering and software development. You will have the opportunity to push boundaries, innovate, and make a meaningful impact on our business. We value diversity, inclusion, and respect, fostering a collaborative environment where your ideas matter. Experience career growth and...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life...

Python Software Engineer – Data & Research PlatformsClient: Elite Proprietary Trading FirmCompensation: Up to £250,000 Base + BonusLocation: London (Hybrid)OverviewAm elite proprietary trading firm is seeking an experienced Python Software Engineer to join a growing engineering team focused on building large-scale data and research platforms that underpin...

Job ID: Location: London, GB, SE1 2AFJob Function: Technology ConsultingEmployer: EY Global ServicesApply by: Company: EYAt EY, we’re all in to shape your future with confidence. We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working...

Sanderson Recruitment is seeking a skilled software engineer for a major UK Defence and National Security programme based in London, Manchester, or Cheltenham. The role focuses on building and delivering solutions in a highly secure environment, with on-site collaboration at core locations.Ideal candidates have strong Python or Java skills, AWS proficiency,...

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to...