Operating Systems Jobs in London

Circle (NYSE: CRCL) is one of the worlds leading internet financial platform companies building the foundation of a more open global economy through digital assets payment applications and programmable blockchain infrastructure. Circles platform includes the worlds largest regulated stablecoin netwo...

CGI UK Careers Your mission found hereBy playing this video you consent to Google/YouTube processing your data and using cookies Learn more.Position Description:CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the Worlds Best Employers by Forbes magazi...

Exciting Opportunity! Join Odevo as a Service Delivery ManagerOdevo continues to redefine residential property management through technology innovation and exceptional service. As we scale our digital and operational capabilities across our UK Operating Companies (OpCos) we are strengthening how IT...

Office Technology SpecialistCooley is seeking an Office Technology Specialist to join the London Technology Office Operations department.Cooley Information Services (IS) embraces a culture of customer service excellence and all members of the department are expected to move this agenda forward. To t...

JLL empowers you to shape a brighter way.Our people at JLL and JLL Technologies are shaping the future of real estate for a better world by combining world class services advisory and technology for our clients. We are committed to hiring the best most talented people and empowering them to thrive g...

Amazon Web Services (AWS) is the worlds leading cloud computing platform helping millions of customersfrom startups to global enterprisesbuild and run applications without managing physical servers. Cloud computing allows organizations to access computing power storage and other technology services...

Internal Controls Lead - ITJob Title Internal Controls Lead - ITLocation London/Dublin/LeedsHybrid - 2 days per week (Dublin only)PermanentFlutter consists of two commercial divisions (FanDuel and International) and our central Flutter Functions; COO Finance & Legal. Here in Flutter Functions we w...

Listo is building the infrastructure layer for AI-native distribution.We help companies turn their existing APIs products and services into AI-native applications that run inside platforms like ChatGPT and other agentic systems.We automate the entire lifecycle of AI app integration: MCP server gener...

Job DescriptionSenior Automation Test Engineer ETRM / Trading PlatformsPermanentLocation: London / Home (Hybrid)Salary: 70000 - 90000 ( benefits)Skills: ETRM platform experience (Openlink Endur Findur etc.) Automationtesting Python Java etc.We are looking to recruit an Automation Tester with tradin...

Location: LondonFull-time In office 4 days/weekDo you have a deep knowledge of UK payment schemes with a particular expertise in CHAPSDo you have a strong understanding of regulatory compliance and the technical and operational processes behind payment initiation processing and settlementIf so we wo...

Location: LondonFull-time In office 4 days/weekDo you have a deep understanding of Bacs and Faster PaymentsDo you have a strong knowledge of UK payment schemes regulatory compliance and the technical and operational processes behind payment initiation processing and settlementIf so we would love to...

Talan is hiring for a Mid Level KDB Developer to support a leading FX eTrading team with its ongoing evolution of its electronic FX technology platform. The eFX technology function is responsible for a suite of mission-critical applications and services that underpin the firms electronic FX offering...

IT Technician Good Boys School in Wandsworth Location: WandsworthStart Date: January 2026Contract Type: Full-time PermanentSalary: Competitive dependent on experienceA Good Ofsted-rated boys secondary school in Wandsworth is seeking a knowledgeable and reliable IT Technician to support its growing...

We are seeking an experienced IT Engineer to serve as the primary technology support partner for our EMEA-based employees while also helping shape how IT leverages AI to scale automate and rethink service role is intentionally dual-focused.We believe initially 50-70% of your time will be spent deli...

We are seeking an experienced IT Engineer to serve as the primary technology support partner for our EMEA-based employees while also helping shape how IT leverages AI to scale automate and rethink service role is intentionally dual-focused.We believe initially 50-70% of your time will be spent deli...

About FlagrightFlagright is an AI-native AML compliance and fraud prevention platform serving fintechs and banks across 6 continents. We help financial institutions stop money laundering and fraud in real time. Were backed by Y Combinator rated #1 on G2 for transaction monitoring and growing fast.Ou...

Job DescriptionThis is an opportunity to join one of the most exciting success stories in cybersecurity a publicly listed SaaS organisation thats been a market force for 15 years and is scaling at pace.Salary:K comms (75000 OTE)Based: London (Remote)Youll be the technical force behind the sales effo...

Company OverviewInteractive Brokers Group Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich CT USA with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades known for our cutting-edge technology and client commi...

Senior Electrical Design Engineer (Data Centres) - LondonRED are an expanding international M&E consultancy with a proven track record in low energy design focused on providing excellent design solutions to clients.Through our market leading technical expertise we enable the worlds digital infrastru...

Principal Electrical Design Engineer (Data Centres) - LondonRED are an expanding international M&E consultancy with a proven track record in low energy design focused on providing excellent design solutions to clients.Through our market leading technical expertise we enable the worlds digital infras...