Senior Software Engineer Jobs in London

1 to 25 of 158 Senior Software Engineer Jobs in London

Senior Software Engineer Python React - AI Start-up

City of London, London, United Kingdom
Hybrid / WFH Options
Client Server
Senior Software Engineer/Full Stack Developer (Python React Full Stack) London to £120k Are you a skilled Software Engineer with Python and React skills looking for an opportunity to work on complex and interesting AI based systems? You could be progressing your career as … a founding member at a growing tech start-up as they expand their UK presence (already highly successful in the US). As a Senior Software Engineer you will work across the full stack, contributing to the core product, an AI driven intelligent video security platform with … join a small, growing team based in Bank, London with flexibility to work from home once a week. About you: You're an experienced Software Engineer, having built systems requiring scalability You have strong backend Python coding skills and also have experience with other backend technology in the more »
Employment Type: Permanent, Work From Home
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Senior Software Engineer - Sustainable Cloud-Native Platform

London, United Kingdom
Burns Sheehan
Senior Software Engineer | Sustainable Cloud Native Platform | Distributed Systems Up to £100,000 per annum plus bonus and stock Hybrid in London office Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems Are you a Senior Software Engineer with considerable cloud/infrastructure experience … impact on projects? If so I'm partnered with a very exciting cloud startup who have received record funding and are looking for innovative Senior Software Engineers to join their ambitious team! With a new CTO who has spent much of their career building out a world leading … art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider . What they're looking for in a Senior Software Engineer: Tech agnostic but preferable experience working with Golang, Rust or C/C++ Experience working on software infrastructure or more »
Employment Type: Permanent
Salary: GBP 100,000 Annual
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Senior Software Engineer

London Area, United Kingdom
Burns Sheehan
Senior Software Engineer – Prompting | LLMs | Gen AI £100-£120,000 per annum plus stock options London Python | Gen AI | LLMs | Prompt Engineering Are you a Senior Software Engineer with knowledge of large language models and prompt engineering? Are you passionate about the possibilities of … generative AI and the impact it can make? If so, please read on… Senior Software Engineer – We are working with an exciting, pre-seed funded, AI start-up to hire several Software Engineers who will be using generative AI, large language models (LLMs) and prompting techniques … to revolutionise the software engineering process. The Founders have hugely impressive backgrounds from top tech companies and have successfully scaled multiple start-ups. The product uses generative AI to provide end-to-end automation for everyone involved in the complex product engineering lifecycle. This is more than code generation more »
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Senior Software Engineer

Greater London, England, United Kingdom
Burns Sheehan
Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £100,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior Software Engineer with extensive knowledge of building distributed systems … impact on projects? If so... I'm partnered with a very exciting cloud startup who have received record funding and are looking for innovative Senior Software Engineers to join their ambitious team! With a new CTO who has spent much of their career building out a world leading … the-art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a Senior Software Engineer: Tech agnostic but preferable experience working with Golang, Rust or C/C++. In-depth knowledge of distributed systems, building more »
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Senior Software Engineer (Python / C++)

London Area, United Kingdom
Oho Group Ltd
Senior Software Engineer (Python/C++) - Data Driven FinTech A leading FinTech requires a Senior Software Engineer to join their dynamic team. As a Senior Software Engineer you will be responsible for analysing complex data sets to drive strategic decision-making … with financial data Strong analytical and problem-solving skills. Excellent communication skills with the ability to present complex data insights to non-technical audiences. Senior Software Engineer (Python/C++) - Data Driven FinTech more »
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Senior Software Engineer

Greater London, England, United Kingdom
Burns Sheehan
Senior Full Stack Software Engineer | B-Corp Start-Up | Net-Zero Carbon Up to £110,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Rust & React Senior Full Stack Software Engineer – We are working with an amazing Carbon Neutral, B … Corp certified start-up to find them a Senior Full Stack Software Engineer to join their purposely small, experienced engineering team. They have received over $10m in funding in the last two years and, as reach breakeven in the original market, they have some exciting tech challenges … in scaling their sustainable platform as they look to expand their reach. As a Senior Full Stack Software Engineer in a start-up your role will be multi-faceted: Designing and building new features to improve the lives of everyone who uses the platform, whether it’s more »
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Senior Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Tata Consultancy Services
Role: Senior Software Engineer (Full Stack) Job Type: Permanent Location: Hybrid (Central London) Ready to utilise your skills in building high quality software solutions capable of operating at enterprise scale? Are you passionate about leveraging your expertise in both front-end and back-end development to … create seamless, user-centric experiences across the entire software stack? Are you looking for an exciting opportunity where you can make a significant impact by delivering cutting-edge solutions that shape the future of technology? Join us as a Senior Software Engineer (Full Stack)! Careers at … an impact that matters, through challenging projects which demand ambitious innovation and thought leadership. Why it will mean more for you: Opportunities : As a senior developer, you'll have the chance to take on leadership roles within projects, guiding junior developers and making critical decisions that shape the direction more »
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Senior Software Engineer

Greater London, England, United Kingdom
Algo Capital Group
Senior Software Engineer A Global Systematic Trading Firm is looking for a Senior Software Engineer to help build out a next-generation trading systems. You will be involved in mission-critical projects in trade execution, application development and market data feed processing, shaping and … the design and implementation of next-generation trading systems, focusing on trade execution, application development, and market data feed processing. Develop robust, high-performance software solutions in C++ within a Linux environment to support trading operations, ensuring reliability, scalability, and low-latency execution. Take ownership of mission-critical projects … on developing high-performance, low-latency systems for financial trading or related domains. Solid understanding of Linux operating system internals and experience with developing software for Linux platforms. Experience with multi-threaded programming and distributed application architecture. Familiarity with algorithmic trading concepts, electronic trading protocols, market data feeds, and more »
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Senior Software Engineer, Connectivity

London Area, United Kingdom
Selby Jennings
Senior Software Engineer, Connectivity Digital Assets Prime Brokerage (Fintech) Office in London, UK (Remote flexible) A global fintech are currently seeking a talented and experienced Connectivity Software Engineer to join their team and play a crucial role in integrating new digital asset and traditional exchanges … requirements. Monitor exchange API performance and reliability, identify and troubleshoot issues, and implement solutions to optimize trading efficiency. Work closely with internal teams, including software developers, product managers, and compliance officers, to prioritize and deliver integration projects on time and within budget. Knowledge, Skills & Abilities: 7+ years of Finance more »
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Senior Software Engineer - AI Integration (Remote)

Greater London, England, United Kingdom
Hybrid / WFH Options
Oxford Economics
We are seeking a skilled Senior Software Engineer with expertise in Generative AI and Large Language Models (LLMs) to help grow adoption across our organisation. As part of our AI Platform team, you will play a pivotal role in developing and deploying systems that leverage the power … an agile environment, and have a knack for effective communication and stakeholder management, we’d love to hear from you! As our lead AI Engineer, you will work with the in-house team behind our first wave of AI Assistants and Tools in use across Oxford Economics. Your team … will be part of an established team of customer-focused individuals who are passionate about solving complex problems at scale. Our databanks and modelling software provide clients across the world with advanced economic forecasting technology covering a range of industrial and commercial scenarios. Your team will own and maintain more »
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Senior Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Understanding Recruitment
Role: Software Engineer Seniority: Mid/Senior Location: London (Mayfair)/Hybrid Salary: Up to £130k Our client is looking for a software engineer to join them at a Hedge Fund - they have offices in Switzerland, Singapore, Dubai and London looking to grow the London more »
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Senior Java Software Engineer

London Area, United Kingdom
Oliver Bernard
Senior Software Engineer - London, Hybrid - £75k + Bonus Senior Java Developer - FinTech London, St Pauls (2 days per week onsite) Up to £75,000 p.a. + 10-15% bonus Company Overview : Join a leading FinTech here in the heart of Central London, changing the way the … world sees payments. They're seeking a skilled Java Engineer to help create meaningful solutions using modern Java related technologies such as Spring Boot, Microservices, Kafka, Kubernetes, Docker all while harnessing the power of AWS. Key Responsibilities : Develop and maintain Java applications with Spring Boot and microservices. Collaborate with more »
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Senior Software Engineer (GoLang)

London Area, United Kingdom
Hybrid / WFH Options
Harrington Starr
Senior Software Developer – Golang – London The company This is an opportunity for a Senior Software Developer to join a rapidly growing Fintech company based in London. They are building cutting-edge innovative solutions that enables global financial institutions to get ahead of their competition. With plans more »
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Senior Software Engineer - Hedgefund

London Area, United Kingdom
Oliver Bernard
Senior Software Engineer - Hedgefund 2 - 3 days per week onsite, Oxford Street, London £85,000 - 125,000 depending on experience Core Java, Multithreading, Low Latency Hiring at all levels, strong package and flexible salaries. Global Hedgefund with a vibrant office on Oxford Street and flexible hybrid … days split between office and home are looking for Senior Java Developers. You will join their team, becoming a key member of the engineering function as they start to build out their product portfolio. Core Java, Multithreading, Low Latency If you haven't worked with these technologies before it more »
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Senior Software Engineer - Flexible Hybrid Working

London, England, United Kingdom
Hybrid / WFH Options
Oliver Bernard
Senior Software Engineer Salary £75,000 - 115,000 base + additional package DOE Offices based in Central London - Flexible hybrid working A rapidly growing global industry leader, known for its innovative solutions and disruptive approach is seeking a strong engineer from a JVM background. With substantial … solutions. Proficiency with Kafka. Familiarity with Kubernetes for container orchestration and deployment. Strong understanding of microservices architecture. Responsibilities : Design, develop, and maintain high-quality software solutions using Java and other JVM languages. Collaborate with cross-functional teams to architect and implement scalable, cloud-native applications on AWS. Mentor junior more »
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Senior Software Engineer, Core Prime Brokerage

London Area, United Kingdom
Selby Jennings
Senior Software Engineer, Core Prime Brokerage Digital Assets Prime Brokerage (Fintech) Office in London, UK (Remote flexible) A global fintech are currently seeking a talented and experienced SWE to join their team and play a crucial role in building the firm’s real-time event processing system … architectural decisions, upholding the highest bar for quality Maintain adherence to SLAs/SLOs Knowledge, Skills & Abilities At least 8 years of experience in software development/engineering Bachelor's degree in Computer Science, Engineering, Finance, or related field. Strong proficiency in programming languages such as Java, C++, or more »
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Senior Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
La Fosse
Senior Software developer - up to £70,000 + Bonus - Trade and Development Industry - Hybrid in London office 1x a month A new exciting opportunity has arisen for a senior developer to join one of the most recognizable organizations in the international trade and development industry. Joining a … ASP.Net Core Work alongside a small team of contractors and a scrum master Opportunity to take the lead and embrace more responsibility within a senior role Opportunity to see the real impact of your decisions on the overall process and legacy transformation that they are undertaking Working across all more »
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Senior Software Engineer - Health tech

London, England, United Kingdom
Hybrid / WFH Options
iO Associates - UK/EU
partnered with one of the UK's most pioneering and exciting businesses within the Health tech/care sector. They are looking for a Senior Software Engineer to join their team. This business has changed the world we live in and chances are, it has impacted millions … and become part of an incredible company, look no further. What they need from you: This role Is suited for someone with 5+ years Senior Experience .Net/C# expertise Azure or AWS Experience Good knowledge of other coding languages such as Python that would be bonus. Previous Health more »
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Senior Software Engineer - Up to £110k - Hybrid - London Office

City Of London, England, United Kingdom
Hybrid / WFH Options
iO Associates - UK/EU
Senior Full Stack Software Engineer - Up to £110k - Hybrid - London Office We are working with an organisation in the financial services industry who are looking to grow out their development team. The role will be instrumental in delivering high quality code from end to end. The role more »
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Senior Software Engineer

City Of London, England, United Kingdom
Hybrid / WFH Options
Harrington Starr
Senior Python Engineer - Build the Future of FinTech (Remote - £70,000 - £100,000) Do you dream of crafting cutting-edge APIs that empower FinTech firms and Neobanks? Join Harrington Starr as we partner with a global trailblazer in FinTech. Here, you'll design and build robust API platforms more »
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Senior Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Durlston Partners
Senior Trade Desk Engineer (Python) - HFT - London - Up to £300k TC Join a prominent HFT as they expand their desk based development team, focusing on options trading within European markets. Collaborating closely with Quants and Traders, you'll play a pivotal role in crafting cutting-edge, highly distributed more »
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Senior Software Engineer

London Area, United Kingdom
TrueNorth®
Hybrid - 3 days a week on-site (Paddington) I'm looking for a Senior Engineer, happy to pick up some leadership responsibilities, to join a BioTech start-up, who are looking to use AI/LLM to help in state of the art drug development. They have recently … pivoted to AI, originally had a Java code base but have moved to Python. They're looking to bring in a go to Python engineer, with AWS deployment experience and somebody who wouldn't mind learning React in the future. Ideal candidate would come from a Java or Python more »
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Senior Software Engineer

Greater London, England, United Kingdom
Durlston Partners
Senior Java Developer - Crypto Trading - LDN - Up to £160k base (DOE) + Bonus A crypto trading pod backed by a highly successful global hedge fund here in London, are looking to hire a Senior Developer into their world-class front office crypto/trading and technology team. 𝐀𝐬 more »
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Senior Enterprise Software Engineer

London Area, United Kingdom
Visionet Systems Inc
YOUR SKILLS • You’re a deeply motivated Software Engineer who wants to transform solutions to be resilient, self-healing, and scalable. • Burning desire to be part of world-class Software engineering team that works on various cutting-edge tools and technologies utilizing cloud native, cloud agnostic and … You possess a strong grasp on Azure and are comfortable designing solutions in a hybrid environment. • You have in-depth knowledge and experience in software development methodologies. • You are extremely motivated, passionate about learning and contributing to the team and the business with "can do" attitude. • You are familiar … with the latest trends in technology and best practices in Azure services and .NET development. EXPERIENCE & SKILLS REQUIRED Experience: • 5+ years of experience in software development with a strong emphasis on .NET, C#, and Azure services. • Proficient in building Web APIs and Web Apps using ASP.NET. • Demonstrated experience with more »
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Senior Software Engineer

London Area, United Kingdom
Montash
Job Title: Senior Developer Location: London (1 day onsite per week) Contract Duration: 12 months Sector: Public Sector IR35: Inside Interview Process: 2 stage, MS Teams SC Clearance: MUST HAVE SC We are seeking a highly skilled Developer to support a Sailpoint implementation. The ideal candidate will have demonstrable … passion for successful agile software delivery to join our public sector client on a 12-month contract. This role requires the ability to work collaboratively within a team and is based in London, with the expectation of being onsite one day per week. Key Responsibilities: Utilize Scripting languages such … as PowerShell or BeanShell to automate and enhance SailPoint functionalities. Manage the full life cycle of software delivery, with a focus on automation, repeatability, and efficiency. Employ Test Driven Development (TDD) practices to ensure software quality and maintainability, ensuring tests are decoupled from external systems. Integrate SailPoint solutions more »
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Senior Software Engineer
London
10th Percentile
£65,000
25th Percentile
£77,188
Median
£90,000
75th Percentile
£110,000
90th Percentile
£148,750