26 to 50 of 78 Senior Software Engineer Jobs in London

Senior Software Engineer with Python and Java Our Client is looking to recruit brilliant Software Engineer with upwards of 5 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We’re looking to recruit … initially 2 excellent Software Engineers to work with an existing team of 4 software developers on a very large strategic consulting engagement within the Life Sciences industry. So if you any experience with the Life Sciences domain – then the Client would be very interested to see your profile. ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role … senior engineer positions available. You will work across a small, autonomous product squad with no dedicated product manager, engineers and designers share that responsibility collectively. Expect broad scope, high ownership and the ability to ship from day one. These are not squad-specific hires. The expectation is adaptability ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role … senior engineer positions available click apply for full job details ...

Software Engineer - Up to £160,000 - London Title : Software Engineer Company : AI Startup Location : London Pay : Up to £160,000 Additional: Very strong stock options Company : A recently funded AI start up, spun out from an elite academic institution are looking to grow their software … features with direct impact on customer value Work with product and ML teams to help translate abstract and complex concepts into concrete software Own key architectural decisions Continually make incremental improvements to their systems Help the team scale by mentoring junior team members Play a significant role ...

Senior Software Engineer | £800/day Inside IR35 | Contract | London – 3 Days Onsite Industry: Commodity Trading Location: London – 3 Days Onsite Job Type: Contract Our client is a global commodity trading organisation undergoing a major technology transformation focused on AI-driven engineering, operational automation and modernisation … related workflows. This role is suited to engineers who enjoy solving complex technical problems, rebuilding legacy workflows using modern technologies and working across software engineering, cloud infrastructure and AI tooling. What You’ll Be Doing Design and build scalable cloud-native applications and operational tooling. Develop AI and agent ...

Software Engineer - Up to £160,000 - London Title : Software Engineer Company : AI Startup Location : London Pay : Up to £160,000 Additional: Very strong stock options Company : A recently funded AI start up, spun out from an elite academic institution are looking to grow their software ...

optimise operations in real time, cutting costs and carbon today while building the foundation for the next industrial revolution. We're looking for a Senior Software Engineer to join our platform team and help us push the boundaries of what AI can do for the planet. … research teams. We operate as one cohesive unit, sharing tech stack, knowledge, and objectives. Our focus spans from fundamental ML research to commercial‐grade software development, offering diverse learning and impact opportunities. Why this role exists Carbon Re is scaling deployments from a handful of sites to dozens ...

Role: C++ 20/23 Software Engineer Client: Elite Tech Driven Trading Firm Compensation: Up to £200k + Bonus Location: London (Hybrid Working) Overview An Elite Tech Driven Trading Firm is looking for a highly talented C++ Software Engineer to join an elite group of individuals. … could be working on some of the world’s most performant ML pipelines that deal with millions of data points every second, or building software solutions with extreme scale, reliability, and latency considerations in mind. Key Responsibilities Building software solutions/products with scale, reliability, and latency considerations ...

Senior Software Engineer (Front End Applications) – Apple Online Store London, England, United Kingdom Software and Services The people and their ideas that inspire the innovation that runs through everything we do, from amazing technology to industry‐leading environmental efforts. Imagine what you could do here! Today … Engineering team is responsible for the global eCommerce platform that serves millions of customers around the world. We are a team of highly skilled Software Engineering Managers, Engineers, Analysts and Project Managers based in Cupertino, Austin, London, Singapore and Hyderabad. We have a phenomenal opportunity for a Senior ...

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) This is a hybrid role, 3 days remote and 2 days in the office Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background ...

Senior Software Engineer – AI Start-up – London – In-Office – Up to £200k Base + Equity We’re supporting a category-leading AI organisation building next-generation conversational agents used by major global brands. Their platform powers intelligent, human-like interactions across chat, email and voice, resolving millions … voice models and build scalable, production-ready pipelines. Identify patterns across customers and feed those insights into platform improvements. Qualifications 2+ years’ experience in software engineering. Strong competence with Python and TypeScript , including asynchronous programming. Ability to debug across deep technical stacks: distributed systems, latency, failure modes, data flows. ...

Senior Software Engineer - SC Cleared Location: London Salary: Up to £80,000 Clearance: Active SC Clearance and eligibility for DV To apply, email ...

Purpose of the Position As a Senior Software Engineer, you will be part of a cross-functional, service-oriented team, working on extending and maintaining our Affiliate Marketing platform. You design and build reliable services by writing clean, secure, and well-tested code, following modern engineering best … evolve over time, offering opportunities to gain deeper knowledge and experience within the online and affiliate marketing domain. Skills & Expertise 6+ years of professional software engineering experience Strong foundation in OOP and comfort working with multiple programming languages, ideally incl. Java/Spring Passion for clean, maintainable code with ...

Senior Software Engineer - Storage & Compute Stability Location London Business Area Engineering and CTO Ref # 10049715 Description & Requirements About the Team The Storage and Compute Stability Team is a trusted partner in ensuring the reliability, performance, and security of Bloomberg’s cloud storage and compute infrastructure. … operate at the intersection of infrastructure, software, and services, proactively identifying, solving, and preventing issues before they impact our users. Our focus is on streamlining processes, driving automation, and serving as a bridge between product teams and stakeholders. This enables Bloomberg’s engineers to innovate rapidly, while maintaining stability ...

Senior Software Engineer is required by this B2B Fintech business as they look to improve their product platform offering and build on their client success. You'll be expected to drive technology improvements, and play a pivotal role in a small software engineering team. This … improvement of their platform, leading feature development, liaising with stakeholders and Product teams internally, working through the entire life cycle. Designing and implementing new software solutions, providing technical guidance to a small team, ideally offering experience across. Solid Python web development in a B2B product setting Django FastAPI/ ...

companies worldwide, and we’ve grown into a global company of 1,800 people across 12 offices worldwide, with headquarters in London and Boston. Software Engineer – Billing Team Are you a Software Engineer who thrives on real ownership? At Perk, you’ll own the entire lifecycle … coding interviews; the bar is understanding your code and owning what you produce. Some examples of what it means to be a Senior at Perk Shape the bigger picture. You will refine the what to build and why, contributing to squad’s quarterly goals and long‐term vision with ...

levels of the client organization, generating results that allow our clients to thrive. What You'll Do BCG is looking for a Global IT Software Engineer Senior Manager to contribute to the development, deployment, and optimization of cutting-edge Generative AI (GenAI) tools and IT solutions. … will work closely with cross-functional teams, bringing technical expertise and hands-on problem-solving to ensure the successful delivery of innovative and scalable software solutions that support BCG s business objectives. Leading the implementation and optimization of GenAI applications and IT tools to enhance productivity and operational efficiency. ...

Purpose of the Position As a Senior Software Engineer , you will be part of a cross-functional service-oriented team, working on extending and maintaining our Affiliate Marketing platform. Your responsibilities include writing clean, secure, and well-tested code, following best-practice guidelines, and collaborating with … knowledge and experience within the online and affiliate marketing domain. Skills & Expertise Required At least 6 years of hands-on Java experience in commercial software engineering roles A positive, collaborative work ethic and strong sense of ownership Passion for writing elegant, maintainable code, with a solid understanding of SOLID ...

Durlston Partners LLP is hiring a Senior Software Engineer in London to design and develop core platforms that enable autonomous systems. You will work alongside exceptional engineers and tackle complex technical challenges in a collaborative culture. The ideal candidate has strong skills in C++, Java, Rust ...

Cititec is seeking a Senior Software Engineer for a contract position with a daily rate of £800, based in London with 3 days onsite. Join a global commodity trading organization focused on innovative AI-driven engineering solutions. In this role, you will work on automating engineering workflows ...

LexisNexis Risk Solutions is seeking a Senior Software Engineer II (Java/Spring) to build scalable, high-performance data-driven applications. You'll work on the Search and AI Platform, delivering innovative solutions that accelerate scientific discovery. The ideal candidate has expertise in Java, Spring Boot ...

leading consulting firm in the United Kingdom is seeking a Senior Software Engineer with expertise in Python and Java. The ideal candidate will have 5 to 10 years of experience in developing complex applications, particularly within the Life Sciences domain. This role offers flexible remote working ...

Description About the role: We are looking for a Senior Software Engineer to join our Send Core team. We provide the critical infrastructure that every sending transaction flows through - from 10 pounds sent to a friend to a multi-million dollar business payment. … mission to make sending money as easy and fast as paying for groceries with your card. How we work: We believe that an engineer is more than just a coder. Our engineers are focused on improving our customers’ experience - and they see the impact of their work on millions ...

it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. We are seeking a Senior Software Engineer to design, build, and operate research and production infrastructure for mid-frequency equity statistical arbitrage strategies. This is a hands-on engineering role with … experience building end-to-end systematic trading systems in a hedge fund or proprietary trading environment. We are also highly interested in strong software engineers from technology companies or adjacent domains who have built complex, data-intensive systems with high standards for correctness, reliability, scalability, and long-term maintainability. ...

looking for a Senior Embedded Software Engineer to develop advanced, real-time software solutions for complex systems. You will be responsible for delivering software from initial concept through to fully verified solutions, working across the full development lifecycle. Key Responsibilities Design, develop, and maintain high … quality software using best engineering practices Take ownership of software development from requirements through to verification and validation Support and enhance existing software in line with evolving project and customer needs Contribute to system architecture, design reviews, and technical decision-making Collaborate with multidisciplinary teams including systems ...