1 to 25 of 1,341 Software Engineer Jobs in London

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems and … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems and … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems and … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and related services. Additionally, the … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … write and understand design documentation using C4, sequence diagrams and workflows. Excellent problem-solving skills and attention to detail. Solid understanding of logging, monitoring and observability to understand if software is functioning as required. Strong communication and teamwork skills. Preferred Skills: Experience with cloud platforms e.g., AWS, Azure, Google Cloud. Knowledge of DevOps practices and CI/CD pipelines. More ❯

Job Summary: We are looking for a talented and motivated Software Engineer to join our development team. You will be responsible for designing, developing, testing, and maintaining high-quality software solutions that meet user needs and business objectives. You’ll work collaboratively with cross-functional teams to build scalable, efficient, and secure applications. Key Responsibilities: Design, code … test, and deploy software applications and systems. Collaborate with product managers, designers, and other engineers to understand requirements and propose technical solutions. Write clean, efficient, and well-documented code following best practices. Debug and resolve technical issues reported in production and development environments. Participate in code reviews, unit testing, and other quality assurance activities. Maintain and improve the performance … scalability, and reliability of existing systems. Stay up to date with emerging trends and technologies in software development. Contribute to the overall architecture and technical direction of the project. Required Skills and Qualifications: Bachelor’s degree in Computer Science, Engineering, or related field. Proficiency in one or more programming languages (e.g., Java, Python, C#, JavaScript). Experience with frameworks More ❯

central role in the Fintech ecosystem to identify and back revolutionary new businesses. The role Our Tech Team at Fasanara is looking to bring onboard a senior Full-Stack Engineer who will be essential in expanding the capabilities across our investment tools, working on several Greenfield projects. You'll have the opportunity to partner across multiple business areas building … scalable innovative solutions. This role would suit an ambitious, seasoned engineer who wants to be part of an expanding engineering team having a big impact. Responsibilities Design and develop scalable, high-performance internal platforms and applications for core business functions including Credit Trading, FX Hedging, Portfolio Monitoring, and Treasury. Collaborate cross-functionally with investment, operations, and data teams to … translate complex business workflows into efficient, maintainable software solutions. Drive the full software development lifecycle - from technical design and implementation to testing, deployment, and production monitoring. Contribute across the stack, including backend services, frontend interfaces, and data engineering pipelines as needed. Provide technical leadership and mentorship to more junior team members, fostering a culture of learning, accountability, and More ❯

Senior Software Engineer- Energy & Resources Analytics Platform London, United Kingdom req2463 Posted on: 28/05/2025 - Application Deadline: - About Baringa: We aim to build the world's most trusted consulting firm, creating lasting impact for clients and pioneering a positive, people-first culture. We collaborate with a diverse range of clients from FTSE 100 companies to … hubs are located in Europe, the US, Asia, and Australia, working worldwide to tackle challenges and make an impact. Our Market, Advisory, and Analytics practice seeks experienced Senior Platform Software Engineers to join our team. We are leaders in modelling energy markets, providing insights to drive change in a decarbonising industry. Our work involves varied modelling, data, and processing … analytics outputs via GUIs, APIs, and other systems, with confidence in compliance and governance. To support our growth, we are building a dedicated global Platform team. We seek experienced software engineers to help architect, implement, and support tools fundamental to Baringa's success. This team values curiosity, problem-solving, and the flexibility to adopt suitable technologies. The next-generation More ❯

at the full picture - what you earn, how you spend, and what's left at the end. On the B2B side, we have Render. Render is our award-winning software-as-a-service platform that allows Abound to make better, less risky lending decisions. And less risky decisions mean we can offer customers better rates than they can usually … high-street banks to other fintechs, can offer affordable credit to their customers. We're looking for an experienced individual to join us in the role of Senior Java Engineer . This position requires an enthusiasm for exploring and understanding new business areas. We maintain a culture of ownership and value engineers who are excited about the business and … S3, CloudWatch), Retool, Jenkins or GitHub Actions for CI/CD pipelines, Python for certain microservices or data-related tasks Who You Are Seven or more years of professional software engineering experience, with a strong background in Java 2-3 years of professional Python experience (e.g., building microservices, data-related tasks) Proven experience leading the development of significant new More ❯

Title: Senior Engineer, Creative Optimizations WHO WE ARE Choreograph is WPP's global data products and technology company. We're on a mission to transform marketing by building the fastest, most connected data platform that bridges marketing strategy to scaled activation. We work with agencies and clients to transform the value of data by bringing together technology, data, and … agencies, and with our customers, to develop and scale our DCO platform, a leading digital advertising optimization suite that delivers amazing outcomes for brands and audiences. As a Senior Engineer, you will work side by side with a Product Manager, a Design Lead, and your engineering team to design, build, deliver, and operate purposeful solutions. The role is a … ML/AI highly desirable. Proven experience contributing to product strategy development with Product Management teams. Experience in SaaS product engineering and operations highly desirable. Proven experience in modern software development and testing practices and implementing these in teams, with a willingness to share, partner and coach engineers, product people, and operations through pragmatic and effective development and delivery More ❯

of our entire stack, contributing to the global control plane, to working on new revisions of hardware to deployed to the field. This team works the full stack from software, networking, operating system, to the hardware and network gear level. Design, write and deliver software and infrastructure to improve the reliability, scalability, latency, and efficiency of our services. … all non-exceptional service conditions. Influence and create new designs, architectures, standards, and methods for large-scale distributed systems. Engage in service capacity planning, service integration and geo-expansion, software performance analysis and system tuning. Candidate must be solutions-oriented oriented using rigorous logic and methods to solve difficult problems with effective solutions, probing all sources for answers. Conduct … build useful tools to support network operations (internal and external). Qualifications and Experience The Essentials: Passionate about SRE, DevOps, Automation, and infrastructure platforms. Understand the mechanical sympathy between software workloads and the demand it places on the underlying hardware. Working knowledge of non-virtualized server hardware, datacenter operations, and principles of networking Experience with FreeBSD or other BSD More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the … understanding of web development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the … understanding of web development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯

If you're ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. THE WORK: We are looking for a Senior Software Engineer passionate about solving ambitious problems and working directly with Ripple Trading and Markets in the cross-border payments space. We are passionate about the growth of our … partners. Continuing to support and complement Ripple's Payments, Custody and Stablecoin business units WHAT YOU'LL DO: Be an ambitious builder, working up and down the stack, mixing software engineering, data engineering, and distributed systems knowledge to build modern enterprise payment applications. Build reliable, high-throughput, low-latency microservices to power a diverse range of trading use cases … Engage in the complete software development lifecycle by collecting requirements, showcasing solid software design principles, and maintaining operational excellence through unit and integration testing Be a true owner, managing and supporting Trading Engineering applications throughout product lifecycle Work with teams across the organisation, including product, legal, and business development to think beyond the technical implications of your design More ❯

engineers on best practices, architecture, and quality. Education Bachelor's Degree: In computer science or a related field. Experience: 7+ years of relevant work experience Responsibilities As a Staff Software Engineer - Platform Engineering, you will design, implement, and maintain scalable and reliable infrastructure solutions. Your role will involve automating processes and collaborating with development teams to ensure seamless … integration and deployment of applications. You will play a crucial role in enhancing the efficiency and effectiveness of our software development lifecycle, ensuring the highest level of service quality for clients and stakeholders. Infrastructure Automation: Develop and manage processes to deploy, configure, scale, and monitor applications using infrastructure as code. Development Collaboration: Work with development teams to facilitate experimentation … Our Platform Engineering team is responsible for designing, implementing, and maintaining scalable and reliable infrastructure solutions We play a crucial role in enhancing the efficiency and effectiveness of our software development lifecycle, ensuring the highest level of service quality for clie Moody's is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to More ❯

White Collar Factory (95009), United Kingdom, London, London Senior Software Development Engineer - Velocity Black UK Velocity Black by Capital One harnesses the power of artificial intelligence, the warmth of human experts and the convenience of the latest interfaces to help high-performance people actualize the full potential of their lives. It's concierge, reimagined for the digital age. … we share: the relentless pursuit and celebration of excellence, actualising the full potential of our lives, and impacting the world in a positive way. We are looking for talented software engineers to join our global Velocity Black by Capital One engineering team, with the opportunity to specialise in frontend, backend or work in a full stack capacity. As a … Senior Software Development Engineer, you'll have the opportunity to be on the forefront of driving a major transformation with the marrying of these two innovative companies. Joining a startup deeply invested in technology with Capital One's entrepreneurial spirit and customer-first, tech-led culture, creates an environment where engineers can continue to disrupt the status quo More ❯

SaaS products. As part of the product development capability here at Orgvue, we make use of emerging technologies bringing many opportunities for learning and innovation. We are seeking an engineer with strong software development skills and experience developing cloud based microservices to join our services team which enables our SaaS products. What you will be doing Working in … energetic teams Ability to see the big picture and keep an eye on long-term goals and direction, while taking care of short-term needs Familiarity with principles of software development best practices Desired Experience of an Ideal Candidate: BSc or MSc in Computer Science, or similar Minimum 3 years commercial experience writing performant code Practical experience of Continuous More ❯

consumer experiences, enabling business growth, and advancing operational excellence. Team Description: The Product & Engineering team within Workforce Technology focuses on integrations between various HCM systems. The team comprises of software engineers dedicated to building solutions that help automate HR processes, improve end user experience and improve data integrity between various HR systems that drive payroll processing, benefit enrollments, time … Own comprehensive technical documentation of integrations and other applications for document versions and archives Must Haves (Years of Experience, languages, programs, tools, etc.): Minimum 5 years of experience developing software applications Minimum 5 years hands-on experience configuring systems Minimum 5 years of experience with some of the following specific technologies: OData, REST, SOAP, FTP/SFTP, JDBC, CSV … Expertise in comprehensive testing lifecycle inclusive of Unit Testing, User Acceptance Testing, Regression Testing, and Defect Remediation. Comfortable with Agile and Waterfall development lifecycles for project deliveries Experience with software development lifecycle methodologies such as Scrum, Kanban, etc. Expertise in secure software development and secure coding practices Ability to translate business requirements into software technical specifications Act More ❯

messaging patterns, exposure toMulesoft/Kong is a plus - On-premise/cloud-basedinfrastructures, SDLC pipelines, and deployments/configurations and definition/evangelism of best practices/standards - Software delivery, including CI/CD and relatedDevSecOpspractices, working withcloud-basedplatforms such as Azure or AWS(preferred) - Experience working on AI/Gen AIimplementations and underlyingarchitecture, and models - Application testing More ❯

Senior Software Engineer London, UK - Fully Onsite Key Technologies: Java, JavaScript, React, Docker, Kubernetes Perm Role | £80,000 - £120,000 Harrington Starr has partnered with a leading financial institution on a mission to transform investment banking through cutting-edge technology. Their Investment Banking Middle Office Technology team plays a crucial role in enabling efficient trade management with institutional … development experience Expertise in microservices architectures (Spring Boot, Docker, Kubernetes) Strong experience with GUI technologies (React, TypeScript, HTML5) Experience in full SDLC (Git, Maven, Bamboo) Strong understanding of modern software design & architecture A proactive mindset and a collaborative approach Key Benefits: Private pension plan Up to £120,000 base salary 30 days holiday allowance Private health & life insurance Enhanced More ❯

Senior Software Engineer London, UK - Fully Onsite Key Technologies: Java, JavaScript, React, Docker, Kubernetes Perm Role | £80,000 - £120,000 Harrington Starr has partnered with a leading financial institution on a mission to transform investment banking through cutting-edge technology. Their Investment Banking Middle Office Technology team plays a crucial role in enabling efficient trade management with institutional … development experience Expertise in microservices architectures (Spring Boot, Docker, Kubernetes) Strong experience with GUI technologies (React, TypeScript, HTML5) Experience in full SDLC (Git, Maven, Bamboo) Strong understanding of modern software design & architecture A proactive mindset and a collaborative approach Key Benefits: Private pension plan Up to £120,000 base salary 30 days holiday allowance Private health & life insurance Enhanced More ❯

are now developing solutions to provide impacted stakeholders in the financial sector and other industries with reliable data and actionable intelligence. The role: We are looking for a versatile Software Engineer to lead the build-out of our customer-facing products and technology stack. This role focuses on developing, integrating, and deploying core SaaS and DaaS platforms that … partners to deliver end-to-end systems that are robust, interactive, and cloud-native. Your responsibilities include: Designing and building scalable, cloud-native backend systems that serve wildfire simulation software and data to end users Developing robust, well-documented APIs to enable seamless integration with client tools and internal systems Creating intuitive, interactive front-end interfaces for geospatial exploration … and map-based user experiences for risk insights and operational planning Collaborating with scientists, engineers, and domain experts to translate research outputs into production-ready tools Supporting GPU-accelerated software development and helping optimise performance across our stack Contributing to DevOps/MLOps pipelines and ensuring reliable deployment, testing, and delivery workflows Continuously iterating on features based on user More ❯

are now developing solutions to provide impacted stakeholders in the financial sector and other industries with reliable data and actionable intelligence. The role: We are looking for a versatile Software Engineer to lead the build-out of our customer-facing products and technology stack. This role focuses on developing, integrating, and deploying core SaaS and DaaS platforms that … partners to deliver end-to-end systems that are robust, interactive, and cloud-native. Your responsibilities include: Designing and building scalable, cloud-native backend systems that serve wildfire simulation software and data to end users Developing robust, well-documented APIs to enable seamless integration with client tools and internal systems Creating intuitive, interactive front-end interfaces for geospatial exploration … and map-based user experiences for risk insights and operational planning Collaborating with scientists, engineers, and domain experts to translate research outputs into production-ready tools Supporting GPU-accelerated software development and helping optimise performance across our stack Contributing to DevOps/MLOps pipelines and ensuring reliable deployment, testing, and delivery workflows Continuously iterating on features based on user More ❯

Senior Software Engineer I page is loaded Senior Software Engineer I Apply locations London time type Full time posted on Posted Yesterday job requisition id R7649 Company Description We're - you might not know our name, but companies like eBay, ASOS, Klarna, Uber Eats, and Sony do. That moment when you check out online? We make … and our partners. And we need your help. Join us to build the digital economy of tomorrow. Job Description Global payments are complex and ever-evolving. At Checkout our software engineers develop the next-generation payments technologies that enable our Merchants to boost their acceptance rates, cut processing costs, fight fraud, and create cutting edge technology that enables extraordinary … customer experiences. We're looking for Senior Software engineers who bring fresh ideas, have a curious nature and are passionate about working in an Engineering environment which focuses on building products to achieve the company's strategic goals. You'll get to work with teams from across 's portfolio of products and services who all have a real customer More ❯

Telecommute: Yes-May consider hybrid teleworking for this position Travel Required: Yes, 10% of the Time Relocation Assistance: Relocation assistance may be available Positions Available: 5 Job Title: Senior Software Engineer Salary: Manchester: £41,800.00 - £62,600.00 London: £45,900.00 - £68,900.00 Define Possible at Northrop Grumman UK At Northrop Grumman UK, our mission is to solve the … development and the impact we have within the community. So, what's your possible? Opportunity: This is more than just a job; it's a mission. As a Senior Software Engineer, you play a pivotal role in designing, developing, and maintaining the critical applications that power our services. You will be self-driven and organized with a passion … everyone has their strengths so whether you lean more Frontend (JavaScript, React) or Backend (Java) we would like to hear from you. Our UK Defence business is a Sovereign software and systems centre of excellence. As well as developing and supporting UK-wide and internationally deployed multi-domain command and control systems, our work is critical to the modern More ❯

Senior Software Engineer - Identity and Access Management (f/m/d) Join Contentful as a Senior Software Engineer and take a central role in enhancing our Identity and Access Management ( IAM ) capabilities. Our platform serves billions of requests daily, with customers trusting us with their content-making scalability and security equally crucial. We seek engineers … ways of working and our development processes as well as our domain and its components. What you need to be successful? Professional Experience : Proven track record as a Senior Software Engineer in product development, with demonstrated success in building high-traffic APIs and services. Technical Expertise : Strong proficiency in Ruby, TypeScript/Node.js, relational databases ( MySQL/PostgreSQL More ❯