101 to 125 of 355 Senior Developer Jobs in London

Senior Python Developer - Finance London | Hybrid - 3 days per week £700/day Inside IR35 | 12-month contract Permanent/FTC options also available We're working on a number of new Senior Python Developer opportunities within a major Financial Services technology environment, supporting significant investment … term, with permanent opportunities up to £100,000 and 12-month FTC options up to £120,000 available. If you're a strong Python Developer with solid banking experience and you're looking for a sizeable programme where there is genuine investment in technology, this is well worth ...

Senior Python Developer - Finance London | Hybrid - 3 days per week £700/day Inside IR35 | 12-month contract Permanent/FTC options also available We're working on a number of new Senior Python Developer opportunities within a major Financial Services technology environment, supporting significant investment … term, with permanent opportunities up to £100,000 and 12-month FTC options up to £120,000 available. If you're a strong Python Developer with solid banking experience and you're looking for a sizeable programme where there is genuine investment in technology, this is well worth ...

through peer reviews and collaboration Contribute to a collaborative engineering culture focused on clean, efficient code and practical delivery Requirements Proven experience as a Senior Developer within a SaaS or enterprise software environment Strong hands-on expertise in C#, .NET/.NET Core, and SQL/ ...

delivering innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce. Role Overview: We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our back … office system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture. As a Senior Java Developer , you will architect and develop backend systems that power our games, player management, reporting tools, and third-party integrations. You will work closely with Product ...

Senior Azure DeveloperPosition OverviewThe purpose of this role is to design, build and deliver secure, scalable Microsoft 365, AI-enabled and Azure-based solutions for client projects, translating business requirements into effective technical outcomes. Salary & BenefitsThe budgeted salary for this role is between 70,000 - 80,000 a year ...

work and life About the Role This is more than just a job, it’s an opportunity to lead, innovate, and grow. As a Senior Software Developer in Test , you’ll: Work with our clients to design, build, and implement cutting-edge automation frameworks and testing solutions. Lead … lookout for passionate, talented individuals who are ready to make an impact. Whether you’re an experienced automation tester or a developer with a flair for QA, we want to hear from you. #J-18808-Ljbffr ...

Senior Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Team Background The Derivatives Credit Risk ...

advertise visa sponsorship. Right-to-work in the UK is preferred. Foreigners may still enquire with the employer. Oxford Knight is seeking a Senior Python Quant Developer in London for a full-time role in systematic trading. This position is ideal for UK-based applicants with existing right … competitive salary starting at £66,504.59 and an opportunity to join one of the world's premier investment firms. Job Description As a Senior Python Quant Developer, you will be instrumental in developing sophisticated components for both live trading environments and simulation systems. This role places you directly ...

Cerillion in London is seeking a Senior Developer to join our Software Engineering team. You will design, develop, and deliver enhancements to Cerillion’s core BSS/OSS products, mentor juniors, and collaborate with architects and cross-functional teams to ensure robust, scalable systems. The role focuses ...

Senior Full Stack Developer Lead the build of our flagship enterprise client platform serving FTSE 250 customers. London, UK • 5+ yrs Experience • Posted 2 days ago Responsibilities Own delivery of major features end-to-end, from technical design through production deployment. Lead architecture and code reviews ...

Senior Frontend EngineerA fast-growing AI SaaS company is seeking a Senior Frontend Engineer to enhance and expand its cutting-edge analytics platform. You will play a pivotal role in developing high-performance dashboards, immersive 3D visualisations, and entirely new applications on top of the existing platform. This … technical scalability challenges. Consortia is a specialist recruitment agency with consultants focused on global roles within UX, Product, Data, and Engineering markets. If this Senior Frontend Engineer role doesn't align with your preferences, but you are open to exploring other opportunities, please still register by applying to this ...

SEFE Group in London is seeking a Senior Developer to design, develop, and deliver business-critical applications across the trading lifecycle. You will combine hands-on engineering with technical leadership and mentoring to shape SEFE’s technology landscape. You will deliver scalable software for trading, risk, and operations ...

Senior Python Engineer | Infrastructure Automation London, London City Hybrid, 2 days a week onsite £75k plus 8% bonus, 10% pension, private healthcare 5+ years commercial experience with Python We're recruiting for a Senior Python Engineer to join a global AI & SaaS specialist. This is an opportunity ...

Working: Hybrid Are you looking to utilise your expertise in Salesforce development, architecture, and AI-driven solutions? We have an exciting opportunity for you - Senior Salesforce Developer ! Careers at TCS: It Means More TCS is a purpose-led transformation company, built on belief. We do not just help … Agentforce, Data Cloud, and AI-driven capabilities. Collaborate with architects, developers, and business stakeholders to drive digital transformation and innovation. The Role As a Senior Salesforce Developer , you will be responsible for designing, developing, and supporting scalable Salesforce solutions that meet complex business and technical requirements. You will ...

title: Senior webMethods Integration Developer Contract: 6 months rolling Rate: £625 - £645 per day inside ir35 Location: Remote - Some travel to Client site will be required (estimate 1-2 times per month to London and/or the South/South-East). SC security clearance is required … this role. I'm looking for a Senior webMethods Integration Developer to join an agile delivery team working on a mission-critical UK MOD platform. This is a genuinely hands-on development role for someone who knows webMethods Integration Server, Universal Messaging and API Gateway inside ...

Laotop recherche des profils Salesforce Senior Developer pour intervenir sur des projets au Royaume-Uni, dont Londres et Midlands. Le rôle implique du développement, de la gestion de projets et de l'architecture Salesforce. Plusieurs sites et séances hebdomadaires sont prévus; les entretiens sont planifiés prochainement. Aucun soutien ...

Elsevier is seeking a Salesforce Senior Developer to lead the design and delivery of scalable Salesforce solutions. You will work with cross-functional teams to implement robust, high-impact applications that align with business goals and regulatory standards. The role emphasizes standardization of business processes, ownership ...

Senior Full Stack Developer Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per month in office) Contract: Permanent, Full-time Package (perm): £70,000 - £85,000 + 10% Bonus + 10% Shares + Benefits (see more below) About Appvia Appvia … specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer ...

Senior Full Stack Developer - C#/Azure/Kafka Internal Title: Software Engineering Senior Consultant Location: London, UK (Hybrid - typically 1-2 days per week in office/client site) Contract: 6-month rolling contract Rate: £600-650 per day, Outside IR35 Start: ASAP About Appvia Appvia … specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, cloud-native architecture, event-driven systems, and improving delivery outcomes through better engineering practices. ...

DescriptionWe have an opportunity for an experienced Senior Software Developer to join our Technology team in London on a permanent basis. You'll join our Integration team at an important point in our journey, helping us to modernise and migrate our integration landscape. This is a hands … senior development role, with a strong focus on C# and .NET, APIs, microservices and cloud-based integration. Alongside building and improving solutions yourself, you'll use your technical experience to support and mentor other developers, sharing knowledge and helping to strengthen engineering practices across the team. About the team ...

/IBM Planning Analytics Developer (Senior) – 12 Month FTC Location: Hybrid Client: Financial Services Salary: up to £80,000 This role is a 12-month fixed-term contract. The Role This role sits within a high impact finance systems team and will focus on developing and enhancing ...

Talan Group is looking for a Senior Developer to join their technology team in Greater London. This role requires expertise in TypeScript and React, where you will design and deliver features across UI and backend services. You will collaborate closely with stakeholders to refine requirements and support live ...

Senior Python Quant Developer, London - Oxford Knight - UK-Based Only Company Company Oxford Knight Location Location London, UK Type Type full_time Sponsorship Check with employer UK-based applicants — this role does not advertise visa sponsorship. Right-to-work in the UK is preferred. Foreigners may still enquire … with the employer. This is an exciting opportunity for a Senior Python Quant Developer at Oxford Knight in London, focusing on systematic trading strategies. The role is ideal for experienced Python developers with a quantitative background already based in the UK and possessing existing right-to-work ...

Role: Senior Full Stack Developer Job Type: Permanent Base Office: London Working Structure: Hybrid About Us We are a growing digital team working with a wide range of clients to build, scale and maintain robust, high-quality web applications. Our culture is collaborative, innovative and focused on delivering … solve complex technical challenges, continuously improve how we work and build software that we can be proud of. We are looking for a Senior Full Stack Developer to join our team and play a key role in designing, delivering and maintaining modern, scalable and maintainable web applications ...

work sits at the intersection of cutting-edge AI and real-world business impact. The Role We are looking for a seasoned Lead Engineering Developer to join our team. This person will perform a role of working with the business on how to use our tools, understanding real business … successful commercial deployments of the tools that we provide. They will have architect and development responsibilities across our AI enabled platform. This is a senior role within a deliberately flat team structure. You will be expected to take ownership, bring fresh thinking, and collaborate closely with colleagues across disciplines. ...